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Jan Mayen weather in September 2025
Expect 3°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Jan Mayen in September. Check more long-term weather averages for Jan Mayen in September before you book your next holiday to Jan Mayen in 2025/2026.
- 33°C max day temperature
- 2 hours of sunshine per day
- 1919 days with some rainfall
- -1-1°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 8888 mm of monthly rainfall
- 11 (Low) UV index
- 55°C sea temperature
More about Jan Mayen
Jan Mayen by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
The September weather guide for Jan Mayen shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
How cold is it in Jan Mayen in September?
Daytime temperatures usually reach 3°C in Jan Mayen in September, falling to -1°C at night.
How sunny is it in Jan Mayen in September?
There are normally 2 hours of bright sunshine each day in Jan Mayen in September - that's 14% of daylight hours.
Is the sea cold around Jan Mayen in September?
The average sea temperature around Jan Mayen in September is 5°C.
Does it rain in Jan Mayen in September?
There are usually 19 days with some rain in Jan Mayen in September and the average monthly rainfall is 88mm. Rain may fall as snow in this month.
Jan Mayen September sunrise & sunset times
Browse the sunrise and sunset times for Jan Mayen in September 2025. Select a month to view Jan Mayen sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:45 | 21:21 |
Monday, 15th September 2025 | 06:46 | 20:12 |
Tuesday, 30th September 2025 | 07:49 | 18:59 |
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