Reykjavík in september: average Weather, Temperature and Climate
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
Cloudy
30% of time
23%
19%
14%
Weather at 12pm
50°F
Cloudy
34% of time
20%
18%
15%
Weather at 6pm
50°F
Moderate rain at times
32% of time
24%
19%
13%
Weather at 3am
47°F
32%
19%
17%
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:
50°F to 52°F
50°F to 52°F
45°F to 50°F
45°F to 49°F
50°F to 52°F
49°F to 50°F
49°F to 50°F
45°F to 47°F
36°F to 43°F
40°F to 43°F
36°F to 47°F
38°F to 50°F
40°F to 49°F
41°F to 49°F
41°F to 47°F
41°F to 50°F
49°F to 50°F
45°F to 50°F
40°F to 47°F
40°F to 49°F
47°F to 49°F
47°F to 50°F
45°F to 47°F
41°F to 47°F
38°F to 47°F
36°F to 45°F
38°F to 43°F
38°F to 45°F
41°F to 45°F
36°F to 43°F
Map: other cities in Iceland in september
Cities near Reykjavík:
| Kopavogur in september | bad weather |
| Seltjarnarnes in september | bad weather |
| Mosfellsbaer in september | bad weather |
| Akranes in september | bad weather |
| Vogar in september | bad weather |
| Keflavík in september | bad weather |
| Suðurnesjabær in september | bad weather |
| Hveragerdi in september | bad weather |
| Grindavík in september | bad weather |
| Thingvellir in september | bad weather |
| Borgarnes in september | bad weather |
| Selfoss in september | bad weather |
Click over cities on the map for information about the weather in september.
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.