Atlantis weather in July

In July, Atlantis sees average daytime highs of 18°C and overnight lows near 7°C, with 69 mm of rain across 8.2 wet days and about 10 hours of daylight. It is the 12th-warmest and 2nd-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 50% of the time in July, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of July to 10 h 18 min by month's end. Set against the rest of the year, July is Atlantis's 8th-clearest and 11th-windiest month. For the whole year in context, see Atlantis's year-round climate.

Daytime high
18°
12th warmest
Overnight low
1st coldest
Rainfall
69 mm
8.2 wet days
Daylight
10 hours
7:52 AM – 5:51 PM
Cloud cover
42%
8th clearest
Wind
11 km/h
11th windiest
Solar energy
2.78 kWh/m²
Travel score
6.3
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 July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 18°C through the month.

A typical July day in Atlantis reaches about 18°C in the afternoon and slips back to 7°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 22°C. Set against its neighbours, July runs on par with June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1187
2187
3187
4187
5187
6187
7187
8187
9187
10187
11187
12187
13187
14187
15187
16187
17187
18187
19187
20187
21187
22187
23187
24177
25177
26187
27187
28187
29187
30187
31187

Atlantis weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 2nd-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 16% of July, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36634
46634
56634
66634
76535
86535
96535
106634
116535
126535
136535
146535
156535
166535
176634
186535
196535
206634
216634
226634
236634
246634
256634
266733
276733
286733
296733
306733
316733

Chance of precipitation in July

Any precipitation

Atlantis gets around 69 mm of rain over 8.2 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
528
627
727
827
927
1027
1127
1227
1327
1427
1527
1627
1727
1827
1927
2027
2127
2227
2327
2427
2527
2628
2728
2828
2928
3028
3128

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July 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 (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
271000
281000
291000
301000
311000

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 9 h 48 min at the start of July to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over July. Sunrise moves from 7:55 AM to 7:43 AM, and sunset from 5:43 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:555:43
29.87:555:44
39.87:555:44
49.87:555:45
59.87:555:45
69.87:555:45
79.87:555:46
89.97:555:46
99.97:555:47
109.97:545:47
119.97:545:48
129.97:545:49
139.97:545:49
149.97:535:50
1510.07:535:50
1610.07:525:51
1710.07:525:52
1810.07:525:52
1910.07:515:53
2010.07:515:53
2110.17:505:54
2210.17:505:55
2310.17:495:55
2410.17:485:56
2510.27:485:57
2610.27:475:57
2710.27:465:58
2810.27:465:59
2910.27:456:00
3010.37:446:00
3110.37:436:01

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 2.78 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 — July's 2.78 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.8Moderate
162.8Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.1Moderate
313.1Moderate
Planning a trip in July

Is July a good time to visit Atlantis?

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

6.3
Sightseeing
11th-best month of the year
1.9
Beach & pool
12th-best month of the year

July is a reasonable time to visit Atlantis for sightseeing.

What to pack for Atlantis in July

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

In July, Atlantis sees daytime highs around 18°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 8 days see rain.

a warm layerrain gear

Sea temperature near Atlantis in July

The nearest coast averages about 14°C in July — 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 3 — 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 July

GoodModeratePoorUnhealthyVery unhealthy

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