The best months

  • SunJuly to August
  • CityMay to September

…

The twelve months at a glance

Month-by-month verdict for Helsinki
JanFebMarAprMayJunJulAugSepOctNovDec
SunBest avoided, 8/100Best avoided, 20/100Best avoided, 20/100Best avoided, 20/100Best avoided, 20/100Fair, 47/100Good, 64/100Fair, 59/100Best avoided, 20/100Best avoided, 20/100Best avoided, 8/100Best avoided, 5/100
CityBest avoided, 12/100Best avoided, 20/100Best avoided, 20/100Fair, 42/100Good, 68/100Good, 74/100Good, 71/100Good, 71/100Good, 67/100Fair, 37/100Best avoided, 10/100Best avoided, 7/100
  • Ideal
  • Good
  • Fair
  • Best avoided
  • Risk flagged

Temperatures and rain

Monthly temperatures and rain in HelsinkiThe values are repeated in the table under the chart.-10°C0°C10°C20°CHighLow82 mmRainJFMAMJJASOND
See the month-by-month values
MonthHighLowRain
January-2°C-6°C57 mm
February-2°C-8°C48 mm
March2°C-5°C42 mm
April8°C0°C41 mm
May14°C5°C48 mm
June18°C10°C76 mm
July22°C13°C82 mm
August20°C12°C82 mm
September15°C8°C63 mm
October8°C3°C67 mm
November3°C0°C67 mm
December0°C-4°C64 mm

Estimated flight time

  • From YUL : about 8 h 10 min
  • From YYZ : about 8 h 40 min
  • From YVR : about 9 h 40 min

Estimate of a nonstop flight computed from the distance: not a schedule. Connections lengthen the trip.

Getting to Helsinki with points

Keep going

Where this data comes from

Temperatures, sunshine and rain: monthly normals we computed over 1991-2020. These are estimates from a climate reanalysis, not station readings.

  • ERA5 reanalysis-era5-single-levels-timeseries (C3S, CC-BY)

Contains modified Copernicus Climate Change Service information (ERA5, 2026, CC BY 4.0 licence). Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Sea temperature: NOAA OISST v2.1 (Huang et al., 2021, J. Climate 34, doi:10.1175/JCLI-D-20-0166.1).