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Cimaja is a consistent right-hand break in West Java, offering quality waves within a few hours' drive of Jakarta. The wave breaks over a stable platform of rounded river cobblestones and underlying coral reef, producing predictable, workable walls that peel along the rocky bank. The setting is lush tropical coastline backed by rice paddies and jungle. As the most accessible quality wave near Indonesia's capital, Cimaja has developed a dedicated local surf scene.
South-westerly Indian Ocean groundswells arrive consistently from April through October during the dry season. The wave activates on 3ft swells and handles up to 6-8ft before becoming too powerful for most surfers. North-easterly offshore winds are standard during the dry season, strongest in the mornings. The wet season brings onshore winds but swell still arrives intermittently.
The main take-off zone sits where the cobblestone point forces the swell to steepen. The right peels for 50-100 metres along the rocky bottom. Position yourself at the top of the point beside the most prominent rock formation. The wave walls up predictably, allowing a beat after the take-off before setting your line. The channel alongside the point provides the paddle-out.
The cobblestone and reef bottom is uneven and falls can result in bruising or cuts. On bigger swells, the wave produces thick, powerful lips that demand confident navigation. Sea urchins inhabit the reef sections. Currents strengthen on bigger days. The drive from Jakarta involves narrow, congested roads that are hazardous.
Informal parking is available along the road above the break. The walk to the waterline is short. Basic warungs provide food and drink. Simple accommodation is available in the area. Cimaja is approximately 4 hours' drive from Jakarta via Pelabuhan Ratu.
Cimaja draws Jakarta's surf community on weekends, producing moderate crowds of 15-25 surfers. Weekdays are significantly quieter with mostly local surfers. The atmosphere is friendly and the Javanese surf community is welcoming. The wave's length means there is room for everyone to spread along the point.
The wave changes character with tide. Lower tides produce hollower, faster sections over the shallower reef. Higher tides make the wave fatter and more forgiving. Match your tide choice to your skill level. A standard shortboard works well. The drive from Jakarta is tiring; consider staying overnight in the area to maximise your surf time. Friday afternoon departures beat the Saturday morning traffic rush.
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Based on historical weekly averages
Conditions at Cimaja tend to be best between 07:00 to 10:00 in June.
Average score during this window: 6.3/10
Combining historical conditions with school holiday crowd pressure to find the sweet spot.
How busy each week is based on school holiday overlap from feeder markets.
The timing score combines two signals: historical conditions quality (how good the skiing or surfing typically is in a given week, based on 5 years of weather data) and crowd pressure (how many of this destination's feeder markets have school holidays that week).
Crowd pressure is weighted by each feeder country's share of visitors. If 40% of a resort's visitors come from France and France is on holiday, that contributes 0.40 to the crowd pressure score. Crowds can reduce the timing score by up to 35%, ensuring conditions still matter most.
Scores: 5 = great conditions with low crowds (the sweet spot). 4 = great conditions with moderate crowds, or good conditions with low crowds. 3 = average. 2 = below average conditions or very crowded. 1 = poor conditions or peak holiday chaos.
Last 29 days of logged conditions.
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Create Profile →Current conditions refresh every 3 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.
We compare the 7-day forecast to the last 5 years of marine data for the same week at Cimaja. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical mid-June.
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.
The best week for surf at Cimaja is the week of 30 November (score 3/5) with low crowds.
Decent swell running. Plenty to work with. Reasonable period putting some grunt behind each wave. Light offshore grooming the faces nicely.
Heads up: thunderstorms forecast, and jellyfish: peak season.
Indicators derived from forecast data, not official warnings. Always check local lifeguard or official advice.
Good water clarity: ~13m visibility
Daily scores over the last 12 months at Cimaja
Conditions at Cimaja tend to be best between 07:00 to 10:00 in June.
Average score during this window: 6.3/10
See timing scores, school holiday busyness, and lift pass pricing to find the best time to book.
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