When to go · Helsinki
Helsinki in August
Great month. Warm, first dark evenings, busy sea.
Key facts
- Verdict
- Great
- Temperature
- 20°C (68°F)68°F (20°C) / 13°C (55°F)55°F (13°C)
- average high / low
- Rain days
- 12
- Crowds
- Medium
- Finland overall
- Prices
- Medium
- Finland overall
Verdict
Warm, first dark evenings, busy sea.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than August?
No other month rates higher than August for Helsinki in this guide.
Weather in August
- HelsinkiHighs around 20 °C (68 °F), lows around 13 °C (55 °F), rain on about 12 daysHighs around 68 °F (20 °C), lows around 55 °F (13 °C), rain on about 12 days
- South coast, Finland · Helsinki, Turku, Porvoo, Ålandbest weather
Around −5 °C (23 °F) in January, 20–23 °C (68–73 °F) in July; 19 h of daylight at midsummer, 6 h in late December. The sea often freezes near shore in cold winters.Around 23 °F (−5 °C) in January, 68–73 °F (20–23 °C) in July; 19 h of daylight at midsummer, 6 h in late December. The sea often freezes near shore in cold winters.
Summer season
Long light, terraces, sea swimming, Flow in August
Watch: Midsummer weekend shuts the city; some restaurants close in July.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Flow Festival check
Mid-August · Suvilahti
Music festival; hotels fill and prices rise
Crowds and prices
- Crowds · Finland overall
- Medium
- Prices · Finland overall
- Medium
Finland overall: Still warm, crayfish season, Flow festival; dark evenings return late in the month.
Compare two months
Weather, crowds and prices for any two months in Helsinki, side by side.
Verdict
Aug: Great
May: Great
Daytime high
Aug: 20 °C (68 °F)68 °F (20 °C)
May: 14 °C (57 °F)57 °F (14 °C)
Night low
Aug: 13 °C (55 °F)55 °F (13 °C)
May: 6 °C (43 °F)43 °F (6 °C)
Rain days
Aug: 12
May: 9 (better)
Crowds
Aug: Medium
May: Low
Prices
Aug: Medium
May: Medium
Festivals listed
Aug: 1
May: 1
August: Warm, first dark evenings, busy sea.
May: Bright and fresh; ferries and terraces start.
Helsinki: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast