Western Cape (Cape Town)
September
Weather in Western Cape for September 2025
Your guide to Western Cape weather in September - trends and predictions
In general, the average temperature in Western Cape at the beginning of September is 16.7 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 19.1 °C by the end of September.
The climate of Western Cape in September is notably wet, with an average of 12 rainy days, and a total of 63.5 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
12
Rainy days
0
Snow days
18°/10°
Temperatures
21 km/h
Avg max wind
68 %
Avg humidity
Western Cape in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2  19° | 3  17° | 4  16° | 5 14° | 6 16° | 7 18° |
| 8 18° | 9 21° | 10 18° | 11 17° | 12  17° | 13 19° | 14 19° |
| 15 17° | 16 17° | 17 18° | 18 18° | 19 16° | 20 18° | 21 20° |
| 22 21° | 23 19° | 24 19° | 25 19° | 26 19° | 27 20° | 28 20° |
| 29 19° | 30 18° |
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Temperatures trend during September in Western Cape
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Overcast | 17° /9° | 0.1 mm | 5 | |
| 2 Sept. | Sunny | 19° /9° | 2.2 mm | 6 | |
| 3 Sept. | Patchy rain possible | 17° /10° | 1.5 mm | 5 | |
| 4 Sept. | Partly cloudy | 16° /9° | 3.9 mm | 5 | |
| 5 Sept. | Patchy rain possible | 14° /9° | 7.6 mm | 4 | |
| 6 Sept. | Patchy rain possible | 16° /8° | 0 mm | 5 | |
| 7 Sept. | Sunny | 18° /8° | 0 mm | 6 | |
| 8 Sept. | Partly cloudy | 18° /9° | 0.1 mm | 5 | |
| 9 Sept. | Sunny | 21° /9° | 0.1 mm | 6 | |
| 10 Sept. | Sunny | 18° /9° | 5.6 mm | 6 | |
| 11 Sept. | Sunny | 17° /9° | 5.1 mm | 5 | |
| 12 Sept. | Moderate rain at times | 17° /9° | 0.6 mm | 5 | |
| 13 Sept. | Sunny | 19° /9° | 0 mm | 6 | |
| 14 Sept. | Patchy rain possible | 19° /10° | 0 mm | 5 | |
| 15 Sept. | Overcast | 17° /11° | 0 mm | 5 | |
| 16 Sept. | Patchy rain possible | 17° /10° | 0.4 mm | 5 | |
| 17 Sept. | Partly cloudy | 18° /10° | 0 mm | 6 | |
| 18 Sept. | Overcast | 18° /9° | 0.9 mm | 5 | |
| 19 Sept. | Patchy rain possible | 16° /10° | 0.7 mm | 5 | |
| 20 Sept. | Sunny | 18° /10° | 0.5 mm | 6 | |
| 21 Sept. | Sunny | 20° /9° | 1 mm | 6 | |
| 22 Sept. | Partly cloudy | 21° /10° | 0.6 mm | 6 | |
| 23 Sept. | Partly cloudy | 19° /12° | 0.1 mm | 6 | |
| 24 Sept. | Overcast | 19° /11° | 11 mm | 5 | |
| 25 Sept. | Overcast | 19° /11° | 12.8 mm | 5 | |
| 26 Sept. | Partly cloudy | 19° /11° | 0.3 mm | 6 | |
| 27 Sept. | Sunny | 20° /11° | 0 mm | 6 | |
| 28 Sept. | Partly cloudy | 20° /10° | 2.2 mm | 6 | |
| 29 Sept. | Sunny | 19° /12° | 1.6 mm | 6 | |
| 30 Sept. | Light rain shower | 18° /11° | 4.5 mm | 5 | |
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Important Notice
Our weather forecast for Western Cape in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Western Cape forecast closer to your planned date for the most up-to-date weather information.
Western Cape in September - FAQ
What are the expected maximum and minimum temperatures in Western Cape during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Western Cape during September?
Moderate rainfall is anticipated in Western Cape during September, with a total of 63.5 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Western Cape during September?
The average wind speed in Western Cape during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Western Cape
Explore the daily rainfall trends and prepare for Western Capes September weather 💧
UV exposure in Western Cape during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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