Longyearbyen weather in September 2021

Get the latest coronavirus (Covid-19) updates for Svalbard with current travel advice and statistics on new cases per 100,000 and vaccine.

  • 1°C maximum daytime temperature in September in Longyearbyen1
    1°C max day temperature
  • 3 hours of sunshine per day
  • 12 days with some rainfall in September in Longyearbyen12
    12 days with some rainfall
  • -3°C minimum night-time temperature in September in Longyearbyen-3
    -3°C min night temperature
  • 14 hours of daylight per day in September in Longyearbyen14
    14 hours of daylight per day
  • No heat & humidity in September in Longyearbyen0
    No heat & humidity
  • 25 mm monthly rainfall in September in Longyearbyen25
    25 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in September in Longyearbyen1
    1 (Low) UV index
  • -1°C sea temperature in September in Longyearbyen-1
    -1°C sea temperature
  • Check out latest hotel deals worldwide with Booking.com
  • Find trending hotels, popular destinations & more
  • Search for specific destinations & dates or by hotel type

Recommended for Svalbard

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

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

The September weather guide for Longyearbyen, Svalbard 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 cold is it in Longyearbyen in September?

Daytime temperatures usually reach 1°C in Longyearbyen in September, falling to -3°C at night.

How sunny is it in Longyearbyen in September?

There are normally 3 hours of bright sunshine each day in Longyearbyen in September - that's 19% of daylight hours.

Is the sea cold around Longyearbyen in September?

The average sea temperature around Longyearbyen in September is -1°C.

Does it rain in Longyearbyen in September?

There are usually 12 days with some rain in Longyearbyen in September and the average monthly rainfall is 25mm. Rain may fall as snow in this month.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Longyearbyen sunrise & sunset times for September 2021

Browse the sunrise and sunset times for Longyearbyen in September 2021. Select a month to view Longyearbyen sunrise & sunset times for the next 12 months.


Date Sunrise times Sunset times
Wednesday, 1st September 2021 03:37 22:09
Wednesday, 15th September 2021 05:38 20:02
Thursday, 30th September 2021 07:27 18:05
  • Combine flights + hotel & save up to 15% on holiday bookings
  • Search for holiday deals for destinations worldwide
  • Filter offers by price, board basis, star rating & accommodation

Related posts

Popular travel offers

Top ^

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