Ålesund weather in September
Norway

September in Ålesund: cool, soaked, with clean air — a gamble, with 19 rainy days.
#6 of 12 months in Ålesund · #1053 of 1383 destinations to visit in September · comfort 63/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ålesund in September
Other months in Ålesund
Ålesund's forum calls June a relatively dry month for the fjord region, though genuinely capable of anything from sunny and warm to cold, windy and rainy. Regulars put typical temperatures in the 8-18°C range, and flag round-the-clock daylight as the real seasonal draw — a wind- and water-resistant jacket is standard advice regardless of what the forecast says.
Add your own note from Ålesund's card on the map.
Ålesund climate normals — September
| Daytime high | 17°C / 62°F | 🙂 cool |
|---|---|---|
| Nighttime low | 8°C / 47°F | |
| Feels like (high) | 14°C / 57°F | |
| Sea temperature | 15°C / 58°F | 🥶 cold sea |
| Rainfall | 261 mm / 10.3 in | ⛈ soaked |
| Rainy days | 19 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 7.3 h/day | |
| Daylight | 12.9 h | |
| Wind | 24 km/h / 15 mph | |
| Snowfall | 0.2 cm / 0.1 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 Ålesund in September
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 crowdsCruise ships in port, Autumn break in Norway, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Ålesund'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 weatherÅlesund's weather peaks May–July.
Best weatherFair weatherToughest weather
What's on in Ålesund in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Cruise ships in port
1 May – 20 Sep · usuallyCruise seasonCrowdedAlesund is the tender port for Geiranger and the ships tie up right below the town. On a two-ship morning the Aksla steps and the fish restaurants are gone until mid-afternoon.
Nearby, and something's on
Within 300 km of Ålesund — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Ålesund?
Ålesund in September — FAQ
- Is September a good time to visit Ålesund?
- September in Ålesund: cool, soaked, with clean air — a gamble, with 19 rainy days. It ranks #6 of 12 months for Ålesund on SeasonMap's comfort score (63/100).
- What is the weather like in Ålesund in September?
- In September, Ålesund averages a daily high of 16.9°C and a low of 8.1°C, with about 260.9 mm of rain over roughly 19.3 rainy days.
- What is the air quality in Ålesund in September?
- Ålesund has a mean US Air Quality Index of about 30 in September.
Other months in Ålesund
Compare Ålesund in September
Warmer or cooler than Ålesund in September
Similar destinations in Northern Europe — September
Within 300 km: Geiranger's Dalsnibba and Eagle Road open around 20 May – 5 Nov, and Bergen's Cruise ships in port around 1 May – 20 Sep.