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Weather & Climate in Grand-Popo, Benin
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grand-Popo 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 263 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 40.2 inches. The city sits at an elevation of 13 feet.
Temperature
82°F Jan (28°C)
78°F Jul (26°C)
| Annual Average | 81.1°F |
| 50% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 263 days/yr |
Geography
| Elevation | 13 ft (4 m) |
| Area | 271.4 sq mi (703.0 km²) |
| Population Density | 36/sq mi |
| Coordinates | 6.2804°N, 1.8225°W |
| Timezone | Africa/Porto-Novo |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Sep 11, 2009 | 13 km NNE of Abomey-Calavi, Benin | M4.4 | 72 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 0.3 in | Driest |
| February | 84°F (29°C) | 1.4 in | |
| March | 84°F (29°C) | 3.1 in | Warmest |
| April | 83°F (28°C) | 4.7 in | |
| May | 82°F (28°C) | 6.6 in | |
| June | 80°F (27°C) | 8.3 in | Wettest |
| July | 78°F (26°C) | 3.5 in | |
| August | 78°F (25°C) | 1.7 in | Coldest |
| September | 79°F (26°C) | 4.0 in | |
| October | 80°F (27°C) | 4.4 in | |
| November | 82°F (28°C) | 1.5 in | |
| December | 82°F (28°C) | 0.8 in |
Grand-Popo has a seasonal temperature swing of 6°F / from 78°F in August to 84°F in March. Total annual precipitation is 40.2 inches, with June being the wettest month (8.3") and January the driest (0.3").