Akureyri weather in September

In September, Akureyri sees average daytime highs of 8°C and overnight lows near 3°C, with 114 mm of precipitation across 16.1 wet days and about 12.7 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 6°C by the end. The sky is clear or mostly clear about 6% of the time in September, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of September to 11 hours by month's end. Set against the rest of the year, September is Akureyri's 4th-clearest and 5th-windiest month. For the whole year in context, see Akureyri's year-round climate.

Daytime high
4th warmest
Overnight low
9th coldest
Precipitation
114 mm
16.1 wet days
Daylight
12 h 42 min
6:46 AM – 7:27 PM
Cloud cover
81%
4th clearest
Wind
7 km/h
5th windiest
Solar energy
1.93 kWh/m²
Travel score
1.1
out of 10

Akureyri is town in Iceland.

Air quality
Good
PM10 15.8 µg/m³ · 2019
Density
141/km²
people per km²
Founded
1786

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 10°C in the first days to 6°C by the end.

A typical September day in Akureyri reaches about 8°C in the afternoon and slips back to 3°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 13°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

-5°10°15°151015202530
Avg high (°C)Avg low (°C)
1105
2105
3105
4105
5105
6105
7104
894
994
1094
1194
1294
1394
1483
1583
1683
1783
1883
1983
2072
2172
2272
2372
2472
2562
2661
2761
2861
2961
3061

How September really feels in Akureyri

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 8 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
8
wind chill below the day's low

The story in September is cold — wind chill drags the overnight "feels like" below the raw low.

Akureyri weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -6°11517.217.14.10.0
Feb-1° / -6°9515.715.37.60.0
Mar-1° / -6°9716.917.611.10.0
Apr / -3°7314.213.814.80.0
May / 6512.6918.50.2
Jun10° / 6112.12.421.41.9
Jul12° / 7714.20.420.12.8
Aug12° / 8915.10.916.42.6
Sep / 11416.15.612.71.1
Oct / -2°14218.514.79.10.0
Nov-0° / -5°12216.816.25.40.0
Dec-1° / -6°12217.3172.60.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11288
21288
31387
41387
51585
61585
71684
81783
91783
101783
111783
121882
131882
141882
151783
161882
171882
181882
191882
201882
211882
221882
231981
241981
251981
261981
271981
281981
291882
301882

Chance of precipitation in September

Any precipitationSnow

Akureyri gets around 114 mm of rain and snow over 16.1 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 55% and peaks near 59% on the wettest days, and about 6 days bring snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1549
25410
35410
45411
55412
65413
75313
85314
95315
105316
115317
125317
135318
145419
155419
165420
175421
185421
195422
205422
215423
225523
235524
245625
255626
265727
275729
285830
295831
305933

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 14 h 30 min at the start of September to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 210 minutes over September. Sunrise moves from 5:58 AM to 7:31 AM, and sunset from 8:26 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:588:26
214.46:018:22
314.26:048:19
414.16:078:15
514.06:118:11
613.96:148:07
713.86:178:03
813.66:207:59
913.56:247:55
1013.46:277:51
1113.36:307:47
1213.26:337:43
1313.06:377:39
1412.96:407:35
1512.86:437:31
1612.76:467:27
1712.66:497:23
1812.46:537:19
1912.36:567:15
2012.26:597:11
2112.17:027:08
2212.07:057:04
2311.97:097:00
2411.77:126:56
2511.67:156:52
2611.57:186:48
2711.47:216:44
2811.37:256:40
2911.17:286:36
3011.07:316:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 1.93 kWh/m².

For context, solar energy here swings from a low near 0.02 kWh/m² to a high of 5.21 kWh/m² in May across the year — September's 1.93 kWh/m² falls in the middle.

0123151015202530
Solar energy (kWh/m²)Level
12.5Moderate
22.4Moderate
32.4Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.2Moderate
82.2Moderate
92.1Moderate
102.1Moderate
112.1Moderate
122.0Moderate
132.0Moderate
142.0Dim
151.9Dim
161.9Dim
171.9Dim
181.8Dim
191.8Dim
201.7Dim
211.7Dim
221.7Dim
231.6Dim
241.6Dim
251.6Dim
261.5Dim
271.5Dim
281.4Dim
291.4Dim
301.4Dim
Planning a trip in September

Is September a good time to visit Akureyri?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.1
Sightseeing
4th-best month of the year
Beach & pool
never really warm enough

September is a weaker month for outdoor sightseeing in Akureyri.

What to pack for Akureyri in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Akureyri sees daytime highs around 8°C and nights near 3°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 16 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Akureyri in September

The nearest coast averages about 8°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 51 km away) is warmest in August at about 9°C and coldest in March near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

2°4°6°8°10°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr3Bracing
May4Bracing
Jun7Bracing
Jul9Bracing
Aug9Bracing
Sep8Bracing
Oct6Bracing
Nov5Bracing
Dec4Bracing

UV index in Akureyri in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Akureyri peaks around June 12 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near December 17 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 3 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 12UV 4Dec 17UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul4Moderate
Aug3Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Akureyri?

Akureyri sits at 65.7°N, 18.1°W, in Iceland. The nearest listed city is Reykjavik, 249 km away.

ReykjavikKópavogurHafnarfjörðurVikKeflavikReykjanesbær

Topography around Akureyri

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Akureyri.

Within 3 km, the terrain around Akureyri has significant variations in elevation — a maximum elevation change of 415 m around an average of 60 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,536 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,526 m.

The land around Akureyri is covered by grassland (36%) and water (32%) within 3 km, grassland (50%) within 16 km, and grassland (30%), bare terrain (28%) and water (20%) within 80 km.

3 km
415 m
16 km
1,536 m
80 km
1,526 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainsnow and icewaterwetlandmoss and lichen
September weather nearby: Reykjavik 249 km · Kópavogur 251 km · Hafnarfjörður 256 km · Vik 256 km · Keflavik 282 km · Reykjanesbær 282 km · Tórshavn 687 km · Isle of Lewis 1,028 km

Iceland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 118% of US
price level, 2025
GDP per capita
$98,323
2025
Happiness
7.5 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
2
per 100k/yr, 2019
Income group
High
World Bank
Religion
Evangelical Lutheran Church of Iceland 59%other or unspecified 19%none 8%Independent Congregation of Reykjavik 3%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Akureyri (65.6835°, -18.0878°), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).