Late summer · Weather & things to do
Helsinki in August
Little changes in Helsinki from July: highs stay near 66°F (19°C), lows near 60°F (15°C), and about 2.8 in (71 mm) of rain falls.
At 85/100 for comfort (2nd of 12), it's one of the best months to visit.
- Avg high
- 66°F (19°C)
- Avg low
- 60°F (15°C)
- Rain
- 2.8 in (71 mm)
- Humidity
- 80%
- Cloud cover
- 63%
- Daylight
- ~15 h 23 min
- Comfort score
- 85/100 · Great
What August feels like
Highs near 66°F (19°C) make for comfortable sightseeing weather.
Nights cool to an average low of 60°F (15°C).
Some rain is likely, about 2.8 in (71 mm) in the month, so pack for a shower or two.
With about 15 h 23 min of daylight, evenings stay light late.
Plan around August
August is one of Helsinki's best months on the climate data.
- Last of the best-scoring months: by September, the score drops to 76/100.
- Comfort holds steady from July (86 → 85/100).
- Our Rovaniemi, Saariselkä & Helsinki route is planned for Late Nov – Dec, a window set by the holiday season rather than the weather — August falls outside it.
What to pack for August
- A warm layer for eveningslows near 60°F
- Packable rain jacket or umbrellaabout 2.8 in of rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Helsinki in August
August is good outdoor weather here, so these picks lean toward the open air.
Löyly
Public sauna and restaurant in a timber-clad building on the Hernesaari shore, with steps down into the Baltic.
Aleksanterinkatu Christmas Street
Helsinki's main shopping street, hung with Christmas lights every year since 1949.
Why now August scores 85/100 for comfort, good conditions for being outside.
Helsinki Cathedral
Carl Ludvig Engel's white neoclassical Lutheran cathedral, set at the top of a wide flight of steps over Senate Square.
Helsinki Christmas Market
The city's main Christmas market fills Senate Square with wooden stalls, a carousel and a tall tree below the cathedral steps.
Café Ekberg
Helsinki's oldest bakery café, opened in 1852, on Bulevardi.
Nearby in August
- Tallinn in August~51 mi · highs 68°F, 2.8 in rain · 1°C (2°F) warmer by day, about as wet
- Riga in August~225 mi · highs 70°F, 3.1 in rain · 2°C (4°F) warmer by day, about as wet
- Stockholm in August~246 mi · highs 71°F, 2.8 in rain · 3°C (5°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Helsinki in August: quick answers
Is August a good time to visit Helsinki?
Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 66°F (19°C) and 2.8 in (71 mm) of rain.
How hot is Helsinki in August?
Average highs are 66°F (19°C) and average lows 60°F (15°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Helsinki in August?
Some: about 2.8 in (71 mm) of rain falls across August on average, the 3rd-wettest month of the year. The annual total is about 28.1 in (713 mm).
What should I pack for Helsinki in August?
Bring a warm layer for evenings (lows near 60°F), packable rain jacket or umbrella (about 2.8 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Helsinki
Planning Helsinki in August?
Share this August plan with your group, poll everyone on dates and keep the packing list in one place.