Ertholmene, Denmark: What to pack, what to wear, and when to go [2024]

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Ready to pack for Ertholmene, Denmark? If you're planning to go to Ertholmene, this is some important information about when to go, what to wear, and what to pack.

Contents

When to go to Ertholmene, Denmark

Based on the climate and weather in Ertholmene, Denmark, the best time to go is August. See below for details.

What to wear/what to pack for Ertholmene, Denmark

Already know when you're traveling?

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

What to wear/what to pack for Ertholmene, Denmark by month

January

In January, Ertholmene is freezing and somewhat rainy. Temperatures routinely are in the 30s F (single digits C) range. At night, lows are in the 30s F (single digits C). This is also a rainy time for Ertholmene, with several of the days of the month having rain. In January, humidity reaches as high as 100%. Additionally, it is very windy.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

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

  • AirTag to track your luggage

    With airlines constantly losing luggage 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.

Comfort + Essentials

  • Power bank for devices

    A portable power bank, like this one

  • Travel voltage adapter

    A plug adapter that supports outlet types C, E, F and K. Be sure to pick the necessary type. Most adapters available are just plugs and require your electronics to adjust the voltage themselves. If yours can't do that they could get destroyed. This one is sufficent for most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

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

  • Travel neck pillow

    Our fave is this one

February

Traveling to Ertholmene in February, you will notice that it is freezing. Expect it to rain regularly and snow 5-10 days this month. Daytime temperatures are in the 30s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airports constantly losing bags recently, an AirTag can help you locate it anywhere on earth: AirTag for iPhones.

  • 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.

Comfort + Essentials

  • Luggage scale to avoid fees

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

  • Voltage step down adapter

    A plug adapter that supports outlet types C, E, F and K. Check that you pick the right type. A lot of adapters that you can buy are simply plug changers and expect your devices to change the voltage themselves. If your electronics can't do that they could get fried. This one should be sufficient for most places.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    A great choice is this one

  • Power bank for devices

    A portable power bank, like this one

March

In March, Ertholmene is cold and somewhat rainy. Temperatures routinely are in the high 30s F (single digits C) range. At night, lows are in the 30s F (single digits C). This is also a rainy time for Ertholmene, with several of the days of the month having rain. In March, humidity reaches as high as 90%. Additionally, it is very windy.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airlines frequently losing things recently, an AirTag can locate it anywhere in the world: 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 peace of mind, an anti-theft backpack protects your stuff.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Voltage adapter

    A plug adapter that supports outlet types C, E, F and K. Be careful to pick the necessary type. Many adapters available online are just plugs and expect your electronics to change the voltage themselves. If yours can't do that they could get destroyed. This one is sufficent for most areas.

  • 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 good option is this one

April

April in Ertholmene is cold and somewhat rainy. The average overnight temperatures in the area are in the high 30s F (single digits C). It tends to rain regularly. But the colder weather doesn't bring low humidity, which is in the 80% to 90% range on average.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Denmark 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.

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

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

  • Anti-theft backpack

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

Comfort + Essentials

  • Travel neck pillow

    Our favorite is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

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

  • Power bank for devices

    A portable power bank, like this one

  • Travel adapter

    A plug adapter that supports outlet types C, E, F and K. Be careful to find the right type. Most adapters for sale now are just plugs and expect your electronics to convert the voltage themselves. If yours can't do that they could burn up. This one works in most locations.

May

In May, Ertholmene is brisk and somewhat rainy. Temperatures routinely are in the low 50s F (single digits C) range. At night, lows are in the 40s F (single digits C). This is also a rainy time for Ertholmene, with several of the days of the month having rain. In May, humidity reaches as high as 90%.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • AirTag to track your luggage

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

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

  • 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

  • Plug adapter

    A plug adapter that supports outlet types C, E, F and K. Ensure that you get the correct type. Many adapters currently sold are simply plugs and expect your devices to adjust the voltage themselves. If your electronics can't do that they could burn up. This one is sufficent for most areas.

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

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

  • Travel pillow

    A great choice is this one

June

If you vacation in Ertholmene during June, you may find that it is chilly and somewhat rainy. Temperatures tend to hover around the high 50s F (mid 10s C) during the day, while at night they can dip into the 50s F (low 10s C). Humidity is generally between 80 and 90% during the day. In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • AirTag to track your luggage

    With airports repeatedly losing bags recently, 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.

  • 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 Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    Our fave is this one

  • Luggage scale to avoid fees

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

  • Power bank for devices

    A portable power bank, like this one

  • Travel adapter

    A plug adapter that supports outlet types C, E, F and K. Ensure that you get the correct type. Many adapters currently sold are simply plugs and expect your devices to convert the voltage themselves. If your electronics can't do that they could get fried. This one should be appropriate for most places.

July

July in this region is crisp and somewhat rainy. Temperatures average in the 60s F (high 10s C) during the day. It rains about a third of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • AirTag to track your luggage

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • 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

  • Luggage scale to avoid fees

    Airlines charge huge penalties for overweight luggage. Avoid surcharges 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

  • Travel pillow

    A versatile choice is this one

  • Plug adapter

    A plug adapter that supports outlet types C, E, F and K. Ensure that you pick the correct kind. The majority of adapters currently being sold are just plug changers and require your devices to convert the voltage themselves. If your electronics can't do that they could get fried. This one works in most places.

August

August is cool and somewhat rainy. Temperatures average in the 60s F (high 10s C) during the day. It rains regularly.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

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

  • AirTag to track your luggage

    With airlines frequently losing bags recently, an AirTag can help you locate it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

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

Comfort + Essentials

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Voltage adapter

    A plug adapter that supports outlet types C, E, F and K. Ensure that you find the necessary type. Most adapters available are simply plug changers and require your devices to change the voltage themselves. If yours can't do that they could burn up. This one is sufficent for most places.

  • Luggage scale to avoid fees

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

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck pillow

    A good option is this one

September

September for Ertholmene is cool and somewhat rainy. Temperatures average in the high 50s 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

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

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

  • AirTag to track your luggage

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

  • Anti-theft backpack

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

Comfort + Essentials

  • Travel neck support pillow

    A good option 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 C, E, F and K. It's important that you choose the necessary type. The vast majority of adapters for sale now are simply plug changers and require your devices to change the voltage themselves. If your devices can't do that they could burn up. This one works in most locations.

  • Luggage scale to avoid fees

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

  • Power bank for devices

    A portable power bank, like this one

October

Traveling to Ertholmene in October, you will notice that it can be brisk and somewhat rainy. 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

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • 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.

  • AirTag to track your luggage

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

Comfort + Essentials

  • Luggage scale to avoid fees

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

  • Travel neck pillow

    An excellent option is this one

  • Voltage adapter

    A plug adapter that supports outlet types C, E, F and K. It's important that you get the right kind. The majority of adapters available are just plugs and expect your devices to convert the voltage themselves. If yours can't do that they could get fried. This one should work in most countries.

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

November

November here is cold and very rainy. Temperatures average in the 40s F (single digits C) during the day. It rains about half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

    Given current world events, Denmark 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.

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airlines always losing things recently, an AirTag can help you locate it anywhere anywhere: AirTag for iPhones.

Comfort + Essentials

  • Travel voltage adapter

    A plug adapter that supports outlet types C, E, F and K. Check that you choose the necessary type. Many adapters available are just plugs and require your devices to adjust the voltage themselves. If your electronics can't do that they could burn up. This one should work in most areas.

  • Travel pillow

    What we like 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

  • Luggage scale to avoid fees

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

December

December in Ertholmene is cold and somewhat rainy. The average overnight temperatures in the area are in the 30s F (single digits C). It tends to rain about half of the time. It also snows regularly. But the colder weather doesn't bring low humidity, which is in the 90% to 100% range on average.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security

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

  • Voice and data SIM card

    A SIM card that works in Ertholmene. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

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

  • AirTag to track your luggage

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

  • Anti-theft backpack

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

Comfort + Essentials

  • Travel neck pillow

    A versatile choice is this one

  • Luggage scale to avoid fees

    Airlines charge huge amounts for overweight luggage. Avoid surcharges with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel voltage adapter

    A plug adapter that supports outlet types C, E, F and K. Make sure to pick the right kind. A lot of adapters currently sold are just plugs and expect your devices to convert the voltage themselves. If yours can't do that they could get fried. This one should work in most locations.

  • Power bank for devices

    A portable power bank, like this one

What to do in Ertholmene, Denmark

Ertholmene, also known as Christiansø, is a small archipelago located in the Baltic Sea about 18 kilometers northeast of Bornholm, Denmark. With a rich history and stunning natural surroundings, Ertholmene has become one of the top tourist destinations in Denmark. Here are some of the top attractions that you should explore when visiting.

The Fortifications

Ertholmene’s unique location in the Baltic Sea made it an important strategic point in the region, thus the fortifications played a significant role in Danish military history. Visiting the impressive fortifications, including Middelgrundsfortet, Krudttårnet, and Tårnet, is a must for any history buff.

The Churches

There are two churches on Ertholmene. The Church of Christiansø has a rich history, dating back to 1684, and was built to serve the civilian population of the island. Meanwhile, the Church of Frederiksø was built in 1755 to serve the military garrison. Both churches are beautiful examples of Danish architecture and are worth a visit.

The Lighthouse

The Christiansø Lighthouse was built in 1805 and is still in operation today. The lighthouse is located at the highest point of the island and provides a stunning view of the archipelago. Visitors can climb to the top of the lighthouse and enjoy the panoramic view of the sea and surrounding islands.

The Naturrum

The Naturrum is a museum dedicated to the flora and fauna of the island. The museum includes interactive exhibits showcasing the island’s unique ecosystem and history. Visitors can learn about the vegetation, animals, and birds that call Ertholmene home.

The Harbor

The harbor of Ertholmene is a beautiful spot to relax and enjoy the island’s atmosphere. The harbor is the center of the island’s activity, and visitors can watch the boats coming and going, or enjoy a meal at one of the harbor’s restaurants.

In conclusion, Ertholmene is a unique and stunning destination that is definitely worth a visit. Whether you’re interested in history, nature, or simply want to relax in a beautiful setting, Ertholmene has something for everyone. So pack your bags and head out to Ertholmene to explore the island’s treasures.

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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