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)	27	26	26	26	26	25	26	27	27	29	29	28	29	29	28	29	29	27	28	28	27	28	27	26
Precipitation (mm/hr)	1.41	1.43	0.72	0	0.24	0.35	0	0.01	0.08	0	0.55	0.47	0.29	0	0.09	0	0	0.01	0	0	0.03	0.21	0.02	0.61

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	66	61	5	84	57	5	78	52	23	96	86	82	4	57	4	3	59	3	4	59	70	89	61
Rain chance (%)	73	65	56	11	39	43	11	20	21	8	53	47	30	5	19	5	6	16	7	8	19	29	22	52

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)	3	3.31	2.19	3.81	3.31	2.5	3.81	4.11	3.61	4.61	4.61	4.19	5.61	5.89	4.61	6	5.61	4	5.31	5.11	3	4.61	4.39	1.89
Wind gust (m/s)	4.33	4.69	3.92	5.33	4.92	4.22	5.5	5.5	6.11	5.42	5.11	7.47	6	6.11	6.11	6.33	6.31	6.61	6.53	6.39	6.11	5.81	5.69	5.5
Wind direction (°)	NNE 23°	NNE 18°	N 6°	N 8°	N 6°	N 3°	N 6°	N 8°	NNE 18°	NNE 30°	NE 40°	NE 38°	NE 46°	NE 48°	NE 45°	NE 46°	NE 45°	NE 39°	NE 40°	NE 42°	NE 35°	NE 38°	NE 39°	NE 37°

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 (%)	85	86	90	84	85	92	85	81	82	72	70	78	68	67	75	68	70	80	74	76	82	78	79	87

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)	759	758	758	758	758	759	759	760	761	761	761	760	759	758	758	758	758	758	759	760	760	760	760	760

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	0.5	2	4.5	7.1	8.9	9.2	7.8	5.3	2.6	0.9	0.1	0	0	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.

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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 →