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)	5.19	6	5.89	4.5	3.81	3.5	3.31	4.61	5	4.39	4.89	1.11	6.61	7	6.61	6.69	6.69	7	3.89	5	5.19	4.31	5.69	7.89
Wind gust (m/s)	7.81	8.72	8.42	7.03	5.92	5.19	5.61	6.64	6.72	5.61	5.42	3.42	9.61	11	9.61	9.69	7	8.81	5.39	7.11	7.03	6.11	7.22	11.39
Wind direction (°)	SSE 160°	S 180°	SSW 203°	SW 222°	WSW 237°	SW 232°	S 178°	SSW 208°	WSW 239°	S 190°	S 172°	S 184°	SSE 149°	SE 146°	SE 125°	SE 144°	SE 145°	SE 143°	SE 146°	SSE 160°	SSE 150°	SSW 199°	SSW 212°	S 187°

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 (%)	75	76	75	74	75	74	73	71	55	60	58	46	57	58	50	62	67	64	73	74	74	74	76	77

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)	755	754	754	754	754	755	756	757	756	758	758	755	756	755	753	755	755	754	756	758	756	758	759	757

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	0.8	2.6	5.4	8.3	10.4	10.3	8.8	5.2	2.9	1	0.2	0	0	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.

← Sun, Sep 27

Mon, Sep 28, 2026

Chennai on the map

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 →