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Weather & Climate in Sima, Comoros
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sima has a warm climate with an average annual temperature of 81°F (27°C). Winters average 82°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 361 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 27.5 inches (drier than the 38-inch national average). The city sits at an elevation of 394 feet.
Temperature
82°F Jan (28°C)
78°F Jul (26°C)
| Annual Average | 80.7°F |
| 49% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 361 days/yr |
Geography
| Elevation | 394 ft (120 m) |
| Area | 122.4 sq mi (317.1 km²) |
| Population Density | 71/sq mi |
| Coordinates | -12.1956°N, 44.2767°W |
| Timezone | Indian/Comoro |
Precipitation & Snow
Air Quality
Earthquake History
82 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| May 21, 2000 | 5 km N of Hoani, Comoros | M5.2 | 66 km | 10 km |
| Dec 1, 1993 | 32 km W of Acoua, Mayotte | M5.2 | 84 km | 10 km |
| Sep 21, 2016 | 46 km WSW of Nioumachoua, Comoros | M5.1 | 110 km | 10 km |
| Jan 13, 2019 | 12 km E of Pamandzi, Mayotte | M5.1 | 138 km | 10 km |
| Mar 13, 2019 | 14 km ENE of Pamandzi, Mayotte | M5.1 | 137 km | 10 km |
| Apr 5, 2019 | 20 km ENE of Pamandzi, Mayotte | M5.1 | 139 km | 10 km |
| May 14, 2019 | 19 km ESE of Pamandzi, Mayotte | M5.0 | 146 km | 10 km |
| Apr 23, 1993 | 68 km SW of Kani Kéli, Mayotte | M5.0 | 128 km | 10 km |
| Mar 21, 2020 | 38 km E of Mramani, Comoros | M5.0 | 68 km | 10 km |
| Sep 9, 2011 | 20 km WNW of Mtsamboro, Mayotte | M5.0 | 82 km | 10 km |
| Jan 9, 2019 | 20 km ENE of Pamandzi, Mayotte | M4.9 | 142 km | 10 km |
| Jan 20, 2019 | 14 km ESE of Pamandzi, Mayotte | M4.9 | 141 km | 10 km |
| May 3, 2019 | 16 km ESE of Pamandzi, Mayotte | M4.8 | 143 km | 10 km |
| Feb 26, 2019 | 35 km ENE of Pamandzi, Mayotte | M4.8 | 149 km | 10 km |
| Mar 12, 2014 | 1 km WNW of Maraharé, Comoros | M4.8 | 4 km | 10 km |
| Mar 31, 2019 | 8 km ESE of Pamandzi, Mayotte | M4.7 | 137 km | 10 km |
| Jun 1, 2018 | 17 km ESE of Bandrélé, Mayotte | M4.7 | 144 km | 10 km |
| Jun 2, 2018 | 22 km ESE of Bandrélé, Mayotte | M4.7 | 150 km | 10 km |
| May 30, 2018 | 22 km SSE of Kani Kéli, Mayotte | M4.7 | 145 km | 10 km |
| Mar 18, 2019 | 20 km ESE of Bandrélé, Mayotte | M4.7 | 147 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
12 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Chido | Category 4 | 121 mph | 88 km |
| 2025 | Dikeledi | Category 1 | 69 mph | 251 km |
| 2020 | Belna | Category 3 | 92 mph | 232 km |
| 2019 | Kenneth | Category 4 | 132 mph | 123 km |
| 2014 | Hellen | Category 4 | 138 mph | 168 km |
| 2008 | Jokwe | Category 3 | 109 mph | 277 km |
| 2005 | Ernest | Category 1 | 75 mph | 242 km |
| 1996 | Doloresse | Category 1 | 60 mph | 151 km |
| 1995 | Josta | Category 1 | 67 mph | 224 km |
| 1994 | Nadia | Category 1 | 63 mph | 222 km |
| 1984 | Andry | Category 4 | 106 mph | 266 km |
| 1984 | Kamisy | Category 2 | 83 mph | 146 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Karthala (109 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Karthala | Shield | 2,361 m (7,746 ft) | 2007 | 109 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 14.1 in | Warmest, Wettest |
| February | 79°F (26°C) | 11.3 in | |
| March | 79°F (26°C) | 9.4 in | |
| April | 78°F (26°C) | 6.7 in | |
| May | 77°F (25°C) | 4.7 in | |
| June | 75°F (24°C) | 3.2 in | |
| July | 78°F (26°C) | 2.6 in | |
| August | 73°F (23°C) | 1.8 in | Coldest, Driest |
| September | 74°F (23°C) | 1.8 in | |
| October | 75°F (24°C) | 3.5 in | |
| November | 77°F (25°C) | 3.7 in | |
| December | 78°F (26°C) | 7.6 in |
Sima has a seasonal temperature swing of 9°F / from 73°F in August to 82°F in January. Total annual precipitation is 70.5 inches, with January being the wettest month (14.1") and August the driest (1.8").