Adonis - surf spot statistics

Best Surf Season (March - April & November)

The transition months between the northeast and southwest monsoons deliver the most consistent quality at Adonis. During March and April, the weakening NE trades give way to a more variable wind regime, with offshore flows from the NW quadrant becoming frequent. Swell directions shift firmly into the S-SSW-SW window, firing the reef with clean, long-period groundswell. November sees a similar setup as the SW monsoon retreats, bringing a high percentage of offshore NW winds and powerful SSW-SW swell. These months offer the best balance of groomed faces and punchy wave heights.

Fair Surf Season (February, May, September, October, December)

February and December still see a mix of NE and E wind patterns but benefit from occasional NW offshore breaks and solid S-SSW swell. September and October sit in the heart of the SW monsoon; while swell is plentiful from the south, the prevailing W to WSW onshore flow often chops up the surface. May is a similar story – the SW monsoon is becoming established, bringing decent size but ruining quality with onshore winds a majority of the time. These months require patience to pick the right window.

Low Surf Season (January, June, July, August)

January is locked into the northeast monsoon with dominant NE winds and swell from the E-ENE quadrant – both poor for Adonis. The small, short-period E swell barely reaches the reef, and the NE winds create bumpy, unrideable conditions. During June, July, and August, the southwest monsoon peaks, delivering plenty of S-SSW swell but almost constant onshore W to WSW winds. The wave heights can be fun-sized but the texture is often messy, making it hard to find a clean wall. These months are best left to the brave or the boat-chasing crew.

September: Transitional Lull

September marks the beginning of the transition away from the southwest monsoon. Average swell height drops slightly to 1.3m, but period remains long at 11.5s. Swell is still predominantly S (25.3%), SSW (34.3%), and SW (21.0%) – perfect. Wind patterns start shifting: onshore WSW (20.0%) and W (26.1%) are still strong, but offshore WNW (17.8%) and NW (6.2%) are growing. Ideal wind reaches 45%. The early part of the month can be messy, but as September progresses, more frequent NW wind events clean up the swell, offering some excellent sessions. It's a month of building anticipation towards the better conditions of October-November.