Atlantis weather in April

In April, Atlantis sees average daytime highs of 24°C and overnight lows near 13°C, with 32 mm of rain across 4.2 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 57% of the time in April, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of April to 10 h 42 min by month's end. Set against the rest of the year, April is Atlantis's 6th-clearest and 8th-windiest month. For the whole year in context, see Atlantis's year-round climate.

Daytime high
24°
6th warmest
Overnight low
13°
7th coldest
Rainfall
32 mm
4.2 wet days
Daylight
11 h 12 min
7:11 AM – 6:21 PM
Cloud cover
37%
6th clearest
Wind
12 km/h
8th windiest
Solar energy
4.37 kWh/m²
Travel score
8.1
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 April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 23°C by the end.

A typical April day in Atlantis reaches about 24°C in the afternoon and slips back to 13°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 30°C. Set against its neighbours, April runs about 3°C cooler than March and about 3°C warmer than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12614
22614
32614
42614
52614
62614
72614
82514
92514
102513
112513
122513
132513
142513
152513
162413
172413
182412
192412
202412
212412
222412
232312
242312
252312
262312
272312
282312
292312
302311

Atlantis weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 6th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18020
28020
38020
48020
58020
67921
77921
87822
97822
107822
117624
127624
137525
147525
157525
167327
177327
187228
197129
207129
217030
227030
236931
246832
256832
266832
276832
286733
296634
306634

Chance of precipitation in April

Any precipitation

Atlantis gets around 32 mm of rain over 4.2 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 16% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
113
213
313
413
513
613
713
813
913
1013
1113
1213
1314
1414
1514
1614
1714
1815
1915
2015
2115
2215
2315
2416
2516
2616
2716
2816
2916
3016

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 62% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
146467
247467
348457
449457
550446
651436
751436
853425
954415
1055405
1157394
1258384
1360373
1461363
1562353
1664342
1765332
1867312
1968302
2069292
2170282
2272271
2373261
2473261
2574251
2674251
2775241
2875241
2976231
3077221

Wind in April

Winds average 12 km/h in April.

Across April, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 42 min at the start of April to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over April. Sunrise moves from 7:00 AM to 7:22 AM, and sunset from 6:41 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:006:41
211.77:016:40
311.67:026:39
411.67:026:37
511.57:036:36
611.57:046:35
711.57:056:33
811.47:056:32
911.47:066:30
1011.47:076:29
1111.37:086:28
1211.37:086:26
1311.37:096:25
1411.27:106:24
1511.27:116:23
1611.27:116:21
1711.17:126:20
1811.17:136:19
1911.17:146:18
2011.07:146:16
2111.07:156:15
2211.07:166:14
2310.97:176:13
2410.97:176:12
2510.97:186:10
2610.87:196:09
2710.87:206:08
2810.87:206:07
2910.77:216:06
3010.77:226:05

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.37 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 — April's 4.37 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.6Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.1Bright
214.1Bright
224.0Bright
234.0Moderate
243.9Moderate
253.9Moderate
263.8Moderate
273.8Moderate
283.7Moderate
293.7Moderate
303.7Moderate
Planning a trip in April

Is April a good time to visit Atlantis?

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

8.1
Sightseeing
2nd-best month of the year
7.0
Beach & pool
6th-best month of the year

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

What to pack for Atlantis in April

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

In April, Atlantis sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes. About 4 days see rain.

light clothes

Sea temperature near Atlantis in April

The nearest coast averages about 15°C in April — 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 April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 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 April

GoodModeratePoorUnhealthyVery unhealthy

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