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)	10	10	9	9	8	9	8	8	8	8	8	8	8	7	7	7	7	8	9	9	10	10	10	10
Precipitation (mm/hr)	0.14	0.12	0.59	0.06	0.37	0.21	0.21	0.24	0.3	0.21	0.2	0.21	0.36	1.97	1.59	1.73	1.9	2.22	2.95	2.63	1.32	0.47	0.27	0.59

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	80	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Rain chance (%)	38	33	66	22	55	45	39	41	44	37	36	36	44	78	77	78	79	81	85	84	77	67	56	70

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)	15.39	17.39	17	17.11	16.31	16.81	16.31	16.39	15.81	15.61	16.19	15.19	14.61	14	13.89	15.11	15.81	17	17.89	15.89	15.39	16.39	16.89	16.89
Wind gust (m/s)	20.81	22.81	22.92	21.72	21.22	21.25	20.69	20.11	20.72	19.72	19.42	18.61	18.33	17.42	17.81	19	21.19	24.31	24.83	22.72	22.19	23.22	23.89	24
Wind direction (°)	SSE 163°	SSE 168°	S 174°	S 177°	S 169°	S 191°	S 188°	S 189°	SSW 195°	SSW 197°	SSW 200°	SSW 201°	SSW 199°	SSW 193°	S 189°	S 181°	SSE 167°	SSE 165°	S 169°	S 187°	SSW 199°	SSW 198°	SSW 204°	SSW 204°

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	81	84	75	82	81	79	80	79	76	76	75	75	87	89	90	90	89	91	92	92	92	91	91

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)	749	748	748	748	748	749	749	750	751	752	752	753	753	753	752	752	751	749	748	747	747	747	747	748

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	0	0	0.2	0.3	0.2	0.1	0.1	0	0	0	0	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.

← Sat, Oct 17

Sun, Oct 18, 2026

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 →

5-day weather forecast Reykjavík Oct 18, 2026

Forecast from 7 °C to 10 °C and precipitation