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Conditions at Mangamanu in August
August: Winter Hangs On
August keeps the winter momentum going. Average wave heights are 6ft (1.9m) with a 10.6s period - still powerful. S swells remain at 19.2%, but SSE rises to 14.3% and SE to 10.4%, giving the spot an excellent spread of optimal angles. The wind is ideal 73% of the time, with NW (17.0%) and NNW (13.6%) continuing to dominate. There is plenty of long-period swell to be had, though the very largest days are slightly less frequent than in June/July. Water temperatures are at their annual minimum of 9.9°C (50°F), and air temps are just 8.3°C (47°F). It's cold, raw, and occasionally epic - the quintessential New Zealand winter surf month.
Average Spot conditions at Mangamanu in August
Swell history for August
Wind history for August
Swell quality
Analyze the groundswell consistency at Mangamanu during August. 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 Mangamanu for your next trip in August.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mangamanu for August. 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 Mangamanu.