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Monthly climate in Grande Riviere Noire, Mauritius

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grande Riviere Noire features a tropical savanna climate (As). Temperatures typically range between 22 °C (72 °F) and 27 °C (81 °F) through the year, but rarely can drop to 19 °C (67 °F) or can rise to as high as 30 °C (87 °F). The average annual precipitation amounts to about 728 mm (28.6 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually. Grande Riviere Noire enjoys an average of 4005 hours of sunshine throughout the year, and daylight varies from 10 hours 54 minutes to 13 hours 19 minutes per day.

Monthly average temperatures in Grande Riviere Noire, Mauritius

The warmest months in Grande Riviere Noire are January, February and March, with daily mean temperatures ranging from 27 to 27 °C (80 - 81 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 22 to 23 °C (72 - 73 °F) throughout the day. On average each year, Grande Riviere Noire experiences 229 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 Grande Riviere Noire. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(86°F)		30°C
(87°F)		30°C
(87°F)		30°C
(86°F)		28°C
(83°F)		27°C
(80°F)		26°C
(79°F)		26°C
(78°F)		26°C
(80°F)		27°C
(81°F)		28°C
(83°F)		30°C
(86°F)
Mean maximum30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		29°C
(84°F)		28°C
(82°F)		26°C
(79°F)		25°C
(78°F)		25°C
(77°F)		26°C
(78°F)		27°C
(80°F)		28°C
(82°F)		29°C
(85°F)
Average high28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		27°C
(82°F)		26°C
(79°F)		25°C
(77°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		25°C
(78°F)		26°C
(80°F)		28°C
(82°F)
Daily mean27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		26°C
(79°F)		25°C
(77°F)		23°C
(74°F)		22°C
(73°F)		22°C
(72°F)		23°C
(73°F)		24°C
(75°F)		25°C
(77°F)		26°C
(80°F)
Average low25°C
(78°F)		26°C
(78°F)		26°C
(79°F)		25°C
(77°F)		24°C
(75°F)		22°C
(73°F)		21°C
(71°F)		21°C
(70°F)		21°C
(71°F)		22°C
(72°F)		23°C
(75°F)		25°C
(77°F)
Mean minimum24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		24°C
(75°F)		22°C
(72°F)		22°C
(71°F)		20°C
(68°F)		20°C
(68°F)		20°C
(69°F)		21°C
(70°F)		22°C
(72°F)		24°C
(75°F)
Minimum24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		23°C
(73°F)		21°C
(70°F)		21°C
(69°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		20°C
(69°F)		20°C
(68°F)		23°C
(74°F)

Compare climate in Grande Riviere Noire with other places

Compare temperature, precipitation, sunshine, UV index in Grande Riviere Noire, Mauritius with other places around the world.

Monthly average precipitation in Grande Riviere Noire, Mauritius

Grande Riviere Noire usually has the most precipitation in January, February and March, with an average of 17 rainy days and 133 mm (5.2 inches) of precipitation per month. The driest months in Grande Riviere Noire are June, August and September. On average, 18 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grande Riviere Noire. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)143 (5.6)133 (5.2)123 (4.8)84 (3.3)39 (1.5)21 (0.8)21 (0.8)19 (0.7)13 (0.5)30 (1.2)36 (1.4)67 (2.6)
Average precipitation days (≥ 1 mm)171917156343391016

Monthly sunshine hours in Grande Riviere Noire, Mauritius

The sunniest months in Grande Riviere Noire are October, November and December, when the sun shines an average of 12 hours 15 minutes a day. Least sunny months in Grande Riviere Noire: January, June and July receive an average of 9 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grande Riviere Noire. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours303329346314320295311324329363372392
Mean daily daylight hours13h 11m12h 44m12h 10m11h 36m11h 7m10h 54m11h 1m11h 25m11h 58m12h 33m13h 4m13h 19m

Solar UV radiation in Grande Riviere Noire, Mauritius

Grande Riviere Noire experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 14 - 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 Grande Riviere Noire UV Index data.

Average daily maximum UV levels by month for Grande Riviere Noire. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)161614129781011121414