Frankfort weather in December

In December, Frankfort sees average daytime highs of 26°C and overnight lows near 15°C, with 140 mm of rain across 16.4 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 13 h 36 min at the start of December to 13 h 42 min by month's end. Set against the rest of the year, December is Frankfort's 12th-clearest and 5th-windiest month. For the whole year in context, see Frankfort's year-round climate.

Daytime high
26°
2nd warmest
Overnight low
15°
10th coldest
Rainfall
140 mm
16.4 wet days
Daylight
13 h 42 min
5:11 AM – 6:54 PM
Cloud cover
54%
12th clearest
Wind
11 km/h
5th windiest
Solar energy
7 kWh/m²
Travel score
5.8
out of 10

Frankfort is municipality seat of Fezile Dabi District Municipality, South Africa.

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 26°C through the month.

A typical December day in Frankfort reaches about 26°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12614
22614
32614
42614
52614
62614
72614
82614
92615
102615
112615
122615
132615
142615
152615
162715
172715
182715
192715
202715
212715
222715
232715
242715
252715
262715
272715
282715
292715
302715
312716

How December really feels in Frankfort

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.

Frankfort weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 16°12114.913.56.0
Feb26° / 15°8912.3136.2
Mar25° / 14°8011.212.26.9
Apr23° / 10°406.511.47.7
May21° / 162.810.78.2
Jun18° / 81.510.37.9
Jul18° / 6110.58.0
Aug21° / 142.4118.4
Sep25° / 10°223.311.88.6
Oct26° / 12°819.712.77.1
Nov26° / 14°9912.913.36.3
Dec26° / 15°14016.413.75.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of December, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55743
65743
75743
85842
95842
105941
115842
125842
135842
145842
155842
165842
175842
185842
195842
205842
215842
225743
235743
245743
255842
265842
275842
285941
296040
306040
316139

Chance of precipitation in December

Any precipitation

Frankfort gets around 140 mm of rain over 16.4 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 52% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
251
352
453
554
654
755
855
955
1055
1155
1254
1354
1453
1553
1652
1752
1851
1951
2051
2151
2251
2351
2451
2551
2651
2751
2851
2951
3051
3150

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 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
159374
256395
355405
453425
552435
650446
749456
847476
946486
1045496
1144507
1243507
1342517
1441527
1540528
1639538
1738539
18375310
19365311
20355312
21345313
22325414
23315316
24305317
25295318
26285319
27275320
28265321
29265222
30255223
31255223

Wind in December

Winds average 11 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 36 min at the start of December to 13 h 42 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 5:08 AM to 5:18 AM, and sunset from 6:44 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:086:44
213.65:086:44
313.65:086:45
413.65:086:46
513.65:086:47
613.65:086:47
713.75:086:48
813.75:096:49
913.75:096:49
1013.75:096:50
1113.75:096:51
1213.75:106:51
1313.75:106:52
1413.75:106:52
1513.75:106:53
1613.75:116:54
1713.75:116:54
1813.75:126:55
1913.75:126:55
2013.75:126:56
2113.75:136:56
2213.75:136:57
2313.75:146:57
2413.75:146:58
2513.75:156:58
2613.75:156:58
2713.75:166:59
2813.75:166:59
2913.75:177:00
3013.75:187:00
3113.75:187:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.81 kWh/m² to a high of 7 kWh/m² in December across the year — December's 7 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.1Intense
177.1Intense
187.1Intense
197.1Intense
207.1Intense
217.1Intense
227.1Intense
237.1Intense
247.1Intense
257.1Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
317.0Intense
Planning a trip in December

Hazard calendar for Frankfort

In seasonPeak

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

Frankfort'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 Frankfort?

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

5.8
Sightseeing
12th-best month of the year
5.7
Beach & pool
8th-best month of the year

December is a reasonable time to visit Frankfort for sightseeing.

What to pack for Frankfort in December

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

In December, Frankfort sees daytime highs around 26°C and nights near 15°C. Pack rain gear and sun protection. Worth having: light clothes. About 16 days see rain.

rain gearsun protectionlight clothes

UV index in Frankfort 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 Frankfort peaks around January 14 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 14UV 15Jun 20UV 5
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5High
Aug7Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Frankfort 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 Frankfort is worst in July — around 69 µg/m³ PM2.5 (unhealthy), about 3.9× the cleanest month (January, 18 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 1468 µg/m³Jan 1418 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb23Moderate
Mar33Moderate
Apr44Poor
May56Unhealthy
Jun65Unhealthy
Jul69Unhealthy
Aug59Unhealthy
Sep50Poor
Oct33Moderate
Nov25Moderate
Dec21Moderate
Location & terrain

Where is Frankfort?

Frankfort sits at 27.3°S, 28.5°E, 1,545 m above sea level, in South Africa. The nearest listed city is Villiers, 29 km away.

Topography around Frankfort

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

Within 3 km, the terrain around Frankfort has only modest variations in elevation — a maximum elevation change of 100 m around an average of 1,535 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 159 m; within 80 km, large variations in elevation — a maximum elevation change of 676 m.

The land around Frankfort is covered by grassland (62%) within 3 km, grassland (57%) and cropland (41%) within 16 km, and grassland (57%) and cropland (40%) within 80 km.

3 km
100 m
16 km
159 m
80 km
676 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Villiers 29 km · Heilbron 52 km · Mamafubedu 56 km · Reitz 59 km · Deneysville 59 km · Vrede 68 km · Balfour 69 km · Standerton 83 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 Frankfort (-27.2789°, 28.497°, elevation 1,545 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).