5-day weather forecast Chennai 17-05-2026

Weather forecast Chennai today 17.05.2026: sunny, temperature from 29 °C to 33 °C.

Precipitation probability 86%. Wind up to 8.39 m/s (gusts 10 m/s). Air humidity 60–84%, atmospheric pressure 752–755 mm Hg, UV index up to 11.5.

Sunrise 05:43
Sunset 18:27

Waxing Crescent0% illuminated
Moonrise 05:47 · Moonset 19:11

Chart

Table

Sun, May 17, 2026

Mon, May 18 →

Forecast from 29 °C to 33 °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)	29	29	29	29	29	29	29	30	31	31	32	32	33	33	32	32	31	31	30	30	30	30	30	30
Precipitation (mm/hr)	0	0	0.01	0.01	0.01	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.08	0.12

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 (%)	44	44	82	76	50	38	31	23	18	27	22	21	20	17	15	17	16	12	11	11	12	16	79	78
Rain chance (%)	0	0	86	70	65	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	100	100

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)	3.19	3.39	2.89	2.89	3	2.89	3.5	4.11	4.61	5	5.39	6	7.31	8.31	8.39	8.19	8.11	7.89	7.5	6.81	6.39	6.19	6.5	6.81
Wind gust (m/s)	4.42	4.69	4.06	4.08	4.25	4.14	4.75	5.17	5.42	5.78	6.22	6.89	8.39	9.56	9.67	9.47	9.72	10	9.94	9.17	8.78	8.47	9.11	9.53
Wind direction (°)	SSE 157°	SSE 166°	S 175°	S 174°	S 172°	S 182°	S 186°	S 186°	S 184°	S 173°	SSE 167°	SSE 156°	SSE 150°	SSE 149°	SE 146°	SSE 148°	SSE 149°	SSE 148°	SSE 150°	SSE 152°	SSE 156°	SSE 167°	S 184°	SSW 197°

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 (%)	79	79	79	79	84	79	78	73	67	64	61	60	60	60	62	63	67	71	75	78	78	79	80	79

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)	754	753	753	753	752	753	754	755	755	755	755	754	753	752	752	752	752	752	752	753	754	755	755	754

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	3.3	6.3	9.3	11.4	11.5	10	7.1	3.9	1.6	0.4	0	0	0	0	0	0

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)	11.6	13.2	15	16.8	18.2	18.9	19.1	19.2	18.8	18.3	18	18	17.7	18.4	20.1	22.3	24.5	24.6	24.1	23.8	24.6	25.6	25.5	24.8
PM10 (µg/m³)	15.6	17.7	19.8	21.9	23.6	24.6	25.3	25.9	25.6	25.2	24.5	24.5	24.8	26.2	28.7	31.3	34	33.5	32.8	32.4	33.6	34.9	35	34.2
Ozone (O₃) (µg/m³)	85	88	90	92	94	97	100	102	101	98	96	93	91	94	107	126	140	144	144	143	145	146	144	137
NO₂ (µg/m³)	8.5	8.4	9.5	11.2	12.2	11.8	10.7	10	10	10.2	10.6	11.3	12	12	10.4	8	6.1	5	4.4	4.2	4.7	5.6	6.3	6.2
SO₂ (µg/m³)	9.7	8.5	8.6	9.3	10	10.3	10.4	10.8	11.2	11.7	13.3	17	21.7	24.9	25.6	24.8	23.1	19.9	15.7	12.6	11.9	12.3	12.2	10.6
CO (µg/m³)	219.9	232.9	234.9	230.9	225.9	216.9	205.9	204.9	221.9	247.9	268.9	278.9	282.9	283.9	281.9	275.9	266.9	248.9	226.9	221.9	249.9	292.9	320.9	312.9

Sun, May 17, 2026

Mon, May 18 →

Frequently asked questions about the weather in Chennai

Today in Chennai the temperature ranges from 29 °C to 33 °C, wind up to 8.39 m/s. Check the detailed hourly forecast above for more information.

The precipitation probability in Chennai today is 86%. View the full multi-day forecast above to see the rain chances for each upcoming day.

The wind speed in Chennai today reaches up to 8.39 m/s with gusts up to 10 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Chennai today ranges from 60% to 84%. View the humidity chart above for hourly details.

The UV index in Chennai today reaches up to 11.5. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Chennai today ranges from 752 to 755 mm Hg. View the pressure chart above for hourly readings.

Cloud cover in Chennai today reaches up to 82%. Check the cloud cover chart above for hourly details throughout the day.

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 →