Surf forecastSpot statisticsHistorical report

Little Wanganui seasonal overview

Little Wanganui on New Zealand’s South Island offers consistent year-round surf, with ground swells dominating (71-84%) and minimal wind swells or flat days. The best months for surfers are generally from May to September, when swell size peaks (2.1-2.3m) and offshore wind conditions improve. June and July stand out with the highest percentage of good winds (35-38%) and reliable swell energy. Winter also sees the most favorable balance of clean conditions and solid waves, though the swell can be powerful and better suited for experienced surfers. Spring (September-November) still delivers solid waves (1.9-2.3m) but with worsening wind conditions, while summer (December-February) brings smaller swells (1.6-1.8m) and fewer clean days (23-33% good winds). The spot rarely has no swell, making it dependable, but autumn and winter provide the optimal mix of size, consistency, and cleaner winds. For surfers seeking quality overhead waves with minimal onshore interference, mid-year is the prime window.

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Conditions at Little Wanganui in May

Little Wanganui in May offers solid surf conditions with an average swell height of 2.1m and a favorable period of 12.8s, indicating powerful, well-spaced waves. The dominant swell directions are WSW and W, with WSW producing the highest frequency of surfable waves—particularly in the 1.5-2.5m range—suggesting consistent, clean energy. The wind is surfable only 32% of the time, with lighter easterly (E, ENE) or variable offshore flows being ideal. However, stronger SW and WSW winds (10-30kph) are common, potentially creating choppy or cross-shore conditions. Overall, May delivers decent swells but requires patience for clean wind windows, best suited for experienced surfers who can handle larger, occasionally unruly conditions. Smaller days (1-1.5m) are rarer but offer more manageable rides.

Average Spot conditions at Little Wanganui in May

Swell history for May

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

Wind history for May

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

Swell quality

Analyze the groundswell consistency at Little Wanganui 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 Little Wanganui for your next trip in May.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Little Wanganui 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 Little Wanganui.

Swell with good wind

Swell with good wind by size