Monthly weather forecast in Johannesburg
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
| 3 December, Sunday. day, 26°; night, 17°; rain | 4 December, Monday. day, 25°; night, 18°; clear | 5 December, Tuesday. day, 25°; night, 16°; clear | 6 December, Wednesday. day, 25°; night, 16°; partly cloudy | 7 December, Thursday. day, 24°; night, 17°; clear | 8 December, Friday. day, 24°; night, 16°; partly cloudy | 9 December, Saturday. day, 31°; night, 15°; mostly clear |
| 10 December, Sunday. day, 16°; night, 14°; heavy rain | 11 December, Monday. day, 18°; night, 13°; rain | 12 December, Tuesday. day, 24°; night, 15°; partly cloudy | 13 December, Wednesday. day, 24°; night, 13°; partly cloudy | 14 December, Thursday. day, 24°; night, 15°; partly cloudy | 15 December, Friday. day, 25°; night, 17°; partly cloudy | 16 December, Saturday. day, 24°; night, 16°; partly cloudy |
| 17 December, Sunday. day, 23°; night, 15°; partly cloudy | 18 December, Monday. day, 25°; night, 17°; partly cloudy | 19 December, Tuesday. day, 26°; night, 15°; partly cloudy | 20 December, Wednesday. day, 24°; night, 16°; partly cloudy | 21 December, Thursday. day, 25°; night, 18°; partly cloudy | 22 December, Friday. day, 25°; night, 17°; partly cloudy | 23 December, Saturday. day, 23°; night, 18°; partly cloudy |
| 24 December, Sunday. day, 25°; night, 18°; partly cloudy | 25 December, Monday. day, 28°; night, 16°; clear | 26 December, Tuesday. day, 29°; night, 17°; clear | 27 December, Wednesday. day, 31°; night, 20°; clear | 28 December, Thursday. day, 31°; night, 22°; mostly clear | 29 December, Friday. day, 34°; night, 21°; partly cloudy | 30 December, Saturday. day, 25°; night, 20°; partly cloudy |
| 31 December, Sunday. day, 28°; night, 18°; partly cloudy | 1 January, Monday. day, 30°; night, 19°; mostly clear | 2 January, Tuesday. day, 27°; night, 20°; partly cloudy | 3 January, Wednesday. day, 28°; night, 15°; clear | 4 January, Thursday. day, 30°; night, 18°; clear | 5 January, Friday. day, 31°; night, 23°; clear | 6 January, Saturday. day, 32°; night, 23°; partly cloudy |
Average for 30 days
9 sunny days; 2 days with precipitation; 19 cloudy days;
air humidity 56%; 35 millimeters of precipitation (11% of annual average); Wind north-easterly 3.7 Meters per second