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Surf Forecasts:
Bankvaults surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 am Monday 18 May 2026 WIBForecast update in hr min s Forecast update imminent
Bankvaults surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bankvaults sea temperature is
30.3° C
(Which is slightly warmer than usual)How big are the waves at Bankvaults today?
The current surf forecast for Bankvaults at 5AM is: 1.3m 16s primary swell from a South direction and 0.7m 9s secondary swell from a West direction (forecast issued at 12:00am May 18). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 4.5ft (1.3m) | 15s |
| Afternoon (18 May) | 5ft (1.5m) | 15s |
| Evening (18 May) | 4.5ft (1.4m) | 14s |
Table - waves today at Bankvaults. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Mon night. Warm (max 29°C on Mon morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | |
333 | 907 | 284 | 740 | 1010 | 984 | 769 | 747 | 757 | 736 | 683 | 663 | 653 | 643 | 546 | 504 | 504 | 517 | 511 | 492 | 553 | 619 | 595 | 572 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | off | cross-off | off | off | glassy | glassy | cross | glassy | glassy | glassy | |
High Tide | 6:58AM1.38m | 7:26PM0.80m | 7:44AM1.36m | 8:14PM0.77m | 8:33AM1.30m | 9:07PM0.74m | ||||||||||||||||||
Low Tide | 00:13AM-0.01m | 1:33PM-0.04m | 00:57AM-0.01m | 2:21PM-0.01m | 1:42AM0.03m | 3:10PM0.04m | ||||||||||||||||||
 |  |  | | | |  | | | |  | | | | | | | |  | | | | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — |
1 | — | — | — | — | — | — | — | — | 4 | 1 | — | 1 | 2 | 1 | 1 | 2 | 1 | — | — | — | 1 | 1 | 1 | |
Temp °C | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 28 |
32 | 33 | 32 | 33 | 33 | 33 | 33 | 32 | 33 | 32 | 32 | 32 | 34 | 33 | 32 | 31 | 31 | 31 | 31 | 32 | 33 | 34 | 32 | 33 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | S 16 | SSW 12 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | SW 16 | S 12 | S 12 | S 12 | SW 16 | SW 15 | SW 15 |
 kJ | 282 | 907 | 258 | 740 | 1010 | 984 | 769 | 747 | 757 | 736 | 683 | 663 | 653 | 643 | 546 | 504 | 477 | 517 | 400 | 336 | 336 | 619 | 595 | 572 |
Swell 2 Height (m) Direction Period (s) | S 16 | W 9 | S 15 | W 9 | W 9 | W 8 | W 8 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | S 9 | SW 16 | SW 16 | SW 16 | S 12 | S 11 | S 10 |
| kJ | 333 | 76 | 267 | 74 | 54 | 51 | 36 | 199 | 375 | 370 | 304 | 297 | 260 | 366 | 498 | 498 | 504 | 139 | 511 | 492 | 553 | 325 | 272 | 252 |
Swell 3 Height (m) Direction Period (s) | W 9 | SW 14 | S 17 | SSW 12 | SW 19 | SW 19 | SW 19 | W 8 | W 8 | W 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | S 12 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 |
| kJ | 78 | 127 | 284 | 113 | 236 | 236 | 130 | 35 | 34 | 34 | 34 | 22 | 22 | 22 | 21 | 20 | 12 | 180 | 11 | 11 | 11 | 11 | 11 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 2 | 2 | 2 | 112 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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