Kálymnos Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Kálymnos.
Climate overview of Kálymnos
Kálymnos, Dodecanese, Greece, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in August, while winters cool to 16°C (61°F) in February.
Annual rainfall is moderate at around 666 mm (26 in), with December being the wettest month. The city also has a distinct dry season from April to September, with warm summers and mild winters. The sunniest month is July, with 11.0 hours of sunshine per day on average.
Kálymnos Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kálymnos - and find the best time to visit.
Monthly Temperature in Kálymnos
Depending on the time of the year, temperatures range from comfortable to moderate in Kálymnos. Average daytime temperatures reach a comfortable 28°C (82°F) in August. In February, the coolest month of the year, temperatures drop to a moderate 16°C (61°F).
At night, temperatures range from around 24°C (75°F) in August to 12°C (54°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Kálymnos
Generally, Kálymnos has a moderate amount of precipitation, averaging 666 mm (26 in) of rainfall annually. Kálymnos can be quite wet during December, receiving approximately 146 mm (5.7 in) of precipitation over 14 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 0.1 mm (0 in) of precipitation spread across 5 rainy days. For more details, please visit our Kálymnos Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Kálymnos
Kálymnos can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Kálymnos
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September, October and November
- Warmest weather: July and August
- Most sunshine: June, July and August
- Fewest rainy days: May, June, July and September
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from April to September, with warm summers and mild winters
Frequently asked questions about the climate in Kálymnos
What is the best time to visit Kálymnos?
May, June, July, August, September, October and November typically offer the most optimal weather in Kálymnos. In contrast, January, February and December tend to have less optimal conditions. Kálymnos has a distinct dry season from April to September, with warm summers and mild winters.
What temperatures can I expect in Kálymnos?
Daytime highs range from 16°C (61°F) in February to 28°C (82°F) in August. Nighttime lows range from 12°C (54°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Kálymnos get?
Annual rainfall is around 666 mm (26 in). December is the wettest month with 146 mm (5.7 in), while July is the driest with 0.1 mm (0 in).
How sunny is Kálymnos?
Kálymnos receives around 2,775 hours of sunshine per year. July is the sunniest month with 330 hours, while December is the cloudiest with just 135 hours. Overall, Kálymnos enjoys abundant sunshine.
Kálymnos 3-Day Forecast
Kálymnos 3-Day Forecast
Kálymnos on the map
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