Yambio weather in December

In December, Yambio sees average daytime highs of 32°C and overnight lows near 21°C, with 21 mm of rain across 3.8 wet days and about 11.7 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 31°C in the first days to 33°C by the end. The sky is clear or mostly clear about 34% of the time in December, and the air most often feels humid.

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 Yambio's 1st-clearest and 4th-windiest month. For the whole year in context, see Yambio's year-round climate.

Daytime high
32°
4th warmest
Overnight low
21°
7th coldest
Rainfall
21 mm
3.8 wet days
Daylight
11 h 42 min
7:10 AM – 6:55 PM
Cloud cover
54%
1st clearest
Wind
8 km/h
4th windiest
Solar energy
5.62 kWh/m²
Travel score
4.6
out of 10

Yambio is human settlement in South Sudan.

Founded
1800

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 31°C in the first days to 33°C by the end.

A typical December day in Yambio reaches about 32°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, December runs about 2°C warmer than November and about 2°C cooler than January.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113221
123221
133221
143221
153221
163221
173221
183221
193221
203221
213221
223321
233321
243321
253321
263321
273321
283321
293322
303322
313322

How December really feels in Yambio

Once humidity and wind are folded in, December averages 15 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
15
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.

Yambio 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
Jan34° / 22°132.411.83.6
Feb34° / 23°244.811.93.0
Mar33° / 23°10015123.0
Apr30° / 22°18822.512.13.2
May29° / 22°18324.712.23.5
Jun28° / 21°15124.212.33.9
Jul28° / 20°16325.312.24.1
Aug28° / 20°1892612.13.8
Sep29° / 21°19026.1123.5
Oct29° / 21°23627.911.93.3
Nov30° / 21°11917.111.84.1
Dec32° / 21°213.811.74.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of December, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35446
45446
55446
65545
75545
85545
95545
105644
115644
125743
135743
145842
155842
165941
176040
186139
196139
206139
216139
226139
236139
246139
256040
266040
276040
285941
295941
305842
315842

Chance of precipitation in December

Any precipitation

Yambio gets around 21 mm of rain over 3.8 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 12% and peaks near 26% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
126
225
324
423
522
621
720
819
918
1017
1116
1214
1313
1412
1511
1610
179
188
198
207
216
226
236
245
255
265
275
285
295
305
314

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 26% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
151131512
251232501
361332481
461433461
571533441
671633431
781733411
891833391
9101932381
10122032361
11132131340
12152231310
13172430290
14192529270
15212529250
16232628230
17252727210
18272726200
19292825180
20312824170
21332823150
22352823140
23372822130
24392722120
25402721120
26422621110
27432521110
28442520100
29462420100
30482320100
3149221990

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 7:04 AM to 7:17 AM, and sunset from 6:49 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:046:49
211.87:046:49
311.87:046:49
411.77:056:50
511.77:056:50
611.77:066:51
711.77:066:51
811.77:076:51
911.77:076:52
1011.77:086:52
1111.77:086:53
1211.77:096:53
1311.77:096:53
1411.77:106:54
1511.77:106:54
1611.77:106:55
1711.77:116:55
1811.77:116:56
1911.77:126:56
2011.77:126:57
2111.77:136:57
2211.77:136:57
2311.77:146:58
2411.77:146:58
2511.77:156:59
2611.77:156:59
2711.77:167:00
2811.77:167:00
2911.77:177:01
3011.77:177:01
3111.77:177:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.62 kWh/m².

For context, solar energy here swings from a low near 5 kWh/m² to a high of 6.1 kWh/m² in February across the year — December's 5.62 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Is December a good time to visit Yambio?

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
7.3
Beach & pool
1st-best month of the year

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

What to pack for Yambio in December

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

In December, Yambio sees daytime highs around 32°C and nights near 21°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Yambio 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 Yambio peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 22UV 13Dec 16UV 10
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov10Extreme
Dec10Very high

Air quality in Yambio 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 Yambio is worst in January — around 88 µg/m³ PM2.5 (unhealthy), about 11.5× the cleanest month (October, 8 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyModerateGoodModerateGoodModerateJan 1787 µg/m³Oct 108 µg/m³
PM2.5 (µg/m³)Level
Jan88Unhealthy
Feb75Unhealthy
Mar37Poor
Apr14Moderate
May10Good
Jun15Moderate
Jul16Moderate
Aug11Good
Sep9Good
Oct8Good
Nov17Moderate
Dec71Unhealthy
Location & terrain

Where is Yambio?

Yambio sits at 4.6°N, 28.4°E, 655 m above sea level, in South Sudan. The nearest listed city is Bakwa, 121 km away.

BakwaWatsaYeiRumbekTonjKoboko

Topography around Yambio

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

Within 3 km, the terrain around Yambio has only modest variations in elevation — a maximum elevation change of 51 m around an average of 652 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 131 m; within 80 km, significant variations in elevation — a maximum elevation change of 361 m.

The land around Yambio is covered by trees (36%), shrubs (24%) and grassland (21%) within 3 km, trees (45%) and shrubs (44%) within 16 km, and trees (73%) and shrubs (22%) within 80 km.

3 km
51 m
16 km
131 m
80 km
361 m
treesshrubsgrasslandartificial surfaces
December weather nearby: Bakwa 121 km · Watsa 212 km · Isiro 218 km · Yei 259 km · Wamba 273 km · Rumbek 286 km · Tonj 302 km · Koboko 312 km

South Sudan travel facts

Travel advisory
Level 4
Do Not Travel
Prices
≈ 6% of US
price level, 2021
GDP per capita
$1,080
2015
Happiness
2.8 / 10
World Happiness, 2019
Homicide rate
14
per 100k, 2012
Road deaths
36.7
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Christian 61%folk religion 33%Muslim 6%

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 Yambio (4.5708°, 28.3942°, elevation 655 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).