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Monthly climate in Vallam, Tamil Nadu, India

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Vallam features a tropical savanna climate (Aw).Temperatures typically range between 26 °C (79 °F) and 32 °C (90 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 42 °C (107 °F).The average annual precipitation amounts to about 994 mm (39.1 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually.Vallam enjoys an average of 3628 hours of sunshine throughout the year, and daylight varies from 11 hours 29 minutes to 12 hours 44 minutes per day.

Monthly average temperatures in Vallam, Tamil Nadu, India §

The warmest months in Vallam are May, June and July, with daily mean temperatures ranging from 31 to 32 °C (89 - 90 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 26 to 27 °C (79 - 80 °F) throughout the day. On average each year, Vallam 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 Vallam, Tamil Nadu, 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 34°C
(93°F)		 36°C
(96°F)		 38°C
(101°F)		 40°C
(104°F)		 41°C
(107°F)		 42°C
(107°F)		 40°C
(105°F)		 40°C
(105°F)		 38°C
(101°F)		 38°C
(101°F)		 36°C
(97°F)		 32°C
(90°F)
Mean maximum 33°C
(91°F)		 34°C
(94°F)		 37°C
(100°F)		 39°C
(103°F)		 40°C
(104°F)		 40°C
(103°F)		 39°C
(102°F)		 39°C
(103°F)		 38°C
(100°F)		 36°C
(97°F)		 34°C
(93°F)		 31°C
(89°F)
Average high 30°C
(87°F)		 32°C
(90°F)		 35°C
(95°F)		 37°C
(99°F)		 38°C
(100°F)		 38°C
(100°F)		 37°C
(98°F)		 36°C
(97°F)		 35°C
(95°F)		 33°C
(92°F)		 31°C
(87°F)		 30°C
(85°F)
Daily mean 26°C
(79°F)		 27°C
(80°F)		 29°C
(85°F)		 31°C
(88°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(89°F)		 31°C
(87°F)		 30°C
(86°F)		 29°C
(84°F)		 27°C
(81°F)		 26°C
(79°F)
Average low 22°C
(72°F)		 22°C
(72°F)		 25°C
(76°F)		 27°C
(81°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(80°F)		 26°C
(79°F)		 24°C
(76°F)		 23°C
(74°F)
Mean minimum 20°C
(68°F)		 20°C
(68°F)		 22°C
(72°F)		 25°C
(77°F)		 27°C
(80°F)		 27°C
(80°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(76°F)		 23°C
(73°F)		 21°C
(70°F)
Minimum 19°C
(66°F)		 18°C
(65°F)		 20°C
(68°F)		 23°C
(74°F)		 25°C
(78°F)		 26°C
(78°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 22°C
(72°F)		 20°C
(68°F)

Compare climate in Vallam with other places

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

Monthly average precipitation in Vallam, Tamil Nadu, India §

Vallam usually has the most precipitation in September, October and November, with an average of 20 rainy days and 173 mm (6.8 inches) of precipitation per month.The driest months in Vallam are February, March and April. On average, 13 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Vallam, Tamil Nadu, 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) 46 (1.8) 5 (0.2) 16 (0.6) 18 (0.7) 44 (1.7) 61 (2.4) 71 (2.8) 93 (3.7) 133 (5.2) 156 (6.1) 232 (9.1) 119 (4.7)
Average precipitation days (≥ 1 mm) 5 1 4 4 9 11 13 14 19 21 22 12

Monthly sunshine hours in Vallam, Tamil Nadu, India §

The sunniest months in Vallam are March, April and May, when the sun shines an average of 11 hours 6 minutes a day.Least sunny months in Vallam: January, November and December receive an average of 8 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Vallam, Tamil Nadu, 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 251 305 341 338 341 316 317 304 297 289 247 276
Mean daily daylight hours 11h 33m 11h 46m 12h 3m 12h 21m 12h 36m 12h 44m 12h 40m 12h 27m 12h 9m 11h 51m 11h 36m 11h 29m

Solar UV radiation in Vallam, Tamil Nadu, India §

Vallam experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 15, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Vallam UV Index data.

Average daily maximum UV levels by month for Vallam, Tamil Nadu, 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) 10 12 13 15 12 12 13 13 13 12 11 9