Ceres weather in September

In September, Ceres sees average daytime highs of 19°C and overnight lows near 7°C, with 52 mm of precipitation across 6.4 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 20°C by the end. The sky is clear or mostly clear about 47% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Ceres's 12th-clearest and 7th-windiest month. For the whole year in context, see Ceres's year-round climate.

Daytime high
19°
9th warmest
Overnight low
4th coldest
Precipitation
52 mm
6.4 wet days
Daylight
11 h 48 min
6:43 AM – 6:31 PM
Cloud cover
43%
12th clearest
Wind
7 km/h
7th windiest
Solar energy
5.07 kWh/m²
Travel score
6.7
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 September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 20°C by the end.

A typical September day in Ceres reaches about 19°C in the afternoon and slips back to 7°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 25°C. Set against its neighbours, September runs about 2°C warmer than August and about 3°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1176
2176
3176
4186
5186
6186
7186
8186
9186
10186
11187
12187
13187
14187
15197
16197
17197
18197
19197
20197
21197
22197
23197
24197
25197
26197
27197
28207
29207
30207

Ceres weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 5th-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 September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26238
36238
46238
56238
66238
76238
86238
96337
106238
116238
126238
136238
146337
156337
166337
176337
186337
196337
206436
216436
226436
236436
246535
256634
266634
276733
286733
296733
306733

Chance of precipitation in September

Any precipitation

Ceres gets around 52 mm of rain and snow over 6.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 21% and peaks near 25% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202530
Rain chance (%)
125
224
324
424
523
623
722
822
922
1021
1121
1221
1321
1421
1521
1621
1721
1821
1921
2021
2122
2221
2321
2421
2521
2620
2720
2819
2919
3019

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
16991
17991
18991
19991
20991
21991
22991
23991
24991
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 18 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over September. Sunrise moves from 7:04 AM to 6:23 AM, and sunset from 6:21 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:046:21
211.37:036:21
311.37:026:22
411.47:006:23
511.46:596:23
611.46:576:24
711.56:566:25
811.56:556:25
911.66:536:26
1011.66:526:27
1111.66:506:28
1211.76:496:28
1311.76:476:29
1411.76:466:30
1511.86:456:30
1611.86:436:31
1711.86:426:32
1811.96:406:32
1911.96:396:33
2011.96:376:34
2112.06:366:34
2212.06:356:35
2312.06:336:36
2412.16:326:37
2512.16:306:37
2612.26:296:38
2712.26:286:39
2812.26:266:39
2912.36:256:40
3012.36:236:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.07 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 — September's 5.07 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.4Bright
34.4Bright
44.5Bright
54.5Bright
64.6Bright
74.6Bright
84.7Bright
94.7Bright
104.8Bright
114.8Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.4Bright
235.5Bright
245.5Bright
255.6Bright
265.6Bright
275.7Bright
285.8Bright
295.8Bright
305.9Bright
Planning a trip in September

Hazard calendar for Ceres

In seasonPeak

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

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 September a good time to visit Ceres?

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

6.7
Sightseeing
9th-best month of the year
2.6
Beach & pool
9th-best month of the year

September is a reasonable time to visit Ceres for sightseeing.

What to pack for Ceres in September

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

In September, Ceres sees daytime highs around 19°C and nights near 7°C. Worth packing: a warm layer and sun protection. About 6 days see rain.

a warm layersun protection

UV index in Ceres in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. 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 September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September 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
September 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).