Climate averages 1991–2020
Piet Retief weather
in September.
A warm, fairly dry month: the 6th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Piet Retief: daytime highs average 23.5°C and nights cool to about 10.1°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 38 mm of rain on roughly 7 days, which makes September a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average September day.
The nearest other city in this atlas is Manzini (80 km away). In September its highs average 25.2°C, 1.8°C warmer than Piet Retief, with 36 mm of rain.
Among the 95 cities listed in South Africa, Piet Retief ranks joint 68th of 95 for the warmest September highs and joint 73rd of 95 for the driest September (rainfall, lowest first). The mean September high of those 95 cities is 24.3°C; Piet Retief is 0.8°C cooler than that mean.
From September to October, average highs fall by 0.2°C to 23.3°C, and monthly rainfall rises from 38 mm to 96 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Piet Retief climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.8°C15.5°C | 15.5°C | 144 | 18.2 | 13.614 h |
| February | 24.8°C15.6°C | 15.6°C | 117 | 14.0 | 13.013 h |
| March | 23.8°C14.3°C | 14.3°C | 103 | 13.5 | 12.312 h |
| April | 21.8°C11.7°C | 11.7°C | 48 | 7.7 | 11.511 h |
| May | 20.2°C8.5°C | 8.5°C | 18 | 3.3 | 10.811 h |
| June | 18.2°C5.8°C | 5.8°C | 11 | 2.2 | 10.510 h |
| July | 18.3°C5.3°C | 5.3°C | 12 | 2.0 | 10.611 h |
| August | 20.9°C7.5°C | 7.5°C | 21 | 3.6 | 11.211 h |
| September, selected | 23.5°C10.1°C | 10.1°C | 38 | 7.0 | 11.912 h |
| October | 23.3°C11.6°C | 11.6°C | 96 | 13.3 | 12.713 h |
| November | 24.0°C13.2°C | 13.2°C | 131 | 16.9 | 13.413 h |
| December | 24.9°C14.8°C | 14.8°C | 155 | 19.4 | 13.814 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Manzini in SeptemberEswatini · 80 kmHigh 25.2°C · Low 12.5°C · 36 mm rain
- Mbabane in SeptemberEswatini · 83 kmHigh 23.1°C · Low 11.0°C · 57 mm rain
- Vryheid in SeptemberSouth Africa · 85 kmHigh 24.2°C · Low 10.1°C · 39 mm rain
- Ermelo in SeptemberSouth Africa · 98 kmHigh 23.2°C · Low 8.8°C · 26 mm rain
- Newcastle, South Africa in SeptemberSouth Africa · 121 kmHigh 24.7°C · Low 9.7°C · 40 mm rain
- Dundee, South Africa in SeptemberSouth Africa · 141 kmHigh 24.8°C · Low 10.4°C · 35 mm rain
- Bethal in SeptemberSouth Africa · 147 kmHigh 23.9°C · Low 8.9°C · 23 mm rain
- Standerton in SeptemberSouth Africa · 156 kmHigh 24.4°C · Low 8.9°C · 23 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Piet Retief) is explained once on the Piet Retief year overview and on the Sources, method and limits page.