What to pack for Helsinki in August
- t-shirts and light layers
- a light jacket for evenings
- a compact umbrella or rain shell — rain is frequent
Humidity averages 79%; max daily wind around 21 km/h.
How August compares
Best months in Helsinki: June. See the full best time to visit Helsinki guide.
Helsinki in August: the details
In August, Helsinki sees average daytime highs of 20°C (68°F) and overnight lows of 14°C (57°F). Rainfall totals roughly 92 mm across 13.5 rainy days, and the sun shines about 11.2 hours per day with 15.4 hours of daylight mid-month. Relative humidity averages 79%.
In context: August is the second-warmest month and the wettest in Helsinki. The sunniest month is June (15.4 h/day).
| Metric | August average |
|---|---|
| Daytime high | 20°C / 68°F |
| Overnight low | 14°C / 57°F |
| Rainfall | 92 mm over 13.5 rainy days |
| Sunshine | 11.2 h/day (15.4 h daylight) |
| Humidity | 79% |
| Travel score | 8.5 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Helsinki, Finland (60.17, 24.94) — see our methodology. Actual conditions vary year to year.
Not set on Helsinki? Browse the best places to visit in August ranked by travel score.
Frequently asked questions
How hot is Helsinki in August?
Daytime highs in Helsinki in August average 20°C (68°F); nights drop to about 14°C.
Does it rain in Helsinki in August?
Expect around 13.5 rainy days and 92 mm of rainfall in August.
Is August a good time to visit Helsinki?
August is one of the best months to visit Helsinki. Overall travel score: 8.5/10. The best months are June.
Also good in August, near Helsinki
Where should you go next month?
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