Balangan - surf spot statistics

Balangan, Indonesia, is a consistent surf spot with year-round swell, dominated almost entirely by ground swells (92–100% occurrence), making it highly reliable for quality waves. The swell size averages 1.5–2.2m, peaking from June to September with the largest waves (2.0–2.2m), ideal for experienced surfers. Wind conditions play a crucial role—the best months are April, October, and November, where good wind rates reach 60%, 72%, and 70% respectively, offering clean, offshore winds. March and September also provide decent wind conditions (41–51%). The worst winds occur from January to February and June to August, with bad wind rates exceeding 68%, often resulting in onshore chop. For optimal surfing, target the transition months (April, October, November) when solid swell meets favorable winds, or September if bigger waves are preferred. Avoid peak southwest monsoon months (June–August) unless willing to tolerate stronger onshore winds. Overall, Balangan delivers surfable waves year-round, but the best balance of size and clean conditions falls in April and late dry season (September–November).

In September, Balangan offers consistent surf with an average swell height of 2.1m and a solid 14.8s period, ensuring powerful, well-spaced waves ideal for intermediate to advanced surfers. The swell is predominantly SSW and SW, with the majority of waves ranging between 1.5-2.5m, providing quality rides with strong energy. Wind conditions are favorable 51% of the time, primarily light to moderate from the ESE to SE, though stronger onshore winds (20-30kph) do occur occasionally. The spot handles larger swells well, but the best sessions will likely be on days with lighter SE winds, which help groom the waves without overpowering them. Overall, September delivers reliable surf with a mix of size and quality, making it a prime month for experienced surfers.