Weather in Helsinki in June 2025
Average weather
Average temperature in Helsinki in June
The temperature in June is +21°C on average, with a range between a maximum of +28°C during the day and a minimum of +4°C at night.
The average maximum temperature goes up 63% by the end of the month, compared with the beginning of the month, from +11°C to +26°C.
Is Helsinki warm or cold in June?
Helsinki is typically mild in June.
Maximum temperatures go up compared to the previous month from +12°C to +16°C. The minimum temperature also goes up from +5°C to +10°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
June is one of the warmest months in Helsinki, here is the comparison with other months:
Water temperature in Helsinki in June
Water in Helsinki in June is Cold. It varies from +1°C to +17°C, with an average of +9°C. The air temperature averaging +16°C is higher than the water temperature.
In June, water temperatures are average relative to the rest of the year:
Can you swim in Helsinki in June?
Climate in Helsinki in June
| May | June | July | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +12°C | +16°C | +20°C | ||||
| Min. temperature | ||||||
| -2°C | +2°C | +7°C | ||||
| Max. temperature | ||||||
| +26°C | +31°C | +32°C | ||||
| Rainfall | ||||||
| 42 mm | 58 mm | 69 mm | ||||
| Wind | ||||||
| 4 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +4°C | +9°C | +12°C | ||||
| Humidity | ||||||
| 68% | 72% | 72% | ||||
| Air pressure | ||||||
| 1013 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 12 | 10 | 10 | ||||
| Cloudy days | ||||||
| 7 | 7 | 5 | ||||
| Rainy days | ||||||
| 11 | 12 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
June weather is still as good as in May. It’s getting warmer as June arrives. The average maximum temperature goes up from +12°C to +16°C during the day. Prepare for more rain. Average rainfall goes from 42 mm to 58 mm. Humidity rises from 68% to 72%. Winds are calmer in comparison to May, going down from 4 m/s to 3 m/s on average. The days becoming less sunny, going from 12 sunny days in May to 10 in June.
July brings much the same weather, it remains good.
Wind
The average wind speed is 4 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Helsinki is gradually decreasing during June, going from 8 m/s to 3 m/s over the course of the month.
Rain
How was the weather last June in Helsinki?
Climate Change over Years
The climate in Helsinki in June has not changed much over the last 43 years.
The average temperature was the lowest in 1987 (+5°C) and the highest in 2020 (+11°C). The driest year was 2002 with only 248 mm of rainfall, and the wettest year was 2020 with 1153 mm.
FAQ
Is June a good time to visit Helsinki?
Can you sunbathe in Helsinki in June?
Can you swim in Helsinki in June?
Is Helsinki rainy in June?
Is it sunny in Helsinki in June?
Other cities in Finland
Monthly weather in Helsinki
Source of the data
For this page, we’ve looked at the typical weather in Helsinki, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.