Mariehamn weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Good
Best time to visit: June – August
What is the weather like in Mariehamn in June?
In June, Mariehamn is cool: daytime highs average 15 °C, and nights cool down to about 11 °C. The sea averages 10.9 °C – swimming is only for the hardy. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 45 mm. All in all, June is a good month for a holiday in Mariehamn.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 18 h 50 min04:15 – 23:05
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 53 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+3Europe/Mariehamn
How the score comes together
- Temperatureweight 50 %69 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %72 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Mariehamn in June: quick answers
Is Mariehamn hot in June?
No. In June, Mariehamn is cool: daytime highs average 15 °C and nights drop to about 11 °C.
Can you swim in Mariehamn in June?
Only if you don't mind cold water: in June the sea averages just 10.9 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Mariehamn in June?
Rain falls on about 8 days, adding up to 45 mm.
Mariehamn month by month
The whole year in MariehamnAll destinations: Åland IslandsWhere to go in JuneSea temperature in June
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences