Mossendjo weather in December

In December, Mossendjo sees average daytime highs of 29°C and overnight lows near 21°C, with 304 mm of rain across 29.3 wet days and about 12.2 hours of daylight. It is the 8th-warmest and 2nd-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 0% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of December to 12 h 12 min by month's end. Set against the rest of the year, December is Mossendjo's 11th-clearest and 11th-windiest month. For the whole year in context, see Mossendjo's year-round climate.

Daytime high: 29°; 8th warmest
Overnight low: 21°; 7th coldest
Rainfall: 304 mm; 29.3 wet days
Daylight: 12 h 12 min; 6:00 AM – 6:10 PM
Cloud cover: 86%; 11th clearest
Wind: 4 km/h; 11th windiest
Solar energy: 4.22 kWh/m²
Travel score: 2.9; out of 10

Mossendjo is village in Republic of the Congo.

Density: 3,821/km²; people per km²

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

← November Mossendjo year-round climate January →Best places to visit in December

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

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 Mossendjo reaches about 29°C in the afternoon and slips back to 21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°C)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	22	22	22	22	22	22	22	22	22	22	22	22

	Avg high (°C)	Avg low (°C)
1	29	21
2	29	21
3	29	21
4	29	21
5	29	21
6	29	21
7	29	21
8	29	21
9	29	21
10	29	21
11	29	21
12	29	21
13	29	21
14	29	21
15	29	21
16	29	21
17	29	21
18	29	21
19	29	21
20	29	22
21	29	22
22	29	22
23	29	22
24	29	22
25	29	22
26	29	22
27	29	22
28	29	22
29	29	22
30	29	22
31	29	22

How December really feels in Mossendjo

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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Mossendjo weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 22°	249	27.7	12.2	3.0
Feb	30° / 22°	201	24	12.1	2.9
Mar	30° / 22°	191	26	12	3.0
Apr	30° / 22°	212	25.6	11.9	3.0
May	29° / 22°	137	21.7	11.9	3.7
Jun	27° / 20°	16	3.9	11.8	6.9
Jul	26° / 19°	6	1.5	11.8	7.4
Aug	26° / 19°	11	2.6	11.9	7.1
Sep	28° / 21°	40	10.5	12	5.7
Oct	29° / 21°	210	26.6	12.1	3.2
Nov	29° / 21°	309	28.5	12.1	2.9
Dec	29° / 21°	304	29.3	12.2	2.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 5% of December, with mostly cloudy or overcast conditions the remaining 95%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	6	6	6	7	7
Cloudier (%)	95	95	95	95	95	95	95	95	95	95	96	96	96	96	96	96	96	96	96	96	96	96	96	96	96	96	94	94	94	93	93

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	4	96
12	4	96
13	4	96
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	6	94
28	6	94
29	6	94
30	7	93
31	7	93

Chance of precipitation in December

Any precipitation

Mossendjo gets around 304 mm of rain over 29.3 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 95% and peaks near 97% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	97	97	97	97	97	96	96	96	96	95	95	95	95	95	95	95	95	95	94	94	94	94	94	94	93	93	93	92	92	92	91

	Rain chance (%)
1	97
2	97
3	97
4	97
5	97
6	96
7	96
8	96
9	96
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	94
24	94
25	93
26	93
27	93
28	92
29	92
30	92
31	91

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 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Muggy (%)	8	7	7	7	6	6	6	6	6	6	6	6	6	7	7	7	7	7	7	7	8	8	8	8	8	8	9	9	9	9	9
Oppressive (%)	92	93	93	93	94	94	94	94	94	94	94	94	94	93	93	93	93	93	93	93	92	92	92	92	92	92	91	91	91	91	91

	Muggy (%)	Oppressive (%)
1	8	92
2	7	93
3	7	93
4	7	93
5	6	94
6	6	94
7	6	94
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	7	93
15	7	93
16	7	93
17	7	93
18	7	93
19	7	93
20	7	93
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	9	91
28	9	91
29	9	91
30	9	91
31	9	91

Wind in December

Winds average 4 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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm
31	5	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 12 min at the start of December to 12 h 12 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 5:54 AM to 6:07 AM, and sunset from 6:04 PM to 6:17 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2
Sunrise (AM)	5:54	5:55	5:55	5:55	5:56	5:56	5:56	5:57	5:57	5:58	5:58	5:58	5:59	5:59	6:00	6:00	6:01	6:01	6:02	6:02	6:03	6:03	6:04	6:04	6:04	6:05	6:05	6:06	6:06	6:07	6:07
Sunset (PM)	6:04	6:04	6:05	6:05	6:05	6:06	6:06	6:07	6:07	6:08	6:08	6:09	6:09	6:09	6:10	6:10	6:11	6:11	6:12	6:12	6:13	6:13	6:14	6:14	6:15	6:15	6:16	6:16	6:17	6:17	6:17

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	5:54	6:04
2	12.2	5:55	6:04
3	12.2	5:55	6:05
4	12.2	5:55	6:05
5	12.2	5:56	6:05
6	12.2	5:56	6:06
7	12.2	5:56	6:06
8	12.2	5:57	6:07
9	12.2	5:57	6:07
10	12.2	5:58	6:08
11	12.2	5:58	6:08
12	12.2	5:58	6:09
13	12.2	5:59	6:09
14	12.2	5:59	6:09
15	12.2	6:00	6:10
16	12.2	6:00	6:10
17	12.2	6:01	6:11
18	12.2	6:01	6:11
19	12.2	6:02	6:12
20	12.2	6:02	6:12
21	12.2	6:03	6:13
22	12.2	6:03	6:13
23	12.2	6:04	6:14
24	12.2	6:04	6:14
25	12.2	6:04	6:15
26	12.2	6:05	6:15
27	12.2	6:05	6:16
28	12.2	6:06	6:16
29	12.2	6:06	6:17
30	12.2	6:07	6:17
31	12.2	6:07	6:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.22 kWh/m².

For context, solar energy here swings from a low near 3.4 kWh/m² to a high of 4.96 kWh/m² in March across the year — December's 4.22 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.2	4.3	4.3	4.3	4.3	4.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.2	Bright
2	4.2	Bright
3	4.2	Bright
4	4.2	Bright
5	4.2	Bright
6	4.2	Bright
7	4.2	Bright
8	4.2	Bright
9	4.2	Bright
10	4.2	Bright
11	4.2	Bright
12	4.2	Bright
13	4.2	Bright
14	4.2	Bright
15	4.2	Bright
16	4.2	Bright
17	4.2	Bright
18	4.2	Bright
19	4.2	Bright
20	4.2	Bright
21	4.2	Bright
22	4.2	Bright
23	4.2	Bright
24	4.2	Bright
25	4.2	Bright
26	4.2	Bright
27	4.3	Bright
28	4.3	Bright
29	4.3	Bright
30	4.3	Bright
31	4.3	Bright

Planning a trip in December

Hazard calendar for Mossendjo

In seasonPeak

In December, Mossendjo sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

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

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Mossendjo?

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

2.9

Sightseeing

10th-best month of the year

3.8

Beach & pool

11th-best month of the year

December is a weaker month for outdoor sightseeing in Mossendjo.

What to pack for Mossendjo in December

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

In December, Mossendjo sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Mossendjo in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mossendjo peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 7 (high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	13	15	13	10	7	9	9	12	14	11	10
Level	Extreme	Extreme	Extreme	Extreme	Very high	High	Very high	Very high	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	13	Extreme
Mar	15	Extreme
Apr	13	Extreme
May	10	Very high
Jun	7	High
Jul	9	Very high
Aug	9	Very high
Sep	12	Extreme
Oct	14	Extreme
Nov	11	Extreme
Dec	10	Extreme

Air quality in Mossendjo 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 Mossendjo is worst in July — around 28 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 10 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	16	19	14	12	19	28	28	25	18	11	10	14
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Moderate

	PM2.5 (µg/m³)	Level
Jan	16	Moderate
Feb	19	Moderate
Mar	14	Moderate
Apr	12	Moderate
May	19	Moderate
Jun	28	Moderate
Jul	28	Moderate
Aug	25	Moderate
Sep	18	Moderate
Oct	11	Good
Nov	10	Good
Dec	14	Moderate

Location & terrain

Where is Mossendjo?

Mossendjo sits at 2.9°S, 12.7°E, 448 m above sea level, in Republic of the Congo. The nearest listed city is Sibiti, 108 km away.

Topography around Mossendjo

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

Within 3 km, the terrain around Mossendjo has only modest variations in elevation — a maximum elevation change of 133 m around an average of 448 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 338 m; within 80 km, large variations in elevation — a maximum elevation change of 751 m.

The land around Mossendjo is covered by trees (65%) and grassland (29%) within 3 km, trees (93%) within 16 km, and trees (88%) within 80 km.

3 km

133 m

trees 65%

16 km

338 m

trees 93%

80 km

751 m

trees 88%

treesgrasslandartificial surfaces

← November Mossendjo year-round climate January →Best places to visit in December

December weather nearby: Sibiti 108 km · Loudima 136 km · Dolisie 139 km · Nkayi 152 km · Kayes 154 km · Moanda 163 km · Franceville 176 km · Mouyondzi 179 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

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 Mossendjo (-2.9497°, 12.7042°, elevation 448 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).

	Avg high (°C)	Avg low (°C)
1	29	21
2	29	21
3	29	21
4	29	21
5	29	21
6	29	21
7	29	21
8	29	21
9	29	21
10	29	21
11	29	21
12	29	21
13	29	21
14	29	21
15	29	21
16	29	21
17	29	21
18	29	21
19	29	21
20	29	22
21	29	22
22	29	22
23	29	22
24	29	22
25	29	22
26	29	22
27	29	22
28	29	22
29	29	22
30	29	22
31	29	22

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	4	96
12	4	96
13	4	96
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	6	94
28	6	94
29	6	94
30	7	93
31	7	93

	Rain chance (%)
1	97
2	97
3	97
4	97
5	97
6	96
7	96
8	96
9	96
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	94
24	94
25	93
26	93
27	93
28	92
29	92
30	92
31	91

	Muggy (%)	Oppressive (%)
1	8	92
2	7	93
3	7	93
4	7	93
5	6	94
6	6	94
7	6	94
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	7	93
15	7	93
16	7	93
17	7	93
18	7	93
19	7	93
20	7	93
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	9	91
28	9	91
29	9	91
30	9	91
31	9	91

	Avg high (°C)	Avg low (°C)
1	29	21
2	29	21
3	29	21
4	29	21
5	29	21
6	29	21
7	29	21
8	29	21
9	29	21
10	29	21
11	29	21
12	29	21
13	29	21
14	29	21
15	29	21
16	29	21
17	29	21
18	29	21
19	29	21
20	29	22
21	29	22
22	29	22
23	29	22
24	29	22
25	29	22
26	29	22
27	29	22
28	29	22
29	29	22
30	29	22
31	29	22

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	4	96
12	4	96
13	4	96
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	6	94
28	6	94
29	6	94
30	7	93
31	7	93

	Rain chance (%)
1	97
2	97
3	97
4	97
5	97
6	96
7	96
8	96
9	96
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	94
24	94
25	93
26	93
27	93
28	92
29	92
30	92
31	91

	Muggy (%)	Oppressive (%)
1	8	92
2	7	93
3	7	93
4	7	93
5	6	94
6	6	94
7	6	94
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	7	93
15	7	93
16	7	93
17	7	93
18	7	93
19	7	93
20	7	93
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	9	91
28	9	91
29	9	91
30	9	91
31	9	91

	Avg high (°C)	Avg low (°C)
1	29	21
2	29	21
3	29	21
4	29	21
5	29	21
6	29	21
7	29	21
8	29	21
9	29	21
10	29	21
11	29	21
12	29	21
13	29	21
14	29	21
15	29	21
16	29	21
17	29	21
18	29	21
19	29	21
20	29	22
21	29	22
22	29	22
23	29	22
24	29	22
25	29	22
26	29	22
27	29	22
28	29	22
29	29	22
30	29	22
31	29	22

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	5	95
6	5	95
7	5	95
8	5	95
9	5	95
10	5	95
11	4	96
12	4	96
13	4	96
14	4	96
15	4	96
16	4	96
17	4	96
18	4	96
19	4	96
20	4	96
21	4	96
22	4	96
23	4	96
24	4	96
25	4	96
26	4	96
27	6	94
28	6	94
29	6	94
30	7	93
31	7	93

	Rain chance (%)
1	97
2	97
3	97
4	97
5	97
6	96
7	96
8	96
9	96
10	95
11	95
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	94
24	94
25	93
26	93
27	93
28	92
29	92
30	92
31	91

	Muggy (%)	Oppressive (%)
1	8	92
2	7	93
3	7	93
4	7	93
5	6	94
6	6	94
7	6	94
8	6	94
9	6	94
10	6	94
11	6	94
12	6	94
13	6	94
14	7	93
15	7	93
16	7	93
17	7	93
18	7	93
19	7	93
20	7	93
21	8	92
22	8	92
23	8	92
24	8	92
25	8	92
26	8	92
27	9	91
28	9	91
29	9	91
30	9	91
31	9	91