5-day weather forecast Chennai 20-05-2026

Weather forecast Chennai Wednesday, May 20 20.05.2026: sunny, temperature from 30 °C to 39 °C.

No precipitation expected. Wind up to 12.39 m/s (gusts 17.17 m/s). Air humidity 38–63%, atmospheric pressure 750–754 mm Hg, UV index up to 8.4.

Sunrise 05:43
Sunset 18:28

Waxing Crescent15% illuminated
Moonrise 09:03 · Moonset 22:25

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← Tue, May 19

Wed, May 20, 2026

Thu, May 21 →

Forecast from 30 °C to 39 °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)	31	31	31	31	31	30	31	32	34	35	37	38	39	38	38	37	36	35	34	34	32	30	31	30
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 (%)	6	6	5	5	4	5	5	4	3	4	19	21	24	18	17	17	15	13	10	11	15	5	7	6
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)	9.39	7.81	6.89	5.5	4.61	4.19	4.39	5.89	6.5	6	5.31	4.5	3.31	0.5	2.39	4.81	5.89	5.31	5.39	5.31	11.19	11.19	11.5	12.39
Wind gust (m/s)	13.44	11.78	10.61	8.69	7.39	6.81	6.61	8	8.61	8.17	7.44	6.72	5.14	0.75	3.53	8.08	10.31	8.83	9.97	10.83	16.39	15.81	16.17	17.17
Wind direction (°)	W 261°	W 260°	WSW 256°	WSW 245°	SW 226°	SW 227°	SW 231°	WSW 238°	WSW 245°	W 267°	WNW 286°	WNW 291°	WNW 300°	NNE 15°	ESE 115°	ESE 112°	SE 136°	SSW 192°	SSE 167°	S 186°	SW 231°	SW 235°	WSW 241°	WSW 241°

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 (%)	59	57	54	55	57	60	59	53	47	44	41	38	38	41	44	46	51	50	52	51	56	62	59	63

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)	752	752	752	752	752	752	753	754	754	754	753	752	752	751	750	750	750	751	750	751	752	752	752	752

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	0.2	1	2.9	5.1	6.4	7.7	7.2	8.4	6.2	3.6	0.9	0.2	0	0	0	0	0	0

← Tue, May 19

Wed, May 20, 2026

Thu, May 21 →

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 →