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Monthly climate in Sihanoukville, Cambodia

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sihanoukville features a tropical monsoon climate (Am).Temperatures typically range between 27 °C (81 °F) and 28 °C (83 °F) through the year, but rarely can drop to 23 °C (73 °F) or can rise to as high as 32 °C (90 °F).The average annual precipitation amounts to about 3347 mm (131.8 inches) and receives 255 rainy days on the 1 mm (0.04 inches) threshold annually.Sihanoukville enjoys an average of 3487 hours of sunshine throughout the year, and daylight varies from 11 hours 30 minutes to 12 hours 43 minutes per day.

Monthly average temperatures in Sihanoukville, Cambodia §

The warmest months in Sihanoukville are April, May and June, with daily mean temperatures ranging from 28 to 28 °C (83 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and September, when daily mean temperatures range from 27 to 27 °C (81 - 81 °F) throughout the day. On average each year, Sihanoukville 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 Sihanoukville, Cambodia.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 31°C
(87°F)		 31°C
(88°F)		 31°C
(89°F)		 32°C
(90°F)		 31°C
(88°F)		 30°C
(87°F)		 30°C
(86°F)		 30°C
(86°F)		 30°C
(86°F)		 31°C
(88°F)		 31°C
(89°F)		 31°C
(89°F)
Mean maximum 30°C
(86°F)		 30°C
(87°F)		 31°C
(88°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 31°C
(87°F)		 31°C
(87°F)
Average high 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)		 30°C
(85°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(84°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)
Daily mean 27°C
(81°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 27°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 28°C
(82°F)		 27°C
(81°F)
Average low 26°C
(79°F)		 26°C
(79°F)		 26°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(80°F)		 26°C
(79°F)
Mean minimum 24°C
(76°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(78°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 24°C
(76°F)
Minimum 23°C
(74°F)		 25°C
(76°F)		 25°C
(77°F)		 24°C
(76°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 23°C
(73°F)

Compare climate in Sihanoukville with other places

Compare temperature, precipitation, sunshine, UV index in Sihanoukville, Cambodia with other places around the world.

Monthly average precipitation in Sihanoukville, Cambodia §

Sihanoukville usually has the most precipitation in July, August and September, with an average of 28 rainy days and 565 mm (22.2 inches) of precipitation per month.The driest months in Sihanoukville are January, February and March. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sihanoukville, Cambodia.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) 50 (2.0) 36 (1.4) 59 (2.3) 116 (4.5) 324 (12.7) 423 (16.6) 568 (22.4) 606 (23.9) 521 (20.5) 430 (16.9) 151 (6.0) 64 (2.5)
Average precipitation days (≥ 1 mm) 10 10 17 21 29 27 29 28 27 28 18 11

Monthly sunshine hours in Sihanoukville, Cambodia §

The sunniest months in Sihanoukville are March, April and December, when the sun shines an average of 10 hours 24 minutes a day.Least sunny months in Sihanoukville: January, September and October receive an average of 8 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sihanoukville, Cambodia.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 259 300 332 315 308 273 285 284 259 264 292 310
Mean daily daylight hours 11h 33m 11h 46m 12h 3m 12h 21m 12h 35m 12h 43m 12h 39m 12h 26m 12h 9m 11h 52m 11h 37m 11h 30m

Solar UV radiation in Sihanoukville, Cambodia §

Sihanoukville 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, November and December are in the 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 Sihanoukville UV Index data.

Average daily maximum UV levels by month for Sihanoukville, Cambodia.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) 11 14 15 15 14 13 14 14 14 13 11 11