Gunma, Japan: What to pack, what to wear, and when to go [2024]

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Ready to pack for Gunma, Japan? If you're planning to go to Gunma, I've got some important information about when to go, what to wear, and what to pack.

Contents

When to go to Gunma, Japan

Based on the climate and weather in Gunma, Japan, the best time to go is June. See below for details.

What to wear/what to pack for Gunma, Japan

Already know when you're traveling?

Here are some general tips on what to wear in Gunma, as well as several items to remember to pack when traveling there.

What to wear/what to pack for Gunma, Japan by month

January

January in Gunma is brisk. The average overnight temperatures in the area are in the high 20s F (single digits below 0 C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your belongings.

  • AirTag to track your luggage

    With airlines repeatedly losing things these days, an AirTag can locate it anywhere anywhere: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Travel neck support pillow

    A versatile choice is this one

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Ensure that you pick the necessary type. Many adapters on sale are simply plug changers and expect your devices to convert the voltage themselves. If yours can't do that they could get destroyed. This one should be sufficient for most countries.

  • Luggage scale to avoid fees

    Airlines charge excessive prices for overweight luggage. Avoid penalties with this

February

February in Gunma is pretty cool. The average overnight temperatures in the area are in the low 30s F (single digits below 0 C). It tends to rain occasionally.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your belongings.

  • AirTag to track your luggage

    With airports repeatedly losing things recently, an AirTag can help you find it anywhere in the world: AirTag for iPhones.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Avoid surcharges with this

  • Travel pillow

    Our fave is this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Check that you find the right kind. Most adapters currently being sold are just plugs and expect your devices to change the voltage themselves. If yours can't do that they could burn up. This one should work in most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

March

If you go to Gunma in March, you will notice that it is pretty cool. Expect it to rain once in a while. Daytime temperatures are in the 50s F (low 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • AirTag to track your luggage

    With airlines repeatedly losing luggage these days, an AirTag can help you find it anywhere on earth: AirTag for iPhones.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your belongings.

Comfort + Essentials

  • Travel neck pillow

    Our fave is this one

  • Plug adapter

    A plug adapter that supports outlet types A and B. Be sure to choose the necessary type. The vast majority of adapters currently sold are simply plug changers and require your devices to adjust the voltage themselves. If yours can't do that they could get fried. This one should be sufficient for most places.

  • Luggage scale to avoid fees

    Airlines charge excessive prices for overweight luggage. Save money with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

April

April in Gunma is crisp. The average overnight temperatures in the area are in the 40s F (single digits C). It tends to rain once in a while.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • AirTag to track your luggage

    With airports frequently losing bags nowadays, an AirTag can find it anywhere anywhere: AirTag for iPhones.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your stuff.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Check that you choose the necessary kind. A lot of adapters for sale now are simply plugs and require your electronics to change the voltage themselves. If your devices can't do that they could burn up. This one should be sufficient for most places.

  • Luggage scale to avoid fees

    Airlines charge large penalties for overweight luggage. Avoid penalties with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck pillow

    A great choice is this one

May

May in Gunma is balmy. Temperatures average in the low 70s F (low 20s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your stuff.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • AirTag to track your luggage

    With airports repeatedly losing bags nowadays, an AirTag can find it anywhere in the world: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

Comfort + Essentials

  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Save money with this

  • Travel adapter

    A plug adapter that supports outlet types A and B. Ensure that you choose the correct type. Most adapters available are just plugs and expect your devices to convert the voltage themselves. If yours can't do that they could burn up. This one should be sufficient for most countries.

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    A great choice is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

June

June for Gunma is a perfect temperature. Temperatures average in the high 70s F (mid 20s C) during the day. It rains regularly.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • AirTag to track your luggage

    With airlines constantly losing luggage nowadays, an AirTag can find it anywhere on earth: AirTag for iPhones.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a bit of protection, an anti-theft backpack protects your belongings.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

Comfort + Essentials

  • Travel pillow

    Our fave is this one

  • Power bank for devices

    A portable power bank, like this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Make sure to get the correct type. Most adapters available are just plugs and expect your electronics to convert the voltage themselves. If your electronics can't do that they could get fried. This one is sufficent for most countries.

  • Luggage scale to avoid fees

    Airlines charge excessive penalties for overweight luggage. Avoid penalties with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

July

July here is hot. Temperatures average in the 80s F (high 20s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your belongings.

  • AirTag to track your luggage

    With airports frequently losing luggage these days, an AirTag can help you locate it anywhere in the world: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

    Airlines charge huge prices for overweight luggage. Save money with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    What we like is this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Take care to find the correct kind. The majority of adapters that you can buy are just plugs and require your electronics to adjust the voltage themselves. If your electronics can't do that they could burn up. This one should work in most locations.

August

August here is extremely hot. Temperatures average in the 80s F (low 30s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • AirTag to track your luggage

    With airports frequently losing luggage recently, an AirTag can locate it anywhere in the world: AirTag for iPhones.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your belongings.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Travel pillow

    A good option is this one

  • Luggage scale to avoid fees

    Airlines charge excessive prices for overweight luggage. Avoid penalties with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Be sure to choose the necessary kind. The vast majority of adapters for sale now are simply plug changers and expect your devices to adjust the voltage themselves. If your electronics can't do that they could get destroyed. This one works in most places.

September

In September, Gunma is warm and somewhat rainy. Temperatures routinely are in the high 70s F (mid 20s C) range. At night, lows are in the 60s F (high 10s C). This is also a rainy time for Gunma, with several of the days of the month having rain.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your stuff.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • AirTag to track your luggage

    With airlines frequently losing things recently, an AirTag can help you find it anywhere in the world: AirTag for iPhones.

Comfort + Essentials

  • Luggage scale to avoid fees

    Airlines charge excessive prices for overweight luggage. Avoid surcharges with this

  • Power bank for devices

    A portable power bank, like this one

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Check that you find the necessary type. A lot of adapters available online are just plugs and expect your electronics to convert the voltage themselves. If yours can't do that they could get fried. This one should work in most locations.

  • Travel neck pillow

    A great choice is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

October

Traveling to Gunma in October, you will notice that it is mild. Expect it to rain about a third of the time. Daytime temperatures are in the high 60s F (low 20s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • AirTag to track your luggage

    With airports repeatedly losing bags recently, an AirTag can help you find it anywhere anywhere: AirTag for iPhones.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your belongings.

Comfort + Essentials

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you find the right type. Many adapters currently sold are just plug changers and require your electronics to change the voltage themselves. If yours can't do that they could burn up. This one should be sufficient for most countries.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

    Airlines charge huge prices for overweight luggage. Save money with this

  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    A top rated pillow is this one

November

If you go to Gunma in November, you will notice that it can be chilly. Daytime temperatures are in the low 60s F (mid 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • AirTag to track your luggage

    With airports repeatedly losing bags recently, an AirTag can help you find it anywhere anywhere: AirTag for iPhones.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    A top rated pillow is this one

  • Luggage scale to avoid fees

    Airlines charge huge penalties for overweight luggage. Save money with this

  • Power bank for devices

    A portable power bank, like this one

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Be sure to find the right kind. Most adapters available are simply plugs and expect your electronics to adjust the voltage themselves. If yours can't do that they could burn up. This one is sufficent for most places.

December

December in Gunma can be brisk. The average overnight temperatures in the area are in the low 30s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Japan has travel concerns that you should consider before going. Click for more information.

  • AirTag to track your luggage

    With airports constantly losing things recently, an AirTag can help you locate it anywhere in the world: AirTag for iPhones.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your belongings.

  • Voice and data SIM card

    A SIM card that works in Gunma. A good global SIM card works in most countries, but check the country list before buying. In some more rural areas you may need a satellite phone. We recommend this satellite phone.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort + Essentials

  • Travel pillow

    An excellent option is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Ensure that you choose the right kind. Most adapters available online are just plug changers and require your devices to adjust the voltage themselves. If yours can't do that they could burn up. This one is sufficent for most areas.

  • Luggage scale to avoid fees

    Airlines charge huge penalties for overweight luggage. Avoid penalties with this

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

What to do in Gunma, Japan

Japan’s Gunma prefecture is located in the Kanto region of the country and is an oft-overlooked gem in the list of tourist attractions in Japan. The prefecture is abundant in natural beauty, historic sites and modern entertainment. Here are some of the top tourist attractions in Gunma:

1. Kusatsu Onsen:

Kusatsu Onsen is one of the most popular hot spring resorts in Japan. The region is known for its healing powers and the baths here are believed to cure various ailments. The town also features traditional inns and resorts, along with various spas, museums and galleries.

2. Ikaho Onsen:

Another famed hot spring resort, Ikaho Onsen, is known for its outdoor street of stairs that leads to the top of the hot springs. The resort town is quaint and charming, hosting various cultural and religious ceremonies throughout the year.

3. Tomioka Silk Mill:

An essential cultural and historic attraction in the region is the Tomioka Silk Mill. It is a UNESCO world heritage site and was established in the late 19th century, during the Meiji period. The mill is remarkable for being the first-ever silk mill to use mechanical power instead of manual labor.

4. Mount Akagi:

Nature enthusiasts will adore Mount Akagi, a dormant volcano that offers breathtaking views of the surrounding valleys and towns. A popular spot for hiking, the mountain also features a popular botanic garden that homes various alpine plants and flowers.

5. Shima Onsen:

An exquisite natural hot spring, Shima Onsen is one of the most picturesque hot springs in the Gunma Prefecture. The resort town features various traditional inns, Japanese-style baths and restaurants serving local delicacies.

6. The Gunma prefectural museum of history and folklore:

For those interested in learning about the history and culture of the region, the Gunma Prefectural Museum of history and folklore is a captivating attraction. The museum honors the rich history of Gunma, with its exhibits showcasing everything from ancient cultural practices to modern-day art.

7. Shibukawa Skyland Park:

The region hosts Shibukawa Skyland Park, an amusement park located in the mountains. Visitors can enjoy thrilling rides, local cuisine, and souvenir shopping. The park is also famed for its encounters of over 200 species of animals, some belonging to the region.

In conclusion, Gunma Prefecture is a beautiful and diverse region, offering something for everyone, from its hot springs and mountains to its historic sites and amusement parks. Any tourist visiting Japan should take the time to explore and discover the beauty of Gunma.

About your travel guide

Hi! I'm Dev. I've traveled all over the world and in my travels, I have made many packing lists. In this series, my team and I have compiled the most useful information, as well as things we couldn't live without, to help you plan your trip.

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