5-day weather forecast Reykjavík 09-05-2026

Weather forecast Reykjavík tomorrow 09.05.2026: light rain shower, temperature from 4 °C to 6 °C.

Precipitation probability 100%. Wind up to 6.89 m/s (gusts 9.28 m/s). Air humidity 82–94%, atmospheric pressure 767–769 mm Hg, UV index up to 1.8.

Sunrise 04:33
Sunset 22:18

Last Quarter59% illuminated
Moonrise 04:26 · Moonset 10:29

Chart

Table

← Fri, May 8

Sat, May 9, 2026

Sun, May 10 →

Forecast from 4 °C to 6 °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)	5	5	4	5	5	6	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6
Precipitation (mm/hr)	0.07	0.01	0.04	0.12	0.21	0.37	0.22	0.22	0.19	0.19	0.53	0.66	0.61	0.37	0.27	0.24	0.24	0.37	0.22	0.11	0.04	0.03	0.02	0.02

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	90	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	79	79	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	81	74	83	82

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)	2.39	1.39	0.5	1.69	4.11	6.39	6.89	6.61	6.39	6.19	6.11	5.61	5.61	5.11	4.11	3.11	2.61	2.5	2.19	1.89	1.81	1.81	2.31	2.39
Wind gust (m/s)	3.14	1.89	0.69	2.36	5.56	8.67	9.28	8.69	8.39	8.11	8.03	7.39	7.5	6.72	5.39	4.08	3.44	3.33	2.94	2.56	2.42	2.44	3.17	3.31
Wind direction (°)	WNW 289°	NW 306°	WSW 248°	SW 231°	W 271°	W 279°	W 270°	W 265°	W 264°	WSW 258°	WSW 256°	WSW 258°	W 264°	W 267°	W 264°	W 264°	W 265°	W 268°	W 280°	WNW 295°	WNW 302°	WNW 298°	NW 307°	NW 311°

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 (%)	83	82	83	83	84	85	86	87	89	90	92	93	93	93	92	91	92	93	94	94	94	94	94	94

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)	769	769	769	768	768	768	768	768	768	768	768	768	768	767	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	0.2	0.3	0.7	1.2	1.4	1.8	1.4	0.8	0.6	0.5	0.4	0.2	0.2	0.1	0	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)	2.6	2.8	2.9	3.1	3.2	3.2	3.1	3.1	3	2.9	2.8	2.6	2.6	2.5	2.4	2.5	2.9	3	2.9	2.9	2.7	2.5	2.3	2.2
PM10 (µg/m³)	7.2	7.5	7.6	7.4	7.2	7.1	7.3	7.3	7.1	6.8	6.3	5.5	4.9	4.3	4.4	4.5	5.1	5.3	5.4	4.9	4.8	5.2	4.8	5
Ozone (O₃) (µg/m³)	90	88	88	88	87	84	86	84	84	85	85	84	82	80	80	79	79	79	79	79	78	77	76	76
NO₂ (µg/m³)	1.5	1.4	1.4	1.4	1.4	1.6	1.8	2.2	2	2	2.1	2.2	2.4	2.5	2.5	2.6	2.8	2.6	2.4	2.2	2.1	2.1	2.1	2
SO₂ (µg/m³)	1.1	1.1	1.1	1.1	1.1	1.1	1.2	1.2	1.2	1.3	1.3	1.7	2.3	2.4	2.3	2.2	2.7	2.1	1.5	1.3	1.2	1.2	1.1	1.1
CO (µg/m³)	143.9	142.9	142.9	142.9	142.9	142.9	141.9	141.9	141.9	141.9	141.9	141.9	144.9	144.9	143.9	145.9	144.9	141.9	142.9	141.9	141.9	141.9	140.9	140.9

← Fri, May 8

Sat, May 9, 2026

Sun, May 10 →

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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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