When to go · Helsinki, Finland
Best Time to Visit Helsinki
Helsinki has a four-season climate. The most comfortable months are June, July and August, based on five years of real temperature and rainfall records.
Go now
June, July, August
Comfortable and drier
Shoulder
September, May, October
Fewer crowds, a trade-off
Think twice
January, December
Hottest is July (21°C)
Helsinki weather, month by month
| Month | High | Low | Rain | Feel |
|---|---|---|---|---|
| Jan | -1°C / 30°F | -5°C / 23°F | 92mm | cold, some rain |
| Feb | -1°C / 30°F | -7°C / 19°F | 59mm | cold, mostly dry |
| Mar | 2°C / 36°F | -4°C / 25°F | 45mm | cold, mostly dry |
| Apr | 7°C / 45°F | 0°C / 32°F | 32mm | cold, mostly dry |
| May | 13°C / 55°F | 5°C / 41°F | 68mm | cool, some rain |
| JunBEST | 20°C / 68°F | 12°C / 54°F | 40mm | mild, mostly dry |
| JulBEST | 21°C / 70°F | 14°C / 57°F | 61mm | mild, some rain |
| AugBEST | 20°C / 68°F | 14°C / 57°F | 117mm | mild, some rain |
| Sep | 15°C / 59°F | 9°C / 48°F | 52mm | cool, mostly dry |
| Oct | 9°C / 48°F | 5°C / 41°F | 89mm | cold, some rain |
| Nov | 4°C / 39°F | 0°C / 32°F | 65mm | cold, some rain |
| Dec | -2°C / 28°F | -6°C / 21°F | 68mm | cold, some rain |
Averages from Open-Meteo ERA5 climate reanalysis, 2019 to 2023. Highs and lows are daily averages for each month; rain is the monthly total. Tap a month for a detailed guide.
Want the timing decided for you? A Local Friend in Helsinki plans around the seasons for you.