5-day weather forecast Helsinki 17-06-2026

Weather forecast Helsinki today 17.06.2026: partly cloudy, temperature from 12 °C to 16 °C.

Precipitation probability 36%. Wind up to 8.19 m/s (gusts 13.11 m/s). Air humidity 70–94%, atmospheric pressure 750–753 mm Hg, UV index up to 1.9.

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ModerateJun 17, 12:00 PM — Jun 17, 09:00 PMTranslate with Google

Yellow wave height warning: Western Gulf of Finland, Wed 15.00 - Thu 0.00

Wave height warning

Wave height warning: From Wednesday noon to the night between Wednesday and Thursday, probability for rough waves is 40%. The significant wave height may exceed 2.5 meters.

ModerateJun 17, 12:00 PM — Jun 17, 09:00 PMTranslate with Google

Yellow wave height warning: Western Gulf of Finland, Wed 15.00 - Thu 0.00

Wave height warning

Wave height warning: Rough waves occur from the afternoon on. Significant wave height exceeds 2.5 meters.

Sunrise 03:53
Sunset 22:48

Waxing Crescent11% illuminated
Moonrise 05:27 · Moonset 00:44

Chart

Table

Wed, Jun 17, 2026

Thu, Jun 18 →

Forecast from 12 °C to 16 °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)	14	13	13	13	13	12	13	12	13	15	16	15	15	16	15	14	13	13	13	13	13	13	13	13
Precipitation (mm/hr)	0.09	0	0.31	0.2	0	0	0	0	0	0.01	0.09	0.13	0.16	0.17	1.19	2.09	2.02	0.79	0.29	0.25	0.64	0.62	0.16	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 (%)	97	100	100	69	54	49	75	42	36	83	51	61	63	74	100	100	100	100	100	100	100	100	99	60
Rain chance (%)	36	29	53	41	21	19	18	16	13	17	17	24	26	27	69	81	82	71	58	55	72	72	50	21

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)	4.39	4.69	4.89	4.89	5	5.39	5.81	6.11	6.11	6.61	6.69	6.31	6.31	5.89	6.39	6.81	7.61	8.19	8.19	8.11	7.69	7.39	7.61	7.39
Wind gust (m/s)	8.14	8.19	8.25	7.97	7.89	8.25	8.42	8.47	8.42	8.83	9.33	10.53	11.03	10.53	11.14	11.31	12.17	12.94	13.11	12.75	12.22	11.86	12.39	12.19
Wind direction (°)	WNW 292°	WNW 292°	WNW 302°	NW 304°	WNW 303°	WNW 302°	WNW 297°	WNW 300°	WNW 299°	WNW 299°	WNW 303°	WNW 302°	WNW 300°	WNW 298°	NW 306°	NW 308°	NW 306°	NW 307°	NW 311°	NW 312°	NW 314°	NW 316°	NW 320°	NW 316°

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 (%)	87	89	92	93	92	91	82	86	81	73	70	76	75	72	80	92	94	94	93	92	93	93	92	90

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)	750	750	750	750	750	750	750	750	750	750	750	750	750	750	750	750	751	751	752	752	752	752	753	753

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	0.4	1	1.7	1.9	1.5	0.9	1.6	1.3	0.5	0.3	0.3	0.1	0.1	0.1	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)	3.4	3.2	3	2.9	2.9	2.9	3	2.8	3.3	3.2	2.9	2.8	2.9	3	2.9	2.9	3.3	3.5	3.5	3.5	3.3	3.1	2.8	2.3
PM10 (µg/m³)	4	4.3	3.6	3.7	3.6	3.7	3.6	3.7	4.3	4.2	3.8	4	4.2	4.1	4.3	4.8	5	4.9	4.7	4.3	4.3	3.9	3.5	3.4
Ozone (O₃) (µg/m³)	52	48	42	46	45	43	45	47	47	49	50	50	49	47	46	45	46	49	52	53	54	53	53	56
NO₂ (µg/m³)	5.7	4.9	4.1	3.7	3.3	2.7	2.4	3	3.8	3.7	3.5	3.1	3	2.9	2.8	2.9	3.3	3.1	3.1	3	3	2.8	3.3	3.5
SO₂ (µg/m³)	0.4	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.4	0.4	0.3	0.3	0.3	0.3	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.3
CO (µg/m³)	124	122	118	114	111	113	113	114	125	124	126	125	125	126	126	126	126	127	128	127	120	120	119	115

Wed, Jun 17, 2026

Thu, Jun 18 →

Frequently asked questions about the weather in Helsinki

Today in Helsinki the temperature ranges from 12 °C to 16 °C, wind up to 8.19 m/s. Check the detailed hourly forecast above for more information.

The precipitation probability in Helsinki today is 36%. View the full multi-day forecast above to see the rain chances for each upcoming day.

The wind speed in Helsinki today reaches up to 8.19 m/s with gusts up to 13.11 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Helsinki today ranges from 70% to 94%. View the humidity chart above for hourly details.

The UV index in Helsinki today reaches up to 1.9. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Helsinki today ranges from 750 to 753 mm Hg. View the pressure chart above for hourly readings.

Cloud cover in Helsinki today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.

Helsinki 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 →