City of Johannesburg Metropolitan Municipality (Johannesburg)
December
Weather in City of Johannesburg Metropolitan Municipality for December 2025
Your guide to City of Johannesburg Metropolitan Municipality weather in December - trends and predictions
In general, the average temperature in City of Johannesburg Metropolitan Municipality at the beginning of December is 29.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.9 °C by the end of December.
City of Johannesburg Metropolitan Municipality experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 155 mm.
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Temperatures
Rain 🌧️
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1
Dry days
30
Rainy days
0
Snow days
27°/16°
Temperatures
19 km/h
Avg max wind
54 %
Avg humidity
City of Johannesburg Metropolitan Municipality in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  30° | 3 32° | 4  31° | 5 28° | 6  29° | 7  28° |
| 8 28° | 9 28° | 10 27° | 11 27° | 12 26° | 13 26° | 14  28° |
| 15 28° | 16 26° | 17 26° | 18 26° | 19 25° | 20 26° | 21 26° |
| 22 25° | 23 27° | 24 29° | 25 25° | 26 25° | 27 24° | 28 27° |
| 29 26° | 30 27° | 31 27° |
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Temperatures trend during December in City of Johannesburg Metropolitan Municipality
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Sunny | 30° /15° | 1.1 mm | 10 | |
| 2 Dec. | Moderate rain at times | 30° /17° | 2.3 mm | 9 | |
| 3 Dec. | Moderate or heavy rain shower | 32° /18° | 4 mm | 10 | |
| 4 Dec. | Partly cloudy | 31° /18° | 5 mm | 9 | |
| 5 Dec. | Moderate or heavy rain shower | 28° /18° | 17.7 mm | 8 | |
| 6 Dec. | Heavy rain at times | 29° /16° | 3.9 mm | 9 | |
| 7 Dec. | Patchy rain possible | 28° /16° | 6.6 mm | 9 | |
| 8 Dec. | Patchy rain possible | 28° /16° | 2.9 mm | 9 | |
| 9 Dec. | Patchy rain possible | 28° /17° | 3.5 mm | 9 | |
| 10 Dec. | Patchy rain possible | 27° /16° | 3.4 mm | 8 | |
| 11 Dec. | Patchy rain possible | 27° /17° | 5.2 mm | 8 | |
| 12 Dec. | Moderate or heavy rain shower | 26° /17° | 7.4 mm | 8 | |
| 13 Dec. | Moderate or heavy rain shower | 26° /16° | 11.7 mm | 8 | |
| 14 Dec. | Cloudy | 28° /16° | 2.4 mm | 8 | |
| 15 Dec. | Patchy rain possible | 28° /16° | 1.9 mm | 9 | |
| 16 Dec. | Moderate or heavy rain shower | 26° /16° | 8.1 mm | 8 | |
| 17 Dec. | Patchy rain possible | 26° /15° | 7.6 mm | 8 | |
| 18 Dec. | Patchy rain possible | 26° /16° | 2.1 mm | 8 | |
| 19 Dec. | Partly cloudy | 25° /15° | 6.4 mm | 8 | |
| 20 Dec. | Patchy rain possible | 26° /15° | 1.9 mm | 8 | |
| 21 Dec. | Sunny | 26° /16° | 3.4 mm | 8 | |
| 22 Dec. | Patchy rain possible | 25° /16° | 5.3 mm | 7 | |
| 23 Dec. | Heavy rain at times | 27° /16° | 3.5 mm | 8 | |
| 24 Dec. | Sunny | 29° /16° | 2 mm | 9 | |
| 25 Dec. | Patchy rain possible | 25° /16° | 7.1 mm | 7 | |
| 26 Dec. | Patchy rain possible | 25° /15° | 4.3 mm | 8 | |
| 27 Dec. | Patchy rain possible | 24° /15° | 9.7 mm | 7 | |
| 28 Dec. | Moderate rain at times | 27° /16° | 2.7 mm | 8 | |
| 29 Dec. | Light rain shower | 26° /16° | 4.5 mm | 8 | |
| 30 Dec. | Patchy rain possible | 27° /16° | 6.9 mm | 8 | |
| 31 Dec. | Patchy rain possible | 27° /16° | 7.4 mm | 8 | |
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Important Notice
Our weather forecast for City of Johannesburg Metropolitan Municipality 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 City of Johannesburg Metropolitan Municipality forecast closer to your planned date for the most up-to-date weather information.
City of Johannesburg Metropolitan Municipality in December - FAQ
What are the expected maximum and minimum temperatures in City of Johannesburg Metropolitan Municipality 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 City of Johannesburg Metropolitan Municipality during December?
Significant rainfall exceeding 155 mm is expected in City of Johannesburg Metropolitan Municipality during December, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in City of Johannesburg Metropolitan Municipality during December?
The average wind speed in City of Johannesburg Metropolitan Municipality during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in City of Johannesburg Metropolitan Municipality
Explore the daily rainfall trends and prepare for City of Johannesburg Metropolitan Municipalitys December weather 💧
UV exposure in City of Johannesburg Metropolitan Municipality during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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