Johannesburg South
January
Weather in Johannesburg South for January 2026
Your guide to Johannesburg South weather in January - trends and predictions
So far, January 2026 in Johannesburg South is slightly warmer than the historical average by 0.7 °C.
Expect cooler weather in the next days in Johannesburg South with the forecast suggesting a temperature of 28.4 °C, lower than the historical average.
In general, the average temperature in Johannesburg South at the beginning of January is 27.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 30.6 °C by the end of January.
Johannesburg South experiences heavy rainfall in January, with over 20 rainy days and an average total precipitation 166.7 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
22
Rainy days
0
Snow days
28°/17°
Temperatures
17 km/h
Avg max wind
58 %
Avg humidity
Johannesburg South Weather January
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Temperatures trend during January in Johannesburg South
See the weather trend as well as the moving average line
January weather in Johannesburg South day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. |  Patchy rain possible | 27° /17° | 23.7 mm | 11 | |
| 2 Jan. | Patchy rain possible | 26° /16° | 6.6 mm | 11 | |
| 3 Jan. |  Cloudy | 29° /16° | 3.8 mm | 10 | |
| 4 Jan. |  Sunny | 26° /15° | 8.2 mm | 9 | |
| 5 Jan. | Light rain shower | 27° /15° | 7.9 mm | 11 | |
| 6 Jan. | Patchy rain possible | 27° /15° | 3.8 mm | 11 | |
| 7 Jan. | Patchy rain possible | 28° /18° | 14.3 mm | 11 | |
| 8 Jan. | Patchy rain possible | 27° /17° | 9.5 mm | 11 | |
| 9 Jan. | Patchy rain possible | 29° /17° | 3.4 mm | 11 | |
| 10 Jan. | Light rain shower | 29° /16° | 2.5 mm | 11 | |
| 11 Jan. | Light rain shower | 27° /16° | 12.7 mm | 11 | |
| 12 Jan. | Patchy rain possible | 27° /15° | 3.7 mm | 11 | |
| 13 Jan. | Patchy rain possible | 27° /16° | 7.3 mm | 11 | |
| 14 Jan. |  Moderate rain at times | 28° /16° | 2.4 mm | 11 | |
| 15 Jan. | Patchy rain possible | 30° /17° | 1.7 mm | 10 | |
| 16 Jan. | Moderate rain at times | 27° /16° | 9 mm | 10 | |
| 17 Jan. | Patchy rain possible | 24° /15° | 13.3 mm | 9 | |
| 18 Jan. | Patchy rain possible | 25° /15° | 2.7 mm | 9 | |
| 19 Jan. | Sunny | 28° /15° | 2.2 mm | 10 | |
| 20 Jan. | Patchy rain possible | 29° /15° | 2.8 mm | 8 | |
| 21 Jan. |  Thundery outbreaks possible | 29° /14° | 2.1 mm | 10 | |
| 22 Jan. | Patchy rain possible | 29° /15° | 0.8 mm | 12 | |
| 23 Jan. |  Patchy light rain | 30° /16° | 2 mm | 11 | |
| 24 Jan. | Patchy rain possible | 31° /17° | 0.1 mm | 11 | |
| 25 Jan. | Patchy rain possible | 31° /18° | 0.7 mm | 12 | |
| 26 Jan. | Patchy rain possible | 32° /17° | 3.6 mm | 12 | |
| 27 Jan. | Sunny | 32° /18° | 0.5 mm | 12 | |
| 28 Jan. | Patchy rain possible | 30° /16° | 0 mm | 10 | |
| 29 Jan. |  Moderate rain | 31° /16° | 17 mm | 2.7 | |
| 30 Jan. | Moderate rain | 29° /16° | 8.9 mm | 2.6 | |
| 31 Jan. | Moderate rain | 29° /15° | 10.5 mm | 2.9 | |
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Important Notice
Our weather forecast for Johannesburg South in January 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 January - FAQ
What are the expected maximum and minimum temperatures in Johannesburg South during January?
During January, expect a variety of temperatures with highs around 28° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Johannesburg South during January?
Significant rainfall exceeding 166.7 mm is expected in Johannesburg South during January, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Johannesburg South during January?
The average wind speed in Johannesburg South during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Johannesburg South
Explore the daily rainfall trends and prepare for Johannesburg Souths January weather 💧
Typically, Johannesburg South has 22 rainy days in January with a total of 166.7 mm of rainfall.
UV exposure in Johannesburg South during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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