5-day weather forecast Chennai 21-03-2026

Weather forecast Chennai Saturday 21 March 21.03.2026: sunny, temperature from 27 °C to 31 °C.

Precipitation probability 100%. Wind up to 8.69 m/s (gusts 10.11 m/s). Air humidity 63–82%, atmospheric pressure 755–759 mm Hg, UV index up to 11.9.

Sunrise 06:16
Sunset 18:20

Chart

Table

Type of temperature:

°C

°F

← Fri, 20 Mar

Sat, 21 Mar, 2026

Sun, 22 Mar →

Forecast from 27 °C to 31 °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)	27	27	27	27	27	27	27	27	28	30	30	31	31	30	30	30	29	28	28	28	28	28	28	28
Precipitation (mm/hr)	0	1.23	0	0	0	0	0	0	0.01	0.01	0.01	0	0	0	0.43	0	0	0	0	0	0	0	0	0

Cloud cover

Cloud cover
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 (%)	57	54	36	38	27	19	22	29	89	76	78	11	11	7	78	21	19	16	15	16	23	27	31	32

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)	3.61	3.61	4.89	5.19	4.61	4.19	5.11	5.39	4.39	4	5.11	6.69	8.11	8.69	8.5	8	7.31	7	7.39	7.11	6.61	5.11	4.61	3.89
Wind gust (m/s)	5.28	5.47	7.17	7.5	6.72	6.42	7.67	7.14	5.5	4.75	5.92	7.72	9.33	10	9.78	9.19	9.03	9.28	10.11	9.67	9.03	7.03	6.56	5.56

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	79	79	79	79	80	81	77	72	67	63	63	64	66	67	68	73	76	79	80	82	82	82	82

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)	758	757	756	756	757	757	758	758	759	759	758	758	757	756	755	755	756	756	756	757	758	758	758	758

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	0.1	0.8	2.8	5.9	9.2	11.5	11.9	10.1	7	3.7	1.3	0.2	0	0	0	0	0	0

← Fri, 20 Mar

Sat, 21 Mar, 2026

Sun, 22 Mar →

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 →