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Surf Forecasts:
Bankvaults surfForecast / Mentawi Islands / Indonesia
16 Day Weather and Surf, issued 6 am Wednesday 13 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 slightly warmer than usual)Best Forecast Surf Conditions for Bankvaults this week:
The surf forecast for Bankvaults over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 13) at 4PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bankvaults in the next 16 days are 1.7m 15s and forecast to arrive on Friday (May 15) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (May 14) at 4AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Wed 13th May) | 4.5ft (1.4m) 14s |
| Best Surf | 4PM (Thu 14th May) | 5ft (1.6m) 14s |
| Most Powerful | 10AM (Fri 15th May) | 5.5ft (1.7m) 15s |
Table - best surf conditions forecast for Bankvaults over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 50mm), heaviest during Wed morning. Warm (max 28°C on Thu morning, min 25°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 35mm), heaviest during Sun night. Warm (max 28°C on Mon morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 13 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 16 | S 15 | S 15 | S 14 | S 13 | S 13 | SW 17 | |
834 | 710 | 779 | 863 | 876 | 606 | 1418 | 1240 | 989 | 817 | 560 | 534 | 444 | 378 | 329 | 623 | 970 | 855 | 663 | 555 | 633 | |
Wind (km/h) | |||||||||||||||||||||
cross | glassy | cross-off | off | cross-off | off | off | cross-off | cross-off | off | cross-off | glassy | cross-off | glassy | glassy | glassy | glassy | off | off | cross-off | off | |
High Tide | 3:26PM0.85m | 4:11AM1.04m | 4:19PM0.86m | 4:50AM1.17m | 5:07PM0.86m | 5:31AM1.27m | 5:54PM0.85m | 6:14AM1.35m | 6:39PM0.83m | 6:58AM1.38m | 7:26PM0.80m | 7:44AM1.36m | 8:14PM0.77m | ||||||||
Low Tide | 9:21PM0.18m | 10:16AM0.23m | 10:05PM0.12m | 11:09AM0.12m | 10:47PM0.06m | 11:58AM0.03m | 11:30PM0.02m | 12:46PM-0.02m | 00:13AM-0.01m | 1:33PM-0.04m | 00:57AM-0.01m | 2:21PM-0.01m | 1:42AM0.03m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — |
 | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — |
6 | 1 | 5 | — | 7 | 4 | 4 | 10 | 13 | — | 4 | 5 | — | 2 | 12 | 2 | 2 | 8 | 6 | 12 | 29 | |
Temp °C | 27 | 27 | 27 | 28 | 27 | 27 | 26 | 26 | 25 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 27 | 25 |
31 | 31 | 31 | 31 | 31 | 31 | 29 | 29 | 29 | 30 | 31 | 31 | 31 | 31 | 32 | 33 | 33 | 32 | 31 | 30 | 26 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SSW 13 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 15 | S 15 | S 14 | S 13 | S 13 | S 12 |
 kJ | 834 | 710 | 779 | 863 | 876 | 606 | 1418 | 1240 | 989 | 817 | 560 | 534 | 444 | 378 | 229 | 623 | 970 | 855 | 663 | 555 | 413 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 9 | W 8 | W 8 | W 8 | S 16 | W 8 | WNW 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | S 16 | S 12 | W 8 | SW 18 | SW 18 | SW 16 | SW 17 |
| kJ | 18 | 38 | 49 | 32 | 32 | 529 | 32 | 57 | 73 | 76 | 76 | 99 | 74 | 74 | 329 | 139 | 50 | 375 | 300 | 310 | 633 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SE 8 | SSE 7 | S 18 | W 8 | NNE 5 | SE 8 | SE 7 | SE 7 | SW 16 | SSE 6 | SW 15 | SW 15 | W 9 | W 8 | SW 19 | W 8 | W 8 | WNW 8 | WNW 8 |
| kJ | 23 | 25 | 28 | 18 | 162 | 32 | 8 | 16 | 14 | 12 | 201 | 4 | 75 | 75 | 74 | 51 | 236 | 34 | 33 | 21 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | NNE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 0 | 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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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Bankvaults surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Bankvaults Surf forecast
The above surf forecast table for Bankvaults provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bankvaults can be found by selecting the local surf guide option on the grey menu. Our Bankvaults surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Bankvaults) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Bankvaults may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
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