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Monthly climate in Salavan, Laos

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Salavan features a tropical monsoon climate (Am). Temperatures typically range between 23 °C (73 °F) and 28 °C (82 °F) through the year, but rarely can drop to 10 °C (50 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 1740 mm (68.5 inches) and receives 169 rainy days on the 1 mm (0.04 inches) threshold annually. Salavan enjoys an average of 3423 hours of sunshine throughout the year, and daylight varies from 11 hours 11 minutes to 13 hours 2 minutes per day.

Monthly average temperatures in Salavan, Laos

The warmest months in Salavan are March, April and May, with daily mean temperatures ranging from 28 to 28 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 23 to 25 °C (73 - 77 °F) throughout the day. On average each year, Salavan experiences 319 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 Salavan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(96°F)		37°C
(99°F)		39°C
(102°F)		38°C
(102°F)		39°C
(102°F)		36°C
(97°F)		35°C
(95°F)		33°C
(92°F)		33°C
(92°F)		36°C
(97°F)		35°C
(95°F)		34°C
(94°F)
Mean maximum34°C
(93°F)		35°C
(96°F)		37°C
(100°F)		37°C
(100°F)		36°C
(98°F)		34°C
(94°F)		33°C
(92°F)		32°C
(91°F)		33°C
(92°F)		34°C
(93°F)		33°C
(92°F)		33°C
(91°F)
Average high30°C
(87°F)		32°C
(90°F)		34°C
(94°F)		34°C
(94°F)		33°C
(92°F)		32°C
(89°F)		30°C
(86°F)		30°C
(86°F)		31°C
(87°F)		31°C
(88°F)		30°C
(87°F)		29°C
(85°F)
Daily mean23°C
(74°F)		25°C
(77°F)		28°C
(82°F)		28°C
(82°F)		28°C
(82°F)		27°C
(81°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		25°C
(77°F)		23°C
(73°F)
Average low18°C
(64°F)		18°C
(65°F)		22°C
(72°F)		23°C
(74°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		22°C
(72°F)		20°C
(69°F)		18°C
(65°F)
Mean minimum14°C
(57°F)		14°C
(58°F)		19°C
(66°F)		19°C
(67°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		21°C
(71°F)		18°C
(65°F)		17°C
(62°F)		13°C
(56°F)
Minimum10°C
(50°F)		12°C
(53°F)		16°C
(61°F)		17°C
(62°F)		20°C
(68°F)		22°C
(71°F)		22°C
(71°F)		22°C
(71°F)		20°C
(69°F)		17°C
(63°F)		16°C
(61°F)		11°C
(52°F)

Compare climate in Salavan with other places

Compare temperature, precipitation, sunshine, UV index in Salavan, Laos with other places around the world.

Monthly average precipitation in Salavan, Laos

Salavan usually has the most precipitation in July, August and September, with an average of 27 rainy days and 360 mm (14.2 inches) of precipitation per month. The driest months in Salavan are January, February and December. On average, 6 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Salavan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)4 (0.2)6 (0.2)27 (1.1)63 (2.5)119 (4.7)191 (7.5)387 (15.3)345 (13.6)348 (13.7)176 (6.9)65 (2.5)8 (0.3)
Average precipitation days (≥ 1 mm)1051322242730251561

Monthly sunshine hours in Salavan, Laos

The sunniest months in Salavan are March, May and December, when the sun shines an average of 10 hours 2 minutes a day. Least sunny months in Salavan: January, July and August receive an average of 8 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Salavan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours257295318306307287257252268273290308
Mean daily daylight hours11h 17m11h 36m12h 2m12h 28m12h 51m13h 2m12h 56m12h 37m12h 11m11h 45m11h 23m11h 11m

Solar UV radiation in Salavan, Laos

Salavan experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 15 - 15, 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 Salavan UV Index data.

Average daily maximum UV levels by month for Salavan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10131515151415141413109