Sanur - surf spot statistics

Sanur, Indonesia, offers consistent surf conditions year-round, with ground swell dominating the wave energy almost entirely (90–99% of the time). The best months for surfers are from January to March and November to December, when both swell consistency and favorable wind conditions align well. During these months, the mean swell size ranges from 1.4 to 1.5 meters, paired with good wind conditions around 44–54% of the time, making them the most reliable for quality surf sessions. Wind conditions deteriorate sharply from April to October, with unfavorable onshore winds prevailing 82–100% of the time, though the swell size increases slightly (peaking at 2.0 meters in July and August). While the bigger swells during the mid-year months may appeal to experienced surfers, the persistent bad wind conditions make these periods less ideal compared to the early and late-year windows. For the best balance of manageable swell size and cleaner offshore winds, target January, February, and December—when the chances of good surfing conditions are highest.

In August, Sanur offers consistent but challenging surf conditions with an average swell height of 2.0m and a solid period of 14.9s, indicating powerful, well-organized waves. The swell is predominantly from the SSW and SW, with most waves in the 1.5-2.5m range (over 50% of the time), making it ideal for experienced surfers. However, wind conditions are far from ideal—strong ESE and SE winds (20-30kph) dominate, occurring over 50% of the time, which can create choppy or textured surfaces. Offshore winds (needed for clean waves) are virtually absent (0% occurrence). If you’re comfortable with larger, powerful waves and don’t mind battling cross-onshore winds, Sanur can deliver rides with good energy in August, but expect less-than-perfect surface conditions due to the prevailing winds. *Note: Percentage data was analyzed but excluded for brevity.*