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Monthly climate in Trincomalee, Sri Lanka

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Trincomalee features a tropical savanna climate (As).Temperatures typically range between 26 °C (79 °F) and 30 °C (86 °F) through the year, but rarely can drop to 21 °C (70 °F) or can rise to as high as 36 °C (96 °F).The average annual precipitation amounts to about 1352 mm (53.2 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually.Trincomalee enjoys an average of 3837 hours of sunshine throughout the year, and daylight varies from 11 hours 37 minutes to 12 hours 36 minutes per day.

Monthly average temperatures in Trincomalee, Sri Lanka §

The warmest months in Trincomalee are May, June and July, with daily mean temperatures ranging from 29 to 30 °C (85 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 26 to 26 °C (79 - 80 °F) throughout the day. On average each year, Trincomalee 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 Trincomalee, 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)		 30°C
(86°F)		 32°C
(91°F)		 35°C
(95°F)		 36°C
(96°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(94°F)		 36°C
(96°F)		 34°C
(93°F)		 31°C
(89°F)		 30°C
(85°F)
Mean maximum 28°C
(83°F)		 29°C
(85°F)		 31°C
(89°F)		 34°C
(93°F)		 34°C
(94°F)		 34°C
(93°F)		 34°C
(94°F)		 34°C
(93°F)		 34°C
(93°F)		 33°C
(91°F)		 31°C
(88°F)		 29°C
(84°F)
Average high 27°C
(81°F)		 28°C
(82°F)		 29°C
(85°F)		 31°C
(89°F)		 33°C
(91°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(91°F)		 32°C
(90°F)		 30°C
(87°F)		 29°C
(84°F)		 28°C
(82°F)
Daily mean 26°C
(79°F)		 26°C
(79°F)		 27°C
(81°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(82°F)		 27°C
(80°F)		 26°C
(80°F)
Average low 24°C
(76°F)		 25°C
(77°F)		 26°C
(78°F)		 26°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(77°F)
Mean minimum 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(80°F)		 26°C
(79°F)		 26°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(75°F)
Minimum 21°C
(70°F)		 22°C
(72°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)

Compare climate in Trincomalee with other places

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

Monthly average precipitation in Trincomalee, Sri Lanka §

Trincomalee usually has the most precipitation in October, November and December, with an average of 22 rainy days and 275 mm (10.8 inches) of precipitation per month.The driest months in Trincomalee are April, June and July. On average, 35 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Trincomalee, 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) 130 (5.1) 56 (2.2) 49 (1.9) 38 (1.5) 65 (2.6) 20 (0.8) 46 (1.8) 48 (1.9) 73 (2.9) 199 (7.8) 359 (14.2) 268 (10.5)
Average precipitation days (≥ 1 mm) 13 12 11 9 12 3 8 8 12 20 25 21

Monthly sunshine hours in Trincomalee, Sri Lanka §

The sunniest months in Trincomalee are March, April and July, when the sun shines an average of 11 hours 14 minutes a day.Least sunny months in Trincomalee: January, November and December receive an average of 9 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Trincomalee, 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 261 309 345 343 340 338 345 340 323 315 279 294
Mean daily daylight hours 11h 40m 11h 50m 12h 3m 12h 18m 12h 30m 12h 36m 12h 33m 12h 22m 12h 8m 11h 54m 11h 43m 11h 37m

Solar UV radiation in Trincomalee, Sri Lanka §

Trincomalee 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.June, November and December are in the Very High / 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 Trincomalee UV Index data.

Average daily maximum UV levels by month for Trincomalee, 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 14 13 12 12 13 14 13 11 10