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Surf Forecasts:

Thunders surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 12 am Thursday 20 Nov 2025 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
29.2° C
 (Which is slightly warmer than usual)

How big are the waves at Thunders today?

The current surf forecast for Thunders at 5AM is: 0.7m 16s primary swell from a Southwest direction and 0.7m 8s secondary swell from a South direction, 0.8m 7s secondary swell from a West-northwest direction (forecast issued at 12:00am November 20). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (WIB) & DateWave HeightWave Period
Morning (20 Nov)2.5ft (0.7m)16s
Afternoon (20 Nov)2.5ft (0.7m)15s
Evening (20 Nov)3.5ft (1.0m)15s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
20
Friday
21
Saturday
22
10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM
Rating
(10 max)
2
2
1
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
2
2
2
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
SW
0.7
SW
0.7
SW
0.7
SW
0.7
SW
0.7
SW
0.7
SW
0.8
SW
1
SW
1
SW
1.1
SW
0.8
SSW
0.8
SSW
0.9
SSW
1
SW
1.1
SW
1
SW
0.8
SSW
0.9
SSW
1.1
SW
1.1
SW
1.1
SW
1.1
SW
1
SW
Period(s) (?)161616161616151515151515151414141313131313131312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)254254254251251245212305415415472275272367390431352225304431431424405292
Wind
(km/h)
20
WNW
20
WNW
15
WNW
15
NW
10
NW
15
WNW
10
NW
5
NW
10
NW
10
NW
10
NW
10
N
5
N
10
NW
10
WNW
5
WNW
5
NW
5
NW
5
NW
5
WNW
10
WNW
15
WNW
10
W
10
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off
High Tide
/ height (m)
5:55AM
0.59
6:03PM
0.97
6:28AM
0.57
6:34PM
0.97
7:00AM
0.55
Low Tide
/ height (m)
12:13AM
0.10
11:17AM
0.13
12:44AM
0.08
11:47AM
0.12
1:17AM
0.07
12:18PM
0.12
Thursday
20
Friday
21
Saturday
22
Sunrise---5:56-------5:56-------5:56----
Sunset------6:12-------6:12-------6:13-
thunderstorm
thunderstorm
thunderstorm
light rain
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
light rain
part cloud
thunderstorm
thunderstorm
thunderstorm
rain showers
rain showers
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
Rain (mm)
1243-11--21-11231-------
Temp. °C262626262727272726262625262727262626262627282827
Feels °C (?)262728282929303129292928303030302929292930303030
  • 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

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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 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.

View detailed surf forecast for Thunders at:
surf-forecast.com

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