Ermelo weather in December

In December, Ermelo sees average daytime highs of 24°C and overnight lows near 14°C, with 163 mm of rain across 18.1 wet days and about 13.6 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 23% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 13 h 30 min at the start of December to 13 h 36 min by month's end. Set against the rest of the year, December is Ermelo's 12th-clearest and 7th-windiest month. For the whole year in context, see Ermelo's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
14°
10th coldest
Rainfall
163 mm
18.1 wet days
Daylight
13 h 42 min
5:07 AM – 6:46 PM
Cloud cover
63%
12th clearest
Wind
12 km/h
7th windiest
Solar energy
6.51 kWh/m²
Travel score
5.7
out of 10

Ermelo is town in South Africa.

Founded
1880

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 24°C through the month.

A typical December day in Ermelo reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52313
62313
72313
82313
92313
102313
112413
122413
132414
142414
152414
162414
172414
182414
192414
202414
212414
222414
232414
242414
252414
262414
272414
282414
292414
302414
312414

How December really feels in Ermelo

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.

Ermelo weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 14°14416.913.56.0
Feb24° / 14°10212.212.96.5
Mar23° / 13°9011.312.26.9
Apr21° / 10°45711.47.3
May19° / 152.710.77.9
Jun17° / 71.310.47.5
Jul17° / 70.810.57.6
Aug20° / 142.511.18.2
Sep23° / 264.511.88.3
Oct23° / 11°9612.612.66.8
Nov23° / 12°12815.613.35.9
Dec24° / 14°16318.113.65.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34258
44159
54159
64159
74159
84159
94060
104060
114060
124159
134159
144159
154357
164357
174357
184456
194456
204555
214456
224456
234456
244555
254555
264753
274852
284852
294951
304852
314951

Chance of precipitation in December

Any precipitation

Ermelo gets around 163 mm of rain over 18.1 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 58% and peaks near 59% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
157
258
358
459
559
659
759
859
959
1059
1159
1259
1359
1458
1558
1657
1757
1857
1957
2057
2157
2257
2357
2458
2558
2658
2757
2857
2957
3056
3156

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 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
151472
250482
349492
448502
547512
645523
744533
842553
941554
1040564
1139574
1237585
1336595
1435596
1534606
1633607
1732608
1831609
1929629
20286210
21276211
22266212
23256213
24246214
25236215
26226216
27226216
28226117
29216118
30216118
31226018

Wind in December

Winds average 12 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.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 30 min at the start of December to 13 h 36 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 5:03 AM to 5:14 AM, and sunset from 6:36 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:036:36
213.65:036:37
313.65:046:38
413.65:046:38
513.65:046:39
613.65:046:40
713.65:046:40
813.65:046:41
913.65:046:42
1013.65:056:42
1113.65:056:43
1213.65:056:44
1313.65:066:44
1413.65:066:45
1513.75:066:45
1613.75:076:46
1713.75:076:46
1813.75:076:47
1913.75:086:48
2013.75:086:48
2113.75:096:49
2213.75:096:49
2313.75:106:50
2413.75:106:50
2513.75:116:50
2613.75:116:51
2713.75:126:51
2813.75:126:52
2913.75:136:52
3013.65:136:52
3113.65:146:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.51 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 6.51 kWh/m² in December across the year — December's 6.51 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in December

Hazard calendar for Ermelo

In seasonPeak

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

Ermelo's rainy season runs October–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 Ermelo?

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

5.7
Sightseeing
12th-best month of the year
4.7
Beach & pool
7th-best month of the year

December is a reasonable time to visit Ermelo for sightseeing.

What to pack for Ermelo in December

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

In December, Ermelo sees daytime highs around 24°C and nights near 14°C. Pack rain gear and sun protection. Worth having: light clothes. About 18 days see rain.

rain gearsun protectionlight clothes

UV index in Ermelo 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 Ermelo peaks around January 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 15UV 15Jun 20UV 5
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5High
Jul6High
Aug8Very high
Sep9Very high
Oct10Extreme
Nov12Extreme
Dec14Extreme

Air quality in Ermelo 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 Ermelo is worst in July — around 31 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 2331 µg/m³Dec 2211 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar16Moderate
Apr20Moderate
May23Moderate
Jun26Moderate
Jul31Moderate
Aug31Moderate
Sep29Moderate
Oct18Moderate
Nov14Moderate
Dec11Good
Location & terrain

Where is Ermelo?

Ermelo sits at 26.5°S, 30.0°E, 1,700 m above sea level, in South Africa. The nearest listed city is Breyten, 26 km away.

Topography around Ermelo

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

Within 3 km, the terrain around Ermelo has only modest variations in elevation — a maximum elevation change of 102 m around an average of 1,714 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 236 m; within 80 km, large variations in elevation — a maximum elevation change of 953 m.

The land around Ermelo is covered by grassland (49%) and artificial surfaces (38%) within 3 km, grassland (69%) and cropland (24%) within 16 km, and grassland (61%) and cropland (27%) within 80 km.

3 km
102 m
16 km
236 m
80 km
953 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Breyten 26 km · Hendrina 49 km · Bethal 52 km · Carolina 53 km · Driefontein 66 km · Daggakraal 67 km · Trichardt 75 km · Thubelihle 77 km

South Africa travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / M / N
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
5.0 / 10
World Happiness, 2025
Safe drinking water
68%
of population, 2024
Homicide rate
43.7
per 100k, 2022
Road deaths
22.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very high
EF EPI 602
Religion
Christian 86%or other traditional African religions 5%nothing in particular 5%Muslim 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 Ermelo (-26.5333°, 29.9833°, elevation 1,700 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).