Kapu Beach - surf spot statistics

Best Surf Season (October - March)

The post-monsoon and winter months deliver the most consistent surf at Kapu Beach, thanks to a shift in the regional pressure gradient that funnels cool, dry continental air over the Arabian Sea. Offshore winds blow from the NE to ESE quadrants between 43% and 58% of the time, grooming the most frequently occurring swell from the WSW, W, and WNW. Wave heights average 0.7–0.9m, with periods climbing to 10–11 seconds – offering clean, punchy, rideable lines perfect for groveling and small-wave performance. Occasional pulses of longer-period groundswell from distant mid-latitude storms can push into the 1–1.5m fun range, especially in October and November, when the tropical cyclone season also adds energy. Light winds and sunny skies often accompany these swells, making it the prime window for Kapu.

Fair Surf Season (April - May & September)

As the monsoon trough begins to flex in April, the percentage of offshore wind drops to 26% and the swell mix becomes dominated by S through WSW directions. Average wave heights rise to 0.9–1.1m, with longer periods (10–10.8s) indicating more distant swell sources, but the window of clean conditions narrows. Morning sessions often reap the benefit of light E to ESE breezes before the sea breeze kicks in from the W and WSW. September sees the southwest monsoon retreat, increasing offshore wind frequency to 24% and offering a mix of powerful WSW and W swell from the tail end of the Indian Ocean storm track. These transitional months can reward patient surfers with overlooked quality.

Low Surf Season (June - August)

The southwest monsoon grips the Indian west coast from June through August, bringing relentless onshore winds from the SW, WSW, and W that blow 89–95% of the time. While average swell heights surge dramatically to 1.9–2.3m with periods around 10 seconds, the wave quality is heavily compromised. Most of the energy arrives as powerful, short-period windswell generated directly over the Arabian Sea, creating choppy, lumpy, and often unsurfable conditions. The rare window of calm occurs during brief breaks in the monsoon flow, but overall, this is a time to leave Kapu to the offshore storms and explore other coastlines.

June: Monsoon Fury

June is the heart of the southwest monsoon, and Kapu Beach feels the full force. Offshore wind frequency collapses to 11%, with the lightest offshores barely reaching 10 kph from the N or NE. Swell becomes a conveyor belt of WSW (30%) and W (38%) energy, the latter sending over 36% of its waves into the 2–2.5m range and a notable 1.4% above 2.5m – in the pumping to massive category. The average is 2.1m with a 10.1-second period, but the waves are largely wind-driven and unruly. Onshore winds dominate: SW (17%), WSW (22%), and W (17%) blow consistently at 10–30 kph, creating challenging, blown-out conditions. Only the most dedicated tow-surfers or sheltered breaks offer any reprieve.