Reykjavik weather in September 2021

Get the latest coronavirus (COVID-19) updates for Iceland with current travel advice, statistics and online resources.

  • 9°C maximum daytime temperature in September in Reykjavik9
    9°C max day temperature
  • 4 hours of sunshine per day
  • 18 days with some rainfall in September in Reykjavik18
    18 days with some rainfall
  • 4°C minimum night-time temperature in September in Reykjavik4
    4°C min night temperature
  • 13 hours of daylight per day in September in Reykjavik13
    13 hours of daylight per day
  • No heat & humidity in September in Reykjavik0
    No heat & humidity
  • 86 mm monthly rainfall in September in Reykjavik86
    86 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in September in Reykjavik2
    2 (Low) UV index
  • 10°C sea temperature in September in Reykjavik10
    10°C sea temperature

Recommended for Iceland

  • Top deals & discounts
  • Reykjavik weather overview
  • Reykjavik climate averages by month
  • More destinations
  • Best time to go to Reykjavik
  • Reykjavik 5-day weather forecast

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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.

  • Search for cheap car hire prices from top car hire providers
  • Filter car hire deals by price, car type, brand & more
  • Brands include Avis, Enterprise, Europcar, Hertz, Sixt & Thifty

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)

Back to top

Discover more about Reykjavik

Reykjavik sunrise & sunset times for September 2021

Browse the sunrise & sunset times for Reykjavik in September 2021. Select a month to view Reykjavik sunrise & sunset times for the next twelve 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
  • Latest flight offers and special deals from Lufthansa
  • Flights to Germany (including Frankfurt & Munich)
  • Plus destinations across Europe and around the world

Where is warm in Iceland in September for 2021/2022?

Below are average maximum temperatures at popular destinations in Iceland in September. Select a destination to see more weather parameters.

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.