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Weather in City of Cape Town for September 2025

Your guide to City of Cape Town weather in September - trends and predictions
  • In general, the average temperature in City of Cape Town at the beginning of September is 16.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 18.3 °C by the end of September.

  • The climate of City of Cape Town in September is notably wet, with an average of 15 rainy days.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
15
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/10°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
70 %
Avg humidity

City of Cape Town in September average weather

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Temperatures trend during September in City of Cape Town

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. Patchy rain possible
Patchy rain possible
16° /9° 0.1 mm 4
2 Sept. Light rain shower
Light rain shower
21° /10° 4.3 mm 6
3 Sept. Patchy rain possible
Patchy rain possible
18° /10° 1.8 mm 5
4 Sept. Light rain shower
Light rain shower
16° /9° 2.7 mm 4
5 Sept. Light rain shower
Light rain shower
14° /8° 12.3 mm 4
6 Sept. Overcast
Overcast
15° /8° 0 mm 4
7 Sept. Sunny
Sunny
17° /8° 0 mm 6
8 Sept. Mist
Mist
17° /10° 0.2 mm 4
9 Sept. Partly cloudy
Partly cloudy
19° /9° 0.2 mm 6
10 Sept. Light rain shower
Light rain shower
17° /8° 11.1 mm 5
11 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
17° /7° 9.4 mm 5
12 Sept. Cloudy
Cloudy
17° /8° 0 mm 5
13 Sept. Sunny
Sunny
19° /8° 0 mm 6
14 Sept. Overcast
Overcast
17° /10° 0 mm 5
15 Sept. Overcast
Overcast
16° /10° 0.1 mm 4
16 Sept. Patchy rain possible
Patchy rain possible
15° /10° 0.8 mm 5
17 Sept. Partly cloudy
Partly cloudy
16° /9° 0 mm 6
18 Sept. Partly cloudy
Partly cloudy
16° /9° 1.4 mm 5
19 Sept. Patchy rain possible
Patchy rain possible
15° /10° 1.3 mm 4
20 Sept. Patchy rain possible
Patchy rain possible
18° /10° 0.1 mm 5
21 Sept. Light drizzle
Light drizzle
18° /9° 1.9 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
21° /10° 0.1 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
21° /12° 0.2 mm 6
24 Sept. Light rain shower
Light rain shower
18° /12° 22 mm 5
25 Sept. Light rain shower
Light rain shower
17° /12° 25.7 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
19° /11° 0.3 mm 5
27 Sept. Sunny
Sunny
20° /11° 0 mm 6
28 Sept. Sunny
Sunny
21° /11° 4.4 mm 6
29 Sept. Overcast
Overcast
18° /11° 3.3 mm 5
30 Sept. Light rain shower
Light rain shower
15° /10° 8.9 mm 4
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Important Notice
Our weather forecast for City of Cape Town 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 City of Cape Town forecast closer to your planned date for the most up-to-date weather information.

City of Cape Town in September - FAQ

What are the expected maximum and minimum temperatures in City of Cape Town during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in City of Cape Town during September?
Significant rainfall exceeding 195.1 mm is expected in City of Cape Town during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in City of Cape Town during September?
The average wind speed in City of Cape Town during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
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Location coordinates Where is City of Cape Town?

Get accurate weather forecasts for City of Cape Town, located at latitude -33.926 and longitude 18.423. Stay updated with localized weather information tailored for City of Cape Town.

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