Collines

Dassa-Zoumè, Benin Climate

NASA POWER reanalysis for the half-degree grid cell around Dassa-Zoumè, 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 35°C; the coldest is January, with an average low of 19°C. A normal year brings 1372 mm of precipitation.

Temperature through the year

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

Normal daily high and low temperature at Dassa-Zoumè through the year, in °C, with the record for each date.1020304050JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

Normals for Sep 25

Normal high
29°C
Normal low
22°C
Reanalysis high
31°Cin 1998
Reanalysis low
21°Cin 2013
Chance of a wet day
97%
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
January33°C19°C38°C (2016)12°C (1992)12 mm3.1
February35°C22°C41°C (2002)14°C (2020)20 mm5.7
March34°C24°C41°C (1998)14°C (1993)53 mm15.5
April33°C24°C40°C (1998)21°C (2017)111 mm24.0
May32°C23°C38°C (2016)21°C (2006)143 mm27.9
June30°C22°C35°C (1993)20°C (2018)186 mm30.0
July29°C22°C34°C (2014)19°C (1991)229 mm27.9
August29°C21°C32°C (2013)18°C (2012)208 mm27.9
September29°C22°C32°C (1992)20°C (1992)243 mm30.0
October30°C22°C33°C (2016)18°C (1996)143 mm24.8
November31°C21°C36°C (2001)15°C (2006)18 mm3.0
December32°C19°C37°C (2001)12°C (2002)6 mm0.0
Year31°C22°C1372 mm220

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.

1372 mm in a normal year, most in September.

Chance of a wet day

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

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Dassa-Zoumè.

The muggiest month is April, when 100 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January16°C62%26%18%15%26%16%0%
February18°C63%16%9%11%28%36%0%
March21°C71%3%2%3%20%71%2%
April23°C77%0%0%0%3%88%9%
May23°C82%0%0%0%0%83%17%
June23°C85%0%0%0%0%97%3%
July22°C87%0%0%0%1%99%0%
August22°C87%0%0%0%6%94%0%
September23°C87%0%0%0%1%99%0%
October23°C87%0%0%0%1%98%1%
November21°C79%0%1%9%21%68%0%
December18°C67%8%20%24%26%22%0%

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 28 percent covered on average; the cloudiest is August, at 81 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 March, averaging 10.4 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 13, with 12 h 35 min of daylight; the shortest is Dec 16, with 11 h 40 min.

Hours of daylight at Dassa-Zoumè 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 Dassa-Zoumè 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.