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Monthly climate in Kalmunai, Eastern Province, Sri Lanka

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Kalmunai features a tropical rainforest climate (Af).Temperatures typically range between 26 °C (78 °F) and 29 °C (85 °F) through the year, but rarely can drop to 21 °C (70 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1403 mm (55.2 inches) and receives 184 rainy days on the 1 mm (0.04 inches) threshold annually.Kalmunai enjoys an average of 3883 hours of sunshine throughout the year, and daylight varies from 11 hours 41 minutes to 12 hours 31 minutes per day.

Monthly average temperatures in Kalmunai, Eastern Province, Sri Lanka §

The warmest months in Kalmunai are May, June and July, with daily mean temperatures ranging from 29 to 29 °C (84 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 26 to 26 °C (78 - 79 °F) throughout the day. On average each year, Kalmunai 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 Kalmunai, Eastern Province, Sri Lanka.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 29°C
(84°F)		 29°C
(85°F)		 31°C
(88°F)		 32°C
(90°F)		 34°C
(93°F)		 34°C
(94°F)		 34°C
(94°F)		 33°C
(92°F)		 33°C
(92°F)		 32°C
(90°F)		 31°C
(88°F)		 30°C
(86°F)
Mean maximum 28°C
(83°F)		 29°C
(84°F)		 31°C
(87°F)		 32°C
(89°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(92°F)		 32°C
(90°F)		 31°C
(89°F)		 30°C
(87°F)		 29°C
(85°F)
Average high 27°C
(81°F)		 28°C
(82°F)		 29°C
(84°F)		 30°C
(87°F)		 31°C
(89°F)		 32°C
(90°F)		 32°C
(89°F)		 31°C
(89°F)		 30°C
(87°F)		 30°C
(85°F)		 28°C
(83°F)		 27°C
(82°F)
Daily mean 26°C
(78°F)		 26°C
(79°F)		 27°C
(81°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(83°F)		 27°C
(82°F)		 26°C
(80°F)		 26°C
(79°F)
Average low 24°C
(76°F)		 25°C
(76°F)		 25°C
(78°F)		 26°C
(79°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 26°C
(80°F)		 26°C
(79°F)		 25°C
(77°F)		 25°C
(77°F)
Mean minimum 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 25°C
(77°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(75°F)		 24°C
(75°F)
Minimum 21°C
(70°F)		 23°C
(73°F)		 24°C
(76°F)		 25°C
(76°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(76°F)		 24°C
(76°F)		 23°C
(74°F)		 23°C
(73°F)

Compare climate in Kalmunai with other places

Compare temperature, precipitation, sunshine, UV index in Kalmunai, Eastern Province, Sri Lanka with other places around the world.

Monthly average precipitation in Kalmunai, Eastern Province, Sri Lanka §

Kalmunai usually has the most precipitation in October, November and December, with an average of 23 rainy days and 251 mm (9.9 inches) of precipitation per month.The driest months in Kalmunai are June, July and August. On average, 41 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kalmunai, Eastern Province, Sri Lanka.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) 139 (5.5) 93 (3.7) 78 (3.1) 56 (2.2) 69 (2.7) 29 (1.1) 44 (1.7) 50 (2.0) 91 (3.6) 184 (7.3) 317 (12.5) 253 (9.9)
Average precipitation days (≥ 1 mm) 14 17 13 12 16 6 11 10 16 21 25 23

Monthly sunshine hours in Kalmunai, Eastern Province, Sri Lanka §

The sunniest months in Kalmunai are May, July and August, when the sun shines an average of 11 hours 9 minutes a day.Least sunny months in Kalmunai: January, November and December receive an average of 9 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kalmunai, Eastern Province, Sri Lanka.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 262 307 343 341 345 342 349 343 328 322 293 302
Mean daily daylight hours 11h 43m 11h 52m 12h 4m 12h 16m 12h 26m 12h 31m 12h 29m 12h 20m 12h 8m 11h 56m 11h 46m 11h 41m

Solar UV radiation in Kalmunai, Eastern Province, Sri Lanka §

Kalmunai experiences the highest level of ultraviolet (UV) radiation in March, April and September, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.January, July and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Kalmunai UV Index data.

Average daily maximum UV levels by month for Kalmunai, Eastern Province, Sri Lanka.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) 12 13 15 15 14 13 12 14 14 13 12 11