Johannesburg
December
Weather in Johannesburg for December 2026
Your guide to Johannesburg weather in December - trends and predictions
In general, the average temperature in Johannesburg at the beginning of December is 28.7 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 25.8 °C by the end of December.
Johannesburg in December brings notable rainfall, with an average of 20 rainy days and a total precipitation of 158.9 mm.
Is December a good time to visit Johannesburg? check out the best time to travel to Johannesburg page.
✨ Is December a good time to visit Johannesburg? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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11
Dry days
20
Rainy days
0
Snow days
27°/16°
Temperatures
18 km/h
Avg max wind
57 %
Avg humidity
Johannesburg Weather December
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Temperatures trend during December in Johannesburg
See the weather trend as well as the moving average line
December weather in Johannesburg day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 28° /16° | 1.8 mm | 9 | |
| 2 Dec. |  Light rain | 29° /16° | 4.6 mm | 9 | |
| 3 Dec. | Light rain | 30° /17° | 4 mm | 9 | |
| 4 Dec. | Light rain | 29° /18° | 4.3 mm | 9 | |
| 5 Dec. |  Moderate rain | 27° /17° | 15.8 mm | 8 | |
| 6 Dec. | Light rain | 29° /17° | 3.3 mm | 9 | |
| 7 Dec. | Light rain | 28° /17° | 5.5 mm | 9 | |
| 8 Dec. | Light rain | 28° /16° | 2.7 mm | 9 | |
| 9 Dec. | Light rain | 28° /17° | 3.1 mm | 9 | |
| 10 Dec. | Light rain | 27° /16° | 4 mm | 8 | |
| 11 Dec. | Light rain | 27° /17° | 4.7 mm | 9 | |
| 12 Dec. |  Moderate or heavy rain shower | 26° /17° | 6.2 mm | 9 | |
| 13 Dec. | Moderate rain | 25° /17° | 10.2 mm | 8 | |
| 14 Dec. | Patchy rain possible | 26° /16° | 2.2 mm | 8 | |
| 15 Dec. | Patchy rain possible | 27° /16° | 1.6 mm | 9 | |
| 16 Dec. | Moderate or heavy rain shower | 26° /16° | 6.9 mm | 8 | |
| 17 Dec. | Light rain | 26° /16° | 6.4 mm | 8 | |
| 18 Dec. | Light rain | 25° /16° | 3.4 mm | 8 | |
| 19 Dec. | Light rain | 24° /16° | 5.4 mm | 8 | |
| 20 Dec. | Light rain | 26° /16° | 3.1 mm | 8 | |
| 21 Dec. | Light rain | 26° /17° | 4 mm | 8 | |
| 22 Dec. | Light rain | 24° /16° | 5.9 mm | 7 | |
| 23 Dec. | Light rain | 27° /16° | 3 mm | 9 | |
| 24 Dec. | Light rain | 29° /17° | 3.1 mm | 9 | |
| 25 Dec. | Light rain | 25° /16° | 7.3 mm | 8 | |
| 26 Dec. | Light rain | 25° /16° | 5.6 mm | 8 | |
| 27 Dec. | Light rain | 25° /16° | 9.8 mm | 8 | |
| 28 Dec. | Light rain | 26° /16° | 4 mm | 8 | |
| 29 Dec. | Light rain | 26° /16° | 4 mm | 9 | |
| 30 Dec. | Light rain | 26° /17° | 6.6 mm | 8 | |
| 31 Dec. | Light rain | 27° /16° | 6.5 mm | 9 | |
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Important Notice
Our weather forecast for Johannesburg 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 forecast closer to your planned date for the most up-to-date weather information.
Change Month
Johannesburg in December - FAQ
What are the expected maximum and minimum temperatures in Johannesburg during December?
During December, expect a variety of temperatures with highs around 27° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Johannesburg during December?
Significant rainfall exceeding 158.9 mm is expected in Johannesburg 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 during December?
The average wind speed in Johannesburg during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Johannesburg
Explore the daily rainfall trends and prepare for Johannesburgs December weather 💧
Typically, Johannesburg has 20 rainy days in December with a total of 158.9 mm of rainfall.
UV exposure in Johannesburg during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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