5-day weather forecast Helsinki 12-07-2026

Weather forecast Helsinki Sunday, July 12 12.07.2026: mist, temperature from 17 °C to 25 °C.

Precipitation probability 49%. Wind up to 6.81 m/s (gusts 11.86 m/s). Air humidity 63–97%, atmospheric pressure 761–762 mm Hg, UV index up to 5.4.

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ModerateJul 12, 12:00 PM — Jul 12, 09:00 PMTranslate with Google

Yellow heavy rain warning: Kymenlaakso and locally in the western part of the country, Sun 12.00 - 21.00

Heavy rain warning

Heavy rain warning: In Sunday noon and evening, probability for heavy rain is 30%.

Sunrise 04:17
Sunset 22:34

New Moon2% illuminated
Moonrise 00:24 · Moonset 21:59

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Table

← Sat, Jul 11

Sun, Jul 12, 2026

Mon, Jul 13 →

Forecast from 17 °C to 25 °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)	18	18	18	18	18	17	18	19	19	21	22	23	24	24	25	25	25	23	20	19	19	19	19	19
Precipitation (mm/hr)	0.13	0	0	0	0	0	0	0.02	0.06	0	0	0	0.69	0	0	0	1.05	3.57	0.79	1.42	4.88	3.76	1.89	0.48

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 (%)	89	42	13	11	23	19	19	88	70	23	16	17	86	21	28	28	80	85	50	70	70	100	84	63
Rain chance (%)	49	21	21	20	22	22	21	37	29	13	9	7	47	6	6	6	57	75	55	65	85	89	79	54

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)	2.69	3.61	3.31	3.19	2.81	2.89	2.5	1.89	2.39	2.61	2.61	2.39	2.5	2.61	2.11	2.11	1.5	2.31	6.81	4.69	5.61	6.19	6	5.89
Wind gust (m/s)	5.67	7.56	6.92	6.72	5.89	6.08	5.25	3.47	4.03	4	3.86	3.64	3.81	4	3.31	3.56	2.69	4.61	11.69	9.86	11.53	11.86	11.25	11.56
Wind direction (°)	N 1°	N 355°	N 3°	NNE 19°	NNE 19°	N 1°	N 10°	NE 48°	NNE 30°	NE 42°	NE 48°	ENE 57°	E 80°	E 97°	E 85°	E 91°	E 96°	E 85°	ENE 66°	NE 37°	NNW 328°	NW 326°	NNW 336°	NNW 340°

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 (%)	97	96	96	96	96	96	95	95	91	85	76	71	68	67	65	63	64	76	89	84	94	96	95	95

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	761	761	761	761	761	761	761	761	761	761	761	761	761	761	761	761	761	761	762	762	762	762

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	2	3	4.1	4.9	5.4	5.1	4.4	3.3	2.3	1.3	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)	5.1	6	6.7	7	6.9	6.4	6.1	6.2	6.3	6.6	7	6.9	6.5	7.2	6.2	5.8	6.7	6.8	6.3	5.3	4.9	5.2	5.3	4.8
PM10 (µg/m³)	7.4	7.5	7.8	8.2	8.2	7.8	7.5	8.1	8.1	8.2	8.6	8.4	8.4	8.4	8.2	7.8	8.3	8.8	8.9	8.5	6.9	7	6.2	5.5
Ozone (O₃) (µg/m³)	68	63	60	59	55	49	45	45	48	56	68	78	87	92	94	95	94	90	88	84	76	72	70	66
NO₂ (µg/m³)	7.5	7.8	7.6	7.3	7.2	6.9	6.5	6.7	6.4	5.9	5.3	4.9	5	5.1	7	9	6.7	5.6	5.1	5.3	7.1	7.6	7.8	8.6
SO₂ (µg/m³)	0.7	0.6	0.6	0.8	0.8	0.7	0.8	0.9	1.2	1.3	1.8	1.9	1.4	1.1	1.1	0.9	0.9	0.9	1	0.9	0.7	0.6	0.6	0.5
CO (µg/m³)	151	149	149	151	149	146	148	153	170	177	177	177	175	174	194	207	205	197	186	167	151	144	142	136

← Sat, Jul 11

Sun, Jul 12, 2026

Mon, Jul 13 →

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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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