Thingvellir in september: average Weather, Temperature and Climate
Weather in Thingvellir in september 2025
The weather in Thingvellir in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire 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 Thingvellir in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Thingvellir in september.
The climate of Thingvellir in september is bad
The weather in september in Thingvellir is wet (with 5.4in of rainfall over 10 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 3.9in of precipitation over 7 days.
The climate is fairly cool there this month, but it is tolerable when dressing warm. The high seasonal norm is 52°F. In the morning the temperature drops to 47°F. Thus, the mean temperature average on this month of september in Thingvellir is 49°F. Note that these seasonal averages are in contrast with those observed in Thingvellir in september with a maximum record of 61°F in 2010 and a minimum record of 34°F in 2009.
On this month of september, day length in Thingvellir is generally 13:02. The sun rises at 06:48 and sunset is at 19:50.
With a bad climate, september is not the best time to go in that area.
Seasonal average climate and temperature of Thingvellir in september
Check below seasonal norms These datas are set from the weather statements of the past years 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%) | ||||
| 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 | 06:48 | ||||
| Time of sunset | 19:50 | ||||
| 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 Thingvellir in september 2024:
50°F to 52°F
49°F to 50°F
47°F to 50°F
47°F to 52°F
50°F to 54°F
49°F to 52°F
49°F to 50°F
45°F to 49°F
41°F to 43°F
43°F to 47°F
43°F to 47°F
47°F to 49°F
45°F to 49°F
45°F to 47°F
43°F to 47°F
45°F to 50°F
47°F to 52°F
50°F to 52°F
45°F to 49°F
45°F to 50°F
47°F to 50°F
47°F to 49°F
47°F to 49°F
41°F to 47°F
41°F to 45°F
41°F to 43°F
41°F to 45°F
43°F to 47°F
43°F to 45°F
41°F to 43°F
Map: other cities in Iceland in september
Cities near Thingvellir:
| Hveragerdi in september | bad weather |
| Mosfellsbaer in september | bad weather |
| Selfoss in september | bad weather |
| Geysir in september | very bad weather |
| Kopavogur in september | bad weather |
| Reykjavík in september | bad weather |
| Fludir (Secret Lagoon) in september | very bad weather |
| Seltjarnarnes in september | bad weather |
| Akranes in september | bad weather |
| Borgarnes in september | bad weather |
| Gullfoss in september | very bad weather |
| Vogar in september | bad weather |
Click over cities on the map for information about the weather in september.
Thingvellir
perfect weather
good
tolerable
bad
very bad
Weather data for Thingvellir in september:
Weather data for Thingvellir for september are derived from an average of the weather forecast since 2009 in Thingvellir. There is a margin of error and these forecasts are to be considered as general information only. The weather in Thingvellir 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 Thingvellir.