Atlantis weather in August

In August, Atlantis sees average daytime highs of 18°C and overnight lows near 8°C, with 59 mm of rain across 8.5 wet days and about 10.8 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 46% 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 Atlantis's 9th-clearest and 9th-windiest month. For the whole year in context, see Atlantis's year-round climate.

Daytime high
18°
11th warmest
Overnight low
2nd coldest
Rainfall
59 mm
8.5 wet days
Daylight
10 h 42 min
7:28 AM – 6:12 PM
Cloud cover
45%
9th clearest
Wind
12 km/h
9th windiest
Solar energy
3.58 kWh/m²
Travel score
6.4
out of 10

Atlantis is town in the Western Cape, South Africa.

Density
2,869/km²
people per km²

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 18°C through the month.

A typical August day in Atlantis reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 22°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)
1187
2187
3187
4187
5187
6187
7187
8187
9187
10188
11188
12188
13188
14188
15188
16188
17188
18188
19188
20188
21188
22188
23188
24188
25188
26188
27188
28189
29199
30199
31199

Atlantis 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
Jan29° / 17°102.2147.4
Feb29° / 17°101.913.27.3
Mar27° / 16°112.212.38.1
Apr24° / 13°324.211.28.1
May21° / 10°476.510.37.3
Jun18° / 769.49.86.3
Jul18° / 698.2106.3
Aug18° / 598.510.86.4
Sep20° / 10°366.311.87.0
Oct23° / 12°244.112.88.1
Nov25° / 14°214.113.78.2
Dec27° / 16°122.914.28.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36832
46832
56931
66832
76832
86931
96832
106832
116832
126832
136733
146634
156634
166634
176634
186634
196535
206436
216436
226337
236337
246238
256238
266040
276040
285941
295941
305842
315842

Chance of precipitation in August

Any precipitation

Atlantis gets around 59 mm of rain over 8.5 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 26% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
327
427
527
627
727
827
927
1027
1126
1226
1326
1426
1526
1626
1726
1826
1926
2026
2126
2226
2326
2426
2526
2626
2726
2825
2925
3025
3124

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17982
18982
19982
20982
21982
22973
23973
24973
25973
26973
27973
28973
29964
30964
31964

Wind in August

Winds average 12 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

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 7:43 AM to 7:09 AM, and sunset from 6:02 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.37:436:02
210.37:426:02
310.47:416:03
410.47:406:04
510.47:396:05
610.47:386:05
710.57:376:06
810.57:366:07
910.57:356:07
1010.67:346:08
1110.67:336:09
1210.67:326:10
1310.77:316:10
1410.77:306:11
1510.77:296:12
1610.77:286:12
1710.87:276:13
1810.87:266:14
1910.87:246:15
2010.97:236:15
2110.97:226:16
2210.97:216:17
2311.07:196:17
2411.07:186:18
2511.07:176:19
2611.17:166:20
2711.17:146:20
2811.17:136:21
2911.27:126:22
3011.27:106:22
3111.27:096:23

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.58 kWh/m².

For context, solar energy here swings from a low near 2.53 kWh/m² to a high of 8.37 kWh/m² in January across the year — August's 3.58 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.2Moderate
33.2Moderate
43.2Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.9Moderate
263.9Moderate
273.9Moderate
284.0Moderate
294.0Bright
304.0Bright
314.1Bright
Planning a trip in August

Is August a good time to visit Atlantis?

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

6.4
Sightseeing
10th-best month of the year
2.1
Beach & pool
11th-best month of the year

August is a reasonable time to visit Atlantis for sightseeing.

What to pack for Atlantis in August

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

In August, Atlantis sees daytime highs around 18°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 Atlantis in August

The nearest coast averages about 14°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 17°C and coldest in July near 14°C.

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

12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan17Cool
Feb17Cool
Mar16Cool
Apr15Cool
May15Bracing
Jun15Bracing
Jul14Bracing
Aug14Bracing
Sep15Bracing
Oct15Bracing
Nov16Cool
Dec16Cool

UV index in Atlantis 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 Atlantis 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 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 13UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb10Very high
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Very high
Nov11Extreme
Dec12Extreme

Air quality in Atlantis 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 Atlantis is worst in May — around 52 µg/m³ PM2.5 (poor), about 3.4× the cleanest month (December, 15 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 2152 µg/m³Dec 1516 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb19Moderate
Mar28Moderate
Apr41Poor
May52Poor
Jun50Poor
Jul47Poor
Aug41Poor
Sep33Moderate
Oct29Moderate
Nov18Moderate
Dec15Moderate
Location & terrain

Where is Atlantis?

Atlantis sits at 33.6°S, 18.5°E, 178 m above sea level, in South Africa. The nearest listed city is Malmesbury, 25 km away.

Topography around Atlantis

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

Within 3 km, the terrain around Atlantis has only modest variations in elevation — a maximum elevation change of 92 m around an average of 173 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 557 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,042 m.

The land around Atlantis is covered by shrubs (50%) and artificial surfaces (25%) within 3 km, shrubs (37%) and cropland (24%) within 16 km, and water (30%) and cropland (29%) within 80 km.

3 km
92 m
16 km
557 m
80 km
2,042 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Malmesbury 25 km · Durbanville 33 km · Kraaifontein 38 km · Cape Town 40 km · Rondebosch 44 km · Athlone 45 km · Kuils River 47 km · Lansdowne 47 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 Atlantis (-33.5667°, 18.4834°, elevation 178 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).