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Espoo, Uusimaa Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Espoo, Uusimaa?
Espoo, Uusimaa gets 451 mm of precipitation a year over about 75 rainy days. July is the warmest month (average high 22°C) and January the coldest (average low -6°C).
Humid continental climate
Espoo, Uusimaa has warm summers and cold winters. Daytime highs range from about -1°C in January to 22°C in July. August is usually the wettest month. The most comfortable time to visit is typically June to July, when daytime highs sit near 21°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -4° | 0° |
| Spring | Mar–May | 2° | 9° |
| Summer | Jun–Aug | 13° | 21° |
| Autumn | Sep–Nov | 5° | 11° |
How much rain does Espoo get?
Espoo gets 451 mm of precipitation in an average year, spread over about 75 days with measurable rain. That is fewer rainy days than 99% of Finland.
August is the wettest month, with 56 mm. May is the driest, with 21 mm. December has the most rainy days, about 9.
The longest dry spell in the last five years lasted 16 days, to March 24, 2022.
From October 2025 to September 2026 Espoo got 117 mm of rain, against a normal of 451 mm for those months. July 2026 had the most, with 63 mm.
Espoo weather by month
Espoo weather in January
In January, Espoo averages a high of -1°C and a low of -6°C. It gets 36 mm of precipitation over about 8 rainy days. Estimated sunshine is 16% of daylight hours, derived from ERA5 cloud cover. The January record high is 8°C (1973) and the record low is -24°C (1980).
Espoo weather in February
In February, Espoo averages a high of -1°C and a low of -5°C. It gets 30 mm of precipitation over about 7 rainy days. Estimated sunshine is 22% of daylight hours, derived from ERA5 cloud cover. The February record high is 8°C (2015) and the record low is -27°C (1979).
Espoo weather in March
In March, Espoo averages a high of 3°C and a low of -3°C. It gets 22 mm of precipitation over about 5 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The March record high is 13°C (2022) and the record low is -20°C (1971).
Espoo weather in April
In April, Espoo averages a high of 8°C and a low of 1°C. It gets 23 mm of precipitation over about 5 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The April record high is 20°C (2014) and the record low is -8°C (1974).
Espoo weather in May
In May, Espoo averages a high of 15°C and a low of 7°C. It gets 21 mm of precipitation over about 4 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The May record high is 28°C (2018) and the record low is -3°C (1976).
Espoo weather in June
In June, Espoo averages a high of 19°C and a low of 12°C. It gets 41 mm of precipitation over about 5 rainy days. Estimated sunshine is 56% of daylight hours, derived from ERA5 cloud cover. The June record high is 31°C (1972) and the record low is 2°C (1975). June is one of the most comfortable months to visit.
Espoo weather in July
In July, Espoo averages a high of 22°C and a low of 14°C. It gets 31 mm of precipitation over about 4 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The July record high is 33°C (2019) and the record low is 8°C (2009). July is one of the most comfortable months to visit.
Espoo weather in August
In August, Espoo averages a high of 21°C and a low of 13°C. It gets 56 mm of precipitation over about 6 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The August record high is 32°C (1975) and the record low is 4°C (1978).
Espoo weather in September
In September, Espoo averages a high of 16°C and a low of 10°C. It gets 38 mm of precipitation over about 6 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The September record high is 26°C (2024) and the record low is -3°C (1976).
Espoo weather in October
In October, Espoo averages a high of 9°C and a low of 4°C. It gets 56 mm of precipitation over about 8 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The October record high is 18°C (1973) and the record low is -8°C (1980).
Espoo weather in November
In November, Espoo averages a high of 6°C and a low of 1°C. It gets 48 mm of precipitation over about 9 rainy days. Estimated sunshine is 17% of daylight hours, derived from ERA5 cloud cover. The November record high is 14°C (2022) and the record low is -19°C (1980).
Espoo weather in December
In December, Espoo averages a high of 2°C and a low of -2°C. It gets 47 mm of precipitation over about 9 rainy days. Estimated sunshine is 13% of daylight hours, derived from ERA5 cloud cover. The December record high is 11°C (2015) and the record low is -29°C (1978).
Sunshine, humidity and wind in Espoo
June is the sunniest month in Espoo, with estimated sunshine of 56% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 13%. The annual cloud-cover estimate is 32% of daylight hours; it is not a measurement of sunshine duration. Espoo is sunnier than 84% of Finland.
Humidity peaks in January at 90% and is lowest in May at 62%.
First and last freeze in Espoo
The first fall freeze in Espoo typically comes around October 14, and the last spring freeze around May 4. That leaves a frost-free growing season of about 163 days.
Espoo weather records
These records cover HELSINKI ILMALA during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Espoo station is 33°C, on July 28, 2019. The coldest is -29°C, on December 31, 1978.
The wettest day in the available station history brought 62 mm of precipitation, on August 23, 2019.
44 all-time records have been set at the station since 1970.
The best time to visit Espoo
The most comfortable time to visit is typically June to July, when daytime highs sit near 21°C.
Winter (December–February) is cold, with average highs around 0°C and lows near -5°C.
Spring (March–May) is chilly, with average highs around 9°C and lows near 2°C.
Summer (June–August) is warm, with average highs around 21°C and lows near 13°C. It can feel humid.
Autumn (September–November) is chilly, with average highs around 10°C and lows near 5°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -6° | -1° | 36 mm | 8 | 90% | 16% | 8° | -24° |
| February | -5° | -1° | 30 mm | 7 | 87% | 22% | 8° | -27° |
| March | -3° | 3° | 22 mm | 5 | 81% | 37% | 13° | -20° |
| April | 1° | 8° | 23 mm | 5 | 70% | 44% | 20° | -8° |
| May | 7° | 15° | 21 mm | 4 | 62% | 46% | 28° | -3° |
| June | 12° | 19° | 41 mm | 5 | 65% | 56% | 31° | 2° |
| July | 14° | 22° | 31 mm | 4 | 73% | 41% | 33° | 8° |
| August | 13° | 21° | 56 mm | 6 | 78% | 36% | 32° | 4° |
| September | 10° | 16° | 38 mm | 6 | 82% | 32% | 26° | -3° |
| October | 4° | 9° | 56 mm | 8 | 86% | 24% | 18° | -8° |
| November | 1° | 6° | 48 mm | 9 | 89% | 17% | 14° | -19° |
| December | -2° | 2° | 47 mm | 9 | 90% | 13% | 11° | -29° |
Station: HELSINKI ILMALA, 15 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Espoo climate questions
How much rain does Espoo get?
Espoo gets 451 mm of precipitation in an average year, over about 75 rainy days.
What is the wettest month in Espoo?
August is the wettest month in Espoo, with 56 mm. May is the driest, with 21 mm.
How many rainy days does Espoo have a year?
Espoo has about 75 days with measurable rain in an average year. December has the most, about 9.
What is the hottest month in Espoo?
July is the warmest month in Espoo, with an average high of 22°C.
What is the coldest month in Espoo?
January is the coldest month in Espoo, with an average low of -6°C.
What is the record high temperature in Espoo?
Within the available 1970–2026 station history, the record high at the Espoo station is 33°C, set on July 28, 2019. The record low is -29°C, on December 31, 1978.
What is the sunniest month in Espoo?
June is the sunniest month in Espoo, with estimated sunshine of 56% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Espoo?
The first fall freeze in Espoo typically comes around October 14. The last spring freeze is around May 4.
What is the best time to visit Espoo?
The most comfortable time to visit is typically June to July, when daytime highs sit near 21°C.