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
| 03 April 2026 Fri 26.1 ° C ( 79°F )  Sunny |
Feels Like : 25.3 ° C / 77.6°F Humidity : % 37 Pressure : 1025 mb Wind Speed : 5.4 kmph / 3.4 miles from ESE 
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 |
|---|---|---|---|---|---|---|---|
| 03 April 2026 Fri | Sunny |
14.5 ° C | 26.5 ° C | 20.5 ° C | % 49 | 10.8 km/h | 0% |
| 04 April 2026 Sat | Sunny |
15.8 ° C | 28.7 ° C | 22.2 ° C | % 40 | 11.9 km/h | 0% |
| 05 April 2026 Sun | Sunny |
18.6 ° C | 28.8 ° C | 23.6 ° C | % 34 | 14.8 km/h | 0% |
| 06 April 2026 Mon | Sunny |
18.6 ° C | 28.1 ° C | 23.4 ° C | % 34 | 15.5 km/h | 0% |
| 07 April 2026 Tue |  Moderate rain |
13.8 ° C | 21 ° C | 18.3 ° C | % 69 | 19.4 km/h | 84% |
| 08 April 2026 Wed |  Patchy rain nearby |
12.8 ° C | 20.4 ° C | 15.3 ° C | % 72 | 17.3 km/h | 85% |
| 09 April 2026 Thu | Sunny |
14 ° C | 23.8 ° C | 18.7 ° C | % 54 | 11.2 km/h | 0% |
| 10 April 2026 Fri | Sunny |
16 ° C | 26.3 ° C | 20.7 ° C | % 45 | 15.1 km/h | 0% |
| 11 April 2026 Sat |  Partly Cloudy |
17.5 ° C | 25.9 ° C | 21.2 ° C | % 40 | 13.3 km/h | 0% |
| 12 April 2026 Sun | Patchy rain nearby |
17.6 ° C | 25.6 ° C | 21.2 ° C | % 39 | 16.2 km/h | 81% |
| 13 April 2026 Mon | Sunny |
16.8 ° C | 26.8 ° C | 21.5 ° C | % 44 | 16.2 km/h | 0% |
| 14 April 2026 Tue | Patchy rain nearby |
17.7 ° C | 27.2 ° C | 22 ° C | % 41 | 19.1 km/h | 74% |
| 15 April 2026 Wed | Sunny |
17.6 ° C | 24.5 ° C | 20.6 ° C | % 49 | 18.7 km/h | 0% |
| 16 April 2026 Thu | Moderate rain |
15.5 ° C | 23.1 ° C | 18.4 ° C | % 63 | 18.7 km/h | 87% |
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