- Book summer 2021 holidays to green & amber destinations
- Ideal for fully vaccinated travellers & under 18s
- Travel before 31st October 2022 (inclusive)
Reykjavik weather in September 2021
Get the latest coronavirus (Covid-19) updates for Iceland with current travel advice and statistics on new cases per 100,000 and vaccine.
- 99°C max day temperature
- 1818 days with some rainfall
- 44°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 8686 mm of monthly rainfall
- 22 (Low) UV index
- 1010°C sea temperature
Recommended for Iceland
The September weather guide for Reykjavik, Iceland 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.
How warm is it in Reykjavik in September?
Daytime temperatures usually reach 9°C in Reykjavik in September, falling to 4°C at night.
How sunny is it in Reykjavik in September?
There are normally 4 hours of bright sunshine each day in Reykjavik in September - that's 29% of daylight hours.
Is the sea cold around Reykjavik in September?
The average sea temperature around Reykjavik in September is 10°C.
Does it rain in Reykjavik in September?
There are usually 18 days with some rain in Reykjavik in September and the average monthly rainfall is 86mm.
Metric (°C / mm) | Imperial (°F / inches)
Reykjavik sunrise & sunset times for September 2021
Browse the sunrise and sunset times for Reykjavik in September 2021. Select a month to view Reykjavik sunrise & sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st September 2021||06:10||20:43|
|Wednesday, 15th September 2021||06:51||19:53|
|Thursday, 30th September 2021||07:34||18:59|
- Save £200 per booking on Marella Cruises in 2021
- Book cruises to Europe, Mediterranean & Caribbean
- Travel before 31st December 2021 (inclusive)
Cruise deal finder
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.