Mossel Bay weather in April

In April, Mossel Bay sees average daytime highs of 20°C and overnight lows near 17°C, with 43 mm of rain across 6.7 wet days and about 11.2 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 49% of the time in April, and the air most often feels humid.

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 Mossel Bay's 9th-clearest and 11th-windiest month. For the whole year in context, see Mossel Bay's year-round climate.

Daytime high
20°
5th warmest
Overnight low
17°
8th coldest
Rainfall
43 mm
6.7 wet days
Daylight
11 h 06 min
6:57 AM – 6:06 PM
Cloud cover
44%
9th clearest
Wind
16 km/h
11th windiest
Solar energy
4.04 kWh/m²
Travel score
6.9
out of 10

Mossel Bay is town in the Western Cape, South Africa.

Density
1,871/km²
people per km²
Founded
1848

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 20°C through the month.

A typical April day in Mossel Bay reaches about 20°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 22°C. Set against its neighbours, April runs about 2°C cooler than March and about 1°C warmer than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12018
22018
32018
42018
52017
62017
72017
82017
92017
102017
112017
122017
132017
142017
152017
162017
172017
182017
191916
201916
211916
221916
231916
241916
251916
261916
271916
281916
291916
301916

Mossel Bay weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 19°377.5147.4
Feb22° / 20°306.713.37.4
Mar21° / 19°417.412.37.3
Apr20° / 17°436.711.26.9
May19° / 15°406.210.26.9
Jun17° / 14°376.99.86.4
Jul17° / 13°387.2106.1
Aug17° / 13°477.610.75.9
Sep17° / 14°336.511.86.1
Oct18° / 15°437.412.96.5
Nov19° / 17°527.713.86.7
Dec21° / 18°356.814.27.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% 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 33%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17030
26931
36931
46931
56931
66931
76931
86931
96931
106931
116931
126931
136931
146832
156832
166832
176634
186634
196634
206634
216436
226436
236436
246436
256436
266634
276634
286634
296634
306634

Chance of precipitation in April

Any precipitation

Mossel Bay gets around 43 mm of rain over 6.7 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 24% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
124
224
324
423
523
623
723
823
923
1023
1123
1223
1322
1422
1522
1622
1722
1822
1922
2022
2122
2222
2322
2422
2523
2623
2723
2823
2923
3023

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the humid band about 38% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
112294910
213294910
31329499
41429488
51529488
61529487
71630487
81730476
91730466
101831465
111932455
121932444
132033434
142134423
152135413
162236403
172237382
182338372
192340352
202441341
212542321
222543311
232545291
242646271
252648260
262649250
272651230
282652220
292653210
302654200

Wind in April

Winds average 16 km/h in April.

Across April, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light 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 6:46 AM to 7:08 AM, and sunset from 6:26 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:466:26
211.66:466:25
311.66:476:24
411.66:486:22
511.56:496:21
611.56:496:20
711.56:506:18
811.46:516:17
911.46:526:15
1011.46:536:14
1111.36:536:13
1211.36:546:11
1311.36:556:10
1411.26:566:09
1511.26:566:07
1611.16:576:06
1711.16:586:05
1811.16:596:03
1911.07:006:02
2011.07:006:01
2111.07:016:00
2210.97:025:58
2310.97:035:57
2410.97:045:56
2510.87:045:55
2610.87:055:54
2710.87:065:53
2810.77:075:51
2910.77:075:50
3010.77:085:49

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.04 kWh/m².

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 7.58 kWh/m² in December across the year — April's 4.04 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.4Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.2Bright
124.2Bright
134.2Bright
144.1Bright
154.1Bright
164.0Bright
174.0Moderate
183.9Moderate
193.9Moderate
203.8Moderate
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

Is April a good time to visit Mossel Bay?

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

6.9
Sightseeing
5th-best month of the year
3.4
Beach & pool
5th-best month of the year

April is a reasonable time to visit Mossel Bay for sightseeing.

What to pack for Mossel Bay in April

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

In April, Mossel Bay sees daytime highs around 20°C and nights near 17°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Mossel Bay in April

The nearest coast averages about 18°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 21 km away) is warmest in January at about 21°C and coldest in August near 16°C.

It's comfortable for a long swim from Dec 15 to Mar 18 — about 3.1 months when the water holds above 20°C.

14°16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar20Refreshing
Apr18Cool
May17Cool
Jun16Cool
Jul16Cool
Aug16Cool
Sep16Cool
Oct17Cool
Nov19Cool
Dec20Refreshing

UV index in Mossel Bay 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 Mossel Bay peaks around January 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 14UV 13Jun 22UV 3
UV index (midday)Level
Jan13Extreme
Feb10Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Extreme
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Mossel Bay?

Mossel Bay sits at 34.2°S, 22.1°E, 43 m above sea level, in South Africa. The nearest listed city is Groot-Brakrivier, 17 km away.

Swellendam

Topography around Mossel Bay

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

Within 3 km, the terrain around Mossel Bay has only modest variations in elevation — a maximum elevation change of 175 m around an average of 28 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 336 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,504 m.

The land around Mossel Bay is covered by water (70%) within 3 km, water (69%) within 16 km, and water (35%), shrubs (27%) and grassland (22%) within 80 km.

3 km
175 m
16 km
336 m
80 km
1,504 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Groot-Brakrivier 17 km · George 38 km · Oudtshoorn 65 km · Dysselsdorp 73 km · Riversdale 82 km · Knysna 85 km · Plettenberg Bay 114 km · Swellendam 158 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 Mossel Bay (-34.1831°, 22.146°, elevation 43 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).