Surf forecastStatisticsHistorical report

Kapu Beach seasonal overview

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.

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Conditions at Kapu Beach in December

December: Consistent Winter Classic

December wraps up the year with excellent consistency. Offshore winds blow 55% of the time, again dominated by ENE (14%) and E (13%) directions. Swell sources broaden: SSW (24%), SW (21%), WSW (14%), W (13%), and WNW (12%) all contribute, with heights almost entirely in the 0.5–1m range. Periods average 10.6 seconds, retaining that long-period quality. The swell is smaller but more varied in direction, often offering the best shape when the trade winds align. Light offshore breezes keep the surface clean through the morning, and the festive season brings reliable surf for all levels. Kapu Beach ends the year on a high note.

Average Spot conditions at Kapu Beach in December

Swell history for December

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for December

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Kapu Beach during December. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Kapu Beach for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Kapu Beach for December. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Kapu Beach.

Swell with good wind

Swell with good wind by size