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Climate · Selfoss

Selfoss in December

Cold and wet, as the days shorten.

Typical weather, averaged over 30 years

December in Selfoss is cold: highs near 37°F, lows near 27°F. Rain or snow falls on about four days a week, and the days shorten by 21 minutes from the first week to the last.December in Selfoss is cold: highs near 3°C, lows near -3°C. Rain or snow falls on about four days a week, and the days shorten by 21 minutes from the first week to the last.

High
37°F3°Caverage
Low
27°F-3°Caverage
Wet days
4a week · 59% of days
Daylight
4h 26mon average

Is December a good time to visit Selfoss?

December sits outside Selfoss's mildest months, which run from June to August. Expect cold days and rain or snow on about four days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 37°F in December, against 37°F to 59°F through the year.Highs near 3°C in December, against 3°C to 15°C through the year.

Chance of a wet day

59% of days in December, against 50% to 66% through the year.

Cloud cover

71% cover in December, against 61% to 75% through the year.

Daylight

4h 26m in December, against 4h 26m to 20h 41m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the mildest months. Hover or tap a week for its figures.

Either side

  1. November40°4°low 32°low 0°4 wet days a weekRain on about four days a week.
  2. December37°3°low 27°low -3°4 wet days a weekRain on about four days a week.
  3. January37°3°low 27°low -3°4 wet days a weekRain on about four days a week.

Where Selfoss sits, in December

Atlantic/Reykjavik
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
11:08 AMsets 3:30 PM
Above the sea
95 mlow-lying
Latitude
63.9°Nnorthern hemisphere
Nearest of ours
Hella32 km east

The land around Selfoss, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Iceland in December

high · low · wet days
See December on the planning mapThe whole year in Selfoss

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Selfoss. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (95 m) against the climate model's (15 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (95 m) against the climate model's (15 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.