Thunders surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 12 am Sunday 11 Jan 2026 WIB
Forecast update in hr  min  s Forecast update imminent
Thunders surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thunders sea temperature is
29.5° C
(Which is slightly warmer than usual)


How big are the waves at Thunders today?

The current surf forecast for Thunders at 4AM is: 0.8m 12s primary swell from a South-southwest direction and 0.7m 9s secondary swell from a West-southwest direction (forecast issued at 12:00am January 11). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (WIB) & DateWave HeightWave Period
Morning (11 Jan)2.5ft (0.8m)12s
Afternoon (11 Jan)2.5ft (0.8m)11s
Evening (11 Jan)2.5ft (0.7m)11s

Table - waves today at Thunders. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Sunday
11
Monday
12
Tuesday
13
10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM
Rating
(10 max)
1
1
2
2
2
2
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SSW
0.9
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.7
SSW
0.7
SSW
0.5
SW
0.6
SSE
0.6
SSE
0.6
SSE
0.6
SSE
0.6
SSE
0.7
SSE
0.6
SSE
0.6
SSE
0.6
SSE
0.7
SSE
0.7
SSE
0.7
SSE
0.4
SW
0.4
SW
Period(s) (?)121212121211111111119999999999991818
Wave
Graph
(?)Metric surfscale
Energy kJ (?)226222174169150145143111109666868686868886868669090889090
Wind
(km/h)
10
WSW
5
W
5
WNW
5
NNW
5
NNW
10
WNW
10
W
10
WNW
5
NW
10
WNW
10
WNW
10
NW
5
NW
10
WNW
15
WNW
10
WNW
10
WNW
10
NW
10
NW
10
NNW
10
NW
15
WNW
15
WNW
15
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
cross-
off
offcross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
10:44PM
0.64
12:07PM
0.74
11:26PM
0.54
1:07PM
0.74
12:31AM
0.45
2:12PM
0.74
Low Tide
/ height (m)
4:57AM
0.18
6:13PM
0.39
5:31AM
0.21
8:01PM
0.39
6:15AM
0.24
Sunday
11
Monday
12
Tuesday
13
Sunrise---6:18-------6:18-------6:18----
Sunset------6:35-------6:35-------6:36-
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
Rain (mm)
--12--------------11-11-
Temp. °C272726262728282727272626282828272727262627272827
Feels °C (?)303130303131313031302929323030303031292930293029
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

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 Thunders 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.


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