5-day weather forecast Helsinki 30-05-2026

Weather forecast Helsinki Saturday, May 30 30.05.2026: sunny, temperature from 8 °C to 18 °C.

No precipitation expected. Wind up to 4.11 m/s (gusts 7.47 m/s). Air humidity 38–82%, atmospheric pressure 758–760 mm Hg, UV index up to 3.

Sunrise 04:10
Sunset 22:25

Full Moon100% illuminated
Moonrise 23:01 · Moonset 02:53

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Table

← Fri, May 29

Sat, May 30, 2026

Sun, May 31 →

Forecast from 8 °C to 18 °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)	9	10	10	10	9	8	9	10	12	13	15	16	17	17	18	18	17	14	13	13	12	11	10	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 (%)	82	64	44	29	13	9	3	3	2	9	7	3	0	4	21	16	14	18	14	13	12	10	8	7
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)	2.39	2.5	2.81	3	3.31	3.39	3.89	4.11	4.11	3.69	3.39	3.19	2.81	2.19	1.31	0.19	1.81	4	3.89	3.39	3	2.5	2.19	1.81
Wind gust (m/s)	4.75	4.86	5.47	5.89	6.92	7.14	7.47	6.53	6	5.36	4.97	4.78	4.25	3.31	1.94	0.31	2.67	6.06	5.97	5.22	4.89	4.44	4.61	3.78
Wind direction (°)	SW 222°	WSW 258°	W 278°	WNW 301°	NW 322°	NNW 338°	NNW 345°	N 356°	N 1°	N 3°	N 2°	N 4°	NNE 12°	NNE 18°	N 10°	NNW 329°	SE 128°	SE 139°	SSE 148°	SSE 156°	SSE 158°	SSE 156°	SSE 165°	SSE 166°

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 (%)	74	71	70	67	67	67	64	59	54	49	45	42	39	38	40	43	48	57	61	62	65	72	79	82

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

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	0.1	0.2	0.7	1.2	1.8	3	1.5	1.2	1.6	1.1	0.6	0.4	0.1	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)	3.5	3.6	3.4	3.2	3.2	3.4	3.9	4.5	4.7	4.5	4.2	4.5	5	5.6	6.2	6.6	6.9	7	7.2	7.4	8	9.9	11.3	12.3
PM10 (µg/m³)	4.6	5.9	5.7	5	4.3	4.4	4.9	5.6	5.7	5.5	5	5.6	6.4	7.2	8	8.5	8.8	9	9.2	9.5	10.2	13.8	15.9	18
Ozone (O₃) (µg/m³)	64	59	54	51	51	50.5	50.2	49	46	45	47	52	56	60	64	67	70	73	75	75	75	73	70	65
NO₂ (µg/m³)	8.4	10.9	10.9	9.1	8.3	9.3	10.5	11.4	12.3	12.2	10.5	8	6	5.1	4.7	4.5	4.2	4.1	4.2	4.6	5.2	6.2	7.8	9.7
SO₂ (µg/m³)	1.7	2.1	2	1.7	1.6	1.5	1.6	1.6	1.5	1.5	1.5	1.4	1.4	1.4	1.4	1.4	1.4	1.4	1.4	1.4	1.5	1.5	1.5	1.4
CO (µg/m³)	130.9	133.9	141.9	136.9	141.4	156.9	166.2	165.9	150.9	136.9	134.9	130.9	127.9	127.9	129.9	130.9	130.9	131.9	132.9	134.9	138.9	141.9	144.9	146.9

← Fri, May 29

Sat, May 30, 2026

Sun, May 31 →

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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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