SeasonMapMariehamn (Aland) weather in July
Åland Islands
July in Mariehamn: nice, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Mariehamn · #444 of 1383 destinations to visit in July · comfort 86/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Mariehamn in July
No notes yet. Open Mariehamn on the map to add the first one.
Mariehamn climate normals — July
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Sea temperature | 18°C / 65°F | 🧊 bracing |
| Rainfall | 59 mm / 2.3 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 14.1 h/day | |
| Daylight | 18 h | |
| Wind | 22 km/h / 13 mph | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Mariehamn in July
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.
Busyschool holidays in 7 of the markets that fill it, one of its best months for weather(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).
Best weatherMariehamn's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Mariehamn in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Archipelago summer season
15 May – 10 Sep · usuallySummer season opensThe inter-island ferries move to the full timetable, the guest harbours and the Pommern open up, and the cafes on Torggatan put tables outside. Outside this window a lot of it simply is not running. Source ↗
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 July — FAQ
- Is July a good time to visit Mariehamn?
- July in Mariehamn: nice, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Mariehamn on SeasonMap's comfort score (86/100).
- What is the weather like in Mariehamn in July?
- In July, Mariehamn averages a daily high of 18.7°C and a low of 15.5°C, with about 59.4 mm of rain over roughly 10.8 rainy days.
- What is the air quality in Mariehamn in July?
- Mariehamn has a mean US Air Quality Index of about 36 in July.
Other months in Mariehamn
Compare Mariehamn in July
Warmer or cooler than Mariehamn in July
Similar destinations in Northern Europe — July
Within 300 km: Stockholm's Stockholm Pride around 25 Jul – 10 Aug, and Helsinki's Berry and crayfish season around 20 Jul – 10 Sep.