Weather in Reykjavík in september 2025

The weather in Reykjavik in september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.

Average weather throughout september

bad weather 6.6cm

Weather at 6am
47°F

Partly Cloudy

23%

Moderate rain at times

19%

Clear/Sunny

14%

Weather at 12pm
50°F

Partly Cloudy

20%

Moderate rain at times

18%

Clear/Sunny

15%

Weather at 6pm
50°F

Cloudy

24%

Partly Cloudy

19%

Clear/Sunny

13%

Weather at 3am
47°F

Moderate rain at times

32%

Partly Cloudy

19%

Cloudy

17%

Clear/Sunny

16%



Evolution of daily average temperature and precipitation in Reykjavík in september

These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Reykjavík in september.


The climate of Reykjavík in september is bad

the weather in Reykjavik in september is wet (with 5.4in of precipitation over 10 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 3.9in of rainfall over 7 days.

The climate is rather cool in that locality the month of september, but it is liveable when dressing hot. The thermometer averaged maximum of 52°F. On average, the recorded minimum temperature is 47°F. Thus, the mean temperature average in september in Reykjavik is 49°F. Note that these seasonal averages are in contrast with those observed in Reykjavik in september with a maximum record of 61°F in 2010 and a minimum record of 34°F in 2009.

Day length in Reykjavik in september is 13:02. The sun rises at 06:51 and sunset is at 19:53.

With a bad weather, the month of september is not recommended to go in this city in Iceland.



Seasonal average climate and temperature of Reykjavík in september

Check below seasonal norms These datas are compiled from the weather statements earlier years of the month of september.

September
Outside temperature
Average temperature 49°F
Highest temperature 52°F
Lowest temperature 47°F
Highest record temperature 61°F
(2010)
Lowest record temperature 34°F
(2009)
Number of days at +65°F 0 day(s)
(0%)
Number of days at -32°F 0 day(s)
(0%)
Sea temperature
Average sea temperature 50°F
Lowest sea temperature 47°F
Highest sea temperature 52°F
Wind
Wind speed 27km/h
Wind temperature 40°F
Precipitation (rainfall)
Rainfall 5.4in
Number of days with rainfall 10 day(s)
(33%)
Record daily rainfall 1.6in
(2019)
Snowfall 6.6cm
Other climate data
Humidity 87%
Visibility 8.69km
Cloud cover 66%
UV index 3
Daily sunshine hours 9
Sunrise and sunset
Time of sunrise 06:51
Time of sunset 19:53
Length of day 13:02
Our opinion about the weather in september
Our opinion at whereandwhen.net bad



How was the weather last september?

Here is the day by day recorded weather in Reykjavík in september 2024:

01-09-2024
Partly Cloudy
50°F to 52°F
02-09-2024
Patchy rain nearby
50°F to 52°F
03-09-2024
Clear/Sunny
45°F to 50°F
04-09-2024
Patchy rain nearby
45°F to 49°F
05-09-2024
Patchy rain nearby
50°F to 52°F
06-09-2024
Patchy rain nearby
49°F to 50°F
07-09-2024
Patchy rain nearby
49°F to 50°F
08-09-2024
Patchy rain nearby
45°F to 47°F
09-09-2024
Clear/Sunny
36°F to 43°F
10-09-2024
Partly Cloudy
40°F to 43°F
11-09-2024
Clear/Sunny
36°F to 47°F
12-09-2024
Clear/Sunny
38°F to 50°F
13-09-2024
Overcast
40°F to 49°F
14-09-2024
Partly Cloudy
41°F to 49°F
15-09-2024
Partly Cloudy
41°F to 47°F
16-09-2024
Patchy rain nearby
41°F to 50°F
17-09-2024
Patchy rain nearby
49°F to 50°F
18-09-2024
Light drizzle
45°F to 50°F
19-09-2024
Clear/Sunny
40°F to 47°F
20-09-2024
Cloudy
40°F to 49°F
21-09-2024
Overcast
47°F to 49°F
22-09-2024
Partly Cloudy
47°F to 50°F
23-09-2024
Patchy rain nearby
45°F to 47°F
24-09-2024
Patchy rain nearby
41°F to 47°F
25-09-2024
Clear/Sunny
38°F to 47°F
26-09-2024
Cloudy
36°F to 45°F
27-09-2024
Partly Cloudy
38°F to 43°F
28-09-2024
Cloudy
38°F to 45°F
29-09-2024
Light drizzle
41°F to 45°F
30-09-2024
Clear/Sunny
36°F to 43°F

Map: other cities in Iceland in september

Cities near Reykjavík:

Kopavogur in septemberbad weather
Seltjarnarnes in septemberbad weather
Mosfellsbaer in septemberbad weather
Akranes in septemberbad weather
Vogar in septemberbad weather
Keflavík in septemberbad weather
Suðurnesjabær in septemberbad weather
Hveragerdi in septemberbad weather
Grindavík in septemberbad weather
Thingvellir in septemberbad weather
Borgarnes in septemberbad weather
Selfoss in septemberbad weather
Iceland in september: See full list of cities

Click over cities on the map for information about the weather in september.

Legend: Reykjavík perfect weather good tolerable bad very bad


Weather data for Reykjavík in september:

Weather data for Reykjavík for september are derived from an average of the weather forecast since 2009 in Reykjavík. There is a margin of error and these forecasts are to be considered as general information only. The weather in Reykjavík can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Reykjavík.


Weather in august in Reykjavík
Weather in october in Reykjavík
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