Groot-Brakrivier weather in December

In December, Groot-Brakrivier sees average daytime highs of 23°C and overnight lows near 16°C, with 39 mm of rain across 7.9 wet days and about 14.2 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 14 h 06 min at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Groot-Brakrivier's 7th-clearest and 1st-windiest month. For the whole year in context, see Groot-Brakrivier's year-round climate.

Daytime high
23°
4th warmest
Overnight low
16°
9th coldest
Rainfall
39 mm
7.9 wet days
Daylight
14 h 18 min
5:20 AM – 7:35 PM
Cloud cover
42%
7th clearest
Wind
14 km/h
1st windiest
Solar energy
7.54 kWh/m²
Travel score
7.5
out of 10

Groot-Brakrivier is village in the Western Cape, South Africa.

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 23°C through the month.

A typical December day in Groot-Brakrivier reaches about 23°C in the afternoon and slips back to 16°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12215
22215
32216
42216
52216
62316
72316
82316
92316
102316
112316
122316
132316
142316
152316
162316
172317
182317
192317
202317
212317
222317
232317
242417
252417
262417
272417
282417
292417
302417
312417

Groot-Brakrivier weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 18°418.3147.7
Feb24° / 18°337.413.37.6
Mar23° / 17°46812.37.6
Apr21° / 14°456.911.27.2
May20° / 12°41610.37.1
Jun18° / 10°346.49.86.6
Jul17° / 366.6106.4
Aug18° / 10°457.310.76.4
Sep19° / 11°366.811.86.7
Oct20° / 13°517.712.96.8
Nov21° / 15°608.413.87.0
Dec23° / 16°397.914.27.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26931
36931
46931
56931
66931
76931
86931
96931
106931
116931
127030
137030
147129
157129
167129
177228
187228
197228
207327
217327
227327
237426
247426
257525
267525
277525
287525
297525
307525
317525

Chance of precipitation in December

Any precipitation

Groot-Brakrivier gets around 39 mm of rain over 7.9 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 25% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
325
425
525
624
724
824
924
1024
1124
1224
1324
1424
1525
1625
1725
1825
1926
2026
2126
2226
2326
2427
2527
2627
2727
2827
2927
3027
3128

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 (%)
14342160
24142170
33943180
43743191
53543201
63444221
73344231
83144231
93044242
102944252
112844262
122843272
132743273
142742283
152642293
162641293
172641304
182640304
192540314
202539324
212439324
222438335
232338345
242338345
252238355
262138366
272038366
281938377
291838377
301738387
311738388

Wind in December

Winds average 14 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 06 min at the start of December to 14 h 12 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 5:18 AM to 5:27 AM, and sunset from 7:24 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:187:24
214.15:187:25
314.15:187:26
414.15:187:26
514.25:187:27
614.25:187:28
714.25:187:29
814.25:187:30
914.25:187:30
1014.25:187:31
1114.25:187:32
1214.25:187:32
1314.25:197:33
1414.25:197:34
1514.35:197:34
1614.35:207:35
1714.35:207:36
1814.35:207:36
1914.35:217:37
2014.35:217:37
2114.35:217:38
2214.35:227:38
2314.35:227:39
2414.35:237:39
2514.35:237:40
2614.35:247:40
2714.35:257:40
2814.35:257:41
2914.35:267:41
3014.25:267:41
3114.25:277:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.54 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.65 kWh/m² to a high of 7.54 kWh/m² in December across the year — December's 7.54 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.4Intense
27.5Intense
37.5Intense
47.5Intense
57.5Intense
67.5Intense
77.5Intense
87.5Intense
97.5Intense
107.5Intense
117.5Intense
127.5Intense
137.5Intense
147.6Intense
157.6Intense
167.6Intense
177.6Intense
187.6Intense
197.6Intense
207.6Intense
217.6Intense
227.6Intense
237.6Intense
247.6Intense
257.6Intense
267.5Intense
277.5Intense
287.5Intense
297.5Intense
307.5Intense
317.5Intense
Planning a trip in December

Is December a good time to visit Groot-Brakrivier?

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

7.5
Sightseeing
4th-best month of the year
5.8
Beach & pool
4th-best month of the year

December is one of the better times to visit Groot-Brakrivier for general sightseeing.

What to pack for Groot-Brakrivier in December

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

In December, Groot-Brakrivier sees daytime highs around 23°C and nights near 16°C. Pack sun protection. Worth having: light clothes. About 8 days see rain.

sun protectionlight clothes

Sea temperature near Groot-Brakrivier in December

The nearest coast averages about 20°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in January at about 21°C and coldest in August near 16°C.

It's comfortable for a long swim from Dec 13 to Mar 19 — about 3.2 months when the water holds above 20°C.

14°16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar20Refreshing
Apr18Cool
May17Cool
Jun17Cool
Jul16Cool
Aug16Cool
Sep17Cool
Oct17Cool
Nov19Cool
Dec20Refreshing

UV index in Groot-Brakrivier in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Groot-Brakrivier peaks around January 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 14UV 13Jun 22UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Extreme
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Groot-Brakrivier?

Groot-Brakrivier sits at 34.0°S, 22.2°E, 23 m above sea level, in South Africa. The nearest listed city is Mossel Bay, 17 km away.

Swellendam

Topography around Groot-Brakrivier

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

Within 3 km, the terrain around Groot-Brakrivier has only modest variations in elevation — a maximum elevation change of 198 m around an average of 76 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,438 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,099 m.

The land around Groot-Brakrivier is covered by trees (33%) within 3 km, water (36%) and grassland (21%) within 16 km, and shrubs (32%), water (29%) and grassland (23%) within 80 km.

3 km
198 m
16 km
1,438 m
80 km
2,099 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Mossel Bay 17 km · George 24 km · Oudtshoorn 49 km · Dysselsdorp 56 km · Knysna 76 km · Riversdale 89 km · Plettenberg Bay 106 km · Swellendam 164 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 Groot-Brakrivier (-34.0437°, 22.2257°, elevation 23 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).