Somaroboro weather in December

In December, Somaroboro sees average daytime highs of 29°C and overnight lows near 19°C, with 91 mm of rain across 13.9 wet days and about 13.5 hours of daylight. It is the 3rd-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 34% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 13 h 30 min at the start of December to 13 h 36 min by month's end. Set against the rest of the year, December is Somaroboro's 12th-clearest and 5th-windiest month. For the whole year in context, see Somaroboro's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
91 mm
13.9 wet days
Daylight
13 h 36 min
5:14 AM – 6:48 PM
Cloud cover
56%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
6.7 kWh/m²
Travel score
4.9
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 Somaroboro reaches about 29°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12918
22918
32918
42918
52918
62918
72918
82918
92918
102918
112918
122918
132919
142919
152919
163019
173019
183019
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019
313019

Somaroboro weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°9413.613.44.8
Feb30° / 19°789.812.95.2
Mar28° / 18°68912.26.3
Apr26° / 15°304.811.47.8
May24° / 10°132.110.89.0
Jun22° / 50.910.58.9
Jul22° / 30.410.69.0
Aug25° / 10°41.111.19.2
Sep28° / 14°14211.87.7
Oct29° / 16°497.512.66.0
Nov29° / 17°7811.113.25.3
Dec29° / 19°9113.913.54.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35248
45347
55347
65347
75446
85545
95545
105644
115644
125644
135743
145743
155743
165743
175743
185743
195743
205842
215743
225743
235842
245842
255842
265842
275941
285941
295941
306139
316139

Chance of precipitation in December

Any precipitation

Somaroboro gets around 91 mm of rain over 13.9 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 44% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
140
241
342
442
543
644
744
845
945
1045
1145
1245
1345
1445
1545
1644
1744
1844
1943
2043
2143
2244
2344
2444
2545
2645
2745
2844
2944
3044
3144

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the comfortable band about 41% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12843281
22743291
32644301
42544301
52444311
62344321
72244331
82044341
91944361
101844372
111744372
121644382
131544392
141444402
151344402
161344413
171243413
181143424
191143434
201042434
211041445
221041455
23940456
24939466
25938477
26937477
27936487
28935497
29934497
301033498
311033498

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 30 min at the start of December to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:10 AM to 5:21 AM, and sunset from 6:38 PM to 6:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:106:38
213.55:116:39
313.55:116:40
413.55:116:40
513.55:116:41
613.55:116:42
713.55:116:42
813.55:116:43
913.55:126:44
1013.55:126:44
1113.55:126:45
1213.65:126:46
1313.65:136:46
1413.65:136:47
1513.65:136:47
1613.65:146:48
1713.65:146:48
1813.65:146:49
1913.65:156:50
2013.65:156:50
2113.65:166:51
2213.65:166:51
2313.65:176:52
2413.65:176:52
2513.65:186:52
2613.65:186:53
2713.65:196:53
2813.65:196:54
2913.65:206:54
3013.65:206:54
3113.65:216:55

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.7 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.96 kWh/m² to a high of 6.7 kWh/m² in December across the year — December's 6.7 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in December

Hazard calendar for Somaroboro

In seasonPeak

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

Somaroboro's rainy season runs October–March, 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 Somaroboro?

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

4.9
Sightseeing
11th-best month of the year
6.5
Beach & pool
10th-best month of the year

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

What to pack for Somaroboro in December

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

In December, Somaroboro sees daytime highs around 29°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 14 days see rain.

light clothessun protectionrain gear

UV index in Somaroboro in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Somaroboro peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 13UV 14Jun 17UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5Moderate
Jul6High
Aug7Very high
Sep9Very high
Oct10Extreme
Nov11Extreme
Dec14Extreme

Air quality in Somaroboro 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 Somaroboro is worst in July — around 188 µg/m³ PM2.5 (very unhealthy), about 6.6× the cleanest month (January, 29 µg/m³).

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

0306090120150180210JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyVery unhealthyUnhealthyPoorJul 10187 µg/m³Jan 1229 µg/m³
PM2.5 (µg/m³)Level
Jan29Moderate
Feb43Poor
Mar67Unhealthy
Apr114Unhealthy
May169Very unhealthy
Jun185Very unhealthy
Jul188Very unhealthy
Aug142Unhealthy
Sep108Unhealthy
Oct62Unhealthy
Nov43Poor
Dec32Moderate
Location & terrain

Where is Somaroboro?

Somaroboro sits at 25.3°S, 28.8°E, 1,368 m above sea level, in South Africa. The nearest listed city is Kwaggafontein, 11 km away.

Topography around Somaroboro

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

Within 3 km, the terrain around Somaroboro has only modest variations in elevation — a maximum elevation change of 177 m around an average of 1,375 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 488 m; within 80 km, large variations in elevation — a maximum elevation change of 859 m.

The land around Somaroboro is covered by grassland (58%) and artificial surfaces (22%) within 3 km, grassland (60%) within 16 km, and grassland (44%) and shrubs (27%) within 80 km.

3 km
177 m
16 km
488 m
80 km
859 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Kwaggafontein 11 km · Vaalbank 22 km · Moloto South 23 km · Verena 25 km · Siyabuswa 33 km · Ekangala 37 km · Cullinan 48 km · Bronkhorstspruit 52 km

South Africa travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / M / N
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
5.0 / 10
World Happiness, 2025
Safe drinking water
68%
of population, 2024
Homicide rate
43.7
per 100k, 2022
Road deaths
22.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very high
EF EPI 602
Religion
Christian 86%or other traditional African religions 5%nothing in particular 5%Muslim 2%

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 Somaroboro (-25.346°, 28.8343°, elevation 1,368 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).