Kotka Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Kotka.
Climate overview of Kotka
Temperatures in Kotka, Southern Finland, Finland, vary greatly throughout the year. July is the hottest month at 22°C (72°F), while February is the coldest at -2°C (28°F).
Kotka sees a moderate amount of rain/snowfall, totalling around 728 mm (29 in) per year. It experiences pleasant summers and very cold winters, creating some seasonal variation.
Kotka Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kotka - and find the best time to visit.
Monthly Temperature in Kotka
The climate in Kotka is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a pleasant 22°C (72°F) in July, the warmest time of the year, to a very cold -2°C (28°F) during cooler months like February.
At night, you can expect temperatures ranging from 15°C (59°F) in July to around -8°C (18°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Kotka
Generally, Kotka receives mid-range precipitation levels, with 728 mm (29 in) annually. While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 75 mm (3 in) of precipitation, spread over 16 rainy days.
In contrast, the driest month April experiences a drier climate, with about 41 mm (1.6 in) of rainfall spread across 13 rainy days. For more details, please visit our Kotka Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Kotka
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Fewest rainy days: April, May and June
- Seasonal pattern: Pleasant summers and very cold winters
- Coldest conditions: February, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Kotka
What is the best time to visit Kotka?
July and August typically offer the most optimal weather in Kotka. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Kotka has pleasant summers and very cold winters.
What temperatures can I expect in Kotka?
Daytime highs range from -2°C (28°F) in February to 22°C (72°F) in July. Nighttime lows range from -8°C (18°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Kotka get?
Annual rainfall is around 728 mm (29 in). October is the wettest month with 75 mm (3 in), while April is the driest with 41 mm (1.6 in).
Kotka 3-Day Forecast
Kotka 3-Day Forecast
Kotka on the map
Kotka is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
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Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Air Guitar World Championship Finland
This is something you might want to add to your bucket list. August is also the perfect time to visit Finland. The days are long and the temperature is amazing.
Sleeping in a glass iglo in Finland
Sleeping in a glass igloo with the Northern Lights shining above you. The most famous place is in the Iglo village in Kakslattaunen. The idea is amazing and definitely something to add to your bucket list.
See the northern lights
The northern lights, polar light or Aarora Borealis is a true spectacle of nature! Green, sometimes purple, red and yellow streaks of light colors the dark skies.