Akureyri weather in September
September in Akureyri: cool, rainy, with clean air — a gamble, with 19 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#6 of 12 months in Akureyri · #1055 of 1413 destinations to visit in September · comfort 64/100 (tier C)
- Days
- 12°C
- Nights
- 4°C
- Wet days
- 19
- Sun
- 5.9 h
- Humidity
- 86%
- Daylight
- 13 h

Traveller notes on Akureyri in September
Regulars are direct that no one predicts the weather here accurately this month, rain and wind a near-constant feature of a genuinely unsettled autumn, though magical minutes or hours of sunshine can break through between the clouds and drizzle. Our row backs that cold, genuinely wet read, 11.9C over 3.9C nights feeling as low as 1C, with a substantial 140.6mm of rain across 18.9 days and real early snow, 31.5cm already possible by the second week. Regulars are consistent high season winds down by the end of the month, and the northern lights themselves become a real possibility again as nights grow properly dark. Genuinely warm layers plus wind and rain protection remain the standard advice throughout. The record: humidity 86 percent, 5.9 hours of sun and a 10.2 kph wind.
Other months in Akureyri
April in the north of Iceland is still winter, and regulars say so without hedging: mountain passes can be icy, early April can be properly wintry up here, and late April is usually mild - which is the whole month in one sentence. Their advice is to carry plans A, B and C and to watch road conditions rather than the calendar. Our column agrees rather than softening it: 41.1cm of snow across the month, 7.1C by day reading as 4C, nights at -1C feeling like -5C, and 64.3mm falling across 13.4 days. The compensation is light - 15.4 hours of daylight already, and climbing fast. The record: humidity 84 percent, 9.4 hours of sun and AQI 40.
Regulars warn that May in the north is not the May of the south: spring comes late here, so a green landscape is not to be assumed, and there can still be snow in the north and at the mountain passes. Their advice is to watch the forecast and be ready to drive in it, because cool weather, rain and snow can all turn up in one day, especially over a hundred miles of road. One traveller's car showed 0 to 10C across early May, and our row sits inside that at 11.3C over 2.7C, feeling like 9C and -1C. It carries 25.1cm of snow. The compensation is the light: 19.2 hours of daylight and 11.4 of sun. The record: 64.6mm across 13.4 days and AQI 36.
August nights in lowland north Iceland run 5 to 10C and colder in the Highlands, which our row's 6.6C - reading as 5C - sits inside. Regulars say it would be unusual not to want a fleece or a heavy jumper at some point, on top of waterproofs, and that the change can be minutes rather than hours: warm sun on a hike, then cold windy rain. Some visitors do hit a heat wave and get shorts weather. Our 9.1 kph is much gentler than the near-constant wind and 20mph gusts they warn about, because Akureyri sits sheltered at the head of a long fjord while the open north coast and the interior do not - take the row as the town, not the trip. The 6.7cm of August snow is the Highlands in the grid square. The record: 14.9C days, 99.7mm across 15.4 precipitation days, 16.6 hours of daylight and AQI 26.
June in Akureyri is the month with no real night - around 22.5 hours of daylight at the solstice - and the forum attaches a useful local observation to it: days are often windy and wet, and the weather frequently comes good in the evening, with midnight running several degrees warmer than four in the afternoon. That is part of the case for the midnight-sun whale sailings, which also have fewer boats out and better odds with it. The Akureyri trips run down Eyjafjordur, Iceland's longest fjord, sheltered enough to be a calm sail; Husavik over the mountains has the bigger sightings reputation and the rougher water. Tours are seasonal and cancelled at short notice, so book ahead and leave slack. The record: 13.9C days that feel like 12C, 6C nights, 16.5 precipitation days carrying 102.2mm and 10.5 hours of sun.
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Akureyri climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Akureyri 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.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Akureyri'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 weatherAkureyri's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Akureyri in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Whales in Eyjafjordur
1 May – 30 Sep · usuallyWhale seasonHumpbacks work the length of the fjord through the summer and the boats leave from the town quay rather than a separate harbour. Sailings stop for wind, not for cold.
- Nature
Aurora season
1 Sep – 10 Apr · usuallyDark enough from early September to April, and the fjord walls block the town's own light better than most places. Cloud, not the lights, is what decides the night.
- Season
Snow season
Ski seasonAbout 32 cm of snow falls in the month.
from the climate normals
Nearby, and something's on
Within 300 km of Akureyri — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Akureyri?
Akureyri in September — FAQ
- Is September a good time to visit Akureyri?
- September in Akureyri: cool, rainy, with clean air — a gamble, with 19 rainy days. It ranks #6 of 12 months for Akureyri on SeasonMap's comfort score (64/100).
- What is the weather like in Akureyri in September?
- In September, Akureyri averages a daily high of 11.9°C and a low of 3.9°C, with about 140.6 mm of rain over roughly 18.9 rainy days.
- What is the air quality in Akureyri in September?
- Akureyri has a mean US Air Quality Index of about 28 in September.
- Does it snow in Akureyri in September?
- Akureyri sees roughly 31.5 cm of snowfall in September.
Within 300 km: Reykjavík's Whale watching season around 1 Apr – 15 Oct, and Vík's Aurora season around 1 Sep – 10 Apr.