Best Time to Visit
🇫🇮 Helsinki, Finland · Europe
Based on 30-year climate data (1991-2020) from Open-Meteo
Jan
-2°
-6°
Poor
Feb
-3°
-7°
Poor
Mar
1°
-5°
Fair
Apr
7°
0°
Good
May
13°
6°
Great
Jun
17°
11°
Great
Jul
21°
14°
Great
Aug
20°
14°
Great
Sep
15°
10°
Great
Oct
8°
4°
Fair
Nov
3°
0°
Poor
Dec
0°
-3°
Poor
| Month | High | Low | Rain Days | Sunshine | Humidity | UV | Rating | Details |
|---|---|---|---|---|---|---|---|---|
| January | -2°C | -6°C | 11 | 2h | 65% | 1 | Poor | View |
| February | -3°C | -7°C | 9 | 4h | 65% | 1 | Poor | View |
| March | 1°C | -5°C | 9 | 7h | 65% | 6 | Fair | View |
| April | 7°C | 0°C | 9 | 10h | 65% | 6 | Good | View |
| MayRecommended | 13°C | 6°C | 9 | 13h | 65% | 10 | Great | View |
| JuneRecommended | 17°C | 11°C | 12 | 13h | 65% | 10 | Great | View |
| JulyRecommended | 21°C | 14°C | 12 | 14h | 65% | 10 | Great | View |
| AugustRecommended | 20°C | 14°C | 12 | 12h | 65% | 10 | Great | View |
| SeptemberRecommended | 15°C | 10°C | 10 | 8h | 65% | 6 | Great | View |
| October | 8°C | 4°C | 12 | 5h | 65% | 6 | Fair | View |
| November | 3°C | 0°C | 12 | 2h | 65% | 1 | Poor | View |
| December | 0°C | -3°C | 12 | 1h | 65% | 1 | Poor | View |
Data source: Open-Meteo ERA5 reanalysis archive, 30-year historical normals (1991-2020). Temperatures in Celsius. Sunshine hours are daily averages.
Avg: 7°C high, 0°C low
Cool to cold at 7°C (45°F), warm clothing essential. Occasional showers possible. Nights cool to 0°C (32°F).
Avg: 19°C high, 13°C low
Mild conditions at 19°C (66°F), layers recommended. Rain is frequent, waterproof gear recommended. Nights cool to 13°C (55°F).
Avg: 9°C high, 5°C low
Cool to cold at 9°C (48°F), warm clothing essential. Rain is frequent, waterproof gear recommended. Nights cool to 5°C (41°F).
Avg: -2°C high, -5°C low
Cool to cold at -2°C (28°F), warm clothing essential. Rain is frequent, waterproof gear recommended. Nights cool to -5°C (23°F).
The least favorable time to visit Helsinki is January and November. During this period, you can expect freezing temperatures, very limited sunshine.
January
Challenges: freezing temperatures, very limited sunshine
November
Challenges: freezing temperatures, frequent rain, very limited sunshine
December
Challenges: freezing temperatures, frequent rain, very limited sunshine
Note: visiting during off-peak months often means lower prices, fewer crowds, and a more authentic experience.
Packing recommendations for visiting Helsinki during the best travel months (June, July, August), when temperatures range from 13°C to 19°C:
Helsinki has a continental climate (Koppen classification: Dfb). The warmest month is July with highs of 21°C, while the coldest month is February at just -3°C. Annual rainfall averages 673mm across approximately 129 rain days.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | -2 | -3 | 1 | 7 | 13 | 17 | 21 | 20 | 15 | 8 | 3 | 0 |
| Low °C | -6 | -7 | -5 | 0 | 6 | 11 | 14 | 14 | 10 | 4 | 0 | -3 |
| Rain Days | 11 | 9 | 9 | 9 | 9 | 12 | 12 | 12 | 10 | 12 | 12 | 12 |
| Rain mm | 50 | 42 | 37 | 37 | 44 | 71 | 75 | 76 | 58 | 63 | 63 | 57 |
| Sun h/day | 2 | 4 | 7 | 10 | 13 | 13 | 14 | 12 | 8 | 5 | 2 | 1 |
| Humidity % | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| UV Index | 1 | 1 | 6 | 6 | 10 | 10 | 10 | 10 | 6 | 6 | 1 | 1 |
Considering alternatives to Helsinki? Compare the best travel months for nearby cities:
For a complete day-by-day weather breakdown including packing lists, activities, and local events, explore each month individually:
January
February
March
April
May
June
July
August
September
October
November
December
Explore weather guides for other popular destinations: