Johannesburg-Grand Central Airport (GCJ) 15 Day Weather Forecast, Johannesburg South Africa
Current weather conditions and 15 day weather forecast for Johannesburg-Grand Central Airport in Johannesburg, South Africa including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at GCJ
| 05 December 2025 Fri 22.3 ° C ( 72.1°F )  Sunny |
Feels Like : 23.8 ° C / 74.8°F Humidity : % 61 Pressure : 1026 mb Wind Speed : 11.9 kmph / 7.4 miles from NNW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Johannesburg-Grand Central Airport, Johannesburg, South Africa
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 05 December 2025 Fri |  Patchy rain nearby |
14.5 ° C | 27.1 ° C | 20.3 ° C | % 55 | 18 km/h | 86% |
| 06 December 2025 Sat | Patchy rain nearby |
17.7 ° C | 29 ° C | 22.1 ° C | % 47 | 16.9 km/h | 87% |
| 07 December 2025 Sun | Patchy rain nearby |
16.6 ° C | 27.1 ° C | 21.7 ° C | % 54 | 17.3 km/h | 86% |
| 08 December 2025 Mon |  Heavy rain |
14.8 ° C | 16.1 ° C | 15.7 ° C | % 88 | 10.4 km/h | 76% |
| 09 December 2025 Tue | Patchy rain nearby |
14.4 ° C | 26.9 ° C | 20.2 ° C | % 63 | 11.9 km/h | 83% |
| 10 December 2025 Wed | Patchy rain nearby |
15.8 ° C | 26.3 ° C | 19.1 ° C | % 76 | 16.9 km/h | 86% |
| 11 December 2025 Thu | Patchy rain nearby |
14.9 ° C | 22.3 ° C | 18 ° C | % 77 | 17.6 km/h | 88% |
| 12 December 2025 Fri | Patchy rain nearby |
15.1 ° C | 21.2 ° C | 17.7 ° C | % 81 | 24.8 km/h | 88% |
| 13 December 2025 Sat | Patchy rain nearby |
16.4 ° C | 24 ° C | 20.4 ° C | % 71 | 10.1 km/h | 85% |
| 14 December 2025 Sun | Patchy rain nearby |
16.5 ° C | 22 ° C | 18.9 ° C | % 80 | 16.9 km/h | 89% |
| 15 December 2025 Mon | Patchy rain nearby |
15.6 ° C | 24.9 ° C | 20.4 ° C | % 65 | 10.4 km/h | 69% |
| 16 December 2025 Tue | Sunny |
18.8 ° C | 26.8 ° C | 22.9 ° C | % 53 | 15.1 km/h | 0% |
| 17 December 2025 Wed | Patchy rain nearby |
19 ° C | 24.9 ° C | 21 ° C | % 58 | 10.1 km/h | 82% |
| 18 December 2025 Thu | Patchy rain nearby |
15.6 ° C | 22.2 ° C | 18.5 ° C | % 76 | 16.9 km/h | 87% |
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