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5-day weather forecast Reykjavík 18-03-2026

Weather forecast Reykjavík today 18.03.2026: sunny, temperature from -2 °C to 2 °C.

Precipitation probability 100%. Wind up to 9.19 m/s (gusts 12.33 m/s). Air humidity 63–92%, atmospheric pressure 746–763 mm Hg, UV index up to 1.

Sunrise 07:37
Sunset 19:36
Chart
Table
Type of temperature:
°C
°F
Wed, 18 Mar, 2026
TemperaturePrecipitationCloud coverHumidityPressureWindUV Index
00:00Weather
Clear
-1 °C0% 13%76%746 mm HgN 1° 6.89 (9.14) m/s0
01:00Weather
Clear
-1 °C0% 11%76%747 mm HgN 358° 6.81 (9.06) m/s0
02:00Weather
Clear
-1 °C0% 6%76%749 mm HgN 0° 6.89 (9.17) m/s0
03:00Weather
Clear
-1 °C0% 8%76%749 mm HgN 358° 6.61 (8.92) m/s0
04:00Weather
Partly cloudy
0 °C0% 75%74%749 mm HgN 354° 6.69 (9.19) m/s0
05:00Weather
Clear
-1 °C0% 12%74%752 mm HgN 354° 6.89 (9.25) m/s0
06:00Weather
Clear
-1 °C0% 12%74%753 mm HgN 356° 6.5 (8.81) m/s0
07:00Weather
Clear
-2 °C0% 10%74%755 mm HgN 2° 5.89 (8.22) m/s0
08:00Weather
Sunny
-2 °C0% 12%75%756 mm HgN 2° 5.5 (7.72) m/s0
09:00Weather
Sunny
-1 °C0% 12%74%758 mm HgN 2° 5.81 (7.72) m/s0.2
10:00Weather
Sunny
-1 °C0% 8%73%758 mm HgN 10° 5.39 (6.78) m/s0.3
11:00Weather
Sunny
-1 °C0% 8%71%759 mm HgN 8° 4.69 (5.81) m/s0.6
12:00Weather
Sunny
0 °C0% 8%68%760 mm HgN 3° 4 (4.92) m/s0.8
13:00Weather
Sunny
0 °C0% 8%66%761 mm HgN 359° 3.39 (4.14) m/s1
14:00Weather
Sunny
0 °C0% 9%65%761 mm HgNNW 338° 3.39 (4.17) m/s1
15:00Weather
Overcast
0 °C0% 100%64%761 mm HgNNW 348° 2.31 (2.92) m/s0.7
16:00Weather
Overcast
0 °C0% 100%63%762 mm HgNW 325° 1.81 (2.31) m/s0.5
17:00Weather
Partly cloudy
0 °C0% 49%63%762 mm HgW 272° 1.81 (2.33) m/s0.3
18:00Weather
Partly cloudy
0 °C0% 49%64%763 mm HgSW 228° 1.69 (2.22) m/s0.1
19:00Weather
Partly cloudy
0 °C0% 54%67%763 mm HgS 171° 2.19 (3.03) m/s0
20:00Weather
Partly cloudy
1 °C0% 61%69%763 mm HgSSE 156° 3.89 (5.53) m/s0
21:00Weather
Overcast
1 °C0% 100%70%762 mm HgSE 141° 5.19 (7.67) m/s0
22:00Weather
Heavy snow
2 °C100% (0.3 mm/hr)100%71%762 mm HgSSE 150° 6.81 (9.5) m/s0
23:00Weather
Blizzard
1 °C100% (0.94 mm/hr)100%92%761 mm HgSSE 152° 9.19 (12.33) m/s0
Wed, 18 Mar, 2026

Frequently asked questions about the weather in Reykjavík

Today in Reykjavík the temperature ranges from -2 °C to 2 °C, wind up to 9.19 m/s. Check the detailed hourly forecast above for more information.

The precipitation probability in Reykjavík today is 100%. View the full multi-day forecast above to see the rain chances for each upcoming day.

The wind speed in Reykjavík today reaches up to 9.19 m/s with gusts up to 12.33 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Reykjavík today ranges from 63% to 92%. View the humidity chart above for hourly details.

The UV index in Reykjavík today reaches up to 1. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Reykjavík today ranges from 746 to 763 mm Hg. View the pressure chart above for hourly readings.

Cloud cover in Reykjavík today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.

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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