Germiston
December
Weather in Germiston for December 2025
Your guide to Germiston weather in December - trends and predictions
Until now, December 2025 in Germiston is cooler than usual, with temperatures averaging 26.4 °C, this is -3.2 °C below the typical seasonal average.
The forecast for the next days in Germiston predicts a temperature of 25.6 °C, which is cooler than the historical average.
In general, the average temperature in Germiston at the beginning of December is 30.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25 °C by the end of December.
Germiston experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 151.2 mm.
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Temperatures
Rain 🌧️
More
6
Dry days
25
Rainy days
0
Snow days
28°/18°
Temperatures
20 km/h
Avg max wind
51 %
Avg humidity
Germiston Weather December
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Temperatures trend during December in Germiston
See the weather trend as well as the moving average line
December weather in Germiston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 29° /15° | 1.6 mm | 10 | |
| 2 Dec. | Sunny | 31° /17° | 4 mm | 10 | |
| 3 Dec. | Sunny | 31° /17° | 2.8 mm | 10 | |
| 4 Dec. |  Cloudy | 30° /18° | 0.5 mm | 10 | |
| 5 Dec. | Cloudy | 31° /19° | 4.1 mm | 10 | |
| 6 Dec. |  Thundery outbreaks possible | 31° /18° | 2.3 mm | 10 | |
| 7 Dec. |  Light rain shower | 29° /17° | 5.4 mm | 10 | |
| 8 Dec. | Patchy rain possible | 30° /17° | 1.8 mm | 10 | |
| 9 Dec. | Patchy rain possible | 31° /18° | 1.8 mm | 10 | |
| 10 Dec. | Light rain shower | 27° /16° | 7.5 mm | 9 | |
| 11 Dec. | Patchy rain possible | 27° /16° | 7.1 mm | 9 | |
| 12 Dec. | Sunny | 30° /16° | 0.9 mm | 10 | |
| 13 Dec. | Patchy rain possible | 28° /18° | 1.6 mm | 9 | |
| 14 Dec. |  Partly cloudy | 30° /16° | 3.4 mm | 10 | |
| 15 Dec. | Partly cloudy | 27° /15° | 0.1 mm | 2.4 | |
| 16 Dec. | Patchy rain possible | 27° /17° | 1.2 mm | 2.2 | |
| 17 Dec. | Patchy rain possible | 28° /17° | 2 mm | 2.7 | |
| 18 Dec. |  Moderate rain | 23° /16° | 14.9 mm | 2.5 | |
| 19 Dec. | Patchy rain possible | 25° /15° | 0.5 mm | 3.7 | |
| 20 Dec. | Patchy rain possible | 27° /16° | 4.7 mm | 8 | |
| 21 Dec. | Moderate rain | 27° /15° | 8.8 mm | 7 | |
| 22 Dec. | Patchy rain possible | 25° /15° | 3.6 mm | 7 | |
| 23 Dec. | Patchy rain possible | 26° /16° | 2.7 mm | 8 | |
| 24 Dec. | Patchy rain possible | 25° /16° | 1.2 mm | 7 | |
| 25 Dec. | Patchy rain possible | 20° /16° | 3.3 mm | 7 | |
| 26 Dec. | Patchy rain possible | 25° /16° | 0.5 mm | 8 | |
| 27 Dec. | Patchy rain possible | 28° /16° | 3.5 mm | 8 | |
| 28 Dec. | Patchy rain possible | 25° /16° | 3.5 mm | 8 | |
| 29 Dec. | Patchy rain possible | 24° /15° | 5.6 mm | 9 | |
| 30 Dec. | Sunny | 27° /15° | 0.6 mm | 10 | |
| 31 Dec. | Sunny | 26° /17° | 10.3 mm | 10 | |
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Important Notice
Our weather forecast for Germiston 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 Germiston forecast closer to your planned date for the most up-to-date weather information.
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Germiston in December - FAQ
What are the expected maximum and minimum temperatures in Germiston during December?
During December, expect a variety of temperatures with highs around 28° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Germiston during December?
Significant rainfall exceeding 151.2 mm is expected in Germiston during December, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Germiston during December?
The average wind speed in Germiston during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Germiston
Explore the daily rainfall trends and prepare for Germistons December weather 💧
Typically, Germiston has 25 rainy days in December with a total of 151.2 mm of rainfall.
UV exposure in Germiston during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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