Bankvaults surfForecast / Mentawi Islands / Indonesia

information circle12 Day Weather and Surf, issued 12 am Sunday 08 Mar 2026 WIB
Forecast 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
29.2° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Mar 08) at 10AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.8m and 13s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Bankvaults in the next 12 days are 1.1m 18s and forecast to arrive on Saturday (Mar 14) at 10PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Monday (Mar 09) at 7PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 8th Mar)2.5ft (0.8m) 16s
Best Surf10AM (Sun 8th Mar)2.5ft (0.8m) 16s
Most Powerful10PM (Sat 14th Mar)3.5ft (1.1m) 18s

Table - best surf conditions forecast for Bankvaults over the next 12 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 37mm), heaviest during Mon night. Warm (max 29°C on Sun afternoon, min 25°C on Tue afternoon). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 18mm), heaviest on Thu night. Warm (max 29°C on Thu afternoon, min 26°C on Tue night). Wind will be generally light.

Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Sat
14
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
3
3
2
3
3
2
2
2
2
2
2
2
2
1
1
2
0
3
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.8
S
0.8
SSW
1
S
0.8
S
1
S
1
SSW
0.9
SW
1
SSW
0.9
SSW
1.1
SSW
1.1
SSW
0.9
SSW
1
SSW
0.9
SSW
0.9
SSW
1
S
1
S
1.1
S
1.1
S
0.8
SSW
0.9
SSW
Period(s) (?)111617161515141413131312121212111010102019
Wave
Graph
(?)Metric surfscale
Energy kJ (?)155306593326441456297379309396367273292222218220208249260485549
Wind
(km/h)
15
WNW
10
NW
10
WNW
10
WNW
10
NW
10
W
10
W
0
WSW
15
W
5
WNW
5
NNE
10
W
5
WNW
0
ENE
5
SW
5
WSW
5
SSE
10
SSW
5
SSW
10
SSE
5
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
cross-
off
offcross-
off
cross-
off
glasscross-
off
cross-
off
cross-
off
cross-
off
glassglasscross-
on
crossglasscross-
on
glassoncross-
on
High Tide
/ height (m)
9:10AM
1.09
9:11PM
0.82
9:39AM
1.03
9:30PM
0.72
10:10AM
0.95
9:43PM
0.63
10:50AM
0.87
9:47PM
0.55
12:04PM
0.80
9:45PM
0.47
2:10PM
0.79
3:37AM
0.50
3:33PM
0.86
Low Tide
/ height (m)
2:32AM
0.06
3:12PM
0.16
2:58AM
0.10
3:48PM
0.22
3:26AM
0.15
4:28PM
0.30
3:57AM
0.21
5:20PM
0.37
4:34AM
0.28
6:43PM
0.43
5:32AM
0.36
11:04PM
0.40
7:16AM
0.41
Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Sat
14
Sunrise-6:30--6:28--6:28--6:28--6:28--6:28--6:28-
Sunset--6:37--6:37--6:37--6:37--6:36--6:36--6:36
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
Rain (mm)
12165213613212--721451
Temp. °C272829272827272626262827272829272828272828
Feels °C (?)293131303230303029303230313232303130303131
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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