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Surf Forecasts:
Bankvaults surfForecast / Mentawi Islands / Indonesia
16 Day Weather and Surf, issued 12 am Monday 20 Apr 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
29.9° C
(Which is normal for this time of year)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 Monday (Apr 20) at 4AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.7m and 12s. 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 16s and forecast to arrive on Thursday (Apr 23) at 7AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 20th Apr) | 2.5ft (0.8m) 16s |
| Best Surf | 4PM (Wed 22nd Apr) | 3.5ft (1.1m) 18s |
| Most Powerful | 7AM (Thu 23rd Apr) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Bankvaults over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 36mm), heaviest during Mon afternoon. Warm (max 29°C on Mon morning, min 26°C on Wed afternoon). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 9mm), mostly falling on Wed night. Warm (max 29°C on Fri afternoon, min 26°C on Wed night). Wind will be generally light. | |||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sun 26 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 14 | 14 | 13 | 12 | 19 | 18 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 18 | 16 | 15 | 14 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 264 | 258 | 275 | 367 | 347 | 239 | 267 | 480 | 759 | 1330 | 1216 | 1327 | 1352 | 1047 | 888 | 643 | 425 | 528 | 797 | 1364 | 1257 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | off | cross | off | off | glass | cross- on | cross- off | off | cross- off | glass | cross- off | glass | glass | glass | glass | cross- on | cross- on | on | cross- on | |
High Tide / height (m) | 7:57AM 1.34 | 8:18PM 0.83 | 8:41AM 1.29 | 9:03PM 0.75 | 9:29AM 1.20 | 9:57PM 0.67 | 10:27AM 1.09 | 11:13PM 0.62 | 11:41AM 0.99 | 12:55AM 0.62 | 1:08PM 0.92 | 2:27AM 0.70 | 2:29PM 0.90 | |||||||||
Low Tide / height (m) | 1:19AM -0.03 | 2:26PM -0.02 | 1:57AM -0.00 | 3:14PM 0.05 | 2:38AM 0.06 | 4:06PM 0.13 | 3:24AM 0.16 | 5:09PM 0.22 | 4:21AM 0.27 | 6:29PM 0.28 | 5:40AM 0.37 | 8:03PM 0.29 | 7:36AM 0.42 | |||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sun 26 | ||||||||||||||||
| Sunrise | - | 6:20 | - | - | 6:20 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | |
| Sunset | - | - | 6:22 | - | - | 6:22 | - | - | 6:22 | - | - | 6:22 | - | - | 6:22 | - | - | 6:22 | - | - | 6:22 | |
 |  |  |  |  | | | |  | | | | | | |  | | | | | | ||
Rain (mm) | 1 | 1 | 11 | 6 | - | 5 | 5 | 1 | 6 | 3 | - | 2 | 1 | - | 2 | - | - | 1 | 4 | 6 | 1 | |
| Temp. °C | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | |
| Feels °C (?) | 32 | 33 | 33 | 32 | 33 | 32 | 31 | 32 | 32 | 31 | 32 | 32 | 32 | 33 | 34 | 33 | 33 | 34 | 33 | 32 | 33 | |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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