Coffee Bay - surf spot statistics

Best Surf Season (May - August)

As the Southern Hemisphere winter takes hold, the breathing of the planet shifts and the Indian Ocean begins to pulse with purpose. For Coffee Bay, this is prime time. The combination of long-period groundswells from the deep Southern Ocean and the increased frequency of offshore westerly winds creates the most consistent and high-quality surf of the year. Average wave heights sit in the 2.0-2.3m range, with periods stretching beyond 11 seconds — that's powerful, long-period energy that wraps beautifully around the headlands. The wind is ideal a solid 31-46% of the time, with clean westerly and northwesterly flows grooming the lines. This is when Coffee Bay earns its reputation as a world-class wave. Expect pumping, heavy sets and plenty of rippable walls.

Fair Surf Season (April & September)

The shoulder months bring a mix of everything. In April, the swell is still robust at 2.1m average and periods are long (10.7s), but the wind starts to swing more onshore from the northeast. Ideal wind sits at 26%, which means you need to pick your windows. September sees the transition back to spring: swell holds at 2.2m and periods remain decent at 10.6s, but the offshore breeze consistency drops to 22%. During these months, the magic often comes in short but sweet bursts when a high-pressure system stalls over the interior, delivering glassy mornings and groomed, punchy surf.

Low Surf Season (October - March)

Summer brings the heat, and with it, the trade winds dominate. From October through March, the prevailing wind is from the northeast and east — directly onshore at Coffee Bay, ruining the wave quality. Average wave heights are still around 1.9-2.2m, but the periods shorten to 9.6-10.3s, producing more average, punchy and often choppy conditions. Ideal wind plummets to just 13-18%. The swell direction remains favorable (E through SSE), but the constant onshore flow makes it a struggle. That said, if a strong cold front pushes through and swings the wind to the west, you can score some fun to good waves before the trade winds reestablish. For the most part, though, it's a grovel or a waiting game.

December: Summer Solstice, Onshore Norm

December brings the start of summer. Average swell height is 1.9m, period 9.6s — the smallest average of the year. Swell comes mostly from the S (21.2%), SSE (15.4%), and SE (11.4%), with significant ENE (9.8%) and E (10.3%). The wind is dominated by NE (19.4%) and ENE (19.6%), with ideal offshore wind at just 13%. The SW winds (13.7%) and SSW (12.7%) are common but again not the true offshore. The short period and onshore flow produce mostly choppy, low-quality surf. There are occasional days with a weak westerly wind, but they are rare. December is a low season month. The consolation is warm water and a lively beach vibe, but don't expect the pumping waves of winter. If you do get a good day, cherish it — it might be the only one of the month.