Bultfontein weather in December

In December, Bultfontein sees average daytime highs of 30°C and overnight lows near 16°C, with 78 mm of rain across 11.5 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 2nd-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 50% of the time in December, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is Bultfontein's 12th-clearest and 3rd-windiest month. For the whole year in context, see Bultfontein's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
16°
10th coldest
Rainfall
78 mm
11.5 wet days
Daylight
13 h 48 min
5:18 AM – 7:05 PM
Cloud cover
43%
12th clearest
Wind
12 km/h
3rd windiest
Solar energy
7.67 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 30°C through the month.

A typical December day in Bultfontein reaches about 30°C in the afternoon and slips back to 16°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 35°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13015
23015
33016
43016
53016
63016
73016
83016
93016
103016
113016
123016
133016
143016
153016
163017
173017
183117
193117
203117
213117
223117
233117
243117
253117
263117
273117
283117
293117
303117
313117

How December really feels in Bultfontein

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bultfontein weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 18°8412.113.64.8
Feb29° / 17°7110.5135.3
Mar28° / 15°6810.112.26.5
Apr24° / 11°446.911.37.8
May22° / 203.110.68.3
Jun19° / 111.710.28.0
Jul19° / 7110.48.2
Aug21° / 162.1118.6
Sep26° / 142.511.88.6
Oct28° / 13°456.912.77.1
Nov29° / 15°658.213.46.0
Dec30° / 16°7811.513.84.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% 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 25%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27129
37129
47129
57129
67129
77228
87327
97327
107327
117426
127426
137525
147525
157525
167525
177624
187624
197723
207723
217624
227723
237723
247723
257624
267624
277624
287723
297723
307723
317723

Chance of precipitation in December

Any precipitation

Bultfontein gets around 78 mm of rain over 11.5 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 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
132
233
333
434
534
635
735
836
936
1036
1137
1237
1337
1437
1537
1637
1737
1837
1937
2037
2138
2238
2338
2438
2538
2638
2737
2837
2937
3036
3136

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 62% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1732430
2712630
3702730
4692830
5682930
6673030
7663130
8653230
9653230
10653230
11643240
12643240
13643240
14633250
15633160
16633160
17633070
18623080
19622990
206129100
216029110
225929120
235829130
245729140
255629150
265530150
275330161
285230171
295230171
305131171
315131171

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 42 min at the start of December to 13 h 48 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 5:15 AM to 5:25 AM, and sunset from 6:55 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:156:55
213.75:156:56
313.75:156:57
413.75:156:57
513.75:156:58
613.75:156:59
713.75:166:59
813.75:167:00
913.75:167:01
1013.85:167:02
1113.85:167:02
1213.85:177:03
1313.85:177:03
1413.85:177:04
1513.85:187:05
1613.85:187:05
1713.85:187:06
1813.85:197:06
1913.85:197:07
2013.85:197:07
2113.85:207:08
2213.85:207:08
2313.85:217:09
2413.85:217:09
2513.85:227:10
2613.85:227:10
2713.85:237:10
2813.85:247:11
2913.85:247:11
3013.85:257:11
3113.85:257:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.67 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 7.67 kWh/m² in December across the year — December's 7.67 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.6Intense
27.6Intense
37.6Intense
47.6Intense
57.6Intense
67.6Intense
77.6Intense
87.6Intense
97.7Intense
107.7Intense
117.7Intense
127.7Intense
137.7Intense
147.7Intense
157.7Intense
167.7Intense
177.7Intense
187.8Intense
197.8Intense
207.7Intense
217.7Intense
227.7Intense
237.7Intense
247.7Intense
257.7Intense
267.7Intense
277.7Intense
287.7Intense
297.7Intense
307.7Intense
317.7Intense
Planning a trip in December

Is December a good time to visit Bultfontein?

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
6.9
Beach & pool
6th-best month of the year

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

What to pack for Bultfontein in December

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

In December, Bultfontein sees daytime highs around 30°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Bultfontein 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 Bultfontein peaks around January 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 13UV 15Jun 21UV 5
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug7High
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Bultfontein 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 Bultfontein is worst in June — around 17 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1917 µg/m³Dec 116 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr12Good
May16Moderate
Jun17Moderate
Jul17Moderate
Aug16Moderate
Sep16Moderate
Oct11Good
Nov6Good
Dec6Good
Location & terrain

Where is Bultfontein?

Bultfontein sits at 28.3°S, 26.1°E, 1,319 m above sea level, in South Africa. The nearest listed city is Wesselsbron, 53 km away.

Topography around Bultfontein

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

Within 3 km, the terrain around Bultfontein has only modest variations in elevation — a maximum elevation change of 40 m around an average of 1,319 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 129 m; within 80 km, significant variations in elevation — a maximum elevation change of 381 m.

The land around Bultfontein is covered by grassland (64%) within 3 km, grassland (62%) and cropland (36%) within 16 km, and grassland (58%) and cropland (37%) within 80 km.

3 km
40 m
16 km
129 m
80 km
381 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Wesselsbron 53 km · Winnie Mandela 55 km · Theunissen 56 km · Hoopstad 56 km · Welkom 67 km · Odendaalsrus 70 km · Virginia 73 km · Allanridge 77 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 Bultfontein (-28.2876°, 26.15°, elevation 1,319 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).