Hanko Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Hanko.
Climate overview of Hanko
The climate in Hanko, Southern Finland, Finland, is marked by large temperature swings across the seasons, ranging from 20°C (68°F) in August to 0°C (32°F) in February.
Annual rain/snowfall is moderate at around 739 mm (29 in), with October being the wettest month. The city also has a distinct dry season from April to May, with pleasant summers and very cold winters.
Hanko Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hanko - and find the best time to visit.
Monthly Temperature in Hanko
In Hanko, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a pleasant 20°C (68°F) in August. In February, the coolest month of the year, temperatures drop to a very cold 0°C (32°F).
At night, temperatures range from around 16°C (61°F) in August to -5°C (23°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Hanko
On average, Hanko receives a reasonable amount of rain/snowfall, with an annual precipitation of 739 mm (29 in). Hanko can be quite wet during October, receiving approximately 91 mm (3.6 in) of precipitation over 16 rainy days.
In contrast, during the driest month (May), you will experience much drier conditions, with 36 mm (1.4 in) of precipitation spread across 10 rainy days. For more details, please visit our Hanko 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 Hanko
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August
- Warmest weather: July and August
- Fewest rainy days: April, May and June
- Seasonal pattern: A distinct dry season from April to May, with pleasant summers and very cold winters
- Coldest conditions: February, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Hanko
What is the best time to visit Hanko?
August typically offers the most optimal weather in Hanko. In contrast, January, February, March, April, May, November and December tend to have less optimal conditions. Hanko has a distinct dry season from April to May, with pleasant summers and very cold winters.
What temperatures can I expect in Hanko?
Daytime highs range from 0°C (32°F) in February to 20°C (68°F) in August. Nighttime lows range from -5°C (23°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Hanko get?
Annual rainfall is around 739 mm (29 in). October is the wettest month with 91 mm (3.6 in), while May is the driest with 36 mm (1.4 in).
Hanko 3-Day Forecast
Hanko 3-Day Forecast
Hanko on the map
Hanko is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Helsinki
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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.