Weather in Hermanus for September 2026
Damaging Waves - See hour by hour.
Until now, September 2026 in Hermanus has been nearly identical to the historical average, with a temperature of 17 °C (showing only a slight deviation of 0 °C).
The forecast for the next days in Hermanus predicts temperatures to be around 18 °C, close to the historical average.
In general, the average temperature in Hermanus at the beginning of September is 16.7 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 17 °C by the end of September.
Hermanus experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 25 mm.
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Hermanus Weather September
Temperatures trend during September in Hermanus
September weather in Hermanus day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 17° /11° | 0 mm | 5 | |
| 2 Sept. |  Sunny | 18° /12° | 0 mm | 5 | |
| 3 Sept. | Partly cloudy | 16° /12° | 1.5 mm | 4 | |
| 4 Sept. |  Patchy rain possible | 16° /12° | 0.1 mm | 4 | |
| 5 Sept. | Patchy rain possible | 16° /11° | 0.5 mm | 4 | |
| 6 Sept. | Sunny | 17° /11° | 0.1 mm | 5 | |
| 7 Sept. | Partly cloudy | 17° /11° | 0 mm | 5 | |
| 8 Sept. |  Patchy light drizzle | 18° /13° | 0.6 mm | 4 | |
| 9 Sept. | Sunny | 17° /12° | 0.1 mm | 5 | |
| 10 Sept. | Sunny | 18° /12° | 0.1 mm | 5 | |
| 11 Sept. | Patchy rain possible | 17° /13° | 0.5 mm | 4 | |
| 12 Sept. | Patchy rain possible | 16° /15° | 11.8 mm | 0.9 | |
| 13 Sept. | Light rain shower | 17° /15° | 7.7 mm | 2.6 | |
| 14 Sept. | Sunny | 19° /16° | 5.5 mm | 5 | |
| 15 Sept. | Patchy rain possible | 17° /15° | 0.8 mm | 6.8 | |
| 16 Sept. | Light rain shower | 15° /12° | 14.6 mm | 4 | |
| 17 Sept. |  Overcast | 16° /12° | 0.1 mm | 5 | |
| 18 Sept. | Sunny | 18° /12° | 0 mm | 6 | |
| 19 Sept. | Sunny | 19° /12° | 0 mm | 6 | |
| 20 Sept. | Sunny | 22° /12° | 0 mm | 7 | |
| 21 Sept. | Sunny | 18° /16° | 0.2 mm | 6 | |
| 22 Sept. | Patchy rain possible | 16° /14° | 8.4 mm | 5 | |
| 23 Sept. | Overcast | 17° /12° | 0 mm | 5 | |
| 24 Sept. | Overcast | 20° /12° | 0 mm | 6 | |
| 25 Sept. | Light rain shower | 15° /10° | 18.8 mm | 4 | |
| 26 Sept. | Patchy rain possible | 17° /11° | 0.2 mm | 6 | |
| 27 Sept. | Patchy rain possible | 17° /12° | 0.1 mm | 5 | |
| 28 Sept. | Light rain shower | 16° /13° | 4.5 mm | 5 | |
| 29 Sept. | Light rain shower | 16° /12° | 3.4 mm | 5 | |
| 30 Sept. | Light rain shower | 18° /11° | 4.7 mm | 5 | |
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Hermanus in September - FAQ
What are the expected maximum and minimum temperatures in Hermanus during September?
How much rainfall should be expected in Hermanus during September?
What are the typical wind conditions in Hermanus during September?
September rainfall patterns in Hermanus
UV exposure in Hermanus during September
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