Rustenburg weather in December

In December, Rustenburg sees average daytime highs of 29°C and overnight lows near 18°C, with 111 mm of rain across 14.7 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 1st-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 35% 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 Rustenburg's 12th-clearest and 5th-windiest month. For the whole year in context, see Rustenburg's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
18°
10th coldest
Rainfall
111 mm
14.7 wet days
Daylight
13 h 36 min
5:19 AM – 6:55 PM
Cloud cover
55%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
6.8 kWh/m²
Travel score
5.2
out of 10

Rustenburg is South African city, town and mine.

Density
1,323/km²
people per km²
Founded
1851

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 29°C through the month.

A typical December day in Rustenburg reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12817
22817
32817
42817
52817
62817
72817
82817
92817
102818
112818
122818
132918
142918
152918
162918
172918
182918
192918
202918
212918
222918
232918
242918
252918
262918
272918
282918
292918
302918
312918

Rustenburg weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°9414.113.45.2
Feb29° / 18°8911.812.95.4
Mar27° / 17°7010.412.26.6
Apr25° / 13°335.811.47.9
May23° / 172.310.88.8
Jun20° / 71.310.48.5
Jul20° / 30.610.68.6
Aug23° / 71.211.19.1
Sep27° / 13°141.811.88.4
Oct28° / 15°497.512.66.6
Nov29° / 17°7411.313.35.6
Dec29° / 18°11114.713.65.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 25% of December, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35743
45743
55743
65842
75842
85941
95941
106040
116040
126040
136040
146139
156139
166139
176139
186139
196139
206139
216040
226040
236040
245941
255941
265941
275941
285941
295941
306040
316040

Chance of precipitation in December

Any precipitation

Rustenburg gets around 111 mm of rain over 14.7 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
246
346
447
547
648
748
848
948
1048
1147
1247
1347
1447
1546
1646
1746
1846
1946
2046
2146
2246
2346
2446
2546
2646
2746
2846
2945
3045
3145

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 39% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14037230
23838230
33739240
43639240
53440251
63341261
73241261
83142271
92942281
102843281
112743291
122644291
132544301
142444311
152344311
162344321
172244331
182143342
192142352
202041372
212040382
221939392
231938413
241837423
251836433
261835443
271834454
281833454
291833454
301832454
311832455

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 5:16 AM to 5:27 AM, and sunset from 6:45 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:166:45
213.55:166:46
313.55:166:47
413.55:166:47
513.55:176:48
613.55:176:49
713.55:176:49
813.65:176:50
913.65:176:51
1013.65:186:51
1113.65:186:52
1213.65:186:53
1313.65:186:53
1413.65:196:54
1513.65:196:54
1613.65:196:55
1713.65:206:56
1813.65:206:56
1913.65:216:57
2013.65:216:57
2113.65:216:58
2213.65:226:58
2313.65:226:59
2413.65:236:59
2513.65:236:59
2613.65:247:00
2713.65:247:00
2813.65:257:01
2913.65:267:01
3013.65:267:01
3113.65:277:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.8 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 6.8 kWh/m² in December across the year — December's 6.8 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.9Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
316.9Intense
Planning a trip in December

Hazard calendar for Rustenburg

In seasonPeak

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

Rustenburg's rainy season runs November–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 Rustenburg?

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

5.2
Sightseeing
11th-best month of the year
6.4
Beach & pool
10th-best month of the year

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

What to pack for Rustenburg in December

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

In December, Rustenburg sees daytime highs around 29°C and nights near 18°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Rustenburg 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 Rustenburg peaks around January 11 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 11UV 14Jun 17UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5Moderate
Jul6High
Aug7Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Rustenburg 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 Rustenburg is worst in June — around 69 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (December, 14 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJun 1869 µg/m³Dec 2114 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb22Moderate
Mar31Moderate
Apr46Poor
May62Unhealthy
Jun69Unhealthy
Jul66Unhealthy
Aug53Poor
Sep47Poor
Oct28Moderate
Nov17Moderate
Dec14Moderate
Location & terrain

Where is Rustenburg?

Rustenburg sits at 25.7°S, 27.2°E, 1,171 m above sea level, in South Africa. The nearest listed city is Marikana, 24 km away.

Topography around Rustenburg

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

Within 3 km, the terrain around Rustenburg has only modest variations in elevation — a maximum elevation change of 201 m around an average of 1,167 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 650 m; within 80 km, large variations in elevation — a maximum elevation change of 915 m.

The land around Rustenburg is covered by artificial surfaces (56%) and trees (21%) within 3 km, grassland (45%) within 16 km, and grassland (51%) and shrubs (22%) within 80 km.

3 km
201 m
16 km
650 m
80 km
915 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Marikana 24 km · Hartbeestfontein-A 37 km · Koster 41 km · Brits 54 km · Bagale 60 km · Hartbeespoort 63 km · Letlhabile 63 km · Krugersdorp 71 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 Rustenburg (-25.6676°, 27.2421°, elevation 1,171 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).