Climate averages 1991–2020
Grahamstown weather
in August.
A mild, fairly dry month: the 10th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Grahamstown: daytime highs average 20.3°C and nights cool to about 7.6°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 35 mm of rain on roughly 6 days, which makes August a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 54 min on an average August day.
The nearest other city in this atlas is Qonce (93 km away). In August its highs average 21.2°C, 0.9°C warmer than Grahamstown, with 40 mm of rain.
Among the 95 cities listed in South Africa, Grahamstown ranks joint 71st of 95 for the warmest August highs and 79th of 95 for the driest August (rainfall, lowest first). The mean August high of those 95 cities is 21.0°C; Grahamstown is 0.7°C cooler than that mean.
From August to September, average highs rise by 1.6°C to 21.9°C, and monthly rainfall rises from 35 mm to 40 mm.
The annual picture
August 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
Grahamstown climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.8°C16.1°C | 16.1°C | 63 | 9.2 | 14.114 h |
| February | 27.0°C16.5°C | 16.5°C | 64 | 9.9 | 13.313 h |
| March | 25.9°C15.3°C | 15.3°C | 59 | 8.7 | 12.312 h |
| April | 23.6°C12.6°C | 12.6°C | 49 | 8.1 | 11.311 h |
| May | 21.9°C10.1°C | 10.1°C | 22 | 5.0 | 10.410 h |
| June | 19.6°C7.5°C | 7.5°C | 22 | 4.0 | 10.010 h |
| July | 19.6°C6.9°C | 6.9°C | 22 | 3.6 | 10.210 h |
| August, selected | 20.3°C7.6°C | 7.6°C | 35 | 5.9 | 10.911 h |
| September | 21.9°C9.2°C | 9.2°C | 40 | 6.2 | 11.912 h |
| October | 22.5°C11.1°C | 11.1°C | 56 | 8.9 | 12.913 h |
| November | 23.7°C12.6°C | 12.6°C | 60 | 9.2 | 13.814 h |
| December | 25.6°C14.8°C | 14.8°C | 62 | 9.8 | 14.314 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
August in nearby cities
- Qonce in AugustSouth Africa · 93 kmHigh 21.2°C · Low 8.4°C · 40 mm rain
- Bhisho in AugustSouth Africa · 99 kmHigh 20.7°C · Low 7.8°C · 41 mm rain
- Motherwell in AugustSouth Africa · 103 kmHigh 20.3°C · Low 10.1°C · 36 mm rain
- Gqeberha in AugustSouth Africa · 112 kmHigh 18.8°C · Low 12.6°C · 52 mm rain
- Kariega in AugustSouth Africa · 116 kmHigh 20.6°C · Low 9.9°C · 36 mm rain
- Mdantsane in AugustSouth Africa · 123 kmHigh 21.0°C · Low 10.6°C · 38 mm rain
- East London in AugustSouth Africa · 132 kmHigh 21.1°C · Low 13.3°C · 47 mm rain
- Queenstown in AugustSouth Africa · 160 kmHigh 19.9°C · Low 5.0°C · 21 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 Grahamstown) is explained once on the Grahamstown year overview and on the Sources, method and limits page.