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
| 10 May 2025 Sat 15.3 ° C ( 59.5°F )  Clear |
Feels Like : 15.3 ° C / 59.5°F Humidity : % 37 Pressure : 1020 mb Wind Speed : 5.8 kmph / 3.6 miles from WNW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Johannesburg-Grand Central Airport, Johannesburg, South Africa
| Date | |
|---|---|
| 11 May 2025 Sun | |
| Weather forecast | Sunny |
| Low temperature | 13.6 ° C |
| High temperature | 20.8 ° C |
| Average Temperature | 16.8 ° C |
| Humidity | % 31 |
| Wind | 17.3 km/h |
| Chance of rain | 0% |
| 12 May 2025 Mon | |
| Weather forecast | Sunny |
| Low temperature | 10.8 ° C |
| High temperature | 19.2 ° C |
| Average Temperature | 15.1 ° C |
| Humidity | % 41 |
| Wind | 15.5 km/h |
| Chance of rain | 0% |
| 13 May 2025 Tue | |
| Weather forecast | Sunny |
| Low temperature | 11.4 ° C |
| High temperature | 20.3 ° C |
| Average Temperature | 16 ° C |
| Humidity | % 51 |
| Wind | 7.9 km/h |
| Chance of rain | 0% |
| 14 May 2025 Wed | |
| Weather forecast | Sunny |
| Low temperature | 12.3 ° C |
| High temperature | 21 ° C |
| Average Temperature | 16.5 ° C |
| Humidity | % 49 |
| Wind | 6.8 km/h |
| Chance of rain | 0% |
| 15 May 2025 Thu | |
| Weather forecast | Sunny |
| Low temperature | 13 ° C |
| High temperature | 19.7 ° C |
| Average Temperature | 15.7 ° C |
| Humidity | % 50 |
| Wind | 6.1 km/h |
| Chance of rain | 0% |
| 16 May 2025 Fri | |
| Weather forecast | Sunny |
| Low temperature | 13.4 ° C |
| High temperature | 20.8 ° C |
| Average Temperature | 16.8 ° C |
| Humidity | % 44 |
| Wind | 8.3 km/h |
| Chance of rain | 0% |
| 17 May 2025 Sat | |
| Weather forecast | Sunny |
| Low temperature | 13.8 ° C |
| High temperature | 20.7 ° C |
| Average Temperature | 16.8 ° C |
| Humidity | % 38 |
| Wind | 11.5 km/h |
| Chance of rain | 0% |
| 18 May 2025 Sun | |
| Weather forecast | Sunny |
| Low temperature | 14 ° C |
| High temperature | 22.3 ° C |
| Average Temperature | 17.9 ° C |
| Humidity | % 35 |
| Wind | 9 km/h |
| Chance of rain | 0% |
| 19 May 2025 Mon | |
| Weather forecast | Sunny |
| Low temperature | 15.7 ° C |
| High temperature | 22.7 ° C |
| Average Temperature | 18.9 ° C |
| Humidity | % 37 |
| Wind | 7.6 km/h |
| Chance of rain | 0% |
| 20 May 2025 Tue | |
| Weather forecast |  Patchy rain nearby |
| Low temperature | 14.6 ° C |
| High temperature | 20.7 ° C |
| Average Temperature | 17.1 ° C |
| Humidity | % 52 |
| Wind | 17.3 km/h |
| Chance of rain | 83% |
| 21 May 2025 Wed | |
| Weather forecast |  Moderate rain |
| Low temperature | 11.7 ° C |
| High temperature | 13.4 ° C |
| Average Temperature | 12.6 ° C |
| Humidity | % 85 |
| Wind | 12.2 km/h |
| Chance of rain | 87% |
| 22 May 2025 Thu | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 10.9 ° C |
| High temperature | 18.8 ° C |
| Average Temperature | 14.6 ° C |
| Humidity | % 64 |
| Wind | 9.7 km/h |
| Chance of rain | 83% |
| 23 May 2025 Fri | |
| Weather forecast | Sunny |
| Low temperature | 11.9 ° C |
| High temperature | 19.3 ° C |
| Average Temperature | 15.6 ° C |
| Humidity | % 49 |
| Wind | 10.4 km/h |
| Chance of rain | 0% |
| 24 May 2025 Sat | |
| Weather forecast | Sunny |
| Low temperature | 14.6 ° C |
| High temperature | 20.6 ° C |
| Average Temperature | 17.3 ° C |
| Humidity | % 46 |
| Wind | 6.8 km/h |
| Chance of rain | 0% |
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 11 May 2025 Sun | Sunny |
13.6 ° C | 20.8 ° C | 16.8 ° C | % 31 | 17.3 km/h | 0% |
| 12 May 2025 Mon | Sunny |
10.8 ° C | 19.2 ° C | 15.1 ° C | % 41 | 15.5 km/h | 0% |
| 13 May 2025 Tue | Sunny |
11.4 ° C | 20.3 ° C | 16 ° C | % 51 | 7.9 km/h | 0% |
| 14 May 2025 Wed | Sunny |
12.3 ° C | 21 ° C | 16.5 ° C | % 49 | 6.8 km/h | 0% |
| 15 May 2025 Thu | Sunny |
13 ° C | 19.7 ° C | 15.7 ° C | % 50 | 6.1 km/h | 0% |
| 16 May 2025 Fri | Sunny |
13.4 ° C | 20.8 ° C | 16.8 ° C | % 44 | 8.3 km/h | 0% |
| 17 May 2025 Sat | Sunny |
13.8 ° C | 20.7 ° C | 16.8 ° C | % 38 | 11.5 km/h | 0% |
| 18 May 2025 Sun | Sunny |
14 ° C | 22.3 ° C | 17.9 ° C | % 35 | 9 km/h | 0% |
| 19 May 2025 Mon | Sunny |
15.7 ° C | 22.7 ° C | 18.9 ° C | % 37 | 7.6 km/h | 0% |
| 20 May 2025 Tue | Patchy rain nearby |
14.6 ° C | 20.7 ° C | 17.1 ° C | % 52 | 17.3 km/h | 83% |
| 21 May 2025 Wed | Moderate rain |
11.7 ° C | 13.4 ° C | 12.6 ° C | % 85 | 12.2 km/h | 87% |
| 22 May 2025 Thu | Patchy rain nearby |
10.9 ° C | 18.8 ° C | 14.6 ° C | % 64 | 9.7 km/h | 83% |
| 23 May 2025 Fri | Sunny |
11.9 ° C | 19.3 ° C | 15.6 ° C | % 49 | 10.4 km/h | 0% |
| 24 May 2025 Sat | Sunny |
14.6 ° C | 20.6 ° C | 17.3 ° C | % 46 | 6.8 km/h | 0% |
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