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Conditions at Cronulla in April
April: Offshore Winds Arrive
April marks the real turning point for surf quality at Cronulla. Average wave period climbs to 9.4 seconds and the ideal wind percentage jumps to 31%. The westerly wind belt begins to push north, and offshore SW, WSW, W and WNW directions combine for close to 19% of all wind observations, while the lighter NE sea breeze becomes less dominant. The swell mix shifts toward SE and SSE, with S waves also contributing over 11% of the total.
Wave heights remain around 5-6ft (1.7m), but these are now longer-period groundswells rather than summer windswell. Morning offshore westerlies groom the east-facing banks, creating clean, lined-up peaks. The main challenge is a developing southerly wind on bigger swell days, which can put a bump on the surface. Air temperatures cool to 19.6°C, water is still pleasant at 22.0°C, and rainfall is relatively low at 2.28 mm/day, making April one of the most reliable months for quality surf.
Average Spot conditions at Cronulla in April
Swell history for April
Wind history for April
Swell quality
Analyze the groundswell consistency at Cronulla during April. 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 Cronulla for your next trip in April.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cronulla for April. 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 Cronulla.