Alibaba • Statistics for June

June: Short-Period Trade Swell

June brings the lowest average wave period of the year at 7.9s, with an average swell height of 5ft (1.6m). The data is dominated by NNE swell at 84.1%, making June the most directionally locked month in the annual cycle. For a southwest-facing beach, the persistent NNE pulse is poor in terms of direct exposure; what little energy makes it around the island is essentially short-period, wind-driven swell. The wave quality will often be crumbly and sectiony unless the N/NNE angle refracts onto a particular reef.

Wind-wise, the trades remain relentless, with NNE (62.8%) and NE (23.0%) combining for over 85% of the observations. There is a slight improvement in ideal wind percentage to 16%, as the trades occasionally lighten, but the short 7.9s period means the surf lacks the raw power of winter. Air temp is 22.9°C, water temp 23.4°C, and rainfall at 0.13mm/day is negligible. If you are chasing clean, lined-up waves, June will likely leave you frustrated; the longboard-friendly shoulders are there, but the magic is missing.