Johannesburg South
December
Weather in Johannesburg South for December 2026
Your guide to Johannesburg South weather in December - trends and predictions
In general, the average temperature in Johannesburg South at the beginning of December is 29.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.9 °C by the end of December.
Johannesburg South in December brings notable rainfall, with an average of 20 rainy days and a total precipitation of 142.5 mm.
Is December a good time to visit Johannesburg South? check out the best time to travel to Johannesburg South page.
✨ Is December a good time to visit Johannesburg South? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
11
Dry days
20
Rainy days
0
Snow days
27°/17°
Temperatures
19 km/h
Avg max wind
56 %
Avg humidity
Johannesburg South Weather December
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Temperatures trend during December in Johannesburg South
See the weather trend as well as the moving average line
December weather in Johannesburg South day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 28° /16° | 1.6 mm | 10 | |
| 2 Dec. |  Light rain | 30° /17° | 4.6 mm | 10 | |
| 3 Dec. | Patchy rain possible | 31° /17° | 1.4 mm | 10 | |
| 4 Dec. |  Partly cloudy | 30° /18° | 0.6 mm | 10 | |
| 5 Dec. | Light rain | 30° /18° | 3.1 mm | 10 | |
| 6 Dec. | Patchy light drizzle | 31° /18° | 1.6 mm | 10 | |
| 7 Dec. | Light rain | 29° /18° | 3.7 mm | 10 | |
| 8 Dec. | Patchy rain possible | 29° /17° | 1.3 mm | 10 | |
| 9 Dec. | Patchy rain possible | 31° /18° | 1.9 mm | 10 | |
| 10 Dec. | Light rain | 27° /16° | 6.7 mm | 9 | |
| 11 Dec. | Light rain | 27° /17° | 7.2 mm | 9 | |
| 12 Dec. |  Sunny | 29° /16° | 0.6 mm | 10 | |
| 13 Dec. | Light rain | 27° /17° | 2.6 mm | 9 | |
| 14 Dec. | Light rain | 26° /16° | 2.6 mm | 9 | |
| 15 Dec. | Patchy light drizzle | 28° /16° | 0.9 mm | 10 | |
| 16 Dec. | Light rain | 27° /16° | 2.8 mm | 9 | |
| 17 Dec. | Light rain | 30° /17° | 8.9 mm | 10 | |
| 18 Dec. | Light rain | 27° /18° | 5.8 mm | 9 | |
| 19 Dec. | Light rain | 25° /17° | 8.1 mm | 9 | |
| 20 Dec. |  Thundery outbreaks possible | 25° /16° | 6 mm | 8 | |
| 21 Dec. | Light rain | 27° /18° | 5.5 mm | 9 | |
| 22 Dec. | Light rain | 24° /17° | 5.2 mm | 8 | |
| 23 Dec. | Light rain | 27° /17° | 3.3 mm | 10 | |
| 24 Dec. | Light rain | 27° /17° | 6.1 mm | 10 | |
| 25 Dec. |  Moderate rain | 22° /16° | 12.3 mm | 8 | |
| 26 Dec. | Light rain | 25° /15° | 9.9 mm | 9 | |
| 27 Dec. | Light rain | 24° /15° | 9.6 mm | 10 | |
| 28 Dec. | Light rain | 25° /16° | 5.7 mm | 9 | |
| 29 Dec. | Light rain | 25° /15° | 4.5 mm | 10 | |
| 30 Dec. | Patchy rain possible | 26° /16° | 2.2 mm | 9 | |
| 31 Dec. | Light rain | 28° /17° | 6.3 mm | 11 | |
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Important Notice
Our weather forecast for Johannesburg South 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 Johannesburg South forecast closer to your planned date for the most up-to-date weather information.
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Johannesburg South in December - FAQ
What are the expected maximum and minimum temperatures in Johannesburg South during December?
During December, expect a variety of temperatures with highs around 27° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Johannesburg South during December?
Significant rainfall exceeding 142.5 mm is expected in Johannesburg South during December, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Johannesburg South during December?
The average wind speed in Johannesburg South during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Johannesburg South
Explore the daily rainfall trends and prepare for Johannesburg Souths December weather 💧
Typically, Johannesburg South has 20 rainy days in December with a total of 142.5 mm of rainfall.
UV exposure in Johannesburg South during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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