Year-round weather and climate in Helsinki, Finland
Average temperatures in Helsinki run from an average low of -5°C23°F in February up to an average high of 21°C70°F in July. May is the driest month at 9 rainy days; January the wettest at 16. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 659K
- Currency
- EUR
- Language
- Finnish / Swedish
- Time zone
- Helsinki
Best time to visit
For the warmest temperatures and best chance of outdoor activities, plan your trip around June, July, and August.
Rain character
Moderate Showers: Rainfall is standard and manageable. A compact travel umbrella or light rain jacket will easily get you through any wet days.
Day-to-night swing
Evening Chill: Temperatures drop by a noticeable 8°C14°F when the sun goes down. A light sweater or jacket is usually all you need for evening plans.
Seasonality Profile
Deep Continental: Dominated by long, freezing winters. Summers are brief but pleasantly mild.
Evening vibe
Cozy Indoor Culture: Evenings are generally crisp, damp, or sweltering. Nightlife centers around indoor venues.
Sightseeing stamina
All-Day Strolling: Weather is generally forgiving for long walking days. Comfortable sneakers are your most important packing item.
Average temperatures, sunshine, and rainfall
Average monthly weather in Helsinki, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. May is typically driest at 9 days (51mm); Jan the wettest at 16 days (76mm).
| Month | Average high | Average low | Sunshine hours | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 0°C / 31°F | -5°C / 23°F | 2h | 16 | 76mm |
| Feb | 0°C / 31°F | -5°C / 22°F | 3h | 12 | 71mm |
| Mar | 2°C / 36°F | -4°C / 26°F | 7h | 10 | 49mm |
| Apr | 7°C / 45°F | 0°C / 32°F | 10h | 10 | 46mm |
| May | 13°C / 56°F | 6°C / 42°F | 13h | 9 | 51mm |
| Jun | 20°C / 68°F | 12°C / 54°F | 16h | 9 | 50mm |
| Jul | 21°C / 69°F | 14°C / 58°F | 14h | 14 | 80mm |
| Aug | 20°C / 68°F | 14°C / 57°F | 11h | 14 | 97mm |
| Sep | 16°C / 60°F | 10°C / 50°F | 9h | 10 | 70mm |
| Oct | 10°C / 50°F | 6°C / 42°F | 5h | 14 | 86mm |
| Nov | 5°C / 40°F | 1°C / 34°F | 2h | 14 | 78mm |
| Dec | 0°C / 32°F | -4°C / 25°F | 1h | 14 | 70mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Helsinki?
The most sunshine in Helsinki comes around June, averaging 16 hours a month. If you're heading there then, pack your sunglasses and sunscreen.
What clothes should I pack for Helsinki?
Your packing list depends entirely on when you travel. Temperatures in Helsinki swing from an average low of -5°C23°F in February up to 21°C70°F in July. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Helsinki?
Helsinki gets rain on about 146 days out of the year. The wettest month is January. If you're traveling during the rainy season, you'll definitely want to pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Helsinki with Packola.
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