Grabouw weather in April

In April, Grabouw sees average daytime highs of 20°C and overnight lows near 14°C, with 49 mm of rain across 6.4 wet days and about 11.2 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 19°C by the end. The sky is clear or mostly clear about 47% of the time in April, and the air most often feels comfortable.

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 Grabouw's 6th-clearest and 11th-windiest month. For the whole year in context, see Grabouw's year-round climate.

Daytime high
20°
5th warmest
Overnight low
14°
8th coldest
Rainfall
49 mm
6.4 wet days
Daylight
11 h 06 min
7:10 AM – 6:19 PM
Cloud cover
43%
6th clearest
Wind
14 km/h
11th windiest
Solar energy
4.1 kWh/m²
Travel score
7.1
out of 10

Grabouw is town in the Western Cape, South Africa.

Density
5,638/km²
people per km²
Founded
1856

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 21°C in the first days to 19°C by the end.

A typical April day in Grabouw reaches about 20°C in the afternoon and slips back to 14°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, April runs about 2°C cooler than March and about 2°C warmer than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12116
22116
32115
42115
52115
62115
72115
82115
92115
102115
112115
122015
132015
142015
152014
162014
172014
182014
192014
202014
212014
221914
231914
241914
251914
261914
271914
281914
291914
301913

Grabouw weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 17°255148.2
Feb23° / 18°235.113.38.2
Mar22° / 17°265.512.37.8
Apr20° / 14°496.411.27.1
May18° / 13°648.610.26.3
Jun16° / 11°10210.99.85.1
Jul16° / 10°999.8105.0
Aug16° / 10°8611.110.74.9
Sep17° / 11°568.611.85.6
Oct18° / 13°467.112.96.6
Nov20° / 14°436.613.87.0
Dec22° / 16°265.414.27.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 21% of April, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27228
37129
47129
57030
67030
77030
87030
97030
107030
116931
126931
136931
146832
156832
166832
176832
186832
196733
206634
216634
226634
236634
246634
256634
266535
276436
286436
296436
306436

Chance of precipitation in April

Any precipitation

Grabouw gets around 49 mm of rain over 6.4 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 24% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
120
221
321
420
520
620
720
820
920
1020
1120
1220
1320
1420
1521
1621
1721
1822
1922
2022
2123
2223
2323
2423
2524
2624
2724
2824
2924
3024

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the comfortable band about 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1295417
2305317
3315316
4325315
5335314
6345214
7355213
8365212
9385012
10395011
11405010
1242499
1343489
1445478
1546477
1647467
1749456
1851445
1951445
2053434
2154424
2255423
2356413
2457412
2557412
2658402
2759401
2859401
2959401
3060391

Wind in April

Winds average 14 km/h in April.

Across April, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:58 AM to 7:21 AM, and sunset from 6:39 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:586:39
211.66:596:38
311.67:006:36
411.67:006:35
511.57:016:33
611.57:026:32
711.57:036:31
811.47:046:29
911.47:046:28
1011.47:056:27
1111.37:066:25
1211.37:076:24
1311.37:076:23
1411.27:086:21
1511.27:096:20
1611.17:106:19
1711.17:116:17
1811.17:116:16
1911.07:126:15
2011.07:136:14
2111.07:146:12
2210.97:146:11
2310.97:156:10
2410.97:166:09
2510.87:176:07
2610.87:186:06
2710.87:186:05
2810.77:196:04
2910.77:206:03
3010.77:216:02

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.1 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 7.92 kWh/m² in December across the year — April's 4.1 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.3Bright
114.3Bright
124.3Bright
134.2Bright
144.2Bright
154.1Bright
164.1Bright
174.0Bright
184.0Moderate
193.9Moderate
203.9Moderate
213.8Moderate
223.8Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.5Moderate
Planning a trip in April

Hazard calendar for Grabouw

In seasonPeak

In April, Grabouw sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Grabouw's rainy season runs April–September, 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 Grabouw?

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

7.1
Sightseeing
5th-best month of the year
3.7
Beach & pool
5th-best month of the year

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

What to pack for Grabouw in April

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

In April, Grabouw sees daytime highs around 20°C and nights near 14°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Grabouw in April

The nearest coast averages about 16°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in January at about 19°C and coldest in July near 15°C.

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

14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar17Cool
Apr16Cool
May16Cool
Jun15Cool
Jul15Bracing
Aug15Bracing
Sep15Cool
Oct16Cool
Nov17Cool
Dec18Cool

UV index in Grabouw 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 Grabouw peaks around January 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 21UV 3
UV index (midday)Level
Jan13Extreme
Feb10Very high
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Extreme
Nov12Extreme
Dec12Extreme

Air quality in Grabouw 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 Grabouw is worst in June — around 28 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (December, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodJun 1228 µg/m³Dec 1211 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb11Good
Mar19Moderate
Apr21Moderate
May27Moderate
Jun28Moderate
Jul25Moderate
Aug22Moderate
Sep18Moderate
Oct17Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Grabouw?

Grabouw sits at 34.2°S, 19.0°E, 332 m above sea level, in South Africa. The nearest listed city is Somerset West, 19 km away.

Topography around Grabouw

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

Within 3 km, the terrain around Grabouw has only modest variations in elevation — a maximum elevation change of 217 m around an average of 328 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,583 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,997 m.

The land around Grabouw is covered by trees (40%) and grassland (26%) within 3 km, grassland (61%) and trees (21%) within 16 km, and water (35%) and grassland (27%) within 80 km.

3 km
217 m
16 km
1,583 m
80 km
1,997 m
treesshrubsgrasslandcroplandartificial surfaceswater
April weather nearby: Somerset West 19 km · Stellenbosch 28 km · Franschhoek 28 km · Le Roux 30 km · Hermanus 36 km · Kuils River 37 km · Caledon 39 km · Kraaifontein 44 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 Grabouw (-34.1515°, 19.0151°, elevation 332 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).