Rundu weather in December

In December, Rundu sees average daytime highs of 31°C and overnight lows near 20°C, with 122 mm of rain across 17 wet days and about 13.1 hours of daylight. It is the 4th-warmest and 3rd-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 18% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 hours at the start of December to 13 h 06 min by month's end. Set against the rest of the year, December is Rundu's 11th-clearest and 11th-windiest month. For the whole year in context, see Rundu's year-round climate.

Daytime high
31°
4th warmest
Overnight low
20°
11th coldest
Rainfall
122 mm
17 wet days
Daylight
13 h 06 min
6:05 AM – 7:09 PM
Cloud cover
71%
11th clearest
Wind
8 km/h
11th windiest
Solar energy
6.49 kWh/m²
Travel score
3.6
out of 10

Rundu is human settlement in Namibia.

Founded
1936

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 Rundu reaches about 31°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 35°C. Set against its neighbours, December runs about 2°C cooler than November and about 1°C warmer than January.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13220
23120
33120
43120
53120
63120
73120
83120
93120
103120
113120
123120
133120
143120
153120
163120
173120
183120
193120
203120
213120
223120
233120
243120
253120
263120
273120
283120
293120
303120
313120

How December really feels in Rundu

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Rundu weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°16518.6133.9
Feb30° / 20°13216.312.64.2
Mar29° / 19°10614.612.14.7
Apr29° / 17°204.211.66.4
May28° / 13°10.111.28.3
Jun26° / 10°0010.99.4
Jul25° / 00119.4
Aug29° / 12°0011.47.6
Sep33° / 17°10.411.94.8
Oct35° / 20°143.412.43.3
Nov33° / 20°6511.712.83.5
Dec31° / 20°1221713.13.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23763
33763
43763
53664
63763
73763
83763
93763
103763
113862
123862
133862
143763
153763
163664
173664
183664
193565
203466
213367
223268
233169
243070
253070
263070
273070
283070
292971
302971
313070

Chance of precipitation in December

Any precipitation

Rundu gets around 122 mm of rain over 17 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 55% and peaks near 59% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
150
251
351
452
552
652
752
852
952
1053
1153
1253
1354
1454
1554
1654
1754
1854
1955
2055
2156
2256
2357
2458
2558
2659
2759
2859
2959
3059
3159

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
116233923
214224023
313224223
413214224
513204324
613194325
713184326
813184326
914174327
1014164228
1114154228
1215154129
1315144131
1415144032
1515133933
1615133834
1715133636
1814133537
1914133439
2014133340
2113133242
2213133143
2312133145
2411133046
2511122947
2611122948
2711122849
2811122850
2911122750
3011122750
3112122650

Wind in December

Winds average 8 km/h in December.

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

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 hours at the start of December to 13 h 06 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 6:01 AM to 6:12 AM, and sunset from 7:01 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:017:01
213.06:017:01
313.06:017:02
413.06:017:02
513.06:027:03
613.06:027:04
713.06:027:04
813.06:027:05
913.06:037:05
1013.06:037:06
1113.16:037:06
1213.16:047:07
1313.16:047:07
1413.16:047:08
1513.16:057:09
1613.16:057:09
1713.16:057:10
1813.16:067:10
1913.16:067:11
2013.16:077:11
2113.16:077:12
2213.16:087:12
2313.16:087:13
2413.16:097:13
2513.16:097:13
2613.16:107:14
2713.16:107:14
2813.16:117:15
2913.16:117:15
3013.16:127:15
3113.16:127:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.49 kWh/m².

For context, solar energy here swings from a low near 4.95 kWh/m² to a high of 7.25 kWh/m² in October across the year — December's 6.49 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in December

Hazard calendar for Rundu

In seasonPeak

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

Rundu's rainy season runs December–March, when most of the year's rain falls.

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

Is December a good time to visit Rundu?

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

3.6
Sightseeing
10th-best month of the year
5.5
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Rundu.

What to pack for Rundu in December

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

In December, Rundu sees daytime highs around 31°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Rundu in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rundu peaks around January 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 16UV 16Jul 11UV 7
UV index (midday)Level
Jan16Extreme
Feb14Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul7Very high
Aug9Very high
Sep10Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Rundu 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 Rundu is worst in September — around 49 µg/m³ PM2.5 (poor), about 13.6× the cleanest month (December, 4 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1546 µg/m³Dec 184 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr5Good
May7Good
Jun9Good
Jul16Moderate
Aug30Moderate
Sep49Poor
Oct23Moderate
Nov6Good
Dec4Good
Location & terrain

Where is Rundu?

Rundu sits at 17.9°S, 19.8°E, 1,114 m above sea level, in Namibia. The nearest listed city is Ndiyona, 99 km away.

NdiyonaGrootfonteinTsumebOndangwaHelao NafidiOngwediva

Topography around Rundu

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

Within 3 km, the terrain around Rundu has only modest variations in elevation — a maximum elevation change of 63 m around an average of 1,094 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, only modest variations in elevation — a maximum elevation change of 157 m.

The land around Rundu is covered by artificial surfaces (47%) within 3 km, shrubs (52%) and grassland (29%) within 16 km, and shrubs (87%) within 80 km.

3 km
63 m
16 km
80 m
80 km
157 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Ndiyona 99 km · Grootfontein 255 km · Tsumeb 263 km · Ondangwa 401 km · Helao Nafidi 415 km · Senanga 422 km · Ongwediva 424 km · Menongue 425 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 Rundu (-17.918°, 19.7731°, elevation 1,114 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).