Ouesso weather in December

In December, Ouesso sees average daytime highs of 30°C and overnight lows near 22°C, with 72 mm of rain across 12.3 wet days and about 11.9 hours of daylight. It is the 6th-warmest and 11th-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 13% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of December to 11 h 54 min by month's end. Set against the rest of the year, December is Ouesso's 4th-clearest and 6th-windiest month. For the whole year in context, see Ouesso's year-round climate.

Daytime high
30°
6th warmest
Overnight low
22°
6th coldest
Rainfall
72 mm
12.3 wet days
Daylight
11 h 54 min
5:55 AM – 5:49 PM
Cloud cover
70%
4th clearest
Wind
5 km/h
6th windiest
Solar energy
5.05 kWh/m²
Travel score
4.6
out of 10

Ouesso is city.

Density
8,133/km²
people per km²

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 Ouesso reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°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 about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273021
283021
293021
303021
313021

How December really feels in Ouesso

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.

Ouesso weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°539.211.94.6
Feb31° / 22°7511.711.93.9
Mar31° / 22°13919.8123.3
Apr31° / 23°14719.9123.4
May30° / 22°11520.212.13.7
Jun29° / 22°9518.212.14.3
Jul29° / 22°9117.812.14.5
Aug29° / 22°12422.312.13.9
Sep29° / 22°16925.1123.4
Oct29° / 22°18926.3123.3
Nov29° / 22°1592211.93.6
Dec30° / 22°7212.311.94.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33169
43169
53169
63268
73367
83367
93367
103466
113466
123466
133466
143466
153466
163466
173466
183565
193565
203565
213565
223565
233565
243565
253664
263763
273862
283862
293862
303961
313862

Chance of precipitation in December

Any precipitation

Ouesso gets around 72 mm of rain over 12.3 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 40% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
257
356
455
554
653
752
851
949
1048
1146
1244
1343
1441
1539
1638
1736
1835
1934
2032
2131
2230
2329
2428
2528
2627
2727
2827
2927
3026
3126

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1003970
2003970
3004960
4004960
5005950
6005950
7016930
8017920
9017920
10018910
11028891
12029881
130210871
140310861
150311851
160312841
170312841
180313831
190414811
200415801
210415801
220416791
230416791
240417781
250417790
261418770
271418770
281518760
291519750
302519740
312519740

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
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
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 11 h 54 min at the start of December to 11 h 54 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 5:48 AM to 6:02 AM, and sunset from 5:43 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:485:43
211.95:495:43
311.95:495:44
411.95:495:44
511.95:505:44
611.95:505:45
711.95:515:45
811.95:515:46
911.95:525:46
1011.95:525:47
1111.95:525:47
1211.95:535:47
1311.95:535:48
1411.95:545:48
1511.95:545:49
1611.95:555:49
1711.95:555:50
1811.95:565:50
1911.95:565:51
2011.95:575:51
2111.95:575:51
2211.95:585:52
2311.95:585:52
2411.95:595:53
2511.95:595:53
2611.95:595:54
2711.96:005:54
2811.96:005:55
2911.96:015:55
3011.96:015:56
3111.96:025:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.05 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 5.47 kWh/m² in February across the year — December's 5.05 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
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
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Is December a good time to visit Ouesso?

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

4.6
Sightseeing
1st-best month of the year
6.3
Beach & pool
2nd-best month of the year

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

What to pack for Ouesso in December

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

In December, Ouesso sees daytime highs around 30°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Ouesso 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 Ouesso peaks around March 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 18UV 14Jul 10UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar14Extreme
Apr12Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct13Extreme
Nov10Very high
Dec9Very high

Air quality in Ouesso 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 Ouesso is worst in February — around 43 µg/m³ PM2.5 (poor), about 4.8× the cleanest month (September, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateFeb 1342 µg/m³Sep 239 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb43Poor
Mar26Moderate
Apr17Moderate
May14Moderate
Jun20Moderate
Jul23Moderate
Aug18Moderate
Sep9Good
Oct9Good
Nov16Moderate
Dec26Moderate
Location & terrain

Where is Ouesso?

Ouesso sits at 1.6°N, 16.1°E, 348 m above sea level, in Republic of the Congo. The nearest listed city is Pokola, 38 km away.

MakouaNolaImpfondoOwandoYokadoumaBolenge

Topography around Ouesso

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

Within 3 km, the terrain around Ouesso has only modest variations in elevation — a maximum elevation change of 47 m around an average of 346 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 215 m; within 80 km, significant variations in elevation — a maximum elevation change of 366 m.

The land around Ouesso is covered by trees (53%) and artificial surfaces (23%) within 3 km, trees (95%) within 16 km, and trees (99%) within 80 km.

3 km
47 m
16 km
215 m
80 km
366 m
treesgrasslandartificial surfaceswater
December weather nearby: Pokola 38 km · Makoua 185 km · Nola 213 km · Impfondo 223 km · Owando 234 km · Yokadouma 239 km · Berbérati 296 km · Bolenge 300 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 Ouesso (1.6136°, 16.0517°, elevation 348 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).