Penja weather in December

In December, Penja sees average daytime highs of 29°C and overnight lows near 21°C, with 73 mm of rain across 17.5 wet days and about 11.7 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 26% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of December to 11 h 42 min by month's end. Set against the rest of the year, December is Penja's 1st-clearest and 5th-windiest month. For the whole year in context, see Penja's year-round climate.

Daytime high
29°
4th warmest
Overnight low
21°
4th coldest
Rainfall
73 mm
17.5 wet days
Daylight
11 h 42 min
6:25 AM – 6:09 PM
Cloud cover
60%
1st clearest
Wind
3 km/h
5th windiest
Solar energy
4.71 kWh/m²
Travel score
4.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Penja reaches about 29°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
202921
213021
223021
233021
243021
253021
263021
273021
283021
293021
303021
313021

How December really feels in Penja

Once humidity and wind are folded in, December averages 16 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
16
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.

Penja weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°5814.211.84.3
Feb31° / 21°9415.411.83.6
Mar30° / 22°25427.9122.8
Apr29° / 22°31229.612.12.8
May28° / 22°29930.412.23.0
Jun27° / 21°33929.812.33.3
Jul26° / 21°40030.212.23.5
Aug26° / 21°43130.512.23.4
Sep27° / 21°39629.8123.3
Oct27° / 21°38730.911.93.2
Nov28° / 21°22428.311.83.2
Dec29° / 21°7317.511.74.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23565
33565
43763
53763
63961
74060
84159
94258
104456
114555
124654
134852
144951
155050
165149
175248
185446
195446
205545
215743
225743
235842
245842
255842
265743
275743
285644
295743
305644
315545

Chance of precipitation in December

Any precipitation

Penja gets around 73 mm of rain over 17.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 57% and peaks near 81% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
181
280
379
477
576
675
774
872
971
1069
1167
1265
1363
1461
1559
1657
1755
1852
1950
2047
2145
2243
2341
2440
2539
2638
2737
2836
2936
3036
3136

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
101486
201585
301684
401783
501783
601882
701981
802080
902179
1002377
1102476
1202575
1302773
1402872
1503070
1603268
1703367
1803565
1903763
2003961
2104159
2204357
2304456
2414653
2514752
2614851
2714950
2824949
2925048
3025147
3135146

Wind in December

Winds average 3 km/h in December.

Across December, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 48 min at the start of December to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:19 AM to 6:32 AM, and sunset from 6:04 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:196:04
211.76:196:04
311.76:196:04
411.76:206:05
511.76:206:05
611.76:216:05
711.76:216:06
811.76:226:06
911.76:226:06
1011.76:236:07
1111.76:236:07
1211.76:246:08
1311.76:246:08
1411.76:256:09
1511.76:256:09
1611.76:256:09
1711.76:266:10
1811.76:266:10
1911.76:276:11
2011.76:276:11
2111.76:286:12
2211.76:286:12
2311.76:296:13
2411.76:296:13
2511.76:306:14
2611.76:306:14
2711.76:316:15
2811.76:316:15
2911.76:326:16
3011.76:326:16
3111.76:326:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.71 kWh/m².

For context, solar energy here swings from a low near 3.29 kWh/m² to a high of 5.21 kWh/m² in February across the year — December's 4.71 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.7Bright
154.7Bright
164.7Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Penja

In seasonPeak

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

Penja sees seasonal dust haze (January–March), heaviest in February.

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

Is December a good time to visit Penja?

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

4.4
Sightseeing
1st-best month of the year
5.8
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Penja for sightseeing.

What to pack for Penja in December

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

In December, Penja sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Penja in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Penja peaks around April 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 9 (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 14Dec 22UV 9
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec9Very high

Air quality in Penja 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 Penja is worst in February — around 112 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (August, 27 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 13108 µg/m³Aug 1627 µg/m³
PM2.5 (µg/m³)Level
Jan85Unhealthy
Feb112Unhealthy
Mar64Unhealthy
Apr50Poor
May37Poor
Jun31Moderate
Jul28Moderate
Aug27Moderate
Sep28Moderate
Oct35Poor
Nov46Poor
Dec74Unhealthy
Location & terrain

Where is Penja?

Penja sits at 4.6°N, 9.7°E, 148 m above sea level, in Cameroon. The nearest listed city is Njombé, 7.0 km away.

Topography around Penja

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

Within 3 km, the terrain around Penja has significant variations in elevation — a maximum elevation change of 274 m around an average of 194 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,240 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,007 m.

The land around Penja is covered by trees (88%) within 3 km, trees (95%) within 16 km, and trees (91%) within 80 km.

3 km
274 m
16 km
1,240 m
80 km
4,007 m
treesshrubsgrasslandartificial surfaceswatermangroves
December weather nearby: Njombé 7.0 km · Loum 11 km · Tombel 12 km · Mbanga 20 km · Kumba 26 km · Manjo 28 km · Nkongsamba 45 km · Souza Gare 46 km

Cameroon 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
$1,972
2025
Happiness
5.1 / 10
World Happiness, 2025
Homicide rate
6.8
per 100k, 2022
Road deaths
30.2
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 445
Religion
Roman Catholic 33%Muslim 31%Protestant 27%animist 1%

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 Penja (4.6391°, 9.6799°, elevation 148 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).