Thunders surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 6 am Friday 08 May 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
30.5° C
(Which is slightly warmer than usual)

How big are the waves at Thunders today?

The current surf forecast for Thunders at 9AM is: 1.4m 16s primary swell from a Southwest direction and 0.9m 9s secondary swell from a South-southeast direction (forecast issued at 06:00am May 08). The wind direction is predicted to be cross-onshore.

Time (WIB) & DateWave HeightWave Period
Morning (08 May)4.5ft (1.4m)16s
Afternoon (08 May)4ft (1.2m)15s
Evening (08 May)3.5ft (1.1m)14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 25mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 25°C on Sat night). Wind will be generally light.

Friday
8
Saturday
9
Sunday
10
Mon
11
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
Rating
(10 max)
2
2
2
1
2
3
3
3
3
3
3
2
2
2
2
2
2
1
2
2
1
1
1
2
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.4
SW
16
1.4
SW
16
1.4
SW
16
1.3
SW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
14
1
SW
14
1
SW
14
1
SW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.8
SW
13
0.9
SW
14
0.9
SW
14
0.9
SW
14
0.9
SW
14
Wave Graph
Metric surfscale
Energy kJ
917
906
894
743
631
536
536
536
529
407
401
390
261
261
261
257
261
261
261
208
272
288
293
264
Wind (km/h)
10
ESE
10
ESE
15
SE
10
SSE
5
SSW
0
NW
5
NNE
5
NNE
0
NNE
5
N
5
N
5
WNW
0
WNW
0
E
5
ENE
15
N
20
N
15
NNW
10
NNW
5
NNE
5
S
10
S
5
SSE
5
SE
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
cross-off
glassy
glassy
glassy
glassy
glassy
glassy
glassy
off
off
cross-off
off
glassy
on
on
on
glassy
High Tide
9:36AM0.80m
10:23PM0.46m
10:22AM0.76m
11:48PM0.47m
11:23AM0.73m
Low Tide
2:36AM0.23m
4:39PM0.23m
3:18AM0.30m
5:38PM0.25m
4:22AM0.36m
6:41PM0.25m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:15
6:15
6:15
3
2
4
3
4
2
1
1
1
3
5
1
Temp °C
26
26
26
26
27
26
27
26
26
26
27
28
28
28
27
26
25
25
27
27
28
27
27
27
29
29
29
29
31
30
31
30
31
31
31
33
33
33
32
29
26
27
31
32
32
31
31
32
Swell 1
Height (m)
Direction
Period (s)
1.4
SW
16
1.4
SW
16
1.4
SW
16
1.3
SW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
14
1
SW
14
1
SW
14
1
SW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.8
SW
13
0.9
SW
14
0.9
SW
14
0.9
SW
14
0.9
SW
14
Energy kJ
917
906
894
743
631
536
536
536
529
407
401
390
261
261
261
257
261
261
261
208
272
288
293
264
Swell 2
Height (m)
Direction
Period (s)
0.8
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.7
SSE
9
0.7
SSE
9
0.7
W
8
0.8
SSE
8
0.8
SSE
8
0.8
SSE
8
0.8
SSE
8
0.7
SSE
8
0.7
SSE
8
0.7
SSE
8
0.6
SSE
8
0.6
SSE
8
0.7
SSE
8
0.6
SSE
7
0.7
SSE
8
0.7
SSE
8
0.7
SSE
8
0.7
SSE
8
0.6
SSE
8
0.6
SSE
8
Energy kJ
103
108
108
108
79
79
55
82
80
80
78
59
59
58
39
40
52
32
51
51
51
50
44
44
Swell 3
Height (m)
Direction
Period (s)
0.5
SW
12
0.5
SW
12
0.4
WNW
8
0.5
W
8
0.5
W
8
0.6
W
8
0.6
SSE
9
0.7
W
8
0.7
W
8
0.7
W
8
0.7
W
8
0.6
W
8
0.6
W
8
0.6
W
8
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
8
0.5
WNW
8
0.4
WNW
7
0.4
WNW
7
0.4
WNW
7
0.3
WNW
7
0.3
WNW
7
Energy kJ
69
69
21
31
29
41
61
55
57
58
60
46
48
48
33
31
29
29
32
18
18
17
10
9
Wind waves
Height (m)
Direction
Period (s)
0.3
N
4
0.4
N
3
0.5
N
3
0.4
NNW
4
Energy kJ
4
2
6
5
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
Distance (km)
3
3
3
3
32
0
0
0
0
0
0
0
0
0
0
0
0
40
0
0
31
32
3
0
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
4
4
4
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
3
3
Header Global
Rating
(10 max)
7
6
6
6
7
6
7
7
6
5
5
5
5
5
5
5
4
4
4
4
4
4
9
9
  • 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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