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September Weather in Iceland

We show the September climate in Iceland by comparing the average September weather in 2 representative places: Reykjavík and Akureyri.

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Reykjavík
Iceland
Akureyri
Iceland
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Average High and Low Temperature in September in Iceland

Average High and Low Temperature in September in IcelandSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303020°F20°F25°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°FAugOct454339535148423935494534383429514741ReykjavíkReykjavík
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.

Reykjavík in September

Average Hourly Temperature in Reykjavík in SeptemberSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctvery coldcoldcool

Akureyri in September

Average Hourly Temperature in Akureyri in SeptemberSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctvery coldcoldcool
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in September in Iceland

Chance of Clearer Skies in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOct353535313028AkureyriAkureyri
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).

Daily Chance of Precipitation in September in Iceland

Daily Chance of Precipitation in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOct4546463942ReykjavíkReykjavík
The percentage of days in which precipitation is observed, excluding trace quantities.

Average Monthly Rainfall in September in Iceland

Average Monthly Rainfall in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 inAugOct4.14.54.63.43.73.5AkureyriAkureyri
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.

Average Monthly Snowfall in September in Iceland

Average Monthly Snowfall in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inAugOct0.10.10.93.2ReykjavíkReykjavíkAkureyriAkureyri
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.

Hours of Daylight in September in Iceland

Hours of Daylight in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr0 hr4 hr4 hr8 hr8 hr12 hr12 hr16 hr16 hr20 hr20 hr24 hr24 hrAugOct14.513.011.4ReykjavíkReykjavíkAkureyriAkureyri
The number of hours during which the Sun is at least partly above the horizon.

Chance of Muggy Conditions in September in Iceland

Chance of Muggy Conditions in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctReykjavíkReykjavík
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).

Average Wind Speed in September in Iceland

Average Wind Speed in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphAugOct9.710.611.39.19.910.3ReykjavíkReykjavíkAkureyriAkureyri
The average of mean hourly wind speeds at 10 meters above the ground.

Tourism Score in September in Iceland

Tourism Score in September in IcelandSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303000224466881010AugOct1.50.80.3ReykjavíkReykjavík
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in September in Iceland

Beach/Pool Score in September in IcelandSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303000224466881010AugOctReykjavíkReykjavíkAkureyriAkureyri
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in September in Iceland

Growing Season in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%20%20%40%40%60%60%80%80%100%100%AugOctReykjavíkReykjavíkAkureyriAkureyri
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in September in Iceland

Growing Degree Days in September in IcelandSep112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030180°F180°F200°F200°F220°F220°F240°F240°F260°F260°F280°F280°FAugOctReykjavíkReykjavíkAkureyriAkureyri
The average growing degree days accumulated over the course of September, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Water Temperature in September in Iceland

Average Water Temperature in September in IcelandSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303040°F40°F42°F42°F44°F44°F46°F46°F48°F48°F50°F50°F52°F52°F54°F54°FAugOct515048474644ReykjavíkReykjavíkAkureyriAkureyri
The daily average wide-area surface water temperature.

Average Daily Incident Shortwave Solar Energy in September in Iceland

Average Daily Incident Shortwave Solar Energy in September in IcelandSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWhAugOct2.82.11.4ReykjavíkReykjavíkAkureyriAkureyri
The average daily shortwave solar energy reaching the ground per square meter.

This report illustrates the typical weather for Reykjavík and Akureyri, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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