5-day weather forecast Reykjavík 18-06-2026

Weather forecast Reykjavík Thursday, June 18 18.06.2026: overcast, temperature from 9 °C to 12 °C.

Precipitation probability 16%. Wind up to 4.69 m/s (gusts 5.94 m/s). Air humidity 51–69%, atmospheric pressure 751–753 mm Hg.

Sunrise 02:55
Sunset 00:02

Waxing Crescent19% illuminated
Moonrise 07:07 · Moonset 01:46

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Table

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Thu, Jun 18, 2026

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Forecast from 9 °C to 12 °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)	10	10	10	10	10	9	9	9	9	10	11	11	12	12	12	12	12	12	12	12	11	11	10	10
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.01	0.01	0	0	0

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	77	95	100	100	96	68	51	48	49	46	73	100	100	100	100	100	100	83	100	100	100	100
Rain chance (%)	16	16	12	16	17	16	15	10	7	6	6	5	8	13	13	13	13	14	14	12	16	17	18	18

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)	2.61	2.69	2.5	1.5	2	2.5	3.61	4.61	4.69	4.19	3.89	3.5	3.31	2.89	2.19	1.89	2.11	3.19	3.39	3	2.81	3.5	4.5	4
Wind gust (m/s)	3.58	3.64	3.39	2.03	2.67	3.28	4.64	5.81	5.86	5.14	4.72	4.28	4.14	3.75	2.83	2.47	2.72	4.17	4.44	3.94	3.78	4.72	5.94	5.22
Wind direction (°)	ENE 74°	E 89°	E 93°	ENE 73°	NE 45°	NNE 23°	N 3°	N 3°	NNE 17°	NNE 28°	NE 38°	NE 39°	NE 40°	NE 47°	NE 40°	NNE 30°	NE 48°	E 85°	E 90°	E 90°	ESE 110°	SE 124°	SE 138°	SE 141°

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 (%)	63	64	65	65	65	64	62	61	58	55	52	51	52	54	54	53	54	56	58	61	64	65	69	69

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)	753	752	752	752	752	752	752	752	752	752	752	751	751	751	751	751	751	751	751	751	752	752	752	752

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	0	0	0	0	0	0	0	0	0	0	0	0

← Wed, Jun 17

Thu, Jun 18, 2026

Fri, Jun 19 →

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.

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