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Weather & Climate in Grande Rivière Noire, Mauritius
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grande Rivière Noire has a warm climate with an average annual temperature of 74°F (23°C). Winters average 77°F in January while summers reach 69°F in July / relatively mild seasonal variation. The area gets 353 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 59.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 26 feet.
Temperature
77°F Jan (25°C)
69°F Jul (21°C)
| Annual Average | 74.0°F |
| 37% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 353 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 298.8 sq mi (773.9 km²) |
| Population Density | 8/sq mi |
| Coordinates | -20.3603°N, 57.3661°W |
| Timezone | Indian/Mauritius |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.
| Feb 27, 2018 | 76 km ENE of Sainte-Rose, Reunion | M4.1 | 112 km | 14 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
35 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Garance | Category 3 | 115 mph | 195 km |
| 2024 | Belal | Category 2 | 81 mph | 136 km |
| 2023 | Freddy | Category 4 | 132 mph | 183 km |
| 2022 | Batsirai | Category 4 | 127 mph | 187 km |
| 2020 | Herold | Category 3 | 98 mph | 297 km |
| 2020 | Calvinia | Category 1 | 69 mph | 114 km |
| 2019 | Cilida | Category 4 | 109 mph | 271 km |
| 2018 | Fakir | Category 1 | 81 mph | 160 km |
| 2014 | Bejisa | Category 3 | 92 mph | 276 km |
| 2009 | Gael | Category 1 | 69 mph | 295 km |
| 2007 | Gamede | Category 2 | 92 mph | 249 km |
| 2005 | Hennie | Category 1 | 63 mph | 150 km |
| 2003 | Gerry | Category 3 | 104 mph | 151 km |
| 2003 | Crystal | Category 2 | 92 mph | 223 km |
| 2002 | Guillaume | Category 4 | 127 mph | 160 km |
| 2002 | Dina | Category 4 | 115 mph | 100 km |
| 2000 | Connie | Category 3 | 115 mph | 264 km |
| 2000 | Eline:leone | Category 1 | 69 mph | 206 km |
| 1999 | Davina | Category 3 | 81 mph | 45 km |
| 1998 | Anacelle | Category 4 | 86 mph | 171 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Fournaise, Piton de la (198 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Fournaise, Piton de la | Shield | 2,632 m (8,635 ft) | 2020 | 198 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 9.5 in | Warmest |
| February | 76°F (25°C) | 10.4 in | Wettest |
| March | 76°F (24°C) | 8.7 in | |
| April | 74°F (23°C) | 7.9 in | |
| May | 71°F (22°C) | 5.5 in | |
| June | 68°F (20°C) | 3.6 in | |
| July | 69°F (21°C) | 3.7 in | |
| August | 67°F (19°C) | 3.6 in | Coldest |
| September | 67°F (20°C) | 2.4 in | Driest |
| October | 70°F (21°C) | 2.4 in | |
| November | 72°F (22°C) | 3.1 in | |
| December | 75°F (24°C) | 6.6 in |
Grande Rivière Noire has a seasonal temperature swing of 10°F / from 67°F in August to 77°F in January. Total annual precipitation is 67.2 inches, with February being the wettest month (10.4") and September the driest (2.4").