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Monthly climate in Chennai, India

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Chennai features a tropical savanna climate (Aw).Temperatures typically range between 25 °C (78 °F) and 31 °C (88 °F) through the year, but rarely can drop to 20 °C (68 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 1148 mm (45.2 inches) and receives 128 rainy days on the 1 mm (0.04 inches) threshold annually.Chennai enjoys an average of 3702 hours of sunshine throughout the year, and daylight varies from 11 hours 21 minutes to 12 hours 51 minutes per day.

Monthly average temperatures in Chennai, India §

The warmest months in Chennai are May, June and July, with daily mean temperatures ranging from 30 to 31 °C (86 - 88 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 25 to 26 °C (78 - 79 °F) throughout the day. On average each year, Chennai experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chennai, India.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 30°C
(86°F)		 31°C
(88°F)		 35°C
(95°F)		 35°C
(96°F)		 38°C
(100°F)		 37°C
(99°F)		 36°C
(97°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(93°F)		 32°C
(90°F)		 30°C
(87°F)
Mean maximum 29°C
(85°F)		 31°C
(87°F)		 33°C
(92°F)		 34°C
(94°F)		 36°C
(98°F)		 36°C
(97°F)		 35°C
(96°F)		 34°C
(94°F)		 34°C
(93°F)		 33°C
(91°F)		 31°C
(88°F)		 30°C
(85°F)
Average high 28°C
(82°F)		 29°C
(84°F)		 31°C
(88°F)		 33°C
(91°F)		 34°C
(93°F)		 34°C
(94°F)		 33°C
(92°F)		 32°C
(91°F)		 32°C
(89°F)		 31°C
(87°F)		 29°C
(84°F)		 28°C
(83°F)
Daily mean 25°C
(78°F)		 26°C
(79°F)		 28°C
(83°F)		 30°C
(86°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(83°F)		 27°C
(81°F)		 26°C
(79°F)
Average low 23°C
(74°F)		 24°C
(75°F)		 26°C
(78°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(82°F)		 27°C
(82°F)		 27°C
(81°F)		 27°C
(80°F)		 25°C
(78°F)		 24°C
(76°F)
Mean minimum 22°C
(71°F)		 22°C
(71°F)		 23°C
(75°F)		 26°C
(80°F)		 27°C
(82°F)		 27°C
(81°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(77°F)		 24°C
(75°F)		 22°C
(73°F)
Minimum 20°C
(68°F)		 20°C
(68°F)		 22°C
(72°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(77°F)		 24°C
(76°F)		 23°C
(74°F)		 22°C
(71°F)

Compare climate in Chennai with other places

Compare temperature, precipitation, sunshine, UV index in Chennai, India with other places around the world.

Monthly average precipitation in Chennai, India §

Chennai usually has the most precipitation in September, October and November, with an average of 20 rainy days and 224 mm (8.8 inches) of precipitation per month.The driest months in Chennai are February, March and April. On average, 8 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chennai, India.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 32 (1.3) 10 (0.4) 6 (0.2) 8 (0.3) 13 (0.5) 64 (2.5) 107 (4.2) 125 (4.9) 126 (5.0) 169 (6.7) 377 (14.9) 109 (4.3)
Average precipitation days (≥ 1 mm) 5 1 1 1 3 12 16 19 19 21 20 10

Monthly sunshine hours in Chennai, India §

The sunniest months in Chennai are March, April and May, when the sun shines an average of 11 hours 19 minutes a day.Least sunny months in Chennai: January, September and November receive an average of 9 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chennai, India.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 263 307 346 343 352 315 304 300 293 307 265 302
Mean daily daylight hours 11h 26m 11h 42m 12h 3m 12h 24m 12h 42m 12h 51m 12h 47m 12h 31m 12h 10m 11h 49m 11h 30m 11h 21m

Solar UV radiation in Chennai, India §

Chennai experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Chennai UV Index data.

Average daily maximum UV levels by month for Chennai, India.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 9 12 13 14 12 12 13 13 13 11 10 9