Kapu Beach seasonal overview
Best Surf Season (October - March)
The northeast monsoon is the key player at Kapu Beach, and it turns the offshore wind dial in the surfer's favor. From October through March, the prevailing wind shifts into the east-northeast quadrant, blowing straight off the land and grooming this west-southwest facing stretch of Indian coastline. November and December are the statistical standouts, with ideal wind 56 and 53 percent of the time respectively, while average swell heights hover around 2-3ft (0.7-0.9m) with periods in the 9-11 second range. The surf is not huge, but it is clean, rippable and remarkably consistent. January and February carry that quality forward, with slightly less wind but a touch more W/NW swell. October and March are the transition bookends that can still produce surprisingly good long-period lines. Water temps stay in the 28-29°C range and precipitation is low, making for warm, tropical sessions.
Fair Surf Season (April - May & September)
As the northeast monsoon weakens, the southwest monsoon starts to breathe. April sees longer-period swell - the average period jumps to 10.8s - but the frequency of offshore wind drops to 22 percent and sea breezes become more dominant. May delivers more size, with average swell climbing to 3-4ft (1.1m) and more consistent WSW/SW energy, but ideal wind falls to just 16 percent, so conditions get increasingly bumpy. September sits on the other side of the monsoon in a recovery phase: southwest swell is still powerful, averaging around 4-5ft (1.3m), the winds are slowly backing off, and the 21 percent offshore reading signals that clean windows are starting to reappear.
Low Surf Season (June - August)
Once the southwest monsoon locks in, Kapu transforms into a wild, windblown version of itself. June through August is peak storm-surf season in the Arabian Sea, with average swell heights of 6-8ft (1.9-2.3m) and periods around 10s. But the same SW/W flow that generates the waves also blows straight onshore, and ideal wind plummets to 4-11 percent. The beach becomes a grinding, lumpy, often dangerous shorebreak rather than a clean surf spot. Heavy rain and monsoonal cloud cover are the norm. For the average surfer this is the time to sit out; only the hardcore and well-equipped will find any usable windows between squalls.