Sasolburg weather in April

In April, Sasolburg sees average daytime highs of 23°C and overnight lows near 11°C, with 41 mm of rain across 6.9 wet days and about 11.4 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 23°C by the end. The sky is clear or mostly clear about 59% of the time in April, and the air most often feels dry.

Daylight stretches from about 11 h 48 min at the start of April to 11 hours by month's end. Set against the rest of the year, April is Sasolburg's 6th-clearest and 11th-windiest month. For the whole year in context, see Sasolburg's year-round climate.

Daytime high
23°
8th warmest
Overnight low
11°
6th coldest
Rainfall
41 mm
6.9 wet days
Daylight
11 h 24 min
6:28 AM – 5:50 PM
Cloud cover
37%
6th clearest
Wind
9 km/h
11th windiest
Solar energy
4.83 kWh/m²
Travel score
7.8
out of 10

Sasolburg is town.

Density
79/km²
people per km²
Founded
1954

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 24°C in the first days to 23°C by the end.

A typical April day in Sasolburg reaches about 23°C in the afternoon and slips back to 11°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, April runs about 2°C cooler than March and about 2°C warmer than May.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12513
22413
32413
42413
52413
62412
72412
82412
92412
102412
112412
122412
132411
142311
152311
162311
172311
182311
192311
202311
212310
222310
232310
242310
252310
262310
272310
28239
29239
30239

Sasolburg weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 17°13216.113.55.8
Feb27° / 16°10412.912.96.1
Mar26° / 15°8611.612.26.8
Apr23° / 11°416.911.47.8
May21° / 183.110.78.3
Jun19° / 81.610.38.1
Jul19° / 40.810.58.3
Aug22° / 122.211.18.7
Sep25° / 11°203.611.88.4
Oct27° / 13°7710.412.66.9
Nov27° / 15°10413.113.36.2
Dec27° / 16°1371713.75.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% 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 23%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27228
37228
47228
57228
67228
77327
87426
97426
107525
117525
127525
137624
147624
157624
167723
177822
187822
197921
207921
217822
227822
237921
248020
258020
268020
278119
288218
298317
308317

Chance of precipitation in April

Any precipitation

Sasolburg gets around 41 mm of rain over 6.9 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 23% and peaks near 27% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
127
226
326
425
525
624
724
824
924
1024
1124
1224
1324
1424
1525
1624
1724
1824
1924
2023
2123
2223
2322
2422
2522
2621
2720
2819
2918
3017

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
168293
270273
373252
475232
577212
679201
781181
883161
985141
1087130
1188120
1290100
139190
149280
159370
169460
179460
189550
199640
209640
219730
229730
239820
249820
259820
269910
279910
289910
299910
309910

Wind in April

Winds average 9 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 48 min at the start of April to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over April. Sunrise moves from 6:21 AM to 6:35 AM, and sunset from 6:06 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:216:06
211.76:216:05
311.76:216:04
411.76:226:03
511.76:226:02
611.66:236:01
711.66:236:00
811.66:245:58
911.56:245:57
1011.56:255:56
1111.56:255:55
1211.56:265:54
1311.46:265:53
1411.46:275:52
1511.46:275:51
1611.46:285:50
1711.36:285:49
1811.36:295:48
1911.36:305:47
2011.36:305:46
2111.26:315:45
2211.26:315:44
2311.26:325:43
2411.26:325:42
2511.16:335:41
2611.16:335:40
2711.16:345:39
2811.16:345:38
2911.06:355:38
3011.06:355:37

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.83 kWh/m².

For context, solar energy here swings from a low near 3.86 kWh/m² to a high of 6.97 kWh/m² in December across the year — April's 4.83 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
Planning a trip in April

Hazard calendar for Sasolburg

In seasonPeak

None of Sasolburg's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Sasolburg's rainy season runs October–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Sasolburg?

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

7.8
Sightseeing
6th-best month of the year
6.2
Beach & pool
4th-best month of the year

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

What to pack for Sasolburg in April

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

In April, Sasolburg sees daytime highs around 23°C and nights near 11°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Sasolburg in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sasolburg peaks around January 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 14UV 14Jun 20UV 5
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5High
Jul5High
Aug7Very high
Sep9Very high
Oct10Very high
Nov12Extreme
Dec14Extreme

Air quality in Sasolburg 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 Sasolburg is worst in July — around 103 µg/m³ PM2.5 (unhealthy), about 4.4× the cleanest month (January, 24 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 11103 µg/m³Jan 1124 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb32Moderate
Mar48Poor
Apr64Unhealthy
May88Unhealthy
Jun100Unhealthy
Jul103Unhealthy
Aug83Unhealthy
Sep65Unhealthy
Oct44Poor
Nov31Moderate
Dec25Moderate
Location & terrain

Where is Sasolburg?

Sasolburg sits at 26.8°S, 27.8°E, 1,473 m above sea level, in South Africa. The nearest listed city is Vanderbijlpark, 12 km away.

Topography around Sasolburg

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

Within 3 km, the terrain around Sasolburg has only modest variations in elevation — a maximum elevation change of 84 m around an average of 1,467 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 147 m; within 80 km, large variations in elevation — a maximum elevation change of 611 m.

The land around Sasolburg is covered by grassland (44%) and artificial surfaces (27%) within 3 km, grassland (42%) and cropland (42%) within 16 km, and grassland (54%) and cropland (34%) within 80 km.

3 km
84 m
16 km
147 m
80 km
611 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Vanderbijlpark 12 km · Vereeniging 19 km · Deneysville 29 km · Evaton 31 km · Parys 37 km · Fochville 48 km · Vredefort 50 km · Koppies 53 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 Sasolburg (-26.8136°, 27.8169°, elevation 1,473 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).