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)	6.89	6.31	4.69	3.39	3.39	3.69	5.19	5	5.5	6.61	7.5	7.19	8.19	8.39	8.39	7.89	8	7.81	6.81	5.89	5.31	4.5	4	3.61
Wind gust (m/s)	13.39	12.14	9.5	7.33	7.11	8.31	10.72	10.72	11.53	11.14	10.92	10.31	10.72	10.92	10.81	10.92	10.92	10.83	9.61	9.72	9.81	8.72	7.64	6.53
Wind direction (°)	WSW 256°	WSW 257°	W 275°	W 281°	W 275°	W 260°	W 266°	W 267°	W 266°	W 269°	W 276°	W 280°	W 281°	WNW 283°	WNW 286°	WNW 288°	WNW 293°	WNW 298°	WNW 301°	WNW 297°	WNW 296°	WNW 293°	WNW 292°	WNW 283°

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 (%)	86	88	91	91	89	91	84	83	84	76	70	65	60	60	58	60	60	60	60	62	64	68	70	72

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)	764	764	764	764	764	764	765	765	766	766	767	767	767	768	768	768	769	770	770	770	771	771	772	772

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	0.3	0.6	1.1	1.6	2.2	2.2	1.8	1.4	1.1	0.5	0.1	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)	6.1	6	5.7	5.5	4.9	4.6	4.4	4.6	4.5	4.5	4.3	4.4	4.5	4.3	4.2	4.1	4.2	4.1	4.2	4.2	4.3	4.5	4.5	4.5
PM10 (µg/m³)	14.3	14.8	13.5	12.7	11.6	11.3	11.1	11.1	12.1	12.1	12.5	13.7	15.1	14.8	15.6	14.8	14.9	14.1	14.1	13.2	12.2	12.1	12.6	12.4
Ozone (O₃) (µg/m³)	66	64	64	63	60	58	55	54	57	58	58	61	68	76	76	80	82	82	77	74	71	68	65	64
NO₂ (µg/m³)	6.5	6.3	6.1	5.7	4.9	4.2	3.9	4.2	3.8	3.1	2.6	2	1.8	1.5	1.3	1.4	1.4	1.5	2	2.2	3	3.1	3.2	3.8
SO₂ (µg/m³)	0.6	0.4	0.5	0.4	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
CO (µg/m³)	163	159	159	158	158	161	159	164	168	174	176	180	186	189	189	189	190	191	192	191	189	188	187	185

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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 Hoorn Sep 20, 2026

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