Ceres weather in December

In December, Ceres sees average daytime highs of 28°C and overnight lows near 14°C, with 20 mm of rain across 3.7 wet days and about 14.2 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 28°C by the end. The sky is clear or mostly clear about 72% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Ceres's 4th-clearest and 1st-windiest month. For the whole year in context, see Ceres's year-round climate.

Daytime high
28°
4th warmest
Overnight low
14°
9th coldest
Rainfall
20 mm
3.7 wet days
Daylight
14 h 12 min
5:33 AM – 7:45 PM
Cloud cover
26%
4th clearest
Wind
9 km/h
1st windiest
Solar energy
8.49 kWh/m²
Travel score
7.9
out of 10

Ceres is town in the Western Cape, South Africa.

Founded
1854

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 28°C by the end.

A typical December day in Ceres reaches about 28°C in the afternoon and slips back to 14°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 33°C. Set against its neighbours, December runs about 3°C warmer than November and about 2°C cooler than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12613
22713
32713
42713
52713
62713
72713
82714
92714
102714
112714
122714
132714
142714
152714
162814
172814
182814
192814
202814
212814
222814
232814
242814
252814
262814
272815
282815
292815
302815
312915

Ceres weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 16°152.9146.8
Feb30° / 16°132.413.26.8
Mar28° / 14°193.212.37.8
Apr24° / 11°424.711.28.1
May20° / 636.810.37.1
Jun16° / 1058.79.85.5
Jul16° / 878105.4
Aug16° / 758.610.85.6
Sep19° / 526.411.86.7
Oct22° / 365.212.87.7
Nov25° / 11°365.113.78.2
Dec28° / 14°203.714.27.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18317
28317
38317
48317
58317
68317
78317
88218
98119
108119
118119
128119
138119
148119
158119
168119
178119
188218
198218
208119
218218
228317
238416
248416
258515
268614
278614
288713
298713
308713
318812

Chance of precipitation in December

Any precipitation

Ceres gets around 20 mm of rain over 3.7 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 12% and peaks near 13% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
210
310
410
510
610
711
811
911
1011
1112
1212
1312
1412
1512
1613
1713
1813
1913
2013
2113
2212
2312
2412
2512
2612
2711
2811
2911
3011
3111

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3973
4973
5973
6964
7964
8955
9955
10946
11946
12937
13937
14937
15928
16928
17928
18928
19919
20919
21919
22919
23919
24919
25919
26919
27919
28919
29919
309010
319010

Wind in December

Winds average 9 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 9 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
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 hours 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 12 minutes over December. Sunrise moves from 5:31 AM to 5:40 AM, and sunset from 7:34 PM to 7:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:317:34
214.15:317:35
314.15:317:36
414.15:317:36
514.15:317:37
614.15:317:38
714.15:317:39
814.15:317:40
914.15:317:40
1014.25:317:41
1114.25:327:42
1214.25:327:42
1314.25:327:43
1414.25:327:44
1514.25:337:44
1614.25:337:45
1714.25:337:45
1814.25:347:46
1914.25:347:47
2014.25:347:47
2114.25:357:48
2214.25:357:48
2314.25:367:49
2414.25:367:49
2514.25:377:49
2614.25:377:50
2714.25:387:50
2814.25:397:50
2914.25:397:51
3014.25:407:51
3114.25:407:51

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 8.49 kWh/m².

For context, solar energy here swings from a low near 2.63 kWh/m² to a high of 8.52 kWh/m² in January across the year — December's 8.49 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.4Intense
28.5Intense
38.5Intense
48.5Intense
58.5Intense
68.5Intense
78.5Intense
88.5Intense
98.5Intense
108.5Intense
118.5Intense
128.5Intense
138.5Intense
148.5Intense
158.5Intense
168.5Intense
178.5Intense
188.5Intense
198.5Intense
208.5Intense
218.5Intense
228.5Intense
238.5Intense
248.5Intense
258.6Intense
268.6Intense
278.6Intense
288.6Intense
298.6Intense
308.6Intense
318.6Intense
Planning a trip in December

Hazard calendar for Ceres

In seasonPeak

None of Ceres's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Ceres's rainy season runs May–September, 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 Ceres?

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

7.9
Sightseeing
3rd-best month of the year
8.3
Beach & pool
4th-best month of the year

December is one of the better times to visit Ceres for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ceres in December

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

In December, Ceres sees daytime highs around 28°C and nights near 14°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Ceres 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 Ceres peaks around January 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighExtremeJan 14UV 14Jun 19UV 3
UV index (midday)Level
Jan14Extreme
Feb11Extreme
Mar10Very high
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep6High
Oct10Extreme
Nov12Extreme
Dec12Extreme

Air quality in Ceres 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 Ceres is worst in May — around 25 µg/m³ PM2.5 (moderate), about 3.9× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 2325 µg/m³Dec 137 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar12Good
Apr21Moderate
May25Moderate
Jun24Moderate
Jul24Moderate
Aug22Moderate
Sep17Moderate
Oct12Moderate
Nov8Good
Dec6Good
Location & terrain

Where is Ceres?

Ceres sits at 33.4°S, 19.3°E, 457 m above sea level, in South Africa. The nearest listed city is Worcester, 33 km away.

Topography around Ceres

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

Within 3 km, the terrain around Ceres has large variations in elevation — a maximum elevation change of 801 m around an average of 510 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,909 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,249 m.

The land around Ceres is covered by grassland (35%) and cropland (22%) within 3 km, grassland (45%), shrubs (22%) and cropland (21%) within 16 km, and grassland (40%), shrubs (27%) and cropland (25%) within 80 km.

3 km
801 m
16 km
1,909 m
80 km
2,249 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Worcester 33 km · Wellington 41 km · Paarl 51 km · Malmesbury 55 km · Le Roux 61 km · Franschhoek 63 km · Moorreesburg 65 km · Robertson 72 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 Ceres (-33.3689°, 19.3109°, elevation 457 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).