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South Africa weather

Weather in Harrismith for December 2025

Your guide to Harrismith weather in December - trends and predictions

    Temperatures

  • The forecast for the first days of December 2025 in Harrismith predicts temperatures to be around 24 °C, close to the historical average.

  • In general, the average temperature in Harrismith at the beginning of December is 23.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 32.7 °C by the end of December.

    • Rain 🌧️

  • The climate of Harrismith in December is notably wet, with an average of 13 rainy days, and a total of 158.1 mm of precipitation.

    • More

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Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
34°/17°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
65 %
Avg humidity

Harrismith Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
23°
2
Patchy rain possible
26°
3
Patchy rain possible
21°
4
Patchy rain possible
17°
5
Partly cloudy
23°
6
Patchy rain possible
28°
7
Patchy rain possible
28°
8
Patchy rain possible
27°
9
Patchy rain possible
24°
10
Moderate rain
23°
11
Patchy rain possible
23°
12
Patchy rain possible
25°
13
Patchy rain possible
22°
14
Patchy rain possible
26°
15
Partly cloudy
38°
16
Moderate or heavy rain shower
30°
17
Overcast
35°
18
Moderate or heavy rain shower
35°
19
Moderate or heavy rain shower
23°
20
Partly cloudy
30°
21
Patchy rain possible
31°
22
Moderate or heavy rain shower
33°
23
Moderate or heavy rain shower
32°
24
Overcast
24°
25
Patchy rain possible
30°
26
Cloudy
34°
27
Overcast
34°
28
Moderate or heavy rain shower
31°
29
Patchy rain possible
32°
30
Partly cloudy
34°
31
Moderate or heavy rain shower
34°

Temperatures trend during December in Harrismith

See the weather trend as well as the moving average line

December weather in Harrismith day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 23° /11° 5 mm 3
2 Dec. Patchy rain possible
Patchy rain possible
 26° /10° 1.3 mm 3.4
3 Dec. Patchy rain possible
Patchy rain possible
 21° /10° 0.8 mm 2.6
4 Dec. Patchy rain possible
Patchy rain possible
 17° /8° 0.1 mm 6
5 Dec. Partly cloudy
Partly cloudy
 23° /10° 0 mm 8
6 Dec. Patchy rain possible
Patchy rain possible
 28° /12° 0.4 mm 7
7 Dec. Patchy rain possible
Patchy rain possible
 28° /13° 2.9 mm 7
8 Dec. Patchy rain possible
Patchy rain possible
 27° /13° 1.4 mm 7
9 Dec. Patchy rain possible
Patchy rain possible
 24° /14° 0.5 mm 7
10 Dec. Moderate rain
Moderate rain
 23° /15° 7.5 mm 7
11 Dec. Patchy rain possible
Patchy rain possible
 23° /14° 0.4 mm 7
12 Dec. Patchy rain possible
Patchy rain possible
 25° /13° 1.7 mm 7
13 Dec. Patchy rain possible
Patchy rain possible
 22° /12° 1.3 mm 7
14 Dec. Patchy rain possible
Patchy rain possible
 26° /15° 0.3 mm 9
15 Dec. Partly cloudy
Partly cloudy
 38° /15° 0 mm 12
16 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /18° 8.3 mm 10
17 Dec. Overcast
Overcast
 35° /16° 0 mm 11
18 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 35° /18° 4.8 mm 11
19 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 23° /16° 17.7 mm 8
20 Dec. Partly cloudy
Partly cloudy
 30° /15° 0 mm 11
21 Dec. Patchy rain possible
Patchy rain possible
 31° /17° 1.2 mm 10
22 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 33° /19° 9.2 mm 10
23 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 32° /17° 21.5 mm 10
24 Dec. Overcast
Overcast
 24° /16° 9.5 mm 8
25 Dec. Patchy rain possible
Patchy rain possible
 30° /16° 0.1 mm 10
26 Dec. Cloudy
Cloudy
 34° /17° 1.2 mm 10
27 Dec. Overcast
Overcast
 34° /16° 0 mm 10
28 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /17° 55.7 mm 10
29 Dec. Patchy rain possible
Patchy rain possible
 32° /18° 2.5 mm 10
30 Dec. Partly cloudy
Partly cloudy
 34° /18° 0 mm 11
31 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 34° /18° 13.2 mm 10
Next
Important Notice
Our weather forecast for Harrismith in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Harrismith forecast closer to your planned date for the most up-to-date weather information.
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Harrismith in December - FAQ

What are the expected maximum and minimum temperatures in Harrismith during December?
Expect warm days with temperatures around 34°, cooling to mild conditions of 17° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Harrismith during December?
Significant rainfall exceeding 158.1 mm is expected in Harrismith during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Harrismith during December?
The average wind speed in Harrismith during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Harrismith

Explore the daily rainfall trends and prepare for Harrismiths December weather 💧
Typically, Harrismith has 13 rainy days in December with a total of 158.1 mm of rainfall.

UV exposure in Harrismith during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️

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Location coordinates Where is Harrismith?

Get accurate weather forecasts for Harrismith, located at latitude -28.273 and longitude 29.129. Stay updated with localized weather information tailored for Harrismith.

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