- Home
- ...Africa
South Africa- Coffee Bay
Conditions at Coffee Bay in September
September: Spring Mix - Big Swells, Changing Winds
September is a transition month, but it's still packed with quality. Average swell height is 2.2m (7ft) and average period is 10.6s, so Southern Ocean groundswell is still doing the heavy lifting. The swell window is split between S (16.9%), SSW (14.6%), SSE (11.8%), and a solid spread of E (8.6%), SE (7.7%), and ESE (7%). The 2-2.5m (6.5-8ft) band is nearly as frequent as the 1.5-2m (5-6.5ft) band, so there is ample power for hollow, critical waves. The main challenge is the wind: ideal offshore flow drops to 22% as the NE/ENE trade winds ramp back up (NE 18.5%, ENE 12.1%). You'll need to score the pre-frontal and backing W-NW windows between trade wind pulses. Water temp sits at 20.8°C, air temp around 19.4°C and rain starts to creep upward (1.85 mm/day). It's still very surfable, but a little more luck is required.
Average Spot conditions at Coffee Bay in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at Coffee Bay 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 Coffee Bay for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Coffee Bay 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 Coffee Bay.