Helsinki Weather in August

Mild and comfortable, with some rainy days. Average highs of 20°C and lows of 14°C, with around 13 rainy days expected throughout the month.

While August isn't our top-rated month for Helsinki, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.

Average high

20°C

Average low

14°C

Rainy days

13 days

Best months to visit

Year-round

What to do in Helsinki in August

Whatever the weather, Helsinki rewards curious visitors. Here are some of the best ways to spend your time:

Sauna culture immersion and thermal baths Uspenski Cathedral and church visits Design district shopping and museums Island hopping by ferry to Suomenlinna fortress Market Square and harbor dining Design Museum and Kiasma contemporary art

What to pack for August

Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.