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Surf Forecasts:
Bankvaults surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Thursday 21 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
30.2° C
(Which is normal for this time of year)How big are the waves at Bankvaults today?
The current surf forecast for Bankvaults at 2AM is: 1.2m 15s primary swell from a Southwest direction and 0.8m 9s secondary swell from a South direction (forecast issued at 06:00pm May 21). An open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 4ft (1.2m) | 15s |
| Afternoon (22 May) | 4.5ft (1.3m) | 15s |
| Evening (22 May) | 4.5ft (1.4m) | 15s |
Table - waves today at Bankvaults. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Thu afternoon. Warm (max 29°C on Fri afternoon, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SW 13 | |
557 | 683 | 773 | 674 | 614 | 606 | 685 | 685 | 773 | 784 | 795 | 838 | 795 | 604 | 548 | 564 | 752 | 663 | 556 | 532 | 406 | 400 | 458 | 394 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | off | cross-off | cross-off | off | off | off | off | cross-off | |
High Tide | 10:07PM0.71m | 10:22AM1.11m | 11:18PM0.72m | 11:25AM1.00m | 00:36AM0.75m | 12:34PM0.90m | ||||||||||||||||||
Low Tide | 4:02PM0.11m | 3:24AM0.19m | 4:57PM0.17m | 4:25AM0.30m | 5:57PM0.22m | 5:42AM0.38m | ||||||||||||||||||
 |  | | | | | |  | |  | | | | | | | | |  | | | | | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:20 |
3 | 4 | 2 | 2 | 3 | 2 | 1 | — | 1 | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 1 | — | |
Temp °C | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 |
31 | 30 | 30 | 29 | 28 | 28 | 28 | 30 | 32 | 32 | 31 | 31 | 29 | 30 | 32 | 33 | 33 | 32 | 31 | 31 | 31 | 30 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SW 13 |
 kJ | 557 | 683 | 773 | 674 | 614 | 606 | 685 | 685 | 773 | 784 | 795 | 838 | 795 | 604 | 548 | 564 | 752 | 663 | 556 | 532 | 406 | 400 | 458 | 394 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | W 6 | W 6 | S 9 | W 6 | W 7 | S 9 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 149 | 118 | 116 | 111 | 106 | 81 | 56 | 56 | 56 | 33 | 33 | 73 | 22 | 23 | 20 | 13 | 43 | 24 | 24 | 35 | 36 | 37 | 37 | 36 |
Swell 3 Height (m) Direction Period (s) | NW 7 | NW 7 | NW 7 | NW 7 | W 14 | S 12 | S 8 | S 10 | W 10 | S 9 | S 9 | WNW 7 | S 8 | S 8 | S 8 | WNW 7 | S 12 | S 8 | S 8 | S 7 | S 7 | S 7 | SSE 11 | S 7 |
| kJ | 12 | 12 | 12 | 12 | 4 | 3 | 50 | 45 | 2 | 43 | 55 | 27 | 34 | 36 | 35 | 21 | 3 | 20 | 28 | 27 | 26 | 25 | 12 | 16 |
Wind waves Height (m) Direction Period (s) | — | NW 5 | — | NW 7 | NW 7 | WNW 5 | — | WNW 6 | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 7 | — | 7 | 11 | 20 | — | 77 | 43 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 92 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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