Delmas weather in April

In April, Delmas sees average daytime highs of 23°C and overnight lows near 11°C, with 40 mm of rain across 6.6 wet days and about 11.4 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 54% 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 Delmas's 6th-clearest and 11th-windiest month. For the whole year in context, see Delmas's year-round climate.

Daytime high
23°
8th warmest
Overnight low
11°
6th coldest
Rainfall
40 mm
6.6 wet days
Daylight
11 h 24 min
6:24 AM – 5:47 PM
Cloud cover
40%
6th clearest
Wind
10 km/h
11th windiest
Solar energy
4.79 kWh/m²
Travel score
7.6
out of 10

Delmas is South African town in Mpumalanga.

Density
10,532/km²
people per km²
Founded
1907

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical April day in Delmas 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 19°C and 26°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)
12412
22312
32312
42312
52312
62312
72312
82312
92311
102311
112311
122311
132311
142311
152311
162211
172211
182210
192210
202210
212210
222210
232210
242210
252210
26229
27229
28229
29229
30229

Delmas 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
Jan26° / 15°12816.213.55.9
Feb26° / 15°10512.912.96.2
Mar25° / 14°8911.212.27.0
Apr23° / 11°406.611.47.6
May21° / 152.610.78.2
Jun18° / 71.110.48.1
Jul18° / 40.710.58.1
Aug21° / 112.111.18.5
Sep25° / 10°243.411.88.5
Oct25° / 12°8310.812.67.0
Nov25° / 14°1041413.36.2
Dec25° / 15°13817.513.65.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26733
36733
46733
56733
66832
76832
86832
96931
106931
116931
127030
137030
147129
157228
167327
177327
187426
197525
207525
217624
227624
237723
247723
257822
267921
278020
288020
298020
308218

Chance of precipitation in April

Any precipitation

Delmas gets around 40 mm of rain over 6.6 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 22% and peaks near 29% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
129
228
327
427
526
626
725
825
924
1024
1124
1224
1324
1424
1524
1623
1723
1822
1922
2021
2121
2220
2320
2419
2519
2618
2717
2816
2916
3015

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
172253
274233
376222
478202
580182
682162
784151
886131
988111
1089101
119190
129280
139370
149460
159550
169550
179640
189640
199730
209730
219820
229820
239820
249910
259910
269910
279910
289910
299910
309910

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 10 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
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 6:17 AM to 6:31 AM, and sunset from 6:03 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:176:03
211.76:176:02
311.76:186:01
411.76:186:00
511.76:195:59
611.66:195:58
711.66:205:56
811.66:205:55
911.66:215:54
1011.56:215:53
1111.56:225:52
1211.56:225:51
1311.56:235:50
1411.46:235:49
1511.46:235:48
1611.46:245:47
1711.46:245:46
1811.36:255:45
1911.36:255:44
2011.36:265:43
2111.36:265:42
2211.26:275:41
2311.26:275:40
2411.26:285:39
2511.26:285:38
2611.16:295:38
2711.16:305:37
2811.16:305:36
2911.16:315:35
3011.06:315:34

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.79 kWh/m².

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 6.71 kWh/m² in December across the year — April's 4.79 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in April

Hazard calendar for Delmas

In seasonPeak

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

Delmas'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 Delmas?

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

7.6
Sightseeing
6th-best month of the year
5.6
Beach & pool
6th-best month of the year

April is one of the better times to visit Delmas for general sightseeing.

What to pack for Delmas in April

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

In April, Delmas 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 Delmas in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Delmas peaks around January 1 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 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 1UV 14Jun 19UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul6High
Aug7Very high
Sep9Very high
Oct10Extreme
Nov12Extreme
Dec14Extreme

Air quality in Delmas 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 Delmas is worst in June — around 259 µg/m³ PM2.5 (very unhealthy), about 6.0× the cleanest month (January, 43 µg/m³).

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

0306090120150180210240270JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyVery unhealthyUnhealthyPoorJun 23259 µg/m³Jan 1344 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb63Unhealthy
Mar101Unhealthy
Apr158Very unhealthy
May232Very unhealthy
Jun259Very unhealthy
Jul259Very unhealthy
Aug200Very unhealthy
Sep144Unhealthy
Oct91Unhealthy
Nov65Unhealthy
Dec50Poor
Location & terrain

Where is Delmas?

Delmas sits at 26.1°S, 28.7°E, 1,558 m above sea level, in South Africa. The nearest listed city is Etwatwa, 23 km away.

Topography around Delmas

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

Within 3 km, the terrain around Delmas has only modest variations in elevation — a maximum elevation change of 57 m around an average of 1,559 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 191 m; within 80 km, large variations in elevation — a maximum elevation change of 795 m.

The land around Delmas is covered by cropland (46%) and grassland (33%) within 3 km, cropland (59%) and grassland (35%) within 16 km, and grassland (56%) and cropland (28%) within 80 km.

3 km
57 m
16 km
191 m
80 km
795 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Etwatwa 23 km · Springs 31 km · Brakpan 33 km · Leslie 34 km · Lebohang 35 km · Benoni 36 km · Nigel 38 km · Bronkhorstspruit 38 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 Delmas (-26.1466°, 28.6832°, elevation 1,558 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).