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)	4.19	4.11	3.89	3.61	3.19	3.5	3.61	3.69	3.89	3.89	3.69	3.69	3.81	4	4.39	4.81	5.5	5.39	5.81	5.69	5.81	5.89	5.89	5.69
Wind gust (m/s)	7.19	6.97	6.69	6.17	5.47	5.86	5.72	5.25	5.11	4.86	4.67	4.75	4.86	5.25	5.92	6.72	7.81	7.92	8.28	7.89	7.86	7.75	8.03	8.11
Wind direction (°)	NNE 31°	NNE 33°	NE 36°	NE 43°	NE 46°	NE 46°	NE 42°	NE 36°	NNE 31°	NNE 32°	NNE 32°	NNE 29°	NNE 22°	NNE 22°	NNE 14°	N 6°	N 7°	NNE 15°	NNE 25°	NNE 25°	NNE 24°	NNE 30°	NNE 33°	NE 36°

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 (%)	69	68	69	70	69	69	69	67	63	60	57	56	54	52	51	53	55	57	58	59	61	66	69	72

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)	755	755	755	755	755	755	755	756	756	756	757	757	757	757	757	756	756	756	757	757	757	757	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	0.1	0.4	0.7	1.3	2.1	2.8	3.4	3.7	3.8	3.2	2.3	1.5	1	0.6	0.3	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)	2.4	2.4	2.6	2.4	2.6	3.2	3.4	3.9	4.4	4.3	3.6	3.1	2.8	2.5	2.4	2.8	2.6	2.6	2.4	2.7	2.8	2.7	3.2	3.5
PM10 (µg/m³)	3.1	3.3	3.4	3.4	3.1	3.4	3.8	4.3	5.7	6.4	5.6	4.4	4	4	3.8	3.7	3.6	3.6	3.6	4.3	4.8	4.7	4.7	5.2
Ozone (O₃) (µg/m³)	50	46	42	40	38	39	39	41	45	48	50	52	56	57	62	63	62	63	65	60	58	56	52.8	47.5
NO₂ (µg/m³)	4.1	4	4	4	4.1	4.2	4	3.7	4.6	4.3	3.1	2.6	2.2	1.8	1.4	1.2	1.1	1.1	1.2	1.4	1.3	1.5	2.3	2.8
SO₂ (µg/m³)	2.3	1.8	4.3	7.6	10.8	12.6	11.2	12.5	9.8	9	10	5.8	3	2.1	1.5	1.1	0.8	0.9	1.1	1.6	2.6	2.5	7.2	21.2
CO (µg/m³)	122	124	135	138	141	148	150	151	155	157	150	144	131	120	118	117	116	117	115	115	119	123	117.8	112

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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.

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5-day weather forecast Reykjavík 27-07-2026

Forecast from 10 °C to 15 °C and precipitation

Cloud cover and precipitation probability

Wind speed and direction