Weather in Mariehamn in June 2025
- June is usually the wettest month of the year in Mariehamn;
Average weather
Average temperature in Mariehamn in June
Going from a maximum of +22°C during the day to a minimum of +7°C during the night, the temperature in June averages around +16°C.
The average maximum temperature goes up 73% by the end of the month, compared with the beginning of the month, from +10°C to +21°C.
Is Mariehamn warm or cold in June?
Mariehamn is typically mild in June.
Maximum temperatures go up compared to the previous month from +10°C to +15°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 Mariehamn, here is the comparison with other months:
Climate in Mariehamn in June
| May | June | July | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +10°C | +15°C | +19°C | ||||
| Min. temperature | ||||||
| -5°C | 0°C | +6°C | ||||
| Max. temperature | ||||||
| +21°C | +27°C | +30°C | ||||
| Rainfall | ||||||
| 31 mm | 45 mm | 49 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 84% | 85% | 84% | ||||
| Air pressure | ||||||
| 1014 HPa | 1011 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 10 | 9 | 9 | ||||
| Cloudy days | ||||||
| 11 | 10 | 9 | ||||
| Rainy days | ||||||
| 10 | 11 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
June weather is still as ok as in May. It’s getting warmer as June arrives. The average maximum temperature goes up from +10°C to +15°C during the day. Prepare for more rain. Average rainfall goes from 31 mm to 45 mm. Humidity rises from 84% to 85%. The average wind speed doesn’t change much during June, staying around 4 m/s. The days becoming less sunny, going from 10 sunny days in May to 9 in June.
But maybe it is worth considering traveling in July as the weather gets better.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Mariehamn is gradually decreasing during June, going from 5 m/s to 3 m/s over the course of the month.
Rain
How was the weather last June in Mariehamn?
Climate Change over Years
The climate in Mariehamn 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 2018 with only 269 mm of rainfall, and the wettest year was 2020 with 612 mm.
FAQ
Is June a good time to visit Mariehamn?
Can you sunbathe in Mariehamn in June?
Is Mariehamn rainy in June?
Is it sunny in Mariehamn in June?
Monthly weather in Mariehamn
Source of the data
For this page, we’ve looked at the typical weather in Mariehamn, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
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.