5-day weather forecast Oslo 18-05-2026

Weather forecast Oslo tomorrow 18.05.2026: patchy rain possible, temperature from 3 °C to 14 °C.

Precipitation probability 74%. Wind up to 2.81 m/s (gusts 3.22 m/s). Air humidity 56–97%, atmospheric pressure 762–764 mm Hg, UV index up to 3.1.

Sunrise 04:33
Sunset 21:55

Waxing Crescent2% illuminated
Moonrise 04:13 · Moonset 00:25

Chart

Table

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

Forecast from 3 °C to 14 °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)	3	3	3	3	3	3	6	7	8	10	12	13	14	13	13	14	14	14	14	13	11	9	8	7
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0.04	0.02	0.01	0.03	0.07	0.02	0.03	0.25	0.07	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 (%)	9	25	100	100	100	99	100	73	41	29	55	67	100	100	75	100	64	60	100	58	63	36	82	71
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	74	65	62	73	100	89	71	100	100	0	0	0

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)	1.39	0.89	0.81	0.89	1	1.11	1	0.89	1.19	1.61	2	2.19	2.5	2.81	2.39	2.31	2.31	2	1.69	1.39	0.89	0.5	0.89	1.31
Wind gust (m/s)	2.94	1.89	1.67	1.89	2.11	2.31	1.42	1.06	1.39	1.83	2.31	2.53	2.89	3.22	2.75	2.64	2.64	2.31	1.97	1.67	1.42	1.06	1.89	2.72
Wind direction (°)	SSE 165°	SE 140°	E 97°	ENE 73°	ENE 67°	ENE 71°	E 83°	ENE 78°	E 82°	ESE 107°	SE 125°	SE 136°	SSE 150°	SSE 165°	SSE 155°	SE 130°	SE 140°	SSE 160°	SSE 152°	ESE 123°	E 98°	NE 43°	NNE 24°	NNE 19°

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 (%)	95	96	97	97	97	97	90	85	77	68	62	56	56	60	61	57	59	61	62	73	79	82	86	87

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)	762	762	763	763	763	763	764	764	764	764	764	764	764	764	764	764	764	764	764	764	764	764	764	764

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	0.2	0.5	1.1	2	2.9	3.1	2.1	2.2	2.6	2.1	1.4	0.9	0.4	0.2	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)	6.4	6.7	6.6	6.2	6.2	6.6	6.6	6.7	7	8	8.1	7.2	6.5	5.8	6.2	6	6.2	6	6.1	6.3	6.4	7	6.7	7.7
PM10 (µg/m³)	10.8	11.9	11.5	11.3	10.7	11	10.4	9.9	10.2	12	12.6	10.9	10	9.2	9.5	9.6	9.4	9.4	9.5	10.1	10.3	11.3	10.6	10.9
Ozone (O₃) (µg/m³)	74	71	70	69	66	63	66	62	63	71	73	78	76	74	75	80	85	88	90	91	91	90	86	80
NO₂ (µg/m³)	8	9.1	10.3	10.7	11.7	12.3	12.6	13.2	13.7	12.8	12.4	11.3	10.2	9.7	8.4	7.7	7.4	8	9	8.9	9.8	11.1	11.9	10.7
SO₂ (µg/m³)	2	1.8	1.8	1.8	1.9	2	1.9	1.8	1.8	2	2	1.9	1.8	1.7	1.8	1.7	1.7	1.7	1.7	1.6	1.7	1.8	2	2
CO (µg/m³)	167.9	174.9	177.9	175.9	179.9	177.9	173.9	169.9	169.9	176.9	186.9	179.9	177.9	169.9	164.9	166.9	169.9	169.9	164.9	160.9	166.9	171.9	175.9	182.9

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

Oslo 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 →