SeasonMapMariehamn (Aland) weather in January
Åland Islands
January in Mariehamn: freezing, a little rain, with clean air — one of the weakest months to visit.
#11 of 12 months in Mariehamn · #1348 of 1383 destinations to visit in January · comfort 27/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Mariehamn in January
No notes yet. Open Mariehamn on the map to add the first one.
Mariehamn climate normals — January
| Daytime high | 2°C / 35°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -3°C / 26°F | |
| Feels like (high) | -4°C / 25°F | |
| Sea temperature | 2°C / 36°F | 🥶 cold sea |
| Rainfall | 57 mm / 2.2 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | -3°C / 27°F | |
| Sunshine | 1.8 h/day | |
| Daylight | 6.8 h | |
| Wind | 29 km/h / 18 mph | |
| Snowfall | 18.2 cm / 7.2 in | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Mariehamn in January
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.
Peak crowdstravelers describe it as peak season, school holidays in 7 of the markets that fill it
Sourced from traveler notes: “…. Posters generally describe January as outside Mariehamn's high season, with correspondingly quieter streets and fewer open attrac…” — Tripadvisor community
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).
Toughest weatherMariehamn's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Mariehamn in January
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 January — FAQ
- Is January a good time to visit Mariehamn?
- January in Mariehamn: freezing, a little rain, with clean air — one of the weakest months to visit. It ranks #11 of 12 months for Mariehamn on SeasonMap's comfort score (27/100).
- What is the weather like in Mariehamn in January?
- In January, Mariehamn averages a daily high of 1.7°C and a low of -3.1°C, with about 56.6 mm of rain over roughly 10.7 rainy days.
- What is the air quality in Mariehamn in January?
- Mariehamn has a mean US Air Quality Index of about 30 in January.
- Does it snow in Mariehamn in January?
- Mariehamn sees roughly 18.2 cm of snowfall in January.
Other months in Mariehamn
Compare Mariehamn in January
Warmer or cooler than Mariehamn in January
Similar destinations in Northern Europe — January
Within 300 km: Tallinn's Christmas market on Town Hall Square on 20 Nov – 6 Jan, and Helsinki's Sea ice and winter swimming around 1 Jan – 20 Mar.