Seto, Japan: What to pack, what to wear, and when to go [2023]

Empty Lighthouse is a reader-supported site. This article may contain affiliate links to Amazon and other sites. We earn a commission on purchases made through these links.

Traveling to Seto, Japan? If you're planning to go to Seto, here is some important information about when to go, what to wear, and what to pack.

Contents

When to go to Seto, Japan

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

What to wear/what to pack for Seto, Japan

Already know when you're traveling?

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

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

January

January in Seto can be brisk, somewhat snowy, somewhat rainy and somewhat hazy. The average overnight temperatures in the area are in the low 30s F (single digits C). It tends to rain about half of the time. It also snows about a third of the time. But the colder weather doesn't bring low humidity, which is in the 50% to 60% range on average.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in Seto. 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

  • Folding travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

  • Travel adapter

    A plug adapter that supports outlet types A and B. Ensure that you choose the correct kind. Many adapters currently being sold are just plugs and expect your devices to convert the voltage themselves. If yours can't do that they could burn up. This one is sufficent for most areas.

  • Travel pillow

    What we like is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

February

If you vacation in Seto during February, you are likely to see that it is cold, somewhat snowy, somewhat rainy and somewhat hazy. Temperatures tend to hover around the 40s F (single digits C) during the day, while at night they can dip into the low 30s F (single digits C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain about half of the time and snow a bit less than half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • 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 stuff.

  • Voice and data SIM card

    A SIM card that works in Seto. 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

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Super portable foldable travel stroller

    This stroller weighs almost 10 pounds and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    What we like is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Be careful to pick the correct kind. The vast majority of adapters available are simply plug changers and require your electronics to change the voltage themselves. If yours can't do that they could get fried. This one works in most locations.

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

March

March is brisk, very rainy and somewhat hazy. Temperatures average in the 50s F (low 10s C) during the day. It rains about two thirds of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • 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 things.

  • Voice and data SIM card

    A SIM card that works in Seto. 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 adapter

    A plug adapter that supports outlet types A and B. It's important that you get the correct type. The majority of adapters on sale are just plugs and require your electronics to convert the voltage themselves. If yours can't do that they could get fried. This one should be sufficient for most locations.

  • Power bank for devices

    A portable power bank, like this one

  • Folding travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    A great choice is this one

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

April

April in Seto is crisp, very rainy and somewhat hazy. The rain can amount to several inches/centimeters. During this time, temperatures average in the 60s F (high 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in Seto. 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

  • Super portable foldable travel stroller

    This stroller weighs just 10 pounds and folds to the size of a big book.

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Take care to choose the right type. The majority of adapters available online are just plug changers and expect your electronics to change the voltage themselves. If your devices can't do that they could get destroyed. This one works in most areas.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    A versatile choice is this one

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

May

If you visit Seto during May, you will probably see that it is warm, very rainy and somewhat hazy. Temperatures tend to hover around the low 70s F (low 20s C) during the day, while at night they can dip into the 50s F (low 10s C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain about two thirds of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Seto. 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.

  • Anti-theft backpack

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

Comfort + Essentials

  • Travel pillow

    Our fave is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Ensure that you pick the right kind. The majority of adapters for sale now are just plug changers and require your electronics to adjust the voltage themselves. If your devices can't do that they could get fried. This one should work in most areas.

  • Power bank for devices

    A portable power bank, like this one

  • Easy folding travel stroller

    This stroller weighs just 10 lbs and folds to the size of a big book.

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

June

June in Seto is warm, very rainy and somewhat hazy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 70s F (low 20s C) to high 70s F (mid 20s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Seto. 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 peace of mind, an anti-theft backpack protects your belongings.

  • Money/passport pouch

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

Comfort + Essentials

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Be careful to choose the correct type. The vast majority of adapters currently available are simply plugs and require your electronics to change the voltage themselves. If your electronics can't do that they could get destroyed. This one works in most countries.

  • Ultraportable travel stroller

    This stroller weighs just 10 pounds and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    A top rated pillow is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

July

Traveling to Seto in July, you will notice that it can be sweltering, extremely rainy and somewhat hazy. Expect it to rain most days. Daytime temperatures are in the 80s F (low 30s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Seto. 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.

  • Anti-theft backpack

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

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Check that you find the right kind. The vast majority of adapters currently available are simply plug changers and require your electronics to convert the voltage themselves. If your devices can't do that they could burn up. This one is sufficent for most countries.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    An excellent option is this one

  • Ultraportable travel stroller

    This stroller weighs almost 10 pounds and folds to the size of a big book.

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

August

August in Seto is extremely hot, very rainy and very hazy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 80s F (high 20s C) to high 80s F (low 30s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Voice and data SIM card

    A SIM card that works in Seto. 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.

  • Anti-theft backpack

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

Comfort + Essentials

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the correct type. Many adapters currently sold are simply plug changers and expect your electronics to change the voltage themselves. If your electronics can't do that they could burn up. This one should work in most locations.

  • Power bank for devices

    A portable power bank, like this one

  • Ultraportable travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    Our favorite is this one

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

September

In September, Seto is hot, very rainy and somewhat hazy. Temperatures routinely are in the low 80s F (high 20s C) range. At night, lows are in the high 60s F (low 20s C). This is also a rainy time for Seto, with more than half of the days of the month having rain. In September, humidity reaches as high as 70%.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Money/passport pouch

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

  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in Seto. 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 neck support pillow

    A versatile choice is this one

  • Easy folding travel stroller

    This stroller is only 10 pounds and folds to the size of a big book.

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Be sure to pick the correct type. The vast majority of adapters available online are simply plugs and require your devices to change the voltage themselves. If your devices can't do that they could burn up. This one should be appropriate for most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

October

October in Seto is balmy, very rainy and very hazy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 60s F (high 10s C) to low 70s F (low 20s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in Seto. 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

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    An excellent option is this one

  • Ultraportable travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

  • Travel adapter

    A plug adapter that supports outlet types A and B. Be sure to find the right type. The vast majority of adapters available are simply plug changers and require your electronics to convert the voltage themselves. If yours can't do that they could get destroyed. This one is sufficent for most places.

  • Power bank for devices

    A portable power bank, like this one

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

November

November can be chilly, somewhat rainy and very hazy. Temperatures average in the low 60s F (mid 10s C) during the day. It rains about half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your things.

  • 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 Seto. 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

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    Our favorite is this one

  • Ultraportable travel stroller

    This stroller weighs almost 10 pounds and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Take care to choose the correct kind. A lot of adapters available online are simply plug changers and expect your electronics to convert the voltage themselves. If your devices can't do that they could burn up. This one should be sufficient for most countries.

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

December

If you go to Seto in December, you will notice that it can be brisk, somewhat rainy and very hazy. Expect it to rain about half of the time. Daytime temperatures are in the low 50s F (low 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in Seto. 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

  • Plug adapter

    A plug adapter that supports outlet types A and B. Take care to get the necessary kind. The majority of adapters currently being sold are just plugs and require your devices to change the voltage themselves. If your electronics 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

  • Ultralightweight travel stroller

    This stroller is only 10 pounds and folds to the size of a big book.

  • Travel neck support pillow

    What we like is this one

  • Power bank for devices

    A portable power bank, like this one

If you check out a temple, such as Kamagami Shrine, wear:

If you see the Aichi Prefectural Ceramic Museum, wear museum-appropriate clothing and take:

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.

Check out our guides for these other locations: Langley, Washington, United States of America, Rio de Janeiro, Rio de Janeiro, Brazil, Centennial, Colorado, United States of America, Patna, India, Wörgl, Austria, Wieliczka, Poland, Pangkalan Bun, Indonesia, Guelph, Ontario, Canada, Rockville Centre, New York, United States of America, Callao, Peru, and Lindås, Norway.