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Weather & Climate in Riaba, Equatorial Guinea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Riaba has a warm climate with an average annual temperature of 74°F (23°C). Winters average 74°F in January while summers reach 71°F in July / relatively mild seasonal variation. The area gets 161 sunny days per year, below the national average of 205. Annual precipitation totals 101.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 190 feet.
Temperature
74°F Jan (24°C)
71°F Jul (22°C)
| Annual Average | 73.5°F |
| 36% above US avg | |
| January Average | 74°F (24°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 161 days/yr |
Geography
| Elevation | 190 ft (58 m) |
| Area | 584.5 sq mi (1,513.8 km²) |
| Population Density | 2/sq mi |
| Coordinates | 3.3829°N, 8.7621°W |
| Timezone | Africa/Malabo |
Precipitation & Snow
Air Quality
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Mar 28, 1999 | 8 km NNW of Malabo, Equatorial Guinea | M4.9 | 49 km | 10 km |
| Mar 28, 1999 | 8 km SW of Malabo, Equatorial Guinea | M4.8 | 36 km | 10 km |
| Mar 27, 1999 | 19 km N of Malabo, Equatorial Guinea | M4.8 | 61 km | 10 km |
| Mar 27, 1999 | 20 km WNW of Malabo, Equatorial Guinea | M4.7 | 54 km | 10 km |
| Mar 27, 1999 | 19 km N of Malabo, Equatorial Guinea | M4.7 | 61 km | 10 km |
| Sep 20, 1990 | 20 km WNW of Buea, Cameroon | M4.7 | 98 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Cameroon (102 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Cameroon | Stratovolcano | 4,095 m (13,435 ft) | 2000 | 102 km |
| Tombel Graben | Pyroclastic cone(s) | 500 m (1,640 ft) | Unknown | 186 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 74°F (24°C) | 1.8 in | Driest |
| February | 75°F (24°C) | 3.2 in | Warmest |
| March | 75°F (24°C) | 5.8 in | |
| April | 75°F (24°C) | 8.0 in | |
| May | 74°F (24°C) | 10.9 in | |
| June | 73°F (23°C) | 12.0 in | |
| July | 71°F (22°C) | 10.6 in | Coldest |
| August | 71°F (22°C) | 11.3 in | |
| September | 72°F (22°C) | 15.6 in | Wettest |
| October | 73°F (23°C) | 14.1 in | |
| November | 74°F (23°C) | 5.7 in | |
| December | 74°F (23°C) | 2.1 in |
Riaba has a seasonal temperature swing of 4°F / from 71°F in July to 75°F in February. Total annual precipitation is 101.0 inches, with September being the wettest month (15.6") and January the driest (1.8").