5-day weather forecast Reykjavík 28-03-2026

Weather forecast Reykjavík tomorrow 28.03.2026: sunny, temperature from -5 °C to 4 °C.

Precipitation probability 76%. Wind up to 21.5 m/s (gusts 28.69 m/s). Air humidity 60–96%, atmospheric pressure 736–761 mm Hg, UV index up to 1.1.

Sunrise 07:05
Sunset 20:03

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← Fri, 27 Mar

Sat, 28 Mar, 2026

Sun, 29 Mar →

Forecast from -5 °C to 4 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	-2	-2	-2	-2	-2	-4	-5	-5	-4	-3	-2	-2	-2	-2	-1	-1	0	0	1	2	3	3	3	4
Precipitation (mm/hr)	0.04	0.03	0.01	0	0	0	0	0	0	0	0	0	0	0	0.01	0.21	0.7	1.21	1.63	3.48	4.01	5.39	6.35	0.79

Cloud cover

Cloud cover
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	100	100	59	16	2	0	3	6	13	28	30	42	49	51	62	100	81	83	100	100	100	100	100	100

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	11.19	9.19	7.81	6.69	4.89	2.89	1.5	3.11	4.31	4.81	5.11	6.19	7.81	9.31	11.39	13.61	15.39	16.69	18.69	19.81	20.39	21.5	19.61	7.61
Wind gust (m/s)	13.78	11.67	10.19	9.22	7.25	5.14	2.94	5.94	7.72	7.47	7	7.92	9.72	11.61	14.42	17.03	19.36	21.39	24.22	26.33	27.47	28.69	26.92	10.67

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	70	68	63	61	61	62	63	65	68	65	62	60	63	63	64	75	84	89	94	96	96	96	96	89

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	758	758	759	760	761	761	761	761	761	761	761	760	759	758	757	755	752	749	746	744	741	738	736	736

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.1	0.3	0.5	0.8	1.1	1	1	0.8	0.4	0.3	0.2	0.1	0	0	0	0

← Fri, 27 Mar

Sat, 28 Mar, 2026

Sun, 29 Mar →

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 →