Siavonga weather in December

In December, Siavonga sees average daytime highs of 31°C and overnight lows near 24°C, with 218 mm of rain across 20.3 wet days and about 13 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 17% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 54 min at the start of December to 13 hours by month's end. Set against the rest of the year, December is Siavonga's 11th-clearest and 5th-windiest month. For the whole year in context, see Siavonga's year-round climate.

Daytime high
31°
4th warmest
Overnight low
24°
10th coldest
Rainfall
218 mm
20.3 wet days
Daylight
13 hours
5:32 AM – 6:31 PM
Cloud cover
73%
11th clearest
Wind
9 km/h
5th windiest
Solar energy
5.86 kWh/m²
Travel score
3.5
out of 10

Siavonga is human settlement in Zambia.

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 31°C through the month.

A typical December day in Siavonga reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283024
293024
303024
313024

How December really feels in Siavonga

Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Siavonga weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°27322.112.93.6
Feb30° / 23°20919.212.63.9
Mar30° / 23°13515.812.14.5
Apr29° / 21°375.711.66.2
May28° / 18°30.611.28.0
Jun26° / 16°10.2119.0
Jul26° / 15°10.211.19.1
Aug28° / 17°00.111.48.1
Sep32° / 21°20.311.95.5
Oct34° / 24°121.812.43.7
Nov33° / 25°781012.83.3
Dec31° / 24°21820.3133.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 70%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24060
34060
44060
53862
63763
73664
83565
93268
103268
113070
122971
132971
142674
152674
162674
172674
182674
192674
202674
212674
222575
232575
242575
252674
262575
272575
282674
292674
302674
312773

Chance of precipitation in December

Any precipitation

Siavonga gets around 218 mm of rain over 20.3 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 65% and peaks near 72% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
152
253
354
455
556
657
758
860
961
1063
1164
1265
1366
1467
1567
1668
1768
1869
1969
2069
2170
2270
2370
2471
2571
2671
2771
2872
2972
3072
3172

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
16184629
26174630
36174532
45164434
55164336
65154238
74144140
84134042
93123945
103113947
112103849
12293752
13283654
14173557
15163558
16163459
17153361
18143164
19143065
20143065
21132967
22132868
23032869
24032770
25032770
26022672
27032671
28032572
29032572
30032572
31032473

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 54 min at the start of December to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:27 AM to 5:39 AM, and sunset from 6:22 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:276:22
212.95:286:23
312.95:286:24
412.95:286:24
512.95:286:25
612.95:296:25
712.95:296:26
813.05:296:26
913.05:296:27
1013.05:306:27
1113.05:306:28
1213.05:306:29
1313.05:316:29
1413.05:316:30
1513.05:326:30
1613.05:326:31
1713.05:326:31
1813.05:336:32
1913.05:336:32
2013.05:346:33
2113.05:346:33
2213.05:356:34
2313.05:356:34
2413.05:366:35
2513.05:366:35
2613.05:376:36
2713.05:376:36
2813.05:386:36
2913.05:386:37
3013.05:396:37
3113.05:396:38

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.86 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 7.13 kWh/m² in October across the year — December's 5.86 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.0Intense
66.0Intense
76.0Bright
85.9Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Hazard calendar for Siavonga

In seasonPeak

In December, Siavonga sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Siavonga's monsoon runs December–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Siavonga?

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

3.5
Sightseeing
11th-best month of the year
5.1
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Siavonga.

What to pack for Siavonga in December

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

In December, Siavonga sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Siavonga 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 Siavonga peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 19UV 15Jul 10UV 8
UV index (midday)Level
Jan16Extreme
Feb14Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep10Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Siavonga 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 Siavonga is worst in September — around 32 µg/m³ PM2.5 (moderate), about 4.7× the cleanest month (December, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1531 µg/m³Dec 217 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar8Good
Apr8Good
May9Good
Jun12Good
Jul16Moderate
Aug25Moderate
Sep32Moderate
Oct23Moderate
Nov11Good
Dec7Good
Location & terrain

Where is Siavonga?

Siavonga sits at 16.5°S, 28.7°E, 528 m above sea level, in Zambia. The nearest listed city is Kariba, 10 km away.

KafueKaroiChilanga TownshipPalabanaChisankaneMazabuka

Topography around Siavonga

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

Within 3 km, the terrain around Siavonga has only modest variations in elevation — a maximum elevation change of 160 m around an average of 505 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 577 m; within 80 km, large variations in elevation — a maximum elevation change of 1,163 m.

The land around Siavonga is covered by water (55%) within 3 km, water (58%) and shrubs (26%) within 16 km, and shrubs (53%) and trees (20%) within 80 km.

3 km
160 m
16 km
577 m
80 km
1,163 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Kariba 10 km · Chirundu 58 km · Kafue 102 km · Karoi 109 km · Chilanga Township 117 km · Palabana 123 km · Chisankane 124 km · Mazabuka 128 km

Zambia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / D / G
230 V · 50 Hz
Prices
≈ 30% of US
price level, 2025
GDP per capita
$1,318
2025
Happiness
4.1 / 10
World Happiness, 2025
Homicide rate
5.2
per 100k, 2015
Road deaths
20.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 573
Religion
Protestant 75%Roman Catholic 20%other 3%none 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 Siavonga (-16.5382°, 28.7088°, elevation 528 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. 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).