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Monthly climate in Beau Vallon, Mauritius

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Beau Vallon features a tropical monsoon climate (Am). Temperatures typically range between 21 °C (70 °F) and 26 °C (79 °F) through the year, but rarely can drop to 17 °C (64 °F) or can rise to as high as 30 °C (85 °F). The average annual precipitation amounts to about 1238 mm (48.7 inches) and receives 231 rainy days on the 1 mm (0.04 inches) threshold annually. Beau Vallon enjoys an average of 4009 hours of sunshine throughout the year, and daylight varies from 10 hours 53 minutes to 13 hours 19 minutes per day.

Monthly average temperatures in Beau Vallon, Mauritius

The warmest months in Beau Vallon are January, February and March, with daily mean temperatures ranging from 26 to 26 °C (79 - 79 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 21 to 22 °C (70 - 71 °F) throughout the day. On average each year, Beau Vallon experiences 184 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 Beau Vallon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(85°F)		29°C
(85°F)		29°C
(84°F)		28°C
(83°F)		27°C
(81°F)		26°C
(78°F)		25°C
(77°F)		25°C
(77°F)		26°C
(78°F)		27°C
(80°F)		28°C
(83°F)		29°C
(85°F)
Mean maximum29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		27°C
(80°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		25°C
(77°F)		26°C
(79°F)		27°C
(81°F)		28°C
(83°F)
Average high27°C
(81°F)		27°C
(82°F)		28°C
(82°F)		26°C
(80°F)		25°C
(77°F)		24°C
(75°F)		23°C
(73°F)		23°C
(73°F)		23°C
(74°F)		24°C
(76°F)		25°C
(78°F)		27°C
(81°F)
Daily mean26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		25°C
(77°F)		24°C
(75°F)		22°C
(72°F)		21°C
(71°F)		21°C
(70°F)		22°C
(71°F)		23°C
(73°F)		24°C
(75°F)		25°C
(78°F)
Average low25°C
(76°F)		25°C
(77°F)		25°C
(77°F)		24°C
(75°F)		22°C
(73°F)		21°C
(71°F)		20°C
(69°F)		20°C
(68°F)		20°C
(69°F)		21°C
(71°F)		22°C
(73°F)		24°C
(75°F)
Mean minimum23°C
(74°F)		24°C
(75°F)		23°C
(74°F)		23°C
(73°F)		21°C
(70°F)		20°C
(69°F)		19°C
(66°F)		18°C
(65°F)		19°C
(67°F)		20°C
(68°F)		21°C
(69°F)		23°C
(73°F)
Minimum22°C
(72°F)		23°C
(74°F)		23°C
(73°F)		22°C
(71°F)		20°C
(68°F)		19°C
(67°F)		18°C
(65°F)		17°C
(64°F)		18°C
(65°F)		19°C
(67°F)		19°C
(66°F)		22°C
(72°F)

Compare climate in Beau Vallon with other places

Compare temperature, precipitation, sunshine, UV index in Beau Vallon, Mauritius with other places around the world.

Monthly average precipitation in Beau Vallon, Mauritius

Beau Vallon usually has the most precipitation in January, February and March, with an average of 24 rainy days and 183 mm (7.2 inches) of precipitation per month. The driest months in Beau Vallon are August, September and October. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Beau Vallon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)160 (6.3)188 (7.4)202 (7.9)149 (5.9)75 (3.0)57 (2.3)69 (2.7)50 (2.0)40 (1.6)46 (1.8)71 (2.8)131 (5.2)
Average precipitation days (≥ 1 mm)232426251717191314141524

Monthly sunshine hours in Beau Vallon, Mauritius

The sunniest months in Beau Vallon are October, November and December, when the sun shines an average of 12 hours 15 minutes a day. Least sunny months in Beau Vallon: January, June and July receive an average of 9 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Beau Vallon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours303330346316321297311324330364372391
Mean daily daylight hours13h 11m12h 45m12h 10m11h 35m11h 7m10h 53m11h 1m11h 25m11h 58m12h 33m13h 4m13h 19m

Solar UV radiation in Beau Vallon, Mauritius

Beau Vallon experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Beau Vallon UV Index data.

Average daily maximum UV levels by month for Beau Vallon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161614129781011131415