Surf forecastStatisticsHistorical report

Wedge seasonal overview

Best Surf Season (May - August)

The core of the Southern Hemisphere winter delivers the most consistent window for quality surf at The Wedge. During these months, the South Atlantic storm track is fully active, generating long-period groundswells (10-11s on average) that wrap into the East-Northeast-facing beach. Critically, the percentage of offshore wind from the SW-WNW quadrant peaks at over 50% from May through July, often producing clean, groomed faces. While much of the swell arrives from the S and SSE directions, the combination of a powerful, organized swell and light offshore flow creates punchy, rippable waves in the 1-2.5m range. The best days occur when a strong frontal system pushes east of the continent and sets up a classic post-frontal SW wind regime – that is when The Wedge truly fires.

Fair Surf Season (April & September - October)

The shoulder months of April, September, and October see a gradual transition in the synoptic weather patterns. Swell heights remain solid (averaging 1.7-1.8m), and you can still find good quality waves. However, the frequency of clean offshore winds drops to the 27-38% range, and the wind direction becomes more variable. The swell period is still decent (9-10s) but less consistent than mid-winter. These months are a gamble: you may score a few days with light SW winds and a well-aligned ESE swell, but you will also contend with more onshore wind events, especially from NE and ENE. Patience is key, and morning sessions are often best.

Low Surf Season (November - March)

During the late spring and summer months, The Wedge is largely dominated by a persistent high-pressure system over the interior, which drives strong, consistent onshore winds from the NE and ENE quadrants. These are exactly the wind directions that ruin the wave quality, turning any swell into choppy, messy conditions. While the swell still arrives – mainly from the E and ESE (optimal directions) – the constant onshore breeze makes it difficult to find a clean, workable wave. Average wave periods drop to 8.7-9.4s, further reducing the power. Only on rare days when a weak trough allows a brief SW wind shift will you score fun-sized, surfable waves. This is the quietest period for dedicated wave-seekers.

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Conditions at Wedge in December

December: Summer Slog

December is firmly in the summer pattern. Offshore wind frequency hits a yearly low at 26%, and the average swell period is the shortest of the year at 8.7s. Swell height averages 1.6m. The swell distribution is dominated by SSE (20.2%), E (18.6%), SE (16.7%), and S (15.7%). Winds are predominantly from NE (18.8%) and ENE (14.7%), creating mostly messy, choppy conditions. The rare clean day comes when a tropical low or cutoff low swings by and generates a pulse of E swell with SW winds – but these events are few and far between. Most of the month, you are better off checking the buoys early in the morning and hoping for a wind shift that rarely arrives. A time for hardcore locals only.

Average Spot conditions at Wedge in December

Swell history for December

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

Wind history for December

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

Swell quality

Analyze the groundswell consistency at Wedge during December. 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 Wedge for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Wedge for December. 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 Wedge.

Swell with good wind

Swell with good wind by size