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Climate · Selfoss

Selfoss in August

Cool and wet, as the days shorten.

Typical weather, averaged over 30 years

August in Selfoss is cool: highs near 59°F, lows near 47°F. Rain falls on about four days a week, and the days shorten by 3 hours 8 minutes from the first week to the last.August in Selfoss is cool: highs near 15°C, lows near 8°C. Rain falls on about four days a week, and the days shorten by 3 hours 8 minutes from the first week to the last.

High
59°F15°Caverage
Low
47°F8°Caverage
Wet days
4a week · 53% of days
Daylight
16h 12mon average

Is August a good time to visit Selfoss?

Yes. August is one of Selfoss's mildest months (June to August).

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 August sits in the year

week by week

Temperature

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

Chance of a wet day

53% of days in August, against 50% to 66% through the year.

Cloud cover

65% cover in August, against 61% to 75% through the year.

Daylight

16h 12m in August, against 4h 26m to 20h 41m through the year.

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

Either side

  1. July59°15°low 47°low 8°4 wet days a weekRain on about four days a week.
  2. August59°15°low 47°low 8°4 wet days a weekRain on about four days a week.
  3. September53°12°low 43°low 6°5 wet days a weekRain on about five days a week.

Where Selfoss sits, in August

Atlantic/Reykjavik
this place
typical high in August 40°F4°C95°F35°C
Sunrise, mid-August
5:14 AMsets 9:44 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 August, 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 August

high · low · wet days
See August 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.