Mývatn in september: average Weather, Temperature and Climate
Weather in Mývatn in september 2025
The weather in Mývatn in september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
very bad weather 186.4cm
Weather at 6am
34°F
Moderate rain at times
20% of time
19%
16%
15%
Weather at 12pm
40°F
Moderate rain at times
27% of time
24%
16%
14%
Weather at 6pm
47°F
Moderate rain at times
34% of time
18%
17%
13%
Weather at 3am
34°F
25%
19%
17%
13%
Evolution of daily average temperature and precipitation in Mývatn in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Mývatn in september.
The climate of Mývatn in september is very bad
the weather in Mývatn in september is wet (with 8.2in of rainfall over 11 days). The weather is better from the previous month since in august it receives an average of 6.5in of precipitation over 10 days.
The climate is relatively fresh around this city the month of september, but it is tolerable by dressing cosy. Temperatures are up to 49°F. In the morning the temperature drops to 34°F. Thus, the mean temperature average on this month of september in Mývatn is 41°F. Note that these seasonal averages are in contrast with those observed in Mývatn in the month of september with a maximum record of 67°F in 2021 and a minimum record of 11°F in 2020. You need to prepare to have about 16 days with temperatures down below 32°F, or 53% of time.
On this month of september, day length in Mývatn is generally 13:06. The sun rises at 06:29 and sets at 19:35.
Seasonal average climate and temperature of Mývatn 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 | 41°F | ||||
| Highest temperature | 49°F | ||||
| Lowest temperature | 34°F | ||||
| Highest record temperature | 67°F (2021) | ||||
| Lowest record temperature | 11°F (2020) | ||||
| Number of days at +65°F | 0 day(s) (0%) | ||||
| Number of days at -32°F | 16 day(s) (53%) | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 27°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 8.2in | ||||
| Number of days with rainfall | 11 day(s) (37%) | ||||
| Record daily rainfall | 3.9in (2012) | ||||
| Snowfall | 186.4cm | ||||
| Other climate data | |||||
| Humidity | 92% | ||||
| Visibility | 7.85km | ||||
| Cloud cover | 65% | ||||
| UV index | 2 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:29 | ||||
| Time of sunset | 19:35 | ||||
| Length of day | 13:06 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last september?
Here is the day by day recorded weather in Mývatn in september 2024:
45°F to 58°F
38°F to 54°F
38°F to 49°F
32°F to 54°F
50°F to 58°F
40°F to 54°F
43°F to 56°F
31°F to 43°F
27°F to 38°F
27°F to 36°F
23°F to 36°F
13°F to 36°F
23°F to 43°F
29°F to 38°F
29°F to 38°F
25°F to 45°F
38°F to 49°F
32°F to 52°F
29°F to 47°F
31°F to 49°F
34°F to 49°F
32°F to 41°F
27°F to 43°F
31°F to 38°F
25°F to 36°F
20°F to 36°F
25°F to 36°F
20°F to 32°F
27°F to 40°F
25°F to 38°F
Map: other cities in Iceland in september
Cities near Mývatn:
| Dettifoss in september | very bad weather |
| Asbyrgi Canyon in september | bad weather |
| Húsavík in september | very bad weather |
| Akureyri in september | very bad weather |
| Askja in september | very bad weather |
| Dalvik in september | very bad weather |
| Þórshöfn in september | bad weather |
| Raufarhöfn in september | bad weather |
| Siglufjördur in september | very bad weather |
| Miðgarðar in september | bad weather |
| Egilsstaðir in september | very bad weather |
| Seyðisfjörður in september | very bad weather |
Click over cities on the map for information about the weather in september.
Mývatn
perfect weather
good
tolerable
bad
very bad
Weather data for Mývatn in september:
Weather data for Mývatn for september are derived from an average of the weather forecast since 2009 in Mývatn. There is a margin of error and these forecasts are to be considered as general information only. The weather in Mývatn 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 Mývatn.