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
| 14 July 2026 Tue 15.1 ° C ( 59.2°F )  Sunny |
Feels Like : 15.1 ° C / 59.2°F Humidity : % 59 Pressure : 1029 mb Wind Speed : 9.4 kmph / 5.8 miles from N 
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 |
|---|---|---|---|---|---|---|---|
| 14 July 2026 Tue | Sunny |
10.1 ° C | 18.9 ° C | 14.2 ° C | % 43 | 14.4 km/h | 1% |
| 15 July 2026 Wed |  Smoky haze |
11.6 ° C | 21.2 ° C | 16.1 ° C | % 29 | 19.4 km/h | 0% |
| 16 July 2026 Thu | Sunny |
11.4 ° C | 20.9 ° C | 15.9 ° C | % 20 | 8.3 km/h | 0% |
| 17 July 2026 Fri | Sunny |
11.7 ° C | 21.4 ° C | 16.1 ° C | % 17 | 10.8 km/h | 0% |
| 18 July 2026 Sat | Sunny |
11.8 ° C | 21.6 ° C | 16.4 ° C | % 15 | 6.8 km/h | 1% |
| 19 July 2026 Sun | Sunny |
13.1 ° C | 21.7 ° C | 16.9 ° C | % 16 | 8.6 km/h | 0% |
| 20 July 2026 Mon | Sunny |
13.4 ° C | 22 ° C | 17.2 ° C | % 16 | 7.2 km/h | 0% |
| 21 July 2026 Tue | Sunny |
13 ° C | 21.5 ° C | 16.8 ° C | % 19 | 9 km/h | 0% |
| 22 July 2026 Wed | Sunny |
13.3 ° C | 21.6 ° C | 17.2 ° C | % 25 | 13.7 km/h | 0% |
| 23 July 2026 Thu | Sunny |
14.4 ° C | 22 ° C | 17.7 ° C | % 29 | 17.3 km/h | 1% |
| 24 July 2026 Fri | Sunny |
14.3 ° C | 23.4 ° C | 18.1 ° C | % 30 | 19.1 km/h | 1% |
| 25 July 2026 Sat | Sunny |
11 ° C | 19.9 ° C | 15.4 ° C | % 57 | 16.6 km/h | 3% |
| 26 July 2026 Sun | Sunny |
12.1 ° C | 20.1 ° C | 16.1 ° C | % 49 | 9.4 km/h | 2% |
| 27 July 2026 Mon | Sunny |
11.6 ° C | 20.1 ° C | 15.8 ° C | % 50 | 11.9 km/h | 2% |
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