Gauteng weather in September
September is one of the best months to visit Gauteng: highs of 26°C (79°F) and about 16 mm (0.6 in) of rain on average. Nights average 8°C (47°F) and cloud cover 29% (NASA POWER, 2001–2025 averages). It is the 4th driest month of the year and the 6th coolest. Compared with August, it is warmer and wetter; October brings highs of 28°C (83°F) and 57 mm (2.2 in) of rain.
Figures are long-term averages for Johannesburg, the largest city in Gauteng. See below for other places.
Is September a good time to visit Gauteng?
best month Weather score 92/100.
Yes. September is one of the best months for weather in Gauteng.
Does it rain a lot in Gauteng in September?
No, it is usually dry: about 16 mm (0.6 in) falls in an average September. It is the 4th driest month of the year.
How warm is Gauteng in September?
Days average 26°C (79°F) and nights 8°C (47°F).
Gauteng weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 28°C (83°F) | 15°C (59°F) | 122 mm | 63% | least pleasant |
| February | 28°C (83°F) | 15°C (58°F) | 82 mm | 60% | least pleasant |
| March | 27°C (80°F) | 13°C (55°F) | 73 mm | 53% | fair |
| April | 24°C (74°F) | 10°C (49°F) | 43 mm | 47% | fair |
| May | 21°C (70°F) | 6°C (42°F) | 16 mm | 30% | best |
| June | 18°C (64°F) | 2°C (36°F) | 7 mm | 26% | best |
| July | 18°C (64°F) | 2°C (35°F) | 3 mm | 22% | best |
| August | 22°C (71°F) | 5°C (40°F) | 7 mm | 24% | best |
| September | 26°C (79°F) | 8°C (47°F) | 16 mm | 29% | best |
| October | 28°C (83°F) | 12°C (53°F) | 57 mm | 47% | fair |
| November | 28°C (83°F) | 13°C (56°F) | 89 mm | 58% | least pleasant |
| December | 28°C (83°F) | 15°C (59°F) | 127 mm | 66% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Gauteng in September
Weather can differ a lot within Gauteng: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Johannesburg | 26°C (79°F) | 8°C (47°F) | 16 mm | best |
| Pretoria | 29°C (85°F) | 11°C (52°F) | 13 mm | best |
| Soweto | 26°C (79°F) | 8°C (47°F) | 14 mm | best |
| Soshanguve | 29°C (85°F) | 11°C (52°F) | 13 mm | best |
| Evaton | 26°C (79°F) | 8°C (47°F) | 14 mm | best |
| Benoni | 26°C (79°F) | 8°C (47°F) | 16 mm | best |
| Thembisa | 26°C (79°F) | 8°C (47°F) | 16 mm | best |
| Vereeniging | 26°C (79°F) | 8°C (47°F) | 14 mm | best |
| Boksburg | 26°C (79°F) | 8°C (47°F) | 16 mm | best |
| Krugersdorp | 27°C (80°F) | 9°C (48°F) | 16 mm | best |
| Diepsloot | 26°C (79°F) | 8°C (47°F) | 16 mm | best |
| Randburg | 26°C (79°F) | 8°C (47°F) | 16 mm | best |