Humansdorp weather in December

In December, Humansdorp sees average daytime highs of 23°C and overnight lows near 17°C, with 45 mm of rain across 8 wet days and about 14.2 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 14 h 06 min at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Humansdorp's 9th-clearest and 3rd-windiest month. For the whole year in context, see Humansdorp's year-round climate.

Daytime high
23°
4th warmest
Overnight low
17°
9th coldest
Rainfall
45 mm
8 wet days
Daylight
14 h 18 min
5:09 AM – 7:25 PM
Cloud cover
48%
9th clearest
Wind
15 km/h
3rd windiest
Solar energy
7.08 kWh/m²
Travel score
7.4
out of 10

Humansdorp is town in the Eastern Cape, South Africa.

Density
1,007/km²
people per km²
Founded
1849

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 23°C through the month.

A typical December day in Humansdorp reaches about 23°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12216
22216
32316
42316
52316
62316
72316
82316
92316
102316
112317
122317
132317
142317
152317
162317
172317
182417
192417
202417
212417
222417
232417
242417
252417
262417
272417
282417
292418
302418
312418

Humansdorp weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 18°407.8147.6
Feb25° / 18°437.113.37.5
Mar24° / 17°497.712.37.6
Apr22° / 15°437.511.27.3
May21° / 13°366.210.37.3
Jun19° / 11°356.59.87.0
Jul19° / 10°376.4107.0
Aug19° / 11°537.710.76.8
Sep19° / 12°387.111.86.8
Oct21° / 14°518.212.96.8
Nov22° / 15°588.513.86.9
Dec23° / 17°45814.27.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% 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 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26040
36040
46040
56040
66040
76040
86139
96139
106238
116337
126436
136436
146535
156535
166535
176733
186733
196733
206733
216733
226733
236733
246733
256832
266832
276832
286832
296733
306733
316733

Chance of precipitation in December

Any precipitation

Humansdorp gets around 45 mm of rain over 8 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 26% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
325
425
525
625
725
825
925
1025
1125
1225
1326
1426
1526
1626
1726
1826
1926
2027
2127
2227
2327
2427
2527
2627
2726
2826
2926
3027
3127

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 38% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13340243
23240253
33040273
42940284
52740294
62640304
72540315
82340325
92240326
102240336
112140336
122040337
132039338
141939338
151939349
161839349
1718393410
1817393410
1917383411
2016383511
2116373512
2216373612
2315363612
2415363713
2514353713
2614353814
2713343814
2812343915
2912343916
3011333916
3111333917

Wind in December

Winds average 15 km/h in December.

Across December, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 06 min at the start of December to 14 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 5:08 AM to 5:17 AM, and sunset from 7:14 PM to 7:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:087:14
214.15:087:15
314.15:077:15
414.15:077:16
514.25:077:17
614.25:087:18
714.25:087:19
814.25:087:19
914.25:087:20
1014.25:087:21
1114.25:087:22
1214.25:087:22
1314.25:097:23
1414.25:097:24
1514.35:097:24
1614.35:097:25
1714.35:107:25
1814.35:107:26
1914.35:107:26
2014.35:117:27
2114.35:117:28
2214.35:127:28
2314.35:127:28
2414.35:137:29
2514.35:137:29
2614.35:147:30
2714.35:147:30
2814.35:157:30
2914.35:167:31
3014.25:167:31
3114.25:177:31

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.08 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 7.08 kWh/m² in December across the year — December's 7.08 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.1Intense
127.1Intense
137.1Intense
147.1Intense
157.1Intense
167.1Intense
177.1Intense
187.2Intense
197.2Intense
207.2Intense
217.2Intense
227.1Intense
237.1Intense
247.1Intense
257.1Intense
267.1Intense
277.1Intense
287.1Intense
297.1Intense
307.1Intense
317.1Intense
Planning a trip in December

Is December a good time to visit Humansdorp?

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

7.4
Sightseeing
4th-best month of the year
5.9
Beach & pool
4th-best month of the year

December is one of the better times to visit Humansdorp for general sightseeing.

What to pack for Humansdorp in December

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

In December, Humansdorp sees daytime highs around 23°C and nights near 17°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Humansdorp in December

The nearest coast averages about 20°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in February at about 21°C and coldest in August near 17°C.

It's comfortable for a long swim from Dec 23 to Mar 23 — about 3 months when the water holds above 20°C.

16°18°20°22°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar20Refreshing
Apr19Cool
May19Cool
Jun18Cool
Jul18Cool
Aug17Cool
Sep17Cool
Oct18Cool
Nov19Cool
Dec20Cool

UV index in Humansdorp in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Humansdorp peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 23UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Extreme
Nov11Extreme
Dec12Extreme

Air quality in Humansdorp 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 Humansdorp is worst in June — around 18 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (February, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1618 µg/m³Feb 97 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar9Good
Apr10Good
May14Moderate
Jun18Moderate
Jul15Moderate
Aug16Moderate
Sep13Moderate
Oct11Good
Nov9Good
Dec7Good
Location & terrain

Where is Humansdorp?

Humansdorp sits at 34.0°S, 24.8°E, 137 m above sea level, in South Africa. The nearest listed city is Kruisfontein, 4.0 km away.

KnysnaSomerset EastGrahamstown

Topography around Humansdorp

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

Within 3 km, the terrain around Humansdorp has only modest variations in elevation — a maximum elevation change of 189 m around an average of 145 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 757 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,686 m.

The land around Humansdorp is covered by grassland (40%) and trees (27%) within 3 km, grassland (59%) within 16 km, and grassland (36%) and water (35%) within 80 km.

3 km
189 m
16 km
757 m
80 km
1,686 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Kruisfontein 4.0 km · Jeffreys Bay 14 km · Kariega 66 km · Port Elizabeth 78 km · Plettenberg Bay 129 km · Knysna 159 km · Somerset East 164 km · Grahamstown 182 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 Humansdorp (-34.029°, 24.7691°, elevation 137 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).