5-day weather forecast Helsinki 29-05-2026

Weather forecast Helsinki tomorrow 29.05.2026: sunny, temperature from 8 °C to 17 °C.

No precipitation expected. Wind up to 5.89 m/s (gusts 10.03 m/s). Air humidity 35–77%, atmospheric pressure 758–760 mm Hg, UV index up to 4.

Sunrise 04:12
Sunset 22:23

Full Moon99% illuminated
Moonrise 21:23 · Moonset 02:49

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Table

← Thu, May 28

Fri, May 29, 2026

Sat, May 30 →

Forecast from 8 °C to 17 °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	9	8	8	8	8	10	11	12	13	14	14	15	16	16	16	17	16	14	12	10	9	9
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	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 (%)	8	5	6	7	9	10	15	12	8	16	45	100	100	22	30	12	10	8	11	9	13	32	47	63
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	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)	5.81	5.81	5.5	5.61	5.89	5.61	5.31	5.19	5.31	5.5	5.5	5.31	5.61	5.81	5.81	5.69	5.61	5.11	3.5	3.31	3.69	3.31	2.11	2.39
Wind gust (m/s)	10.03	9.94	9.33	9.39	9.72	9.17	8.25	7.44	7.28	7.61	7.67	7.58	8.17	8.33	8.72	8.75	8.83	8.33	5.75	5.44	6.22	5.53	4	4.67
Wind direction (°)	NW 322°	NW 318°	NW 318°	NW 317°	NW 318°	NW 319°	NW 324°	NW 323°	NNW 328°	NNW 328°	NW 325°	NNW 330°	NNW 335°	NNW 341°	NNW 348°	N 354°	N 355°	N 4°	NE 42°	ESE 118°	SE 139°	SSE 153°	S 171°	S 181°

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 (%)	58	60	62	63	63	63	61	57	52	49	46	44	42	38	37	35	35	36	41	51	62	72	77	74

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)	759	759	759	759	759	759	759	759	759	759	759	758	758	758	758	758	758	758	758	758	759	760	760	760

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	0.2	0.5	1	1.7	2.7	3.4	4	3.9	2.7	2.5	1.6	1.7	1	0.5	0.2	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)	2.6	2.6	2.6	2.4	2.4	2.4	2.5	2.5	2.6	2.7	2.8	3	3	3	3	3	3.2	3.3	3.4	3.2	3.1	3.2	3.3	3.2
PM10 (µg/m³)	3.5	3.6	3.5	3.5	3.4	3.3	3.2	3.1	3.2	3.4	3.6	4.1	4.3	4.4	4.3	4.2	4.2	4.7	4.6	4.4	4.8	5.3	4.6	4.5
Ozone (O₃) (µg/m³)	71	66	64	63	63	62	62	61	62	62	63	64	68	69	70	73	72	70	69	69	69	65	69	65
NO₂ (µg/m³)	3.8	4.1	4.5	3.9	3.8	3.5	3.4	3.3	3.4	3.5	4	4.1	4.4	4.1	3.8	3.6	3.6	3.9	4.1	4.7	5.9	7.3	5.3	6.5
SO₂ (µg/m³)	1.4	1.4	1.3	1.3	1.2	1.2	1.2	1.2	1.2	1.2	1.4	1.5	1.5	1.5	1.4	1.3	1.3	1.3	1.3	1.3	1.3	1.4	1.5	1.6
CO (µg/m³)	123.9	123.9	124.9	123.9	121.9	120.9	119.9	118.9	119.9	119.9	120.9	129.9	127.9	129.9	130.9	129.9	129.9	129.9	128.9	130.9	135.9	138.9	133.9	129.9

← Thu, May 28

Fri, May 29, 2026

Sat, May 30 →

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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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