Bankvaults surfForecast / Mentawi Islands / Indonesia

information circle12 Day Weather and Surf, issued 12 pm Sunday 07 Dec 2025 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
29.5° C
(Which is slightly warmer than usual)


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 (Dec 07) at 10PM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.9m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Bankvaults in the next 12 days are 1.9m 9s and forecast to arrive on Sunday (Dec 14) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Saturday (Dec 13) at 4PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sun 7th Dec)2.5ft (0.8m) 16s
Best Surf10PM (Sun 7th Dec)2.5ft (0.8m) 16s
Most Powerful 1AM (Sun 14th Dec)6ft (1.9m) 9s

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 71mm), heaviest during Mon night. Warm (max 27°C on Sun morning, min 23°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 247mm), heaviest during Fri night. Warm (max 26°C on Wed morning, min 24°C on Wed night). Wind will be generally light.

Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
1
3
3
3
1
2
3
2
2
2
2
2
2
2
2
2
1
3
3
3
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SSW
0.9
SSW
0.9
SW
1
SW
1
SW
1.1
SW
1.1
SW
1.1
SW
1
SW
0.9
SW
0.9
SW
0.9
SW
1
SW
1
SW
0.9
SW
0.8
SW
0.9
SW
0.6
SSW
2.1
WNW
1.7
W
1.9
WSW
Period(s) (?)121316161515141414141314141413131214889
Wave
Graph
(?)Metric surfscale
Energy kJ (?)245252381502459543466521384317299304373357282193216163560411626
Wind
(km/h)
15
WNW
20
WSW
10
N
15
NNE
5
NNE
15
SSW
15
NE
5
NNE
15
NW
10
NNW
15
WNW
15
NW
15
WNW
20
WNW
20
NW
20
NNW
25
NW
15
NW
25
NW
20
NW
20
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
on
cross-
off
cross-
off
offoffcross-
off
offcross-
off
cross-
off
cross-
off
offoffcross-
off
offoffoff
High Tide
/ height (m)
7:56PM
1.34
8:30AM
0.77
8:44PM
1.26
9:23AM
0.76
9:33PM
1.16
10:21AM
0.76
10:23PM
1.04
11:25AM
0.78
11:18PM
0.92
12:33PM
0.81
12:20AM
0.81
1:39PM
0.86
1:29AM
0.73
Low Tide
/ height (m)
1:05PM
0.02
2:33AM
0.00
1:52PM
0.07
3:18AM
0.06
2:41PM
0.15
4:03AM
0.12
3:34PM
0.25
4:48AM
0.18
4:33PM
0.35
5:34AM
0.23
5:45PM
0.43
6:22AM
0.27
7:18PM
0.47
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunrise6:07--6:07--6:07--6:07--6:07--6:09--6:09--
Sunset-6:20--6:21--6:21--6:22--6:22--6:22--6:22-
mod rain
mod rain
thunderstorm
part cloud
thunderstorm
thunderstorm
light rain
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
light rain
light rain
Rain (mm)
873-7392-582117272327172780725
Temp. °C272626272725252626262525242525252524242526
Feels °C (?)292830303128272929292826262727262625242627
  • 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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