Surf forecastStatisticsHistorical report

Smiths Beach seasonal overview

Best Surf Season (March - May)

As the austral autumn sets in, Smiths Beach enters a sweet spot. Average swell heights climb from 1.9m in March to 2.3m in May, while wave periods hover around 12.5-12.9 seconds, delivering powerful, long-period groundswells. The percentage of ideal offshore winds (from S, SSW, SW, WSW) peaks at 29% in April, meaning more sessions with clean, groomed faces. The dominant swell direction remains from the SW/SSW quadrant, which wraps into the northwest-facing beach, producing lefts and rights that link up along the sand. This is the time to score when the Southern Ocean pumps and the wind gods align.

Fair Surf Season (June - October)

Winter brings the biggest swells of the year, with average heights reaching 2.8m in July and periods extending to 13.3 seconds. These are powerful, XL groundswells capable of pushing through the outer banks. However, the trade-off is a drop in wind quality – ideal offshore conditions occur only 17-21% of the time. Frequent synoptic storms firing up the Southern Ocean also drag strong westerly and north-westerly winds across the region, turning the lineup into a battle of gusty onshores. When a high-pressure system stalls to the south, offshore breezes from the S/SSW return and the beach transforms into a heavy, barrelling playground for the experienced crew.

Low Surf Season (November - February)

The summer months see the surf settle down. Average swell heights dip to 1.8-1.9m, with periods around 11.8-12.2 seconds. While this is still fun-sized and rippable, the consistency of quality swell takes a hit as the Southern Ocean storm track retreats. Offshore wind windows shrink to 17-19% of the time, and the dominant wind patterns shift to more southeasterly and easterly directions, which are side-offshore at best. For those willing to hunt for groomed highlights, early mornings with a light southerly breeze can produce clean, waist-to-head-high waves on the sets. Still, this is the season for a grovel board or a longboard cruise.

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Conditions at Smiths Beach in September

September: Spring Shift Brings More Wind Windows

September averages 2.6m of swell with a long period of 13.2 seconds, still pumping from winter. The dominant swell direction shifts back toward SW (28.4%) and WSW (15.9%), with fewer northwesterly components. Ideal offshore wind conditions improve to 21%. Wind patterns become more balanced: strong westerlies (W 10.7%, WSW 11.8%) mix with increasing SE to SSE flows (5.8% to 6.9%) and offshore SSW/SW winds (8.3% to 9.8%). This means more frequent clean sessions as spring transitions – mornings with a light southerly wind can groom the powerful groundswell into beautiful, long walls. A versatile time for intermediate to advanced surfers.

Average Spot conditions at Smiths Beach 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 Smiths Beach 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 Smiths Beach for your next trip in September.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Smiths Beach 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 Smiths Beach.

Swell with good wind

Swell with good wind by size