Best Time to Visit Mariehamn, Mariehamn, Åland Islands
Month-by-month climate guide for planning a trip to Mariehamn.
Mariehamn does not have a month that clearly fits our sunny profiles. Its practical travel window centres on its warmest (July, 15.8°C / 60.4°F) and driest (May, 28 mm / 1.1 in) months. The drier stretch runs through December–June; the wetter half falls in July–November. At the city itself, monthly average temperatures range from -3.2°C / 26.2°F in February to 15.8°C / 60.4°F in July, with rainfall from 28 mm / 1.1 in (May) to 70 mm / 2.8 in (November). These are point-value climate normals sampled at Mariehamn, Mariehamn, Åland Islands's coordinates — usually more actionable for travellers than the country-wide average. Mariehamn's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| July | 15.8°C60.4°F | 59 mm2.3″ | — |
| June | 12.9°C55.2°F | 45 mm1.8″ | — |
| May | 8.1°C46.6°F | 28 mm1.1″ | — |
No month at Mariehamn matches our sunny profiles. The three above are the driest-and-warmest fallback.
Frequently asked questions
When is the best time to visit Mariehamn?
Mariehamn doesn't have a month that clearly matches our sunny profiles. The practical travel window centres on May (driest, ~28 mm / 1.1 in) and July (warmest, 15.8°C / 60.4°F). Because these are point values at the city, they can differ substantially from Åland Islands's national average.
When is the rainy season in Mariehamn?
The rainy season at Mariehamn, Mariehamn runs through July–November, when monthly rainfall exceeds the annual median of about 54 mm / 2.1 in. The wettest single month is November (70 mm / 2.8 in).
What is the driest month in Mariehamn?
The driest month in Mariehamn is May, averaging about 28 mm / 1.1 in of rainfall. Temperature that month averages 8.1°C / 46.6°F.
What months should I avoid visiting Mariehamn?
The least comfortable months for travel to Mariehamn — based on point-value climate at the city — are January, February, March, August, October, November, December. These are the wettest or coolest months at this location. Rainfall peaks at 70 mm / 2.8 in in November, and the coldest month averages -3.2°C / 26.2°F.
Is Mariehamn climate different from Åland Islands overall?
Yes, usually. Our Mariehamn figures are point-value climate normals sampled at the city itself, while our Åland Islands figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Mariehamn specifically — usually the more actionable data for a traveller planning to spend time in the city.