Average monthly rainy days in Helsinki
- Most rainy days are in January, February, March, July, August, September, October, November and December.
- On average, January is the most rainy.
- On average, May has the least rainy days.
- The average annual amount of rainy days is: 206.0 days
More climate information
Weather and Climate offers all the information you need to know about the climate in Helsinki.
We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in Finland and climate and forecast data for all other countries in the world.