SeasonMapMariehamn (Aland) weather in April
Åland Islands
April in Mariehamn: cold, dry, with clean air — a good time to visit.
#6 of 12 months in Mariehamn · #1244 of 1383 destinations to visit in April · comfort 61/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Mariehamn in April
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Mariehamn climate normals — April
| Daytime high | 6°C / 42°F | 🧥 cold |
|---|---|---|
| Nighttime low | 2°C / 36°F | |
| Sea temperature | 3°C / 38°F | 🥶 cold sea |
| Rainfall | 24 mm / 1 in | ☀️ dry |
| Rainy days | 7 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 0°C / 32°F | |
| Sunshine | 11.3 h/day | |
| Daylight | 14.6 h | |
| Wind | 23 km/h / 14 mph | |
| Snowfall | 5.7 cm / 2.2 in | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Mariehamn in April
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 6 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Mariehamn's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherMariehamn's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Mariehamn in April
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Winter on the islands
1 Nov – 15 Apr · usuallyOff-season shutdownClosuresMost of the guest harbours, museums and summer restaurants close and the small archipelago routes drop to a skeleton timetable. The big Stockholm and Turku ferries still call, so getting here is never the problem.
Nearby, and something's on
Within 300 km of Mariehamn — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Mariehamn?
Mariehamn in April — FAQ
- Is April a good time to visit Mariehamn?
- April in Mariehamn: cold, dry, with clean air — a good time to visit. It ranks #6 of 12 months for Mariehamn on SeasonMap's comfort score (61/100).
- What is the weather like in Mariehamn in April?
- In April, Mariehamn averages a daily high of 5.5°C and a low of 2.4°C, with about 24.4 mm of rain over roughly 7 rainy days.
- What is the air quality in Mariehamn in April?
- Mariehamn has a mean US Air Quality Index of about 39 in April.
- Does it snow in Mariehamn in April?
- Mariehamn sees roughly 5.7 cm of snowfall in April.
Other months in Mariehamn
Compare Mariehamn in April
Warmer or cooler than Mariehamn in April
Similar destinations in Northern Europe — April
Within 300 km: Stockholm's Valborg on 30 Apr, and Helsinki's Vappu on 30 Apr – 1 May.