Kommetjie - surf spot statistics

Best Surf Season (May - September)

The austral winter roars to life from May through September, as the South Atlantic storm track shifts northward, generating relentless swell trains that march toward the Cape Peninsula. During this window, Kommetjie sees its highest average swell heights, peaking at 2.9m in July, accompanied by long periods averaging 12.4-12.6s. The percentage of swell arriving from the optimal WSW to NW band reaches its annual peak, with over 13% of all waves coming from these directions. Critically, the frequency of favourable offshore winds from the ESE and SE quadrants also climbs to its maximum, with ideal wind conditions occurring 15-19% of the time. This combination delivers powerful, well-shaped waves that break cleanly along Kommetjie's famous reef and beach breaks. Expect pumping, firing conditions when the synoptic setup aligns, with long period groundswells wrapping into the bay under glassy skies.

Fair Surf Season (April & October)

The shoulder months of April and October offer a mix of lingering winter energy and emerging summer patterns. Swell heights remain solid, averaging 2.4m, and the proportion of optimal swell directions hovers around 9-10%. Wind conditions become more variable, with ideal offshore breezes occurring roughly 11-17% of the time. April features a slightly higher chance of clean conditions, while October sees a transition back toward stronger storm activity. During these months, surfers can expect fun, rippable waves on the better days, but the consistency of quality drops compared to the peak winter season.

Low Surf Season (November - March)

From November through March, the South Atlantic storm activity diminishes as high-pressure systems become more dominant. Average swell heights drop to around 2.3m, and the wave period shortens to 11-11.7s, indicating less powerful, shorter interval swell. The percentage of swell arriving from the favourable WSW-NW window falls to 5-9%, meaning the majority of waves come from less ideal directions such as SW and SSW, which don't penetrate Kommetjie's exposure as effectively. Furthermore, offshore wind conditions become scarce, with ideal winds blowing only 9-13% of the time. The prevailing wind shifts to strong SSE and SE breezes, which, while offshore, often blow too hard or too frequently. However, the low season is not without its moments: when a winter-like low pressure system intrudes, it can deliver a few days of solid, long period swell under lighter winds, offering brief windows of great surf.

December: Height of Summer Lull

December represents the peak of the summer lull, with average swell height of 2.3m and period of 11.3s. Optimal swell drops to 8.7%, with WSW (7.4%) barely noticeable. SW swell (27.0%) is overwhelming. Winds are dominated by SE (23.8%) and SSE (22.6%), often howling at 30-50 km/h. Ideal wind frequency ties the annual low at 9%. The combination of small, south-oriented swell and strong onshore winds makes for tough surf conditions. Only the most sheltered corners of Kommetjie offer rideable waves, and those are often small. Keep an eye on tropical lows in the Indian Ocean that can send unusual swell, but overall, December is a month for swimming, not surfing.