Walvis Bay weather in April

In April, Walvis Bay sees average daytime highs of 21°C and overnight lows near 16°C, with 3 mm of rain across 0.5 wet days and about 11.5 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 76% of the time in April, and the air most often feels comfortable.

Daylight stretches from about 11 h 48 min at the start of April to 11 h 12 min by month's end. Set against the rest of the year, April is Walvis Bay's 4th-clearest and 8th-windiest month. For the whole year in context, see Walvis Bay's year-round climate.

Daytime high
21°
2nd warmest
Overnight low
16°
9th coldest
Rainfall
3 mm
0.5 wet days
Daylight
11 h 30 min
7:18 AM – 6:46 PM
Cloud cover
23%
4th clearest
Wind
15 km/h
8th windiest
Solar energy
5.65 kWh/m²
Travel score
8.6
out of 10

Walvis Bay is city and harbour in Erongo Region, Namibia.

Founded
1840

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 21°C through the month.

A typical April day in Walvis Bay reaches about 21°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°C. Set against its neighbours, April runs on par with March and on par with May.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12117
22117
32117
42117
52117
62117
72116
82116
92116
102116
112116
122116
132116
142116
152116
162116
172116
182116
192116
202116
212016
222016
232015
242015
252015
262015
272015
282015
292015
302015

Walvis Bay weather by month

How April compares with the rest of the year at a glance. April is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 17°30.613.38.0
Feb21° / 17°40.812.88.1
Mar21° / 17°30.512.28.4
Apr21° / 16°30.511.58.6
May20° / 15°10.210.98.7
Jun20° / 14°00.110.68.7
Jul20° / 13°10.110.78.6
Aug18° / 12°00.111.27.8
Sep17° / 12°10.211.97.4
Oct18° / 13°0012.57.6
Nov19° / 14°00.113.17.9
Dec19° / 15°10.113.48.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18911
29010
39010
49010
5919
6928
7928
8928
9928
10928
11928
12928
13928
14928
15928
16928
17928
18928
19928
20928
21928
22928
23928
24937
25937
26937
27937
28946
29946
30946

Chance of precipitation in April

Any precipitation

Walvis Bay gets around 3 mm of rain over 0.5 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 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
13
23
33
43
52
62
72
82
92
102
112
122
132
142
152
162
172
182
192
202
212
222
232
242
251
261
271
281
291
300

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 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11472131
21571131
31671121
41869121
51969111
62068111
72267101
82366101
9256690
10276490
11296290
12316180
13335980
14355780
15375580
16395380
17425170
18444970
19464770
20484560
21504460
22534250
23554050
24573940
25593740
26613540
27643330
28663130
29682930
30692830

Wind in April

Winds average 15 km/h in April.

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

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light 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 48 min at the start of April to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over April. Sunrise moves from 7:13 AM to 7:24 AM, and sunset from 7:01 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:137:01
211.87:137:00
311.87:136:59
411.77:146:58
511.77:146:57
611.77:146:56
711.77:156:55
811.67:156:54
911.67:166:53
1011.67:166:52
1111.67:166:51
1211.67:176:50
1311.57:176:49
1411.57:176:48
1511.57:186:47
1611.57:186:46
1711.47:196:45
1811.47:196:44
1911.47:196:44
2011.47:206:43
2111.47:206:42
2211.37:216:41
2311.37:216:40
2411.37:216:39
2511.37:226:39
2611.37:226:38
2711.27:236:37
2811.27:236:36
2911.27:236:35
3011.27:246:35

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.65 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 7.99 kWh/m² in December across the year — April's 5.65 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.1Intense
36.1Intense
46.0Intense
56.0Intense
66.0Bright
76.0Bright
85.9Bright
95.9Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in April

Is April a good time to visit Walvis Bay?

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

8.6
Sightseeing
3rd-best month of the year
5.0
Beach & pool
2nd-best month of the year

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

What to pack for Walvis Bay in April

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

In April, Walvis Bay sees daytime highs around 21°C and nights near 16°C. Worth packing: sun protection.

sun protection

Sea temperature near Walvis Bay 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 16 km away) is warmest in February at about 18°C and coldest in August near 13°C.

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

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan18Cool
Feb18Cool
Mar18Cool
Apr16Cool
May15Bracing
Jun14Bracing
Jul14Bracing
Aug13Bracing
Sep13Bracing
Oct14Bracing
Nov15Cool
Dec17Cool

UV index in Walvis Bay 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 Walvis Bay peaks around January 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 15UV 14Jun 18UV 6
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar13Extreme
Apr9Very high
May7High
Jun5High
Jul6High
Aug7Very high
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Walvis Bay 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 Walvis Bay is worst in July — around 36 µg/m³ PM2.5 (poor), about 7.8× the cleanest month (January, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1235 µg/m³Jan 145 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb6Good
Mar5Good
Apr9Good
May24Moderate
Jun33Moderate
Jul36Poor
Aug25Moderate
Sep11Good
Oct7Good
Nov6Good
Dec5Good
Location & terrain

Where is Walvis Bay?

Walvis Bay sits at 23.0°S, 14.5°E, 6 m above sea level, in Namibia. The nearest listed city is Swakopmund, 31 km away.

KatuturaRehobothWindhoekOkahandjaOtjiwarongoMarientalLüderitz

Topography around Walvis Bay

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

Within 3 km, the terrain around Walvis Bay has only modest variations in elevation — a maximum elevation change of 14 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, large variations in elevation — a maximum elevation change of 873 m.

The land around Walvis Bay is covered by bare terrain (37%), artificial surfaces (31%) and water (28%) within 3 km, bare terrain (53%) and water (43%) within 16 km, and bare terrain (65%) and water (33%) within 80 km.

3 km
14 m
16 km
130 m
80 km
873 m
shrubsgrasslandartificial surfacesbare terrainwaterwetland
April weather nearby: Swakopmund 31 km · Katutura 266 km · Rehoboth 267 km · Windhoek 268 km · Okahandja 269 km · Otjiwarongo 355 km · Mariental 398 km · Lüderitz 416 km

Namibia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / M
220 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$4,876
2025
Happiness
4.8 / 10
World Happiness, 2025
Homicide rate
11.2
per 100k, 2021
Road deaths
34.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Christian 98%unaffiliated 2%other 1%

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 Walvis Bay (-22.9575°, 14.5053°, elevation 6 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).