Walvis Bay weather in December

In December, Walvis Bay sees average daytime highs of 19°C and overnight lows near 15°C, with 1 mm of rain across 0.1 wet days and about 13.4 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 59% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 13 h 18 min at the start of December to 13 h 24 min by month's end. Set against the rest of the year, December is Walvis Bay's 10th-clearest and 9th-windiest month. For the whole year in context, see Walvis Bay's year-round climate.

Daytime high
19°
8th warmest
Overnight low
15°
8th coldest
Rainfall
1 mm
0.1 wet days
Daylight
13 h 24 min
6:16 AM – 7:40 PM
Cloud cover
36%
10th clearest
Wind
15 km/h
9th windiest
Solar energy
7.99 kWh/m²
Travel score
8.0
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 December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical December day in Walvis Bay reaches about 19°C in the afternoon and slips back to 15°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 21°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11915
21915
31915
41915
51915
61915
71915
81915
91915
101915
111915
121915
131915
141915
151915
161915
171915
181915
191915
201915
211915
221915
232016
242016
252016
262016
272016
282016
292016
302016
312016

Walvis Bay weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 5th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18317
28317
38317
48218
58218
68218
78218
88218
98218
108218
118218
128218
138218
148317
158317
168317
178218
188218
198218
208218
218218
228218
238119
248119
258020
268020
277921
287723
297723
307624
317525

Chance of precipitation in December

Any precipitation

Walvis Bay gets around 1 mm of rain over 0.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 0% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
261
271
281
291
301
311

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the comfortable band about 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
124751
222771
320791
418811
516831
614842
713852
812862
911872
1010882
119883
129883
138893
148893
157894
167894
176895
186895
195896
205887
215878
225869
2348610
2448412
2548313
2638314
2738215
2838116
2937918
3037819
3127820

Wind in December

Winds average 15 km/h in December.

Across December, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light 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
1714light breeze
1814light breeze
1914light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 18 min at the start of December to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:12 AM to 6:23 AM, and sunset from 7:31 PM to 7:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:127:31
213.36:137:32
313.36:137:32
413.36:137:33
513.36:137:34
613.46:137:34
713.46:137:35
813.46:147:36
913.46:147:36
1013.46:147:37
1113.46:147:37
1213.46:157:38
1313.46:157:39
1413.46:157:39
1513.46:167:40
1613.46:167:40
1713.46:167:41
1813.46:177:41
1913.46:177:42
2013.46:187:42
2113.46:187:43
2213.46:197:43
2313.46:197:44
2413.46:207:44
2513.46:207:45
2613.46:217:45
2713.46:217:45
2813.46:227:46
2913.46:227:46
3013.46:237:47
3113.46:237:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.99 kWh/m² — the sunniest month for solar.

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 — December's 7.99 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.0Intense
28.0Intense
38.0Intense
48.0Intense
58.0Intense
68.0Intense
78.0Intense
88.0Intense
98.0Intense
108.0Intense
118.0Intense
128.0Intense
138.0Intense
148.0Intense
158.0Intense
168.0Intense
178.0Intense
188.0Intense
198.0Intense
208.0Intense
218.0Intense
228.0Intense
238.0Intense
248.0Intense
258.0Intense
268.0Intense
277.9Intense
287.9Intense
297.9Intense
307.9Intense
317.9Intense
Planning a trip in December

Is December a good time to visit Walvis Bay?

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

8.0
Sightseeing
7th-best month of the year
3.7
Beach & pool
8th-best month of the year

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

What to pack for Walvis Bay in December

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

In December, Walvis Bay sees daytime highs around 19°C and nights near 15°C. Pack sun protection.

sun protection

Sea temperature near Walvis Bay in December

The nearest coast averages about 17°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).