Hammanskraal weather in December

In December, Hammanskraal sees average daytime highs of 29°C and overnight lows near 18°C, with 104 mm of rain across 14.5 wet days and about 13.6 hours of daylight. It is the 3rd-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 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 Hammanskraal's 12th-clearest and 5th-windiest month. For the whole year in context, see Hammanskraal's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
104 mm
14.5 wet days
Daylight
13 h 36 min
5:16 AM – 6:50 PM
Cloud cover
56%
12th clearest
Wind
10 km/h
5th windiest
Solar energy
6.68 kWh/m²
Travel score
5.1
out of 10

Hammanskraal is town in Gauteng, South Africa.

Density
14,862/km²
people per km²

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 Hammanskraal 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
22818
32818
42818
52818
62818
72818
82818
92818
102918
112918
122918
132918
142918
152918
162918
172918
182918
192918
202919
212919
222919
232919
242919
252919
262919
272919
282919
292919
302919
312919

Hammanskraal weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°9714.513.44.9
Feb29° / 19°8310.912.95.3
Mar28° / 17°779.512.26.5
Apr26° / 14°355.611.47.8
May24° / 10°152.310.88.9
Jun21° / 6110.48.7
Jul21° / 30.610.68.8
Aug24° / 51.111.19.2
Sep28° / 14°15211.88.0
Oct29° / 16°578.112.66.2
Nov29° / 17°8511.813.25.5
Dec29° / 18°10414.513.65.1

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 24% of December, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35446
45446
55446
65446
75545
85545
95644
105644
115743
125743
135941
145941
155941
165941
175941
185941
195941
205941
215842
225842
235842
245743
255743
265842
275842
285941
295941
306040
316139

Chance of precipitation in December

Any precipitation

Hammanskraal gets around 104 mm of rain over 14.5 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 47% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
143
244
344
445
546
646
747
847
947
1047
1147
1247
1347
1447
1547
1647
1746
1846
1946
2046
2146
2246
2346
2446
2547
2647
2746
2846
2946
3046
3146

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 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13045250
22945260
32845260
42746270
52546280
62446300
72345310
82245321
92145341
102045351
111944361
121844371
131744381
141644381
151644391
161544391
171544402
181443402
191443412
201343423
211342423
221241433
231240444
241240444
251239454
261238464
271237475
281236475
291335485
301334485
311334485

Wind in December

Winds average 10 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
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
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 5:13 AM to 5:23 AM, and sunset from 6:41 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:136:41
213.55:136:41
313.55:136:42
413.55:136:43
513.55:136:43
613.55:136:44
713.55:136:45
813.55:136:45
913.55:146:46
1013.55:146:47
1113.65:146:47
1213.65:146:48
1313.65:156:49
1413.65:156:49
1513.65:156:50
1613.65:166:50
1713.65:166:51
1813.65:176:51
1913.65:176:52
2013.65:176:52
2113.65:186:53
2213.65:186:53
2313.65:196:54
2413.65:196:54
2513.65:206:55
2613.65:206:55
2713.65:216:56
2813.65:216:56
2913.65:226:56
3013.65:236:57
3113.65:236:57

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.68 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 6.68 kWh/m² in December across the year — December's 6.68 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
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
166.7Intense
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 Hammanskraal

In seasonPeak

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

Hammanskraal'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 Hammanskraal?

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

5.1
Sightseeing
11th-best month of the year
6.4
Beach & pool
10th-best month of the year

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

What to pack for Hammanskraal in December

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

In December, Hammanskraal 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 Hammanskraal 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 Hammanskraal peaks around January 1 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 1UV 14Jun 17UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5High
Jul6High
Aug7Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Hammanskraal 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 Hammanskraal 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 Hammanskraal?

Hammanskraal sits at 25.4°S, 28.3°E, 1,110 m above sea level, in South Africa. The nearest listed city is Soshanguve, 20 km away.

Topography around Hammanskraal

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

Within 3 km, the terrain around Hammanskraal has only modest variations in elevation — a maximum elevation change of 76 m around an average of 1,102 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 231 m; within 80 km, large variations in elevation — a maximum elevation change of 809 m.

The land around Hammanskraal is covered by grassland (40%) and artificial surfaces (34%) within 3 km, grassland (46%) and shrubs (29%) within 16 km, and grassland (42%) and shrubs (31%) within 80 km.

3 km
76 m
16 km
231 m
80 km
809 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Soshanguve 20 km · Mabopane 25 km · Moloto South 37 km · Ga-Rankuwa 37 km · Cullinan 38 km · Pretoria 39 km · Letlhabile 46 km · Centurion 51 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 Hammanskraal (-25.4089°, 28.287°, elevation 1,110 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).