Keramas seasonal overview
Best Surf Season (December - February)
The crown of the year at Keramas is the peak of the northwest monsoon. Ideal wind percentages climb to 49-64%, the swell settles into a persistent SSW/SW window, and the long-period groundswell hits the southeast-facing reef with real power. The broader October-March wet season is traditionally regarded as the productive window, but December, January and February are when the combination of direction, period, and offshore flow aligns most often.
Fair Surf Season (March & November)
March and November bracket the peak and offer the next best odds. March still sees the monsoon blowing 40% ideal, with a slightly smaller but still long-period SSW/SW swell. November is the return season: winds are switching back to the W/NW quadrant, and the first quality windows of the wet season appear. For flexible surfers, these are high-reward months.
Low Surf Season (April - October)
The long middle of the year is dominated by the SE trade winds. Swell energy is actually highest from May through October, with 3-4ft (1.0-1.1m) averages at 14s+, but the ESE/SE/SSE flow blows onshore almost uninterrupted; ideal wind drops to 1-5% in June-October. Keramas is not flat, but it is frequently blown out. The rare clean days during transitions or anomalous high-pressure setups are the ones worth chasing.