5-day weather forecast Reykjavík 26-05-2026

Weather forecast Reykjavík today 26.05.2026: patchy rain possible, temperature from 7 °C to 9 °C.

Precipitation probability 100%. Wind up to 7.39 m/s (gusts 9.67 m/s). Air humidity 74–93%, atmospheric pressure 763–767 mm Hg, UV index up to 3.9.

Sunrise 03:38
Sunset 23:11

Waxing Gibbous83% illuminated
Moonrise 17:03 · Moonset 02:50

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Table

Tue, May 26, 2026

Wed, May 27 →

Forecast from 7 °C to 9 °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)	7	7	7	7	7	8	7	8	8	8	9	9	9	9	9	9	9	9	8	8	8	8	8	7
Precipitation (mm/hr)	0.21	0.16	0.12	0.26	0.23	0.25	0.07	0.08	0.05	0.03	0.02	0.06	0.06	0.04	0.03	0.02	0.01	0.11	0.1	0.07	0.11	0.1	0.15	0.13

Cloud cover and precipitation probability

Cloud cover & Rain chance
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 (%)	88	87	87	79	84	100	82	87	84	70	72	70	65	77	75	85	83	56	95	100	86	87	100	95
Rain chance (%)	100	100	100	100	100	100	100	100	68	85	66	100	100	67	77	80	87	100	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)	4.11	4.31	4.5	4.81	4.69	4.39	3.89	3.89	3.61	3.31	3.11	3	2.81	3.11	3.69	5.11	5.81	6.19	7	6.89	7	6.31	7	7.39
Wind gust (m/s)	6.22	6.44	6.75	7.22	7.19	6.53	5.36	5.08	4.58	4.14	3.89	3.78	3.58	4	4.64	6.22	6.89	7.39	8.44	8.61	8.97	8.14	9	9.67
Wind direction (°)	SW 233°	SW 233°	SW 223°	SW 226°	SW 228°	SW 224°	SW 215°	SSW 211°	SSW 212°	SW 219°	SW 229°	SW 232°	SW 235°	WSW 245°	WSW 255°	WSW 256°	WSW 243°	WSW 245°	WSW 237°	SW 226°	SW 222°	SSW 210°	SSW 208°	SSW 211°

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 (%)	89	90	90	91	91	93	90	87	82	79	77	76	75	74	74	76	77	81	81	78	78	79	82	81

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)	763	764	764	764	764	764	764	765	765	766	766	766	766	766	767	767	767	767	767	767	767	767	767	767

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	0.2	0.5	0.9	1.5	2.2	2.9	3.3	3.8	3.9	3.6	3	2.1	1.3	0.4	0.1	0.1	0	0

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)	3.6	3.3	3.5	3.5	3.8	5.3	6.3	4.9	3.8	3.5	3.3	3.3	3.4	3.7	3.7	4.2	3.7	4.1	4.9	4.3	4.3	4.2	4.8	4.7
PM10 (µg/m³)	8.7	7.6	7.2	7.5	9.5	9.6	9.8	10.6	11	10.5	9.2	9.1	8.7	7.5	8.7	8.5	8.9	8.7	10.6	12	13	12.8	12.7	9.9
Ozone (O₃) (µg/m³)	69	66	63	62	62	61	60	60	62	63	64	64	64	65	65	66	64	64	65	68	76	77	79	78
NO₂ (µg/m³)	2.5	2.8	2.9	2.9	3	3.1	3.3	3.1	2.9	2.6	2.5	2.2	2	1.9	1.9	1.8	1.8	1.8	1.9	1.9	1.9	2	2.1	2.1
SO₂ (µg/m³)	1.8	2.1	2.3	2.3	2.6	3.2	3.8	4.8	4.7	4.2	4.3	3.8	3.7	3.7	3.2	2.2	1.8	1.7	1.7	1.6	1.8	2.5	2.8	3.3
CO (µg/m³)	121.9	123.9	126.9	130.9	131.9	131.9	133.9	136.9	136.9	135.9	133.9	131.9	129.9	127.9	126.9	124.9	124.9	125.9	121.9	121.9	121.9	123.9	124.9	124.9

Tue, May 26, 2026

Wed, May 27 →

Frequently asked questions about the weather in Reykjavík

Today in Reykjavík the temperature ranges from 7 °C to 9 °C, wind up to 7.39 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 7.39 m/s with gusts up to 9.67 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Reykjavík today ranges from 74% to 93%. View the humidity chart above for hourly details.

The UV index in Reykjavík today reaches up to 3.9. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Reykjavík today ranges from 763 to 767 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.

Reykjavík on the map

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 →