Climate Chart of Espoo, Finland

Climate overview

Temperature

Monthly mean temperatures are coolest in January, at -3.6 °C, and warmest in July, at 17.6 °C. These are averages for each month, not daytime maximum temperatures, so they describe the broad temperature pattern rather than the conditions visitors will encounter on every day. The unweighted mean across monthly mean temperatures is 6.5 °C. It provides a year-round summary, but does not represent a day-weighted annual average or show the day-to-day range within any month.

Sunshine

Mean daily sunshine reaches its highest level in June, at 13.79 hours/day, and its lowest in December, at 0.96 hours/day. These monthly averages can help with planning outdoor time, but sunshine duration is not the same as day length and does not promise clear skies on a given day. Across the calendar-month means, the unweighted mean daily sunshine duration is 7.08 hours/day. This summarizes the figures without describing the weather or available sunshine on any particular date.

Rain

Mean daily rainfall is lowest in March, at 0.58 mm/day, and highest in August, at 2.89 mm/day. These are daily averages for the respective months, not monthly totals; the lower figure does not guarantee dry days, and neither figure indicates how frequently rain falls. The unweighted mean across monthly mean daily rainfall values is 1.55 mm/day. It is a useful broad reference, but cannot describe the timing or intensity of rainfall on an individual visit.

Snow

Mean daily snowfall is highest in January, at 11.25 mm/day; the unweighted mean across monthly mean daily snowfall values is 3.58 mm/day. These snowfall amounts do not establish how many days have snow, snow depth or snow cover, and cannot indicate skiing conditions.