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Bankvaults surfForecast / Mentawi Islands / Indonesia
12 Day Weather and Surf, issued 6 am Wednesday 21 May 2025 WIB
Best Forecast Surf Conditions for Bankvaults this week:
The surf forecast for Bankvaults over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 21) at 1PM. The primary swell is predicted to be 0.9m and 17s period with a secondary swell of 0.7m and 12s. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Bankvaults in the next 12 days are 1.7m 16s and forecast to arrive on Thursday (May 22) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (May 27) at 4PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Wed 21st May) | 3ft (0.9m) 17s |
| Best Surf | 1AM (Thu 22nd May) | 4.5ft (1.4m) 17s |
| Most Powerful | 4PM (Thu 22nd May) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Bankvaults over the next 12 days.
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 01 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 17 | 17 | 17 | 16 | 16 | 15 | 18 | 15 | 16 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 9 | 9 | 20 | 20 | 18 | 18 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 20 | 18 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 414 | 679 | 1061 | 1255 | 1373 | 1103 | 928 | 1069 | 1184 | 949 | 752 | 638 | 479 | 440 | 362 | 321 | 242 | 157 | 75 | 172 | 99 | 74 | 239 | 537 | 1646 | 2217 | 2465 | 2545 | 2204 | 1785 | 1126 | 1144 | 890 | 485 | 845 | 2089 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | glass | glass | cross | cross- off | glass | glass | off | off | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | off | off | off | glass | glass | glass | glass | on | on | cross- on | on | glass |
High Tide / height (m) | 12:16PM 0.91 | 1:52AM 0.79 | 1:37PM 0.88 | 2:51AM 0.92 | 2:49PM 0.87 | 3:42AM 1.06 | 3:51PM 0.86 | 4:28AM 1.19 | 4:47PM 0.85 | 5:14AM 1.29 | 5:39PM 0.83 | 6:00AM 1.35 | 6:27PM 0.81 | 6:46AM 1.37 | 7:15PM 0.78 | 7:33AM 1.34 | 8:03PM 0.75 | 8:20AM 1.28 | 8:54PM 0.73 | 9:09AM 1.19 | 9:49PM 0.71 | 9:59AM 1.09 | 10:51PM 0.71 | |||||||||||||
Low Tide / height (m) | 6:58PM 0.24 | 7:10AM 0.40 | 7:57PM 0.21 | 8:38AM 0.34 | 8:50PM 0.16 | 9:51AM 0.24 | 9:39PM 0.11 | 10:52AM 0.13 | 10:26PM 0.07 | 11:45AM 0.05 | 11:11PM 0.03 | 12:35PM -0.01 | 11:56PM 0.01 | 1:23PM -0.02 | 12:41AM 0.01 | 2:09PM 0.00 | 1:26AM 0.05 | 2:56PM 0.05 | 2:12AM 0.11 | 3:42PM 0.11 | 3:00AM 0.20 | 4:30PM 0.17 | 3:53AM 0.29 | |||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 01 | |||||||||||||||||||||||||
| Sunrise | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:20 | - | - |
| Sunset | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:21 | - | - | 6:21 | - | - | 6:21 | - | - | 6:21 | - |
 | |  |  |  |  | | |  | | | |  | |  | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | 2 | 3 | - | 1 | - | 1 | 3 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | - | 1 | - | - | - | - | 1 | 4 | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 29 | 29 | 28 | 28 | 29 | 27 | 28 | 28 | 28 | 28 | 29 | 27 | 28 | 29 | 27 | 29 | 29 | 27 | 30 | 30 | 27 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 28 |
| Feels °C (?) | 32 | 32 | 32 | 33 | 32 | 31 | 33 | 33 | 33 | 32 | 33 | 31 | 32 | 33 | 30 | 31 | 31 | 29 | 31 | 31 | 30 | 32 | 33 | 31 | 32 | 32 | 32 | 34 | 33 | 32 | 33 | 33 | 31 | 32 | 32 | 33 |
Short Range Forecast: Light rain (total 6mm), mostly falling on Thu afternoon. Warm (max 29°C on Wed morning, min 26°C on Thu night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 13mm), heaviest on Sat afternoon. Warm (max 29°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light. | Days 6-9 Weather Summary Light rain (total 7mm), mostly falling on Thu afternoon. Warm (max 30°C on Tue morning, min 27°C on Tue night). Wind will be generally light. | Long Range Forecast: Mostly dry. Warm (max 29°C on Fri morning, min 27°C on Fri night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 12 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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