Helsinki in August

In August, Helsinki averages 20°C (68°F) during the day and 13°C (55°F) at night, with around 13 days of rain (80 mm total).

Conditions are comfortable for sightseeing without being sweltering. Plan for unsettled weather and bring rain gear.

August offers comfortable temperatures in Helsinki, with some rain to plan around.

20°C
Avg high
13°C
Avg low
13
Rain days
80 mm
Rainfall

Helsinki in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January -3°C / 27°F -7°C / 19°F 55 mm 17 11
February -3°C / 27°F -8°C / 18°F 40 mm 15 11
March 1°C / 34°F -5°C / 23°F 40 mm 12 7
April 8°C / 46°F 0°C / 32°F 35 mm 11 2
May 15°C / 59°F 5°C / 41°F 40 mm 11 0
June 19°C / 66°F 11°C / 52°F 55 mm 12 0
July 22°C / 72°F 14°C / 57°F 75 mm 12 0
August 20°C / 68°F 13°C / 55°F 80 mm 13 0
September 15°C / 59°F 8°C / 46°F 70 mm 13 0
October 8°C / 46°F 3°C / 37°F 80 mm 15 0
November 3°C / 37°F -1°C / 30°F 70 mm 16 5
December -1°C / 30°F -5°C / 23°F 55 mm 17 9

Other cities with similar August weather

🗺 Open Helsinki on the interactive map

Check the live 10-day forecast and sunrise/sunset.