Sumbe weather in December

In December, Sumbe sees average daytime highs of 25°C and overnight lows near 25°C, with 31 mm of rain across 4.5 wet days and about 12.6 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 16% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of December to 12 h 36 min by month's end. Set against the rest of the year, December is Sumbe's 9th-clearest and 3rd-windiest month. For the whole year in context, see Sumbe's year-round climate.

Daytime high
25°
5th warmest
Overnight low
25°
8th coldest
Rainfall
31 mm
4.5 wet days
Daylight
12 h 42 min
5:41 AM – 6:20 PM
Cloud cover
69%
9th clearest
Wind
13 km/h
3rd windiest
Solar energy
5.66 kWh/m²
Travel score
7.4
out of 10

Sumbe is city in Cuanza Sul, Angola.

Density
44/km²
people per km²
Founded
1889

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 25°C through the month.

A typical December day in Sumbe reaches about 25°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 26°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12525
22525
32525
42525
52525
62525
72525
82525
92525
102525
112525
122525
132525
142525
152525
162525
172525
182525
192525
202525
212525
222525
232525
242525
252525
262525
272525
282525
292525
302525
312525

Sumbe weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°354.212.67.4
Feb27° / 26°39512.46.9
Mar27° / 26°12810.612.16.1
Apr27° / 26°536.611.86.9
May25° / 24°20.311.58.7
Jun23° / 22°20.111.48.7
Jul21° / 20°1011.48.2
Aug20° / 19°0011.68.3
Sep21° / 20°10.411.98.4
Oct23° / 23°61.812.38.3
Nov25° / 24°23412.57.6
Dec25° / 25°314.512.67.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33169
43169
53268
63268
73169
83169
93169
103268
113268
123169
133268
143268
153367
163367
173367
183466
193466
203466
213565
223565
233664
243664
253664
263763
273763
283763
293763
303763
313763

Chance of precipitation in December

Any precipitation

Sumbe gets around 31 mm of rain over 4.5 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 14% and peaks near 16% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
215
315
415
516
616
716
816
916
1016
1116
1216
1316
1415
1515
1614
1714
1814
1913
2013
2113
2213
2313
2413
2513
2613
2713
2814
2914
3014
3114

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
112871
212871
311881
411881
511881
611881
711881
811881
912862
1012862
1112862
1213843
1313843
1414833
1515814
1615814
1716804
1816804
1917794
2017794
2118775
2218775
2318775
2418775
2518784
2618784
2718784
2817794
2916804
3016804
3115814

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light 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
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 36 min at the start of December to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:36 AM to 5:48 AM, and sunset from 6:13 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:366:13
212.65:366:13
312.65:376:14
412.65:376:14
512.65:376:15
612.65:376:15
712.65:386:16
812.65:386:16
912.65:386:17
1012.65:396:17
1112.65:396:18
1212.65:406:18
1312.65:406:19
1412.75:406:19
1512.75:416:20
1612.75:416:20
1712.75:426:21
1812.75:426:21
1912.75:436:22
2012.75:436:22
2112.75:436:23
2212.75:446:23
2312.75:446:24
2412.75:456:24
2512.75:456:25
2612.75:466:25
2712.75:466:26
2812.75:476:26
2912.75:476:26
3012.75:486:27
3112.65:486:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.66 kWh/m².

For context, solar energy here swings from a low near 4.53 kWh/m² to a high of 5.97 kWh/m² in January across the year — December's 5.66 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in December

Is December a good time to visit Sumbe?

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

7.4
Sightseeing
8th-best month of the year
6.8
Beach & pool
6th-best month of the year

December is one of the better times to visit Sumbe for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sumbe in December

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

In December, Sumbe sees daytime highs around 25°C and nights near 25°C. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Sumbe in December

The nearest coast averages about 26°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 28°C and coldest in August near 20°C.

It's comfortable for a long swim from Aug 23 to Aug 9 — about 11.6 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar28Warm
Apr27Warm
May25Warm
Jun23Refreshing
Jul21Refreshing
Aug20Cool
Sep21Refreshing
Oct24Refreshing
Nov26Warm
Dec26Warm

UV index in Sumbe 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 Sumbe peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 14 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeMar 14UV 15Aug 14UV 7
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug7High
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec13Extreme

Air quality in Sumbe 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 Sumbe is worst in July — around 23 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (March, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1722 µg/m³Mar 138 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar8Good
Apr9Good
May13Moderate
Jun17Moderate
Jul23Moderate
Aug18Moderate
Sep16Moderate
Oct12Moderate
Nov8Good
Dec9Good
Location & terrain

Where is Sumbe?

Sumbe sits at 11.2°S, 13.8°E, 10 m above sea level, in Angola. The nearest listed city is Porto Amboim, 53 km away.

ChindumboCubal do LumboLobito

Topography around Sumbe

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

Within 3 km, the terrain around Sumbe has only modest variations in elevation — a maximum elevation change of 134 m around an average of 23 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 292 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,820 m.

The land around Sumbe is covered by water (31%), artificial surfaces (30%) and grassland (26%) within 3 km, water (46%) and grassland (26%) within 16 km, and water (32%), trees (26%) and grassland (26%) within 80 km.

3 km
134 m
16 km
292 m
80 km
1,820 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Porto Amboim 53 km · Conda 55 km · Ucu Seles 55 km · Capunda 68 km · Gabela 71 km · Chindumbo 107 km · Cubal do Lumbo 127 km · Lobito 133 km

Angola travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$3,129
2025
Happiness
3.8 / 10
World Happiness, 2017
Homicide rate
4.1
per 100k, 2016
Road deaths
26.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 413
Religion
Roman Catholic 41%Protestant 38%none 12%other 9%

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 Sumbe (-11.206°, 13.8437°, elevation 10 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).