Weather in South Africa for September 2025
So far, September 2025 in South Africa shows a warmer trend than usual by 2.2 °C.
The forecast for the next days in South Africa predicts temperatures to be around 18 °C, close to the historical average.
In general, the average temperature in South Africa at the beginning of September is 17.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 19.4 °C by the end of September.
The climate of South Africa 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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South Africa Weather September
What’s the Weather Like in South Africa This September?
Temperatures trend during September in South Africa
September weather in South Africa day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Overcast | 18° /9° | 0.1 mm | 5 | |
2 Sept. | Sunny | 20° /10° | 1.7 mm | 6 | |
3 Sept. | Patchy rain possible | 17° /10° | 1.2 mm | 5 | |
4 Sept. | Partly cloudy | 17° /9° | 3.1 mm | 5 | |
5 Sept. | Patchy rain possible | 15° /10° | 6.1 mm | 4 | |
6 Sept. | Patchy rain possible | 16° /9° | 0 mm | 5 | |
7 Sept. | Sunny | 18° /8° | 0 mm | 6 | |
8 Sept. | Partly cloudy | 19° /9° | 0.1 mm | 5 | |
9 Sept. | Sunny | 22° /10° | 0.1 mm | 6 | |
10 Sept. | Sunny | 19° /10° | 4.4 mm | 6 | |
11 Sept. | Sunny | 18° /9° | 4.1 mm | 5 | |
12 Sept. | Sunny | 17° /9° | 0.4 mm | 5 | |
13 Sept. | Sunny | 19° /9° | 0 mm | 6 | |
14 Sept. | Patchy rain possible | 19° /10° | 0 mm | 5 | |
15 Sept. | Patchy rain possible | 16° /12° | 2.7 mm | 1.4 | |
16 Sept. | Patchy rain possible | 16° /12° | 2.6 mm | 1.3 | |
17 Sept. | Patchy rain possible | 15° /12° | 0.2 mm | 1.5 | |
18 Sept. | Sunny | 16° /11° | 0.1 mm | 1.9 | |
19 Sept. | Partly cloudy | 19° /12° | 0 mm | 5 | |
20 Sept. | Overcast | 19° /14° | 0 mm | 5 | |
21 Sept. | Patchy rain possible | 19° /13° | 0.2 mm | 5 | |
22 Sept. | Patchy rain possible | 17° /13° | 3.7 mm | 4 | |
23 Sept. | Sunny | 17° /13° | 0 mm | 5 | |
24 Sept. | Sunny | 18° /13° | 0 mm | 6 | |
25 Sept. | Patchy rain possible | 19° /15° | 0.1 mm | 5 | |
26 Sept. | Sunny | 21° /14° | 0 mm | 6 | |
27 Sept. | Sunny | 21° /15° | 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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Guide for South Africa in September
In September, South Africa experiences a transition from winter to spring, resulting in varied weather conditions across the country.
At the beginning of the month, the Western Cape, including Cape Town, can still have cool and wet conditions, with temperatures averaging around 15° and occasional rain showers.
In contrast, the northeastern regions, such as Kruger National Park, tend to be drier and warmer, with temperatures around 22° and plenty of sunshine.
As the month progresses, the weather in South Africa generally becomes milder and more pleasant. By the end of September, the Western Cape sees an increase in temperatures to around 18°, with fewer rainy days and more sunny spells.
In the northeastern regions, the temperatures may rise to around 25°, creating ideal conditions for wildlife viewing and outdoor activities.
Overall, September is a great time to visit South Africa, as the country begins to emerge from the winter chill, and the landscapes come alive with blooming flowers and lush vegetation.
Whether you're exploring the vibrant cities, embarking on a safari, or enjoying the stunning coastal scenery, South Africa offers diverse and captivating experiences during this time of year.
South Africa in September - FAQ
South Africa water temperatures in September
The average water temperature of the Atlantic Ocean near South Africa in September is 12.6 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in South Africa in September?
- The average water temperature in South Africa in September is 12.6 °C.
- Can you swim in South Africa in September?
- Cold enough that you lose heat fast. A full 4–5 mm wetsuit (plus hood/gloves for comfort) is advisable for anything beyond a brief plunge.
September rainfall patterns in South Africa
UV exposure in South Africa during September
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Get accurate weather forecasts for South Africa, located at latitude -33.926 and longitude 18.423. Stay updated with localized weather information tailored for South Africa.