Surf spot
Forecast conditions and map view for Volcanos in Indonesia, Sumatra Mainland. Open the interactive surf map to inspect wind, waves, and nearby spots.
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| 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | |
| Wave height (m) | 1.3 | 1.2 | 1.3 | 1.1 | 1.3 | 1.4 | 1.5 | 1.6 | 1.7 | 1.8 | 1.9 | 2 | 2 | 2 | 2.1 | 2.1 | 2 | 2 | 1.9 | 1.9 | 1.8 | 1.8 | 1.8 | 1.7 | 1.7 | 1.6 | 1.6 | 1.6 | 1.4 | 1.3 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.6 | 1.6 | 1.6 | 1.6 | 1.5 | 1.5 | 1.4 | 1.4 | 1.3 | 1.2 | 1.2 | 1.1 | 1.1 | 1.1 | 1.1 | 1 | 1 | 1 | 1 |
| Wave direction | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | S | SSW | S | SSW | S | S | S | S | S | S | S | S |
| Wave period (s) | 11.4 | 11.4 | 11.7 | 12.2 | 12.1 | 12.4 | 12.8 | 13 | 13.1 | 13.1 | 12.9 | 12.9 | 12.8 | 12.7 | 12.5 | 12.3 | 12.2 | 11.9 | 12 | 11.8 | 11.7 | 11.5 | 11.4 | 11.4 | 11.2 | 11.2 | 11.2 | 11.3 | 10.3 | 10.4 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.6 | 11.4 | 11.3 | 11 | 10.7 | 10.4 | 10.3 | 10.1 | 10.2 | 10.1 | 10.1 | 10.1 | 9.9 | 9.8 | 8.8 | 8.8 | 8.7 | 8 | 8.6 |
| Wave energy (kJ) | 413 | 403 | 431 | 334 | 526 | 625 | 737 | 865 | 992 | 1128 | 1236 | 1279 | 1337 | 1342 | 1326 | 1284 | 1229 | 1165 | 1084 | 1014 | 919 | 857 | 805 | 723 | 708 | 669 | 626 | 632 | 412 | 369 | 621 | 632 | 620 | 643 | 654 | 660 | 655 | 655 | 655 | 616 | 589 | 538 | 487 | 432 | 389 | 348 | 314 | 284 | 263 | 240 | 218 | 190 | 168 | 156 | 138 | 136 |
| Wind speed (km/h) | 9.8 | 8.7 | 5.2 | 8.5 | 8.1 | 4.7 | 7.6 | 7.1 | 7.7 | 9.5 | 7.2 | 8.9 | 10.9 | 9.4 | 3.8 | 6.6 | 6.6 | 6.1 | 7.3 | 11 | 16.9 | 14.6 | 12.2 | 8.8 | 7.6 | 5.7 | 6.4 | 5.6 | 15.9 | 10.2 | 6.6 | 5.4 | 6.1 | 6.1 | 6.4 | 8.9 | 16.2 | 15.8 | 9.5 | 6.7 | 6.7 | 7.4 | 7.4 | 5.6 | 10.9 | 3 | 5.1 | 5.9 | 6.7 | 6.4 | 5.9 | 5.5 | 4.4 | 3.5 | 4.1 | 6.9 |
| Wind direction | ESEOffshore | ESEOffshore | ESEOffshore | SSECross-off | SWCross-on | WGlassy | NCross-on | NNWCross-on | NWCross-on | NNWCross-on | NNWCross-on | WNWOnshore | WCross-on | WOnshore | NNEGlassy | NECross-off | NECross-off | ENECross-off | ENECross-off | SSECross-off | SCross-off | SSECross-off | ESEOffshore | EOffshore | EOffshore | ENECross-off | ENECross-off | SEOffshore | SSWCross | SCross-off | EOffshore | NECross | NECross-off | NECross-off | ENECross-off | SSECross-off | SCross-off | SSECross-off | SEOffshore | NECross-off | NECross | NECross-off | NECross-off | WSWCross-on | WSWCross-on | SSWGlassy | EOffshore | NECross-off | NECross | NECross-off | NECross-off | SCross | SGlassy | NNEGlassy | NEGlassy | NECross-off |