- Home
- ...Australia
Australia- Supertubes
Conditions at Supertubes in May
May: Autumn Momentum Builds
May is the real beginning of heavy winter swell. The average height jumps to 7.5ft (2.3m), the average period is 12.9s, and the swell rose starts to show more westerly variety: SW (33.0 percent), WSW (16.5 percent), W (5.0 percent), WNW (2.6 percent), NW (1.4 percent) and NNW (1.1 percent). This broadening of swell direction is good news for Supertubes because the W/WNW/NW component feeds the northwest-facing reef much more directly than pure S/SW swell.
Wind quality is still solid, with ideal offshore conditions at 26 percent. The trade-wind pattern has broken down; the wind rose is much more mixed, though May does bring increasing W/NW onshore flow as fronts start marching across southern Australia. Average air temp drops to 18.2°C (12.9-24.0°C), water temp to 20.4°C, and rainfall rises to 2.70 mm/day. Expect autumn juice with more frequent changeable conditions.
Average Spot conditions at Supertubes in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Supertubes during May. 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 Supertubes for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Supertubes for May. 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 Supertubes.