Caledon weather in August

In August, Caledon sees average daytime highs of 17°C and overnight lows near 8°C, with 51 mm of rain across 8.9 wet days and about 10.7 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 39% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of August to 11 h 12 min by month's end. Set against the rest of the year, August is Caledon's 9th-clearest and 8th-windiest month. For the whole year in context, see Caledon's year-round climate.

Daytime high
17°
11th warmest
Overnight low
2nd coldest
Rainfall
51 mm
8.9 wet days
Daylight
10 h 42 min
7:25 AM – 6:08 PM
Cloud cover
48%
9th clearest
Wind
10 km/h
8th windiest
Solar energy
3.44 kWh/m²
Travel score
5.8
out of 10

Caledon is town in the Western Cape, South Africa.

Density
928/km²
people per km²
Founded
1811

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical August day in Caledon reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 21°C. Set against its neighbours, August runs on par with July and about 2°C cooler than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1177
2177
3177
4177
5177
6177
7177
8177
9177
10177
11177
12177
13177
14177
15177
16177
17178
18178
19178
20178
21178
22178
23178
24178
25178
26178
27178
28178
29178
30188
31188

Caledon weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 16°255147.8
Feb27° / 17°225.513.37.6
Mar26° / 15°28612.37.7
Apr23° / 13°386.211.27.6
May20° / 10°386.210.27.0
Jun17° / 568.69.85.9
Jul17° / 5889.95.7
Aug17° / 518.910.75.8
Sep19° / 357.211.86.5
Oct21° / 11°386.712.97.2
Nov23° / 13°385.813.87.7
Dec26° / 15°235.314.27.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26832
36832
46832
56733
66634
76634
86535
96436
106337
116238
126238
136040
146040
155941
165842
175842
185842
195743
205743
215743
225644
235644
245743
255644
265644
275743
285644
295644
305644
315644

Chance of precipitation in August

Any precipitation

Caledon gets around 51 mm of rain over 8.9 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
527
627
727
827
927
1027
1127
1227
1327
1428
1528
1628
1728
1829
1929
2029
2129
2229
2329
2429
2529
2629
2729
2828
2928
3027
3127

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 10 km/h on the calmest days to 11 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
2810calm
2910calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 18 min at the start of August to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over August. Sunrise moves from 7:40 AM to 7:06 AM, and sunset from 5:57 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.37:405:57
210.37:395:57
310.37:385:58
410.47:385:59
510.47:376:00
610.47:366:00
710.47:356:01
810.57:346:02
910.57:336:02
1010.57:326:03
1110.67:316:04
1210.67:306:05
1310.67:286:05
1410.67:276:06
1510.77:266:07
1610.77:256:08
1710.77:246:08
1810.87:236:09
1910.87:216:10
2010.87:206:11
2110.97:196:11
2210.97:186:12
2310.97:176:13
2411.07:156:14
2511.07:146:14
2611.07:136:15
2711.17:116:16
2811.17:106:17
2911.17:096:17
3011.27:076:18
3111.27:066:19

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.44 kWh/m².

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 7.68 kWh/m² in December across the year — August's 3.44 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.9Moderate
303.9Moderate
314.0Moderate
Planning a trip in August

Is August a good time to visit Caledon?

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

5.8
Sightseeing
11th-best month of the year
1.3
Beach & pool
11th-best month of the year

August is a reasonable time to visit Caledon for sightseeing.

What to pack for Caledon in August

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

In August, Caledon sees daytime highs around 17°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Caledon in August

The nearest coast averages about 15°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in January at about 19°C and coldest in July near 15°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan19Cool
Feb19Cool
Mar17Cool
Apr16Cool
May16Cool
Jun16Cool
Jul15Bracing
Aug15Bracing
Sep15Cool
Oct16Cool
Nov17Cool
Dec19Cool

UV index in Caledon in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Caledon peaks around January 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 13UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb10Very high
Mar9Very high
Apr6High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Extreme
Nov11Extreme
Dec12Extreme

Air quality in Caledon in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Caledon is worst in June — around 18 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJun 1718 µg/m³Nov 177 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb8Good
Mar12Moderate
Apr11Good
May16Moderate
Jun18Moderate
Jul16Moderate
Aug15Moderate
Sep13Moderate
Oct9Good
Nov7Good
Dec8Good
Location & terrain

Where is Caledon?

Caledon sits at 34.2°S, 19.4°E, 260 m above sea level, in South Africa. The nearest listed city is Hermanus, 27 km away.

Topography around Caledon

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

Within 3 km, the terrain around Caledon has significant variations in elevation — a maximum elevation change of 486 m around an average of 292 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,037 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,046 m.

The land around Caledon is covered by cropland (44%) within 3 km, cropland (53%) and grassland (32%) within 16 km, and grassland (31%) and water (25%) within 80 km.

3 km
486 m
16 km
1,037 m
80 km
2,046 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Hermanus 27 km · Grabouw 39 km · Gansbaai 40 km · Franschhoek 45 km · Le Roux 48 km · Somerset West 58 km · Stellenbosch 61 km · Robertson 64 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 Caledon (-34.23°, 19.4265°, elevation 260 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. 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).