Gamboma weather in December

In December, Gamboma sees average daytime highs of 30°C and overnight lows near 21°C, with 144 mm of rain across 23.7 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 5% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Gamboma's 9th-clearest and 10th-windiest month. For the whole year in context, see Gamboma's year-round climate.

Daytime high
30°
6th warmest
Overnight low
21°
7th coldest
Rainfall
144 mm
23.7 wet days
Daylight
12 h 06 min
5:49 AM – 5:56 PM
Cloud cover
78%
9th clearest
Wind
5 km/h
10th windiest
Solar energy
5.06 kWh/m²
Travel score
3.4
out of 10

Gamboma is city in Nkéni-Alima, Republic of the Congo.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Gamboma reaches about 30°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 32°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13021
23021
33021
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303021
313021

How December really feels in Gamboma

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.

Gamboma weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°11920.212.13.4
Feb31° / 22°13119.312.13.1
Mar32° / 22°12921.5123.0
Apr31° / 22°14923.1122.9
May31° / 22°10219.511.93.5
Jun30° / 21°399.711.95.0
Jul30° / 21°29711.95.5
Aug30° / 21°641511.94.5
Sep30° / 21°11322.3123.5
Oct30° / 21°19527.2123.1
Nov30° / 21°17224.612.13.2
Dec30° / 21°14423.712.13.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52278
62278
72278
82278
92179
102278
112278
122377
132179
142179
152179
162080
172080
182080
192080
202080
211981
221981
232080
242080
252179
262179
272179
282179
292179
302179
312179

Chance of precipitation in December

Any precipitation

Gamboma gets around 144 mm of rain over 23.7 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 76% and peaks near 82% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
182
282
382
482
582
682
782
881
981
1080
1180
1279
1378
1477
1577
1676
1775
1874
1974
2073
2172
2272
2371
2471
2570
2670
2770
2869
2969
3069
3168

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 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
10793
20793
30793
40793
50793
60793
70793
80793
90793
100892
110892
120892
130793
140793
150793
160793
170793
180892
190892
200892
210892
220892
230991
240991
250991
2601090
2701090
2801090
2901189
3011188
3111287

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 06 min at the start of December to 12 h 06 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 5:43 AM to 5:56 AM, and sunset from 5:49 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:435:49
212.15:445:50
312.15:445:50
412.15:445:51
512.15:455:51
612.15:455:51
712.15:465:52
812.15:465:52
912.15:465:53
1012.15:475:53
1112.15:475:54
1212.15:485:54
1312.15:485:55
1412.15:495:55
1512.15:495:55
1612.15:495:56
1712.15:505:56
1812.15:505:57
1912.15:515:57
2012.15:515:58
2112.15:525:58
2212.15:525:59
2312.15:535:59
2412.15:536:00
2512.15:546:00
2612.15:546:01
2712.15:556:01
2812.15:556:02
2912.15:566:02
3012.15:566:02
3112.15:566:03

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.06 kWh/m².

For context, solar energy here swings from a low near 5.03 kWh/m² to a high of 5.62 kWh/m² in February across the year — December's 5.06 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in December

Is December a good time to visit Gamboma?

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

3.4
Sightseeing
6th-best month of the year
4.6
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Gamboma.

What to pack for Gamboma in December

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

In December, Gamboma sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Gamboma 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 Gamboma peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 17UV 13Jun 22UV 7
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun7Very high
Jul8Very high
Aug8Very high
Sep11Extreme
Oct13Extreme
Nov11Extreme
Dec9Very high

Air quality in Gamboma 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 Gamboma is worst in July — around 57 µg/m³ PM2.5 (unhealthy), about 4.9× the cleanest month (October, 12 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateModerateJul 1956 µg/m³Oct 2312 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb29Moderate
Mar27Moderate
Apr22Moderate
May30Moderate
Jun48Poor
Jul57Unhealthy
Aug52Poor
Sep23Moderate
Oct12Good
Nov13Moderate
Dec19Moderate
Location & terrain

Where is Gamboma?

Gamboma sits at 1.9°S, 15.9°E, 356 m above sea level, in Republic of the Congo. The nearest listed city is Bolobo, 52 km away.

OyoMossakaDjambalaOwandoMushieMakouaNioki

Topography around Gamboma

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

Within 3 km, the terrain around Gamboma has only modest variations in elevation — a maximum elevation change of 144 m around an average of 349 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 199 m; within 80 km, significant variations in elevation — a maximum elevation change of 422 m.

The land around Gamboma is covered by trees (46%) and grassland (45%) within 3 km, grassland (67%) and trees (31%) within 16 km, and grassland (58%) and trees (36%) within 80 km.

3 km
144 m
16 km
199 m
80 km
422 m
treesshrubsgrasslandartificial surfaceswaterwetland
December weather nearby: Bolobo 52 km · Oyo 80 km · Mossaka 127 km · Djambala 144 km · Owando 155 km · Mushie 173 km · Makoua 211 km · Nioki 223 km

Republic of the Congo travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$2,515
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
46%
of population, 2021
Road deaths
29.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Roman Catholic 33%Awakening Churches/Christian Revival 22%Protestant 20%none 11%

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 Gamboma (-1.8764°, 15.8644°, elevation 356 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).