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	3.61	3.5	4.11	3.39	3.31	2.31	2.81	2.11	2.19	2.39	2.11	3.31	3.89	4.11	3.69	2.89	2.61	3.19	3.19	3.69	4.31	3.89	3.89
Wind gust (m/s)	9.39	7.39	7	7.47	6.81	6.42	5.89	5.72	4.5	4.53	5.92	5.53	6.28	6.14	6.5	7.19	6.33	5.89	6.44	7.22	7.92	8.86	8.5	8.53
Wind direction (°)	SSE 158°	SE 146°	SSE 150°	S 178°	SSE 168°	S 175°	SW 228°	S 182°	SW 214°	WSW 244°	WSW 251°	WSW 243°	SW 218°	SW 216°	SSW 212°	SSW 204°	SSW 201°	S 188°	SSE 168°	SSE 168°	S 170°	SSE 167°	S 174°	S 171°

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 (%)	92	92	95	96	97	97	95	97	97	93	89	87	85	84	85	84	86	87	88	90	88	87	89	89

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)	761	763	762	761	762	762	762	762	762	763	763	764	764	764	764	764	764	764	764	765	765	764	764	764

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	0	0	0	0.2	0.5	0.7	0.6	0.5	0.2	0	0	0	0	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)	2.8	4.5	6.5	8	9	8.6	8.5	8.4	7.9	6.4	4.8	3.4	2.5	2.5	2.5	2.6	2.6	3.3	3.7	4.3	5	5.8	6	6
PM10 (µg/m³)	4.7	7.3	9.3	10.6	10.9	10.4	10.2	10	9.1	7.1	5.1	3.5	2.6	2.5	2.5	2.7	3.5	4.9	5.6	6.5	7.4	8.2	8.3	8.1
Ozone (O₃) (µg/m³)	71	60.8	52.5	44.8	38	40	42	44	45	45	44	42	40	36	33	35	49	69	83	86	83	79	76	73
NO₂ (µg/m³)	3.5	3.8	4.2	4.6	4.5	4.1	3.8	3.6	3.4	3.3	3.3	3.5	3.7	4.2	4.8	5	4.6	3.8	3.3	3.4	3.7	3.9	3.8	3.7
SO₂ (µg/m³)	0.3	0.6	0.9	1.1	1.3	1.3	1.3	1.4	1.5	1.6	1.8	2	2.1	2	1.9	1.6	1.1	0.6	0.2	0.1	0.3	0.4	0.5	0.6
CO (µg/m³)	149	147	147	148.8	151	153	155	158	162	165	166	165	164	162	160	158	156	155	152	147	142	138	137	137

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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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5-day weather forecast Helsinki Oct 24, 2026

Forecast from 9 °C to 11 °C and precipitation

Cloud cover and precipitation probability

Wind speed and direction