Climate and average weather in Dassa-Zoumè

In Dassa-Zoumè, the summers are humid, sweltering, fairly dry, and partly cloudy and the winters are hot and mostly cloudy.

Best: mid June to late January

Over the course of the year, the temperature in Dassa-Zoumè typically varies from 22°C to 35°C, and is rarely below 18°C or above 37°C. February is the hottest month of the year, while August is the coldest.

Based on the travel score, the best time of year to visit Dassa-Zoumè for warm-weather activities is from mid June to late January.

Hottest
Feb
35°
Coldest
Aug
23°
Wettest
Aug
181 mm
Driest
Dec
5 mm
Rain / yr
1081 mm
159 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
156 m
7.8°N
Clearest
Dec
36% cloud

Dassa-Zoumè is commune and city in Collines Department, Benin.

Density
17/km²
people per km²
Founded
1200

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Dassa-Zoumè weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid June to late January.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Dassa-Zoumè, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Dassa-Zoumè stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 35°C and low of 24°C; the coolest is August, with an average low of 23°C and high of 29°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 12°C) in January.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3422
Feb3524
Mar3525
Apr3425
May3324
Jun3123
Jul3023
Aug2923
Sep3023
Oct3223
Nov3423
Dec3423

How hot and cold Dassa-Zoumè really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Dassa-Zoumè feels like about 41°C (around March 31). About 356 days a year carry some heat stress, and 75 of them tip into dangerous heat (feels-like above 39°C), peaking in March.

20°25°30°35°40°45°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan35342222
Feb38352424
Mar40352525
Apr40342525
May38332424
Jun35312323
Jul33302323
Aug32292323
Sep34302323
Oct36322323
Nov38342323
Dec36342223

Average hourly temperature in Dassa-Zoumè

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on February afternoons, near 35°C, and coldest before dawn in August, near 23°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Dassa-Zoumè weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 22°61.311.63.7
Feb35° / 24°173.211.72.7
Mar35° / 25°49911.92.3
Apr34° / 25°871412.22.5
May33° / 24°12919.112.32.7
Jun31° / 23°1502212.43.1
Jul30° / 23°16923.412.43.5
Aug29° / 23°18122.412.33.7
Sep30° / 23°17523123.3
Oct32° / 23°9616.511.83.5
Nov34° / 23°184.211.63.6
Dec34° / 23°51.311.63.8

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Dassa-Zoumè gets about 1081 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 6.3 months, from around Apr 13 to Oct 22, peaking in September at about 80% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 26.

August is the wettest month by volume, with 181 mm over about 22 wet days; December is the driest, with 5 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 6 · 80%Dec 26 · 2%
Rain on a day (%)Rain days
Jan41
Feb123
Mar309
Apr4514
May6119
Jun7322
Jul7523
Aug7322
Sep7623
Oct5217
Nov164
Dec41

Monthly rainfall

Over a full year, Dassa-Zoumè collects about 1081 mm of rain across 159 wet days — roughly 90 mm in an average month.

It doesn’t fall evenly. August is the wettest month with 181 mm, while December is the driest at just 5 mm. The three wettest months alone bring about 49% of the year’s total.

050100150200JanFebMarAprMayJunJulAugSepOctNovDec617498712915016918117596185
Rainfall (mm)Rain days
Jan61
Feb173
Mar499
Apr8714
May12919
Jun15022
Jul16923
Aug18122
Sep17523
Oct9617
Nov184
Dec51

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Dassa-Zoumè, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around October 24 and lasts for 4.8 months, ending around March 18. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 77% of the time on average.

The cloudier part of the year begins around April 5 and lasts for 6.6 months, ending around October 23. The cloudiest month is August, when it is overcast or mostly cloudy 94% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecDec 23 · 81%Aug 11 · 5%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan6931
Feb5941
Mar3961
Apr3070
May2080
Jun1684
Jul991
Aug694
Sep1486
Oct2971
Nov6238
Dec7723

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 19, brings about 12 h 30 min of light; the shortest, around December 19, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.67:136:48
Feb11.77:136:58
Mar11.97:036:59
Apr12.26:466:57
May12.36:376:58
Jun12.46:387:05
Jul12.46:457:09
Aug12.36:487:03
Sep12.06:446:47
Oct11.86:426:31
Nov11.66:476:26
Dec11.67:016:34

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Dassa-Zoumè averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 20 days.

The sunnier stretch runs 4.3 months, from around Nov 2 to Mar 11. The sunniest month is December, with roughly 18 sunny days (bright).

The greyest month is July, down near 0 sunny days — about 100% fewer than the December peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantDec 2420 daysJul 90 days
Sunny daysSky
Jan16Bright
Feb12Mixed
Mar6Gloomy
Apr4Gloomy
May2Gloomy
Jun1Gloomy
Jul0Gloomy
Aug0Gloomy
Sep0Gloomy
Oct2Gloomy
Nov12Mixed
Dec19Bright

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Dassa-Zoumè, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 9.0 months, from around March 2 to December 1. The muggiest month is April, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around December 2 to March 1, and January is the most comfortable month — the air is dry or comfortable 30% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 8 · 35%Apr 5 · 0%miserableoppressivemuggyhumiddrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan236924370
Feb103618612
Mar2116829
Apr00007524
May00007228
Jun0000909
Jul0003970
Aug0007930
Sep0000991
Oct0001954
Nov01111843
Dec116727480

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Dassa-Zoumè is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 1 · 8 km/hOct 9 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb7calm
Mar8calm
Apr8calm
May7calm
Jun7calm
Jul7calm
Aug7calm
Sep6calm
Oct5calm
Nov6calm
Dec6calm

Hazard calendar for Dassa-Zoumè

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Dassa-Zoumè's monsoon runs April–October, when most of the year's rain falls.

Dassa-Zoumè sees seasonal dust haze (January–April), heaviest in February.

Monsoon
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Dassa-Zoumè

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Dassa-Zoumè throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late June, Dassa-Zoumè is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Dassa-Zoumè for general outdoor tourist activities is from late June to late January, with a peak score in the first week of January.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationJan 1 · 4.0

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan3.7fair
Feb2.7poor
Mar2.3poor
Apr2.5poor
May2.8poor
Jun3.1poor
Jul3.5poor
Aug3.7fair
Sep3.3poor
Oct3.5poor
Nov3.6fair
Dec3.8fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Dassa-Zoumè for hot-weather activities is from early November to mid February, with a peak score in the last week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 27 · 7.7

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Dassa-Zoumè, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around February (highs near 35°C), the essentials are light clothes and sun protection. In the cold season around August (highs near 29°C), pack light clothes and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Dassa-Zoumè sees daytime highs around 35°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

UV index (midday) in Dassa-Zoumè by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Dassa-Zoumè peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 11UV 13Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec7High

Average hourly UV index in Dassa-Zoumè

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in April the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 6 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan74
Feb74.5
Mar86
Apr86
May85.5
Jun85.5
Jul85.5
Aug7.55.5
Sep86
Oct7.55.5
Nov74.5
Dec63

Air quality in Dassa-Zoumè by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Dassa-Zoumè is worst in January — around 97 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (August, 23 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1796 µg/m³Aug 1323 µg/m³
PM2.5 (µg/m³)Level
Jan97Unhealthy
Feb87Unhealthy
Mar46Poor
Apr42Poor
May28Moderate
Jun26Moderate
Jul24Moderate
Aug23Moderate
Sep26Moderate
Oct35Moderate
Nov43Poor
Dec85Unhealthy
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Dassa-Zoumè is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Dassa-Zoumè banks about 6,532 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan562
Feb552
Mar623
Apr582
May569
Jun512
Jul501
Aug489
Sep492
Oct534
Nov551
Dec564

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Dassa-Zoumè receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.9 and 5.9 kWh/m².

The brighter stretch of the year lasts 6.6 months, from around Oct 30 to May 19. The brightest month is February, averaging about 5.9 kWh/m² (bright).

The dimmest month is August, down near 3.9 kWh/m² — roughly 33% less than the February peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseFeb 225.9 kWhAug 123.9 kWh
Solar energy (kWh/m²)Level
Jan5.7Bright
Feb5.9Bright
Mar5.8Bright
Apr5.6Bright
May5.0Bright
Jun4.4Bright
Jul4.1Bright
Aug3.9Moderate
Sep4.3Bright
Oct4.7Bright
Nov5.3Bright
Dec5.4Bright

Where is Dassa-Zoumè?

Dassa-Zoumè sits at 7.8°N, 2.2°E, 156 m above sea level, in Benin. The nearest listed city is Glazoué, 25 km away.

SavéDjidjaKpozounCovéKétouBohicon

Topography around Dassa-Zoumè

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Dassa-Zoumè.

Within 3 km, the terrain around Dassa-Zoumè has significant variations in elevation — a maximum elevation change of 268 m around an average of 162 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 378 m; within 80 km, significant variations in elevation — a maximum elevation change of 526 m.

The land around Dassa-Zoumè is covered by trees (27%), shrubs (24%) and cropland (23%) within 3 km, shrubs (44%), cropland (22%) and trees (20%) within 16 km, and shrubs (44%) and trees (32%) within 80 km.

3 km
268 m
16 km
378 m
80 km
526 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Glazoué 25 km · Savalou 30 km · Savé 46 km · Djidja 53 km · Kpozoun 58 km · Cové 61 km · Kétou 63 km · Bohicon 65 km

Benin travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$1,658
2025
Happiness
4.4 / 10
World Happiness, 2025
Safe drinking water
18%
of population, 2024
Homicide rate
1.1
per 100k, 2017
Road deaths
26.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 406
Religion
Muslim 28%Roman Catholic 26%Protestant 14%Vodoun 12%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Dassa-Zoumè (7.75°, 2.1833°, elevation 156 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).