Atlantique

Abomey-Calavi, Benin Climate

NASA POWER reanalysis for the half-degree grid cell around Abomey-Calavi, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

The warmest month is February, with an average high of 31°C; the coldest is August, with an average low of 23°C. A normal year brings 1290 mm of precipitation.

Temperature through the year

The normal daily high and low. The line marks today.

Normal daily high and low temperature at Abomey-Calavi through the year, in °C, with the record for each date.152025303540JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

Normals for Sep 24

Normal high
28°C
Normal low
24°C
Reanalysis high
29°Cin 2019
Reanalysis low
23°Cin 1996
Chance of a wet day
93%
Daylight
12 h 06 min

Month by month

Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.

MonthAvg highAvg lowWarmestColdestPrecipitationWet days
January30°C24°C33°C (1992)15°C (2015)19 mm6.2
February31°C25°C35°C (1998)18°C (2001)31 mm8.5
March30°C26°C35°C (1998)21°C (2004)78 mm18.6
April30°C26°C33°C (1998)23°C (1997)123 mm24.0
May29°C26°C31°C (2008)23°C (1996)167 mm27.9
June28°C25°C30°C (2018)23°C (1992)213 mm27.0
July27°C23°C29°C (2014)21°C (2004)164 mm24.8
August27°C23°C30°C (1998)21°C (1997)96 mm21.7
September28°C24°C30°C (2003)22°C (2001)174 mm27.0
October28°C24°C31°C (2018)22°C (1996)158 mm27.9
November29°C25°C32°C (1998)21°C (1992)48 mm12.0
December30°C24°C33°C (1992)19°C (2015)19 mm3.1
Year29°C24°C1290 mm229

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.

1290 mm in a normal year, most in June.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Abomey-Calavi, in percent.020406080100JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Abomey-Calavi.

The muggiest month is September, when 101 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January22°C76%1%8%11%12%47%22%
February23°C79%0%1%4%6%36%52%
March24°C83%0%0%1%1%17%81%
April25°C85%0%0%0%0%9%91%
May25°C87%0%0%0%0%12%88%
June24°C88%0%0%0%0%55%45%
July23°C88%0%0%0%0%97%3%
August22°C87%0%0%0%4%96%0%
September23°C88%0%0%0%1%93%7%
October24°C88%0%0%0%0%61%39%
November24°C84%0%0%1%2%46%52%
December22°C78%0%2%8%15%47%28%

Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is December, with the sky 35 percent covered on average; the cloudiest is July, at 77 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is August, averaging 14.8 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 9, with 12 h 30 min of daylight; the shortest is Jan 2, with 11 h 45 min.

Hours of daylight at Abomey-Calavi through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

Month pages

The weather in Abomey-Calavi in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.