Sumatra Static Swell and Weather Maps

Four times a day, we generate maps of more than a dozen types. The following five are especially relevant for surfers. Click to zoom and see all forecast periods:

Looking for more info? Here are some more specialized maps for Sumatra:

• Largest Swell Energy
• Secondary Swell Energy
• Wind Wave Energy
• Sea Temperature Anomaly – i.e. where the current reading deviates from the historical average.

In addition, there are maps of general weather in Sumatra:

• Air Temperature
• Precipitation

Alternatively, use our animated surf map of Sumatra where you can toggle all these and more layers. Animated maps also display surf breaks, cities, weather stations and ski resorts' locations!