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Weather & Climate in Fomboni, Comoros
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Fomboni has a warm climate with an average annual temperature of 80°F (27°C). Winters average 82°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 360 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 25.7 inches (drier than the 38-inch national average). The city sits at an elevation of 59 feet.
Temperature
82°F Jan (28°C)
78°F Jul (25°C)
| Annual Average | 80.4°F |
| 49% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 360 days/yr |
Geography
| Elevation | 59 ft (18 m) |
| Area | 10.7 sq mi (27.8 km²) |
| Population Density | 1,611/sq mi |
| Coordinates | -12.2876°N, 43.7434°W |
| Timezone | Indian/Comoro |
Precipitation & Snow
Air Quality
Earthquake History
9 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 | 12 km | 10 km |
| Dec 1, 1993 | 32 km W of Acoua, Mayotte | M5.2 | 124 km | 10 km |
| Sep 21, 2016 | 46 km WSW of Nioumachoua, Comoros | M5.1 | 52 km | 10 km |
| Apr 23, 1993 | 68 km SW of Kani Kéli, Mayotte | M5.0 | 145 km | 10 km |
| Mar 21, 2020 | 38 km E of Mramani, Comoros | M5.0 | 124 km | 10 km |
| Sep 9, 2011 | 20 km WNW of Mtsamboro, Mayotte | M5.0 | 130 km | 10 km |
| Apr 27, 1995 | 114 km SW of Madjeouéni, Comoros | M4.8 | 134 km | 10 km |
| Mar 12, 2014 | 1 km WNW of Maraharé, Comoros | M4.8 | 61 km | 10 km |
| Feb 8, 1996 | Comoros region | M4.2 | 48 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 | 98 km |
| 2025 | Dikeledi | Category 1 | 81 mph | 235 km |
| 2020 | Belna | Category 2 | 92 mph | 289 km |
| 2019 | Kenneth | Category 4 | 132 mph | 133 km |
| 2014 | Hellen | Category 4 | 138 mph | 146 km |
| 2008 | Jokwe | Category 3 | 109 mph | 253 km |
| 2008 | Fame | Category 1 | — | 299 km |
| 2005 | Ernest | Category 1 | 75 mph | 216 km |
| 1996 | Doloresse | Category 1 | 60 mph | 93 km |
| 1995 | Josta | Category 1 | 67 mph | 192 km |
| 1994 | Nadia | Category 1 | 63 mph | 221 km |
| 1984 | Kamisy | Category 2 | 83 mph | 177 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Karthala (72 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Karthala | Shield | 2,361 m (7,746 ft) | 2007 | 72 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 14.5 in | Warmest, Wettest |
| February | 78°F (26°C) | 11.5 in | |
| March | 78°F (26°C) | 10.0 in | |
| April | 78°F (25°C) | 9.1 in | |
| May | 76°F (25°C) | 7.1 in | |
| June | 74°F (23°C) | 5.2 in | |
| July | 78°F (25°C) | 4.5 in | |
| August | 72°F (22°C) | 3.0 in | Coldest |
| September | 73°F (23°C) | 2.0 in | Driest |
| October | 75°F (24°C) | 3.7 in | |
| November | 77°F (25°C) | 3.9 in | |
| December | 78°F (25°C) | 7.8 in |
Fomboni has a seasonal temperature swing of 10°F / from 72°F in August to 82°F in January. Total annual precipitation is 82.3 inches, with January being the wettest month (14.5") and September the driest (2.0").