Kérou weather in December

In December, Kérou sees average daytime highs of 33°C and overnight lows near 19°C, with 0 mm of rain across 0 wet days and about 11.4 hours of daylight. It is the 6th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 32°C by the end. The sky is clear or mostly clear about 69% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of December to 11 h 24 min by month's end. Set against the rest of the year, December is Kérou's 1st-clearest and 3rd-windiest month. For the whole year in context, see Kérou's year-round climate.

Daytime high
33°
6th warmest
Overnight low
19°
1st coldest
Rainfall
0 mm
0 wet days
Daylight
11 h 24 min
7:07 AM – 6:29 PM
Cloud cover
27%
1st clearest
Wind
9 km/h
3rd windiest
Solar energy
5.85 kWh/m²
Travel score
4.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 32°C by the end.

A typical December day in Kérou reaches about 33°C in the afternoon and slips back to 19°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13420
23420
33419
43419
53419
63419
73419
83419
93419
103419
113419
123419
133319
143319
153319
163319
173319
183319
193319
203319
213319
223319
233319
243319
253319
263319
273219
283219
293219
303219
313219

How December really feels in Kérou

Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kérou weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 19°10.111.44.8
Feb35° / 22°20.511.63.0
Mar38° / 24°91.911.91.5
Apr37° / 26°378.312.21.5
May35° / 25°901612.52.3
Jun32° / 23°11118.912.63.1
Jul30° / 23°19724.112.63.4
Aug29° / 22°27626.812.43.3
Sep30° / 22°18622.212.13.4
Oct33° / 22°5810.311.83.6
Nov35° / 20°10.411.53.5
Dec33° / 19°0011.44.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
27921
37921
47921
57921
67921
77921
88020
98020
108119
118218
128218
138218
148218
158416
168416
178416
188515
198515
208515
218614
228614
238713
248713
258713
268713
278614
288614
298614
308614
318515

Chance of precipitation in December

Any precipitation

Kérou gets around 0 mm of rain over 0 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 0% and peaks near 0% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
185852
287841
388741
489731
590631
690631
792530
893520
994420
1094420
1195320
1295320
1395320
1497210
1597210
1697210
1797210
1897210
1998110
2098110
2198110
2298110
2398110
2498110
2599100
26100000
27100000
28100000
29100000
30100000
31100000

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 24 min at the start of December to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:59 AM to 7:14 AM, and sunset from 6:24 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:596:24
211.46:596:24
311.47:006:24
411.47:016:24
511.47:016:25
611.47:026:25
711.47:026:25
811.47:036:26
911.47:036:26
1011.47:046:26
1111.47:046:27
1211.47:056:27
1311.47:056:28
1411.47:066:28
1511.47:066:28
1611.47:076:29
1711.47:076:29
1811.47:086:30
1911.47:086:30
2011.47:096:31
2111.47:096:31
2211.47:106:32
2311.47:106:32
2411.47:116:32
2511.47:116:33
2611.47:116:33
2711.47:126:34
2811.47:126:34
2911.47:136:35
3011.47:136:35
3111.47:146:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.85 kWh/m².

For context, solar energy here swings from a low near 4.59 kWh/m² to a high of 6.59 kWh/m² in March across the year — December's 5.85 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in December

Hazard calendar for Kérou

In seasonPeak

None of Kérou's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Kérou's monsoon runs July–September, when most of the year's rain falls.

Kérou sees seasonal dust haze (January–June), heaviest in March.

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

Is December a good time to visit Kérou?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.5
Sightseeing
2nd-best month of the year
8.0
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Kérou for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kérou in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Kérou sees daytime highs around 33°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Kérou in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kérou peaks around September 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highExtremeVery highSep 13UV 12Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar10Very high
Apr12Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec8Very high

Air quality in Kérou in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Kérou is worst in February — around 86 µg/m³ PM2.5 (unhealthy), about 6.4× the cleanest month (August, 14 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 1384 µg/m³Aug 1114 µg/m³
PM2.5 (µg/m³)Level
Jan72Unhealthy
Feb86Unhealthy
Mar62Unhealthy
Apr44Poor
May24Moderate
Jun19Moderate
Jul14Moderate
Aug14Moderate
Sep19Moderate
Oct33Moderate
Nov46Poor
Dec67Unhealthy
Location & terrain

Where is Kérou?

Kérou sits at 10.8°N, 2.1°E, 332 m above sea level, in Benin. The nearest listed city is Sinendé, 61 km away.

SinendéBanikoaraPéhonkoTobréToukountounaBembèrèkèTanguiétaKandi

Topography around Kérou

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

Within 3 km, the terrain around Kérou has only modest variations in elevation — a maximum elevation change of 46 m around an average of 330 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 106 m; within 80 km, significant variations in elevation — a maximum elevation change of 475 m.

The land around Kérou is covered by cropland (49%) and shrubs (23%) within 3 km, cropland (65%) within 16 km, and cropland (41%), shrubs (31%) and grassland (23%) within 80 km.

3 km
46 m
16 km
106 m
80 km
475 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Sinendé 61 km · Banikoara 64 km · Péhonko 67 km · Tobré 70 km · Toukountouna 88 km · Bembèrèkè 90 km · Tanguiéta 94 km · Kandi 97 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 Kérou (10.8258°, 2.1048°, elevation 332 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).