Weather in Grahamstown for September 2026
Until now, September 2026 in Grahamstown has been nearly identical to the historical average, with a temperature of 18.8 °C (showing only a slight deviation of 0.2 °C).
Expect cooler weather in the next days in Grahamstown with the forecast suggesting a temperature of 16.9 °C, lower than the historical average.
In general, the average temperature in Grahamstown at the beginning of September is 18.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 16.6 °C by the end of September.
Grahamstown in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 44.7 mm.
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Grahamstown Weather September
Temperatures trend during September in Grahamstown
September weather in Grahamstown day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 19° /15° | 1 mm | 5 | |
| 2 Sept. |  Overcast | 19° /15° | 0.1 mm | 4 | |
| 3 Sept. |  Partly cloudy | 21° /16° | 5.5 mm | 5 | |
| 4 Sept. |  Patchy rain possible | 18° /15° | 0.8 mm | 4 | |
| 5 Sept. | Light rain shower | 17° /14° | 2 mm | 4 | |
| 6 Sept. | Patchy rain possible | 17° /15° | 0.3 mm | 4 | |
| 7 Sept. | Patchy rain possible | 18° /15° | 0.3 mm | 5 | |
| 8 Sept. | Light rain shower | 18° /15° | 3.9 mm | 4 | |
| 9 Sept. | Light rain shower | 21° /16° | 1 mm | 5 | |
| 10 Sept. | Sunny | 19° /15° | 0.1 mm | 5 | |
| 11 Sept. | Patchy rain possible | 18° /16° | 1.5 mm | 4 | |
| 12 Sept. | Light rain shower | 19° /17° | 6.7 mm | 4 | |
| 13 Sept. | Sunny | 18° /16° | 6.3 mm | 4 | |
| 14 Sept. | Patchy rain possible | 19° /16° | 1 mm | 4 | |
| 15 Sept. | Sunny | 22° /16° | 0 mm | 7.3 | |
| 16 Sept. | Light rain shower | 19° /8° | 13.7 mm | 1.4 | |
| 17 Sept. | Light rain shower | 8° /6° | 37.9 mm | 5.3 | |
| 18 Sept. | Patchy rain possible | 11° /7° | 11.5 mm | 4 | |
| 19 Sept. | Patchy rain possible | 16° /9° | 4.8 mm | 4 | |
| 20 Sept. | Light rain shower | 15° /13° | 3.5 mm | 5 | |
| 21 Sept. | Light rain shower | 15° /13° | 5.2 mm | 5 | |
| 22 Sept. | Sunny | 24° /13° | 0 mm | 7 | |
| 23 Sept. | Light rain shower | 24° /8° | 7.7 mm | 5 | |
| 24 Sept. | Patchy rain possible | 10° /5° | 1.2 mm | 4 | |
| 25 Sept. | Sunny | 14° /7° | 0 mm | 5 | |
| 26 Sept. | Overcast | 19° /10° | 0 mm | 6 | |
| 27 Sept. | Sunny | 19° /11° | 0 mm | 6 | |
| 28 Sept. | Sunny | 20° /12° | 0 mm | 6 | |
| 29 Sept. | Light rain shower | 16° /14° | 2.7 mm | 5 | |
| 30 Sept. | Light rain shower | 18° /13° | 1 mm | 6 | |
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Grahamstown in September - FAQ
What are the expected maximum and minimum temperatures in Grahamstown during September?
How much rainfall should be expected in Grahamstown during September?
What are the typical wind conditions in Grahamstown during September?
September rainfall patterns in Grahamstown
UV exposure in Grahamstown during September
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