The weather in Hanko in December is very cold with temperatures between 0°C and 3°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Hanko. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Hanko can expect a few days of snow in December.
Our weather forecast can give you a great sense of what weather to expect in Hanko in December 2025.
If you’re planning to visit Hanko in the near future, we highly recommend that you review the 14 day weather forecast for Hanko before you arrive.
Temperatures
3° / 0°
Rainy Days
11
Snowy Days
2
Dry Days
18
Rainfall
73
mm
Sun Hours
2.0
Hrs
