5-day weather forecast Helsinki 19-04-2026

Weather forecast Helsinki Sunday, April 19 19.04.2026: sunny, temperature from 1 °C to 7 °C.

No precipitation expected. Wind up to 4.81 m/s (gusts 6.44 m/s). Air humidity 43–78%, atmospheric pressure 769–770 mm Hg, UV index up to 2.9.

Sunrise 05:52
Sunset 20:49

Waxing Crescent3% illuminated
Moonrise 05:35 · Moonset below the horizon

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Table

← Sat, Apr 18

Sun, Apr 19, 2026

Mon, Apr 20 →

Forecast from 1 °C to 7 °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)	3	3	3	2	2	1	1	1	2	2	3	4	5	6	6	7	7	7	7	6	5	4	3	3
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 (%)	70	90	60	10	3	5	3	2	4	3	2	2	6	5	6	7	4	5	2	3	5	10	13	9
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	2.89	3.11	3.19	3.31	3.61	3.81	4.31	4.81	4.81	4.39	3.89	3.69	3.31	2.89	2.69	2.61	2.39	2.11	1.39	0.61	0.5	1.5	2.19
Wind gust (m/s)	4.47	5.14	5.25	5.44	5.61	6.14	6.33	6.33	6.44	6.14	5.39	4.78	4.58	4.14	3.75	3.61	3.67	3.56	3.22	2.28	1.14	1.06	3.14	4.61
Wind direction (°)	E 89°	ENE 68°	NE 54°	NE 45°	NE 38°	NE 35°	NE 36°	NE 47°	ENE 59°	ENE 61°	ENE 67°	ENE 71°	E 82°	E 91°	E 99°	E 100°	ESE 119°	SE 125°	ESE 106°	ESE 111°	S 171°	WNW 297°	NNW 334°	NNW 343°

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 (%)	78	77	74	75	76	77	77	76	72	64	59	57	55	52	49	46	49	49	43	44	51	54	54	56

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)	769	770	770	770	770	770	770	770	770	770	770	770	770	770	770	770	769	769	770	770	770	770	770	770

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	0.4	0.8	1.4	2.1	2.6	2.9	2.9	2.5	1.9	1.2	0.7	0.3	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)	5.8	6.7	8	8	5.8	5	4.8	5.1	4.9	4.5	3.8	3.5	3.2	3	3	2.8	2.9	3.1	3.3	3.3	3.1	3.4	3.4	3.2
PM10 (µg/m³)	10.2	12.2	14.4	12.2	8.6	6.6	6.7	6.2	6.2	5.8	5.6	5.4	5.1	4.5	4.3	4.6	4.6	4.4	4.5	4.6	4.9	5	4.6	5.4
Ozone (O₃) (µg/m³)	50	44	37	38	55	60	65	65	66	74	74	74	77	81	89	87	88	92	94	94	93	91	86	80
NO₂ (µg/m³)	20.5	24.9	37.3	29.2	18.7	10.5	9.3	8.4	7	7.2	7.8	6.6	5.3	4.3	3.5	3	2.8	2.7	2.7	2.8	3.1	3.9	5.5	8.9
SO₂ (µg/m³)	2.5	3.2	3.6	3.6	3	2.2	2.1	2.2	2	2.1	2.1	2	1.9	1.7	1.5	1.5	1.5	1.5	1.4	1.3	1.3	1.3	1.5	1.6
CO (µg/m³)	204.9	232.9	243.9	250.9	188.9	170.9	170.9	169.9	170.9	168.9	171.9	181.9	172.9	168.9	165.9	166.9	167.9	165.9	165.9	164.9	165.9	171.9	176.9	175.9

← Sat, Apr 18

Sun, Apr 19, 2026

Mon, Apr 20 →

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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 →