5-day weather forecast Reykjavík 28-05-2026

Weather forecast Reykjavík Thursday, May 28 28.05.2026: patchy rain possible, temperature from 7 °C to 9 °C.

Precipitation probability 100%. Wind up to 3.5 m/s (gusts 4.86 m/s). Air humidity 72–82%, atmospheric pressure 758–765 mm Hg, UV index up to 2.1.

Sunrise 03:32
Sunset 23:17

Waxing Gibbous96% illuminated
Moonrise 20:42 · Moonset 02:30

Chart

Table

← Wed, May 27

Thu, May 28, 2026

Fri, May 29 →

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	7	7	8	8	8	8	8	8	9	9	9	9	9	9	9	9	9	8	8
Precipitation (mm/hr)	0.06	0.09	0.08	0.05	0.04	0.02	0.01	0	0.01	0.01	0	0	0	0	0	0	0	0	0	0	0.01	0.02	0.01	0.03

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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Rain chance (%)	100	100	100	100	63	66	86	0	80	83	0	0	0	0	0	0	0	0	0	0	66	74	64	86

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)	3.11	3.11	2.81	2.31	2.11	2	2	2.19	2.19	1.39	0.89	1	1.11	1.31	1.89	2.61	2.31	1.39	0.61	0.69	1.11	2	3.19	3.5
Wind gust (m/s)	4.08	4.11	3.75	3.08	2.83	2.67	2.64	2.86	2.83	1.78	1.17	1.31	1.47	1.69	2.56	3.47	3.14	1.97	0.86	1	1.56	2.78	4.42	4.86
Wind direction (°)	S 183°	SSE 167°	SSE 160°	SSE 148°	SE 135°	ESE 122°	ESE 113°	ESE 115°	ESE 121°	ESE 109°	ENE 61°	NNE 17°	NNW 345°	NW 323°	NW 321°	NNW 327°	NNW 332°	NNW 340°	NE 34°	ENE 65°	NE 37°	NNE 14°	NNE 13°	NNE 18°

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 (%)	78	80	81	81	81	82	81	79	78	76	74	73	73	72	73	75	75	75	75	75	75	76	77	78

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)	765	765	764	764	764	764	764	764	763	763	763	762	762	762	761	761	761	761	760	760	759	759	758	758

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	0.4	0.8	1.1	1.2	1.5	1.6	1.8	1.9	2	2.1	1.6	1.1	0.7	0.4	0.2	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)	4.2	4.6	4.8	4.8	4.5	4.4	4.3	4	3.7	3.3	2.7	2.2	1.9	1.7	1.6	1.5	1.5	1.5	1.5	1.5	1.4	1.3	1.3	1.3
PM10 (µg/m³)	6.4	7.2	7.6	7.5	7	6.8	6.4	5.9	5.3	4.6	3.7	2.9	2.5	2.1	1.9	1.8	1.8	1.8	1.8	1.8	1.5	1.4	1.4	1.4
Ozone (O₃) (µg/m³)	72.8	77	76	75	74	74	73	71	69	67	66	65	64	63	62	61	60	58	57	56	54	53	52	51
NO₂ (µg/m³)	2.7	2.2	2.5	2.7	2.8	2.8	2.8	2.7	2.6	2.5	2.5	2.4	2.4	2.4	2.3	2.3	2.4	2.5	2.6	2.8	2.9	3.1	3.2	3.3
SO₂ (µg/m³)	13	23.1	31.1	35.4	32.9	26.7	21.4	18.5	16.5	14.9	13.7	12.9	12.4	12.1	12.1	12.1	11.9	11.7	12	13	14.4	16.2	18.9	22
CO (µg/m³)	139.4	140.9	144.9	146.9	143.9	139.9	135.9	134.9	135.9	135.9	133.9	131.9	128.9	126.9	124.9	122.9	120.9	119.9	118.9	118.9	119.9	119.9	118.9	116.9

← Wed, May 27

Thu, May 28, 2026

Fri, May 29 →

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 →