Grootfontein weather in December

In December, Grootfontein sees average daytime highs of 30°C and overnight lows near 19°C, with 117 mm of rain across 15.7 wet days and about 13.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 25% of the time in December, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of December to 13 h 12 min by month's end. Set against the rest of the year, December is Grootfontein's 10th-clearest and 12th-windiest month. For the whole year in context, see Grootfontein's year-round climate.

Daytime high
30°
4th warmest
Overnight low
19°
12th coldest
Rainfall
117 mm
15.7 wet days
Daylight
13 h 12 min
6:09 AM – 7:19 PM
Cloud cover
63%
10th clearest
Wind
9 km/h
12th windiest
Solar energy
6.87 kWh/m²
Travel score
4.2
out of 10

Grootfontein is city in Namibia.

Founded
1885

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 30°C through the month.

A typical December day in Grootfontein reaches about 30°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, December runs about 1°C cooler than November and about 1°C warmer than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13119
23119
33119
43119
53119
63119
73119
83119
93119
103119
113119
123119
133119
143119
153119
163119
173119
183119
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019
313019

How December really feels in Grootfontein

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.

Grootfontein 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
Jan29° / 19°16516.9134.5
Feb28° / 18°14715.912.74.8
Mar28° / 18°11214.712.15.6
Apr27° / 15°335.811.67.6
May25° / 12°10.511.19.2
Jun23° / 0010.89.6
Jul23° / 0010.99.5
Aug27° / 11°00.111.38.9
Sep30° / 15°50.911.96.4
Oct32° / 18°234.712.54.6
Nov31° / 19°7112.112.94.2
Dec30° / 19°11715.713.24.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35149
45050
55050
65149
75149
85149
95149
105149
115050
125050
135050
145050
154951
164852
174852
184753
194555
204456
214357
224258
234258
244060
253961
263961
274060
284060
294060
304060
314060

Chance of precipitation in December

Any precipitation

Grootfontein gets around 117 mm of rain over 15.7 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 50% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
149
249
349
449
549
648
747
847
946
1046
1146
1246
1347
1447
1548
1648
1749
1850
1951
2052
2153
2254
2354
2455
2555
2655
2755
2855
2954
3054
3153

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 38% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14530250
24331250
34232261
44132261
54132261
64132261
74132261
84132261
94231261
104230271
114230271
124229282
134129282
144128292
154127293
164027303
174026313
183926314
193825324
203725344
213624355
223524365
233423376
243323376
253223387
263223388
273222388
283222389
293222389
303321379
313321379

Wind in December

Winds average 9 km/h in December, the calmest month.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 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
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 06 min at the start of December to 13 h 12 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 6:04 AM to 6:16 AM, and sunset from 7:10 PM to 7:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:047:10
213.16:057:11
313.16:057:11
413.16:057:12
513.16:057:13
613.16:057:13
713.16:067:14
813.16:067:14
913.16:067:15
1013.26:067:16
1113.26:077:16
1213.26:077:17
1313.26:077:17
1413.26:087:18
1513.26:087:18
1613.26:097:19
1713.26:097:20
1813.26:097:20
1913.26:107:21
2013.26:107:21
2113.26:117:22
2213.26:117:22
2313.26:127:23
2413.26:127:23
2513.26:137:23
2613.26:137:24
2713.26:147:24
2813.26:147:25
2913.26:157:25
3013.26:157:25
3113.26:167:26

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.87 kWh/m².

For context, solar energy here swings from a low near 4.89 kWh/m² to a high of 7.28 kWh/m² in October across the year — December's 6.87 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in December

Hazard calendar for Grootfontein

In seasonPeak

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

Grootfontein'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 Grootfontein?

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

4.2
Sightseeing
11th-best month of the year
5.9
Beach & pool
10th-best month of the year

December is a reasonable time to visit Grootfontein for sightseeing.

What to pack for Grootfontein in December

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

In December, Grootfontein sees daytime highs around 30°C and nights near 19°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Grootfontein 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 Grootfontein peaks around January 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 15UV 15Jun 23UV 7
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar14Extreme
Apr10Extreme
May9Very high
Jun7Very high
Jul7Very high
Aug9Very high
Sep9Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Grootfontein?

Grootfontein sits at 19.6°S, 18.1°E, 1,432 m above sea level, in Namibia. The nearest listed city is Tsumeb, 54 km away.

OtjiwarongoRunduOndangwaOkahandjaOngwedivaOshakatiNdiyona

Topography around Grootfontein

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

Within 3 km, the terrain around Grootfontein has only modest variations in elevation — a maximum elevation change of 86 m around an average of 1,447 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 376 m; within 80 km, large variations in elevation — a maximum elevation change of 956 m.

The land around Grootfontein is covered by shrubs (64%) within 3 km, shrubs (82%) within 16 km, and shrubs (93%) within 80 km.

3 km
86 m
16 km
376 m
80 km
956 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Tsumeb 54 km · Otjiwarongo 181 km · Rundu 255 km · Ondangwa 290 km · Okahandja 295 km · Ongwediva 317 km · Oshakati 321 km · Ndiyona 323 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 Grootfontein (-19.5733°, 18.1003°, elevation 1,432 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).