Which is the hottest month in Kos?

The hottest time of year in Kos Town, Kos is normally July. Expect maximum daytime temperatures to reach 32°C with high heat and humidity.

Best time to visit Kos

Q: When is the best time to visit Kos?

The best time to visit Kos (Kos Town) is May and September based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Kos?

In terms of rainfall, January is usually the wettest month in Kos Town, Kos with 169mm on average. There are normally 14 days in January with some rain.

Q: When is it sunniest in Kos?

The sunniest time of year in Kos Town, Kos is normally July with bright sunshine on average for 97% of daylight hours; that's 14 hours of sunshine per day.

Q: When is the sea warmest in Kos?

The sea is usually at its warmest in Kos Town, Kos in August when the water temperature reaches 25°C.

Find the best time to visit Kos and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Kos by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Destination

Top Kos destinations

Below are the temperatures expected today at popular countries, regions and places in Kos. Select a destination to compare today's forecast with average weather conditions.

All Kos destinations

When is the best time to visit Kos?

The best time to visit Kos (Kos Town) is May and September based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

1
Jan
1.5
Feb
1.5
Mar
4
Apr
5
May
4.5
Jun
3.5
Jul
3.5
Aug
5
Sep
4
Oct
2.5
Nov
1
Dec

Change criteria

Max Day Temperature (°C)

14
Jan
14
Feb
16
Mar
20
Apr
24
May
29
Jun
32
Jul
32
Aug
28
Sep
24
Oct
19
Nov
16
Dec

Hours of Sunshine (daily)

5
Jan
6
Feb
7
Mar
9
Apr
11
May
13
Jun
14
Jul
13
Aug
11
Sep
8
Oct
6
Nov
5
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Kos (Kos Town) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about Kos

Explore our complete guide to Kos with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Kos.

Essential travel guide
Travel guidance
Travel health
Travel features
Top travel deals
FAQs

Kos travel guide - essential info

Below is a beginner's guide to Kos with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

Kos - quick facts
Flight time^✝	4 hours
Time difference	UK +2 hours
Language(s)	Greek
Currency	Euro
Electricity	C + F plug (230V)
Driving side	Right

Why visit Kos?

Considering a holiday to the Kos? Here are some of the very good reasons it makes such a wonderful holiday destination be it for beaches or culture to ensure you get the most out of your 2025/2026 escape.

Beaches
Culture
Nature
Nightlife

Kos tourist information

Kos Island Tourism

✝ = Typical flight time from the UK.

Travelling to Kos?
Holidays Hotels Flights Ocean cruises eSIMs Travel insurance

Kos travel guidance

Check the latest travel guidance and advice on visiting Kos from official government sources (in english) from around the world including entry requirements and travel restrictions.

UK traveller advice for Kos - UK FCDO
Irish traveller advice for Kos - Department of Foreign Affairs, Ireland
Safe travel advisories for Kos - Ministry of Foreign Affairs, New Zealand
Smarter traveller advice for Kos - Department of Foreign Affairs, Australia

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Kos.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

Kos travel health

Find out more about staying safe when travelling to Kos with the latest guidance on required vaccinations and recommended medication to take with you.

Vaccines & medicines for Kos - CDC
Health & vaccinations for Kos - TravelHealthPro, NaTHNac
How to stay safe & healthy in Kos - Fit for Travel, Public Health Scotland

Check out the general travel tips for staying safe and healthy in Kos, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

Kos travel features

Do you want to learn more about Kos? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Kos.

Kos FAQs

Read our frequently asked questions about travelling to Kos including the current entry restrictions, driving side, electrical plugs used and much more.

Which month has the most rain in Kos?

In terms of rainfall, January is usually the wettest month in Kos Town, Kos with 0mm on average. There are normally no days in January with some rain.

When is it sunniest in Kos?

The sunniest time of year in Kos Town, Kos is normally January with bright sunshine on average for 0% of daylight hours; that's 0 hours of sunshine per day.

When is the sea warmest in Kos?

The sea is usually at its warmest in Kos Town, Kos in January when the water temperature reaches 0°C.

What is the flight time to Kos from the UK?

The flight time to Kos from the UK is typically 4 hours.

What is the time difference between Kos and the UK?

The time difference between Kos and the UK is UK time+2 hours.

What is the main language spoken in Kos?

The main language spoken in Kos is Greek.

Learn a language for Kos with Rosetta Stone^*.

What is the currency in Kos?

The currency in Kos is the Euro (EUR).

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Which plugs are used in Kos?

Kos uses electrical plug type C + F (230 Volts).

Which side of the road do they drive on in Kos?

They drive on the right side of the road in Kos.

Find out more about driving in Greece with RAC^*, International Drivers Association^* and Halfords^*.

Kos travel deals

Holidays to Kos

Check out the latest deals, discount codes and special offers on holidays to Kos in 2025/2026. Pay low deposits and save with last minute holiday availability and free kids places.