Climate and average weather in Abomey-Calavi

In Abomey-Calavi, the weather is oppressive, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around June.

Best: mid July to early September

Over the course of the year, the temperature in Abomey-Calavi typically varies from 23°C to 31°C, and is rarely below 22°C or above 32°C. March is the hottest month of the year, while August is the coldest.

Based on the travel score, the best times of year to visit Abomey-Calavi for warm-weather activities are from early January to mid February and mid July to early September.

Hottest
Mar
31°
Coldest
Aug
23°
Wettest
Jun
215 mm
Driest
Jan
25 mm
Rain / yr
1219 mm
215 wet days
Daylight
11.6–12.4 h
shortest–longest
Elevation
11 m
6.4°N
Clearest
Dec
41% cloud

Abomey-Calavi is commune and city in Atlantique Department, Benin.

Density
593/km²
people per km²

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

Abomey-Calavi 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 July to early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Abomey-Calavi stay fairly even through the year, without a distinct hot or cool season. The warmest month is March, with an average high of 31°C and low of 26°C; the coolest is August, with an average low of 23°C and high of 27°C.

Days typically run about 5°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3025
Feb3126
Mar3126
Apr3126
May3025
Jun2824
Jul2724
Aug2723
Sep2824
Oct2924
Nov3025
Dec3025

How hot and cold Abomey-Calavi 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, Abomey-Calavi feels like about 39°C (around March 10). About 251 days a year carry some heat stress, peaking in March.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan35302525
Feb38312626
Mar39312626
Apr38312626
May36302525
Jun32282424
Jul30272424
Aug30272323
Sep31282424
Oct33292424
Nov36302525
Dec36302525

Average hourly temperature in Abomey-Calavi

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 March afternoons, near 31°C, and coldest before dawn in August, near 23°C.

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

Abomey-Calavi 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
Jan30° / 25°257.811.75.2
Feb31° / 26°379.411.84.5
Mar31° / 26°6615.7123.8
Apr31° / 26°9117.612.13.6
May30° / 25°16624.612.33.2
Jun28° / 24°21525.712.43.5
Jul27° / 24°1262112.34.6
Aug27° / 23°961712.25.1
Sep28° / 24°14122.7124.1
Oct29° / 24°15025.211.93.6
Nov30° / 25°741911.73.9
Dec30° / 25°339.211.65.1

Chance of rain

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

Abomey-Calavi gets about 1219 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.3 months, from around Apr 17 to Jul 24, peaking in June at about 87% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 25.

June is the wettest month by volume, with 215 mm over about 26 wet days; January is the driest, with 25 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 10 · 87%Dec 25 · 23%
Rain on a day (%)Rain days
Jan258
Feb349
Mar5116
Apr5918
May7925
Jun8626
Jul6821
Aug5617
Sep7523
Oct8025
Nov6319
Dec309

Monthly rainfall

Over a full year, Abomey-Calavi collects about 1219 mm of rain across 215 wet days — roughly 102 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 215 mm, while January is the driest at just 25 mm. The three wettest months alone bring about 44% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec25376691166215126961411507433
Rainfall (mm)Rain days
Jan258
Feb379
Mar6616
Apr9118
May16625
Jun21526
Jul12621
Aug9617
Sep14123
Oct15025
Nov7419
Dec339

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Abomey-Calavi, 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 25 and lasts for 5.4 months, ending around April 7. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 76% of the time on average.

The cloudier part of the year begins around April 8 and lasts for 6.6 months, ending around October 24. The cloudiest month is July, when it is overcast or mostly cloudy 90% 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 21 · 80%Jul 26 · 10%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan6535
Feb5545
Mar4159
Apr3169
May2278
Jun1585
Jul1090
Aug1288
Sep1684
Oct3070
Nov6040
Dec7624

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 3, brings about 12 h 24 min of light; the shortest, around January 1, only 11 h 36 min — a swing of roughly 0 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.77:106:50
Feb11.87:116:59
Mar12.07:026:59
Apr12.16:476:55
May12.36:386:56
Jun12.46:407:02
Jul12.36:467:06
Aug12.26:487:01
Sep12.06:446:46
Oct11.96:406:31
Nov11.76:456:27
Dec11.66:586:36

Sunny days

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

Abomey-Calavi averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 18 days.

The sunnier stretch runs 4.3 months, from around Nov 2 to Mar 13. The sunniest month is December, with roughly 17 sunny days (bright).

The greyest month is July, down near 0 sunny days — about 99% fewer than the December peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantDec 2218 daysJul 170 days
Sunny daysSky
Jan13Mixed
Feb10Mixed
Mar6Gloomy
Apr4Gloomy
May2Gloomy
Jun1Gloomy
Jul0Gloomy
Aug0Gloomy
Sep1Gloomy
Oct3Gloomy
Nov9Mixed
Dec17Bright

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.

Abomey-Calavi is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is February, when it feels muggy, oppressive or miserable about 99% of the time. Even in January, the mildest month, the air is dry or comfortable only 5% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan14483746
Feb00122472
Mar00011188
Apr00001090
May00002674
Jun00007921
Jul0001981
Aug0004960
Sep0000991
Oct00008020
Nov00004258
Dec01243954

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.

Across the year, average wind speed in Abomey-Calavi is typically calm, near 11 km/h, and varies little with the seasons.

The windier part of the year lasts 3.0 months, from around Jun 19 to Sep 18. The windiest month is August, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Sep 19 to Feb 1, with October the calmest month at about 9 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeAug 2 · 14 km/hOct 31 · 9 km/h
Wind speed (km/h)Feels
Jan10calm
Feb12calm
Mar12light breeze
Apr12calm
May10calm
Jun11calm
Jul13light breeze
Aug13light breeze
Sep11calm
Oct9calm
Nov9calm
Dec9calm

Hazard calendar for Abomey-Calavi

In seasonPeak

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

Abomey-Calavi sees seasonal dust haze (January–April), heaviest in February.

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

Best time to visit Abomey-Calavi

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late August, Abomey-Calavi is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 times of year to visit Abomey-Calavi for general outdoor tourist activities run from mid July to early September and again from late November to mid February, with a peak score in the first week of January.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebest timetravel scoretemperaturecloudsprecipitationJan 1 · 5.4

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
Jan5.2fair
Feb4.4fair
Mar3.8fair
Apr3.6fair
May3.3poor
Jun3.5fair
Jul4.6fair
Aug5.1fair
Sep4.1fair
Oct3.6fair
Nov3.9fair
Dec5.1fair

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 Abomey-Calavi for hot-weather activities is from late November to late February, with a peak score in the last week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 26 · 7.5

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 Abomey-Calavi, 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.

Abomey-Calavi packs about the same all year — highs hold near 31°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In March, Abomey-Calavi sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

Sea temperature near Abomey-Calavi

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea offshore is warmest in May at about 29°C and coldest in August near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul26Warm
Aug25Warm
Sep26Warm
Oct27Warm
Nov29Tropical
Dec28Tropical

UV index (midday) in Abomey-Calavi 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 Abomey-Calavi peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highApr 10UV 13Dec 17UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec8Very high

Average hourly UV index in Abomey-Calavi

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)
Jan74.5
Feb7.55
Mar86
Apr86
May86
Jun85.5
Jul7.55.5
Aug7.55
Sep86
Oct7.55.5
Nov74.5
Dec6.54

Air quality in Abomey-Calavi 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 Abomey-Calavi is worst in January — around 102 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (August, 25 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 16100 µg/m³Aug 1425 µg/m³
PM2.5 (µg/m³)Level
Jan102Unhealthy
Feb86Unhealthy
Mar47Poor
Apr44Poor
May33Moderate
Jun30Moderate
Jul27Moderate
Aug25Moderate
Sep29Moderate
Oct39Poor
Nov46Poor
Dec89Unhealthy
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Abomey-Calavi 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. Abomey-Calavi banks about 6,245 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)
Jan544
Feb515
Mar577
Apr550
May546
Jun492
Jul482
Aug471
Sep474
Oct517
Nov528
Dec548

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.

Abomey-Calavi receives about 4.8 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.0 and 5.5 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseMar 75.5 kWhJun 284.0 kWh
Solar energy (kWh/m²)Level
Jan5.3Bright
Feb5.5Bright
Mar5.5Bright
Apr5.3Bright
May4.8Bright
Jun4.1Bright
Jul4.1Bright
Aug4.2Bright
Sep4.3Bright
Oct4.6Bright
Nov4.9Bright
Dec5.0Bright

Where is Abomey-Calavi?

Abomey-Calavi sits at 6.4°N, 2.4°E, 11 m above sea level, in Benin. The nearest listed city is Ganvié, 4.0 km away.

Topography around Abomey-Calavi

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

Within 3 km, the terrain around Abomey-Calavi has only modest variations in elevation — a maximum elevation change of 32 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 60 m; within 80 km, only modest variations in elevation — a maximum elevation change of 184 m.

The land around Abomey-Calavi is covered by artificial surfaces (49%) and water (32%) within 3 km, artificial surfaces (28%) and water (28%) within 16 km, and trees (38%) and water (32%) within 80 km.

3 km
32 m
16 km
60 m
80 km
184 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Ganvié 4.0 km · Godomè 7.0 km · Cotonou 12 km · Zinvié 19 km · Ekpé 21 km · Porto-Novo 28 km · Missérété 29 km · Semi 30 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 Abomey-Calavi (6.4485°, 2.3557°, elevation 11 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).