Surf forecastSpot statisticsHistorical report

Cape Town seasonal overview

Cape Town offers consistent surf year-round, with the best conditions typically found from April to August. During these months, ground swell dominates (90-93% of the time), providing clean, powerful waves with minimal wind interference. The mean swell size increases from 2.5m in April to 3.1m in June and July, making these peak months for experienced surfers seeking larger, more challenging waves. Wind conditions improve slightly in April and May, with good wind days occurring around 28-29% of the time, though bad winds still prevail most days (71-72%). Winter months (June-August) maintain strong swell (3.0-3.1m) but see a slight drop in favorable winds (24% good wind days). The shoulder months of March and September still deliver solid surf (86-87% ground swell, 2.4-2.8m) but with fewer clean wind days. Summer (December-February) brings smaller swells (2.4m) and significantly worse wind conditions, with only 19-21% good wind days, making it less ideal for surfers prioritizing quality. Overall, advanced surfers will find the most reliable waves from autumn through winter, particularly April-July, when larger swells and slightly better wind windows align. However, strong offshore winds are relatively rare year-round, so patience is key when chasing ideal sessions in Cape Town.

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Conditions at Cape Town in September

September in Cape Town delivers solid surf conditions with an average swell height of 2.8m and a strong 12.4s period, ensuring powerful, well-spaced waves. The swell direction is predominantly SW to WSW, contributing to the majority of waves in the 1.5–2.5m+ range (over 25% of the time), making it ideal for experienced surfers. However, wind conditions are less favorable, with only 23% of days offering ideal offshore or light cross-shore winds (typically from the SE to E). The prevailing winds are often onshore (SSE to SW) at moderate to strong speeds (10–30+ kph), which can create choppy conditions, particularly in the afternoons. For the best sessions, aim for early mornings when winds are lighter, or wait for those rarer days with easterly airflow. Overall, expect consistent, sizable surf but be prepared to work around the wind.

Average Spot conditions at Cape Town in September

Swell history for September

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for September

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Cape Town during September. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Cape Town for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Cape Town for September. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Cape Town.

Swell with good wind

Swell with good wind by size