5-day weather forecast Helsinki 12-05-2026

Weather forecast Helsinki Tuesday, May 12 12.05.2026: light drizzle, temperature from 7 °C to 11 °C.

Precipitation probability 100%. Wind up to 5.5 m/s (gusts 9.08 m/s). Air humidity 71–97%, atmospheric pressure 747–754 mm Hg, UV index up to 3.

Sunrise 04:49
Sunset 21:46

Waning Crescent29% illuminated
Moonrise 03:43 · Moonset 15:23

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← Mon, May 11

Tue, May 12, 2026

Forecast from 7 °C to 11 °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	8	8	8	7	7	7	8	9	7	10	10	7	11	11	8	11	10	9	8	7	7	7	7
Precipitation (mm/hr)	0.12	0.66	0.21	0	0	0	1.28	0	0	0.22	0	0	0.34	0	0	0	0.14	0.09	0.02	0.58	0.56	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 (%)	100	100	100	72	13	14	100	8	82	100	48	51	100	79	100	100	100	100	100	100	100	22	48	74
Rain chance (%)	100	100	100	0	0	0	100	0	0	100	0	0	100	0	0	0	100	100	57	100	100	0	23	45

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)	1.11	1.11	2.89	3.11	3.89	3.81	2.89	4.19	4.69	4.61	5.19	5.31	3.89	5.31	5.5	2.11	5.31	4.39	3.5	3.39	3.11	1.19	1	0.89
Wind gust (m/s)	2.06	2	5.58	6.14	8.06	7.97	5.33	7.72	8	7.53	8.22	8.25	6.5	8.67	9.08	3.36	9	7.67	5.44	6.17	5.81	2.33	2	1.69
Wind direction (°)	NE 39°	NNE 23°	NNE 31°	NE 56°	ESE 111°	ESE 112°	E 86°	ESE 118°	ESE 123°	ENE 75°	ESE 116°	ESE 107°	ESE 105°	ESE 105°	ESE 105°	SW 217°	ESE 103°	ESE 104°	SW 233°	ESE 103°	E 99°	N 354°	W 275°	SSW 197°

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 (%)	71	80	86	86	85	89	90	83	77	94	76	78	97	74	71	95	74	80	79	94	96	86	86	86

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)	754	754	753	752	753	752	750	752	752	749	751	750	748	750	749	748	749	749	748	748	747	748	748	748

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	0.2	0.4	0.8	1.1	2.4	1.3	1.8	1.2	3	2	2	2	2	3	0	0

← Mon, May 11

Tue, May 12, 2026

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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.

Learn more about our methodology →