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5-day weather forecast Reykjavík 21-03-2026

Weather forecast Reykjavík Saturday 21 March 21.03.2026: blizzard, temperature from -2 °C to 2 °C.

Precipitation probability 100%. Wind up to 19.5 m/s (gusts 27.5 m/s). Air humidity 60–95%, atmospheric pressure 749–753 mm Hg, UV index up to 0.9.

Sunrise 07:37
Sunset 19:36
Chart
Table
Type of temperature:
°C
°F
Sat, 21 Mar, 2026
TemperaturePrecipitationCloud coverHumidityPressureWindUV Index
00:00Weather
Blizzard
-1 °C100% (0.41 mm/hr)91%69%749 mm HgWSW 239° 18.5 (27.5) m/s0
01:00Weather
Blizzard
-1 °C100% (0.47 mm/hr)91%69%749 mm HgWSW 240° 19.5 (23.06) m/s0
02:00Weather
Blizzard
-2 °C100% (0.44 mm/hr)95%68%749 mm HgWSW 246° 18.39 (23.56) m/s0
03:00Weather
Blizzard
-1 °C100% (0.4 mm/hr)86%66%749 mm HgWSW 243° 18.69 (25.28) m/s0
04:00Weather
Blizzard
-1 °C100% (0.46 mm/hr)92%68%750 mm HgWSW 244° 18.89 (26.86) m/s0
05:00Weather
Blizzard
-1 °C100% (0.43 mm/hr)83%66%750 mm HgWSW 247° 18.19 (27.06) m/s0
06:00Weather
Blizzard
-1 °C100% (0.32 mm/hr)82%64%751 mm HgWSW 246° 17.81 (27.28) m/s0
07:00Weather
Blizzard
-1 °C100% (0.43 mm/hr)89%64%751 mm HgWSW 245° 17.31 (21.28) m/s0
08:00Weather
Blizzard
0 °C100% (0.29 mm/hr)85%63%752 mm HgWSW 247° 16.81 (21.17) m/s0
09:00Weather
Blizzard
0 °C100% (0.27 mm/hr)92%64%752 mm HgWSW 244° 15.5 (20.11) m/s0.1
10:00Weather
Blizzard
0 °C100% (0.25 mm/hr)98%65%752 mm HgWSW 244° 15.19 (20) m/s0.3
11:00Weather
Blizzard
0 °C100% (0.26 mm/hr)90%63%752 mm HgWSW 245° 14.31 (19.83) m/s0.5
12:00Weather
Blizzard
0 °C100% (0.24 mm/hr)100%66%753 mm HgWSW 246° 12.89 (17.22) m/s0.7
13:00Weather
Blizzard
1 °C100% (0.24 mm/hr)95%63%753 mm HgWSW 244° 11.89 (14.33) m/s0.8
14:00Weather
Blizzard
1 °C100% (0.2 mm/hr)89%64%753 mm HgWSW 238° 10.81 (13.14) m/s0.9
15:00Weather
Blizzard
2 °C100% (0.24 mm/hr)100%60%752 mm HgSW 236° 10.89 (13.61) m/s0.7
16:00Weather
Blizzard
2 °C100% (0.19 mm/hr)100%63%752 mm HgSW 236° 9.5 (12) m/s0.5
17:00Weather
Blizzard
2 °C100% (0.15 mm/hr)100%66%752 mm HgSW 231° 8 (10.53) m/s0.3
18:00Weather
Moderate snow
1 °C100% (0.18 mm/hr)100%69%752 mm HgSW 216° 6 (7.78) m/s0.1
19:00Weather
Moderate or heavy snow showers
1 °C100% (0.18 mm/hr)100%71%752 mm HgSSW 194° 4.31 (5.78) m/s0
20:00Weather
Light snow
1 °C100% (0.06 mm/hr)100%75%751 mm HgSSE 154° 3.61 (5.08) m/s0
21:00Weather
Moderate or heavy snow showers
0 °C100% (0.26 mm/hr)100%88%750 mm HgSE 130° 3.5 (4.67) m/s0
22:00Weather
Heavy snow
0 °C100% (0.31 mm/hr)100%94%749 mm HgESE 111° 3.5 (4.72) m/s0
23:00Weather
Moderate or heavy snow showers
0 °C100% (0.23 mm/hr)100%95%749 mm HgE 89° 3.69 (5.03) m/s0

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.

Learn more about our methodology

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