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)	28	27	28	27	27	28	28	28	29	30	30	30	30	30	30	30	29	29	29	29	29	29	28	28
Precipitation (mm/hr)	1.7	1.63	0.88	2.86	0.73	0.14	0.18	0.41	0.03	0	0.04	1	1.19	0.97	0.13	0.32	0.4	0.07	0.04	0.06	0	0.01	0.12	0.02

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	100	100	100	100	100	100	100	100	100	100	92	78	84	74	87	71	74	100	100	88	78	81	72
Rain chance (%)	73	73	64	80	59	32	39	44	19	16	18	54	57	53	21	36	36	20	24	26	18	16	26	17

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)	3.69	3.5	3.19	3	2.89	2.61	2.69	2.69	3.11	3.31	3.31	3.61	3.69	4	4.39	3.81	3.31	3.11	2.69	2.69	2.69	2.69	2.69	2.39
Wind gust (m/s)	5.22	5	4.5	3.72	3.53	3.22	3.31	3.5	3.83	3.81	3.5	7.61	3.72	9	8.39	6.81	7.31	3.42	3.14	3.22	3.31	3.33	3.33	3
Wind direction (°)	SSE 160°	S 171°	S 172°	S 177°	S 171°	S 169°	S 174°	S 171°	S 169°	SSE 167°	SSE 155°	SE 146°	SE 143°	SE 135°	SE 129°	ESE 123°	ESE 111°	E 95°	ENE 76°	ENE 58°	NE 52°	NE 47°	NE 40°	NE 43°

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 (%)	83	84	81	82	79	77	76	74	69	66	64	66	68	68	69	69	70	73	75	75	75	75	75	76

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	758	758	758	758	758	759	760	760	760	760	759	758	758	757	757	758	758	758	759	760	760	760	759

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	0.7	2.3	4.8	7.4	9	8.9	7	4.8	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.

← Sat, Oct 17

Sun, Oct 18, 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 →

5-day weather forecast Chennai Oct 18, 2026

Forecast from 27 °C to 30 °C and precipitation