Mount Maunganui - surf spot statistics

Best Surf Season (May - August)

Winter delivers the most consistent and surfable conditions at Mount Maunganui. The Tasman Sea and Southern Ocean fire up with a parade of deep low-pressure systems, generating a steady stream of mid-period swell from the NE quadrant. Ideal offshore winds from the SW through W quadrant blow over 48% of the time, grooming the waves into clean, rippable lines. Average wave heights sit around 1.3m – solid fun-size to head-high – and though periods dip slightly to 8-9 seconds, the combo of reliable swell and favorable wind makes this the go-to window.

Fair Surf Season (March - April & September - November)

During the transitional months, the balance shifts. Swell directions remain favorable from NE to ENE, but the wind becomes a coin flip. The percentage of offshore wind drops to 40-44%, with more frequent onshore NE breezes mixing in. Swell heights average 1.1-1.2m and periods are moderate (7-9s). You'll find plenty of fun sessions, but you need to pick your windows – early mornings often score the cleanest conditions before the seabreeze kicks in.

Low Surf Season (December - February)

Summer brings the highest percentage of onshore NE winds – the same direction as the dominant swell. This creates a classic windswell scenario: waves are often bumped out, choppy, and less user-friendly. Ideal wind drops to 36-39%, and although the swell direction is perfect (NE-ENE), the lack of quality wind limits good surf. Wave heights average 1.1-1.2m with longer periods near 9 seconds – the potential is there, but you've got to chase the rare day when a SW wind change or a tropical low aligns.

May: Winter's Foundation

May is when winter really sets in and the surf becomes more reliable. Swell direction remains favorable, with NE quadrant supplying 33% and ENE 17%, but now a bigger chunk comes from N and NNW (12%) – these are often shorter-period windswells from passing fronts. Average height holds at 1.2m, while the average period drops to 8.2s, indicating more locally generated swell. The good news: offshore wind spikes to 48%, with WSW and W winds dominating (30% combined). These winds are strong enough to hold the face open but not overly gusty. Expect most days to have solid waist-to-shoulder-high waves with occasional head-high sets. Early mornings often feature glassy conditions as the offshore wind is light. The consistency and quality make May a prime month for locals.