Espoo Weather in May
May in Espoo brings moderate temperatures, with daytime highs of 15°C (59°F) and nights around 6°C (43°F). Expect around 46 mm (1.8 in) of rainfall during the month.
Rainfall in Espoo in May
The climate data from previous years indicates about 11 days of rain, averaging 46 mm (1.8 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Espoo in May
In May, Espoo gets moderate temperatures, with highs of 15°C (59°F). Nights cool to around 6°C (43°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Espoo in May
Expect a lot of sunshine this month, with about 275 hours of sun. These sunny conditions help offset the cool temperatures, making it a pleasant month to explore outdoors.
Wind Speed in Espoo in May
May has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.
Average water temperature in May
At 4°C (39°F), the water is very cold. Most people find it too uncomfortable for anything beyond a brief wade.If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Espoo's climate page.
Espoo Temperature in May
Min Temperature
6°C (43°F)
Max Temperature
15°C (59°F)
Water Temperature
4°C (39°F) *
Chance of Rain
36%
Precipitation
46 mm (1.8 in)
Rainy days
11 days
Humidity
65% *
Windspeed
3 m/s (6 knots) *
Sunshine
275 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Espoo typically rise from around 12°C (54°F) at the start of May to approximately 17°C (63°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 8°C (46°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Espoo in May
Browse day-by-day weather records for Espoo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Espoo historical weather extremes in May
According to our 50 years of weather records for Espoo, the following extremes were recorded between 1976 and 2026.
- On May 30, 1995, temperatures climbed to 29°C (84°F), marking the warmest May day on record.
- The coldest May day was on May 19, 1980, with a maximum of 2°C (36°F).
- Espoo registered its coldest May night on May 2, 1995, with temperatures dropping to -5°C (23°F).
Best Places in Finland in May
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in May →
perfect weather
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What to Wear in Espoo in May
Pack for changing conditions in Espoo in May. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. The water temperature sits at about 4°C (39°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Espoo in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Espoo's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Espoo climate overview or explore weather in Finland.
