Kétou weather in December

In December, Kétou sees average daytime highs of 34°C and overnight lows near 24°C, with 9 mm of rain across 2.5 wet days and about 11.6 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 59% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of December to 11 h 36 min by month's end. Set against the rest of the year, December is Kétou's 1st-clearest and 10th-windiest month. For the whole year in context, see Kétou's year-round climate.

Daytime high
34°
4th warmest
Overnight low
24°
8th coldest
Rainfall
9 mm
2.5 wet days
Daylight
11 h 36 min
6:59 AM – 6:33 PM
Cloud cover
39%
1st clearest
Wind
6 km/h
10th windiest
Solar energy
5.21 kWh/m²
Travel score
3.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical December day in Kétou reaches about 34°C in the afternoon and slips back to 24°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 35°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83324
93424
103424
113424
123424
133424
143424
153424
163424
173424
183424
193424
203424
213424
223424
233424
243424
253424
263424
273424
283424
293424
303424
313424

How December really feels in Kétou

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.

Kétou weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 24°102.411.63.5
Feb35° / 25°225.311.82.7
Mar35° / 26°5111.7122.5
Apr33° / 25°7815.412.22.7
May32° / 25°12422.412.32.7
Jun30° / 24°14524.112.43.1
Jul29° / 23°13521.912.43.7
Aug29° / 23°13320.412.24.0
Sep30° / 23°13622.7123.4
Oct31° / 23°10319.811.83.4
Nov33° / 24°246.711.73.9
Dec34° / 24°92.511.63.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 23%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36832
46931
56931
67030
77129
87228
97327
107426
117624
127723
137822
147822
158020
168119
178119
188317
198317
208317
218317
228317
238317
248317
258317
268317
278119
288119
298020
308020
317822

Chance of precipitation in December

Any precipitation

Kétou gets around 9 mm of rain over 2.5 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 8% and peaks near 14% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
114
213
313
413
513
612
712
811
911
1010
119
129
138
147
157
166
176
185
195
205
214
224
234
244
254
265
275
285
295
305
316

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 87% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101267021
201277020
311376919
412386818
512386917
612396817
712496816
8134106715
9234106714
10234106813
11235106713
12335116612
13335116711
14335116710
15445126510
1644612659
1744613658
1844613667
1944714647
2054714646
2154715645
2254816625
2354817624
2465818603
2565819593
2675919582
2775920572
2885920562
2996921532
30106921531
31116921521

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 36 min at the start of December to 11 h 36 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 6:51 AM to 7:05 AM, and sunset from 6:27 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:516:27
211.66:526:28
311.66:526:28
411.66:536:28
511.66:536:29
611.66:546:29
711.66:546:29
811.66:556:30
911.66:556:30
1011.66:566:31
1111.66:566:31
1211.66:576:31
1311.66:576:32
1411.66:586:32
1511.66:586:33
1611.66:596:33
1711.66:596:33
1811.67:006:34
1911.67:006:34
2011.67:006:35
2111.67:016:35
2211.67:016:36
2311.67:026:36
2411.67:026:37
2511.67:036:37
2611.67:036:38
2711.67:046:38
2811.67:046:39
2911.67:056:39
3011.67:056:40
3111.67:056:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.21 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 5.61 kWh/m² in February across the year — December's 5.21 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in December

Hazard calendar for Kétou

In seasonPeak

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

Kétou's rainy season runs April–October, when most of the year's rain falls.

Kétou sees seasonal dust haze (January–April), heaviest in February.

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

Is December a good time to visit Kétou?

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

3.9
Sightseeing
2nd-best month of the year
7.4
Beach & pool
1st-best month of the year

December is a weaker month for outdoor sightseeing in Kétou. The water and warmth also suit a beach or pool day.

What to pack for Kétou in December

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

In December, Kétou sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Kétou in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kétou peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 highApr 11UV 13Dec 18UV 8
UV index (midday)Level
Jan8Very high
Feb8Very high
Mar12Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec7Very high

Air quality in Kétou 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 Kétou 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
Location & terrain

Where is Kétou?

Kétou sits at 7.4°N, 2.6°E, 103 m above sea level, in Benin. The nearest listed city is Cové, 33 km away.

AdjaouèrèPobéKpozounBohiconDassa-ZoumèIlaro

Topography around Kétou

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

Within 3 km, the terrain around Kétou has only modest variations in elevation — a maximum elevation change of 87 m around an average of 109 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 254 m; within 80 km, significant variations in elevation — a maximum elevation change of 496 m.

The land around Kétou is covered by artificial surfaces (29%), shrubs (26%) and cropland (26%) within 3 km, shrubs (28%), cropland (26%) and grassland (25%) within 16 km, and trees (41%) and shrubs (30%) within 80 km.

3 km
87 m
16 km
254 m
80 km
496 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Cové 33 km · Ouinhi 34 km · Adjaouèrè 40 km · Pobé 43 km · Kpozoun 45 km · Bohicon 62 km · Dassa-Zoumè 63 km · Ilaro 70 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 Kétou (7.3633°, 2.5998°, elevation 103 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).