Thunders surfForecast / Mentawi Islands / Indonesia

information circle48hr Weather and Surf, issued 6 am Wednesday 27 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
30.2° C
(Which is slightly warmer than usual)

How big are the waves at Thunders today?

The current surf forecast for Thunders at 12PM is: 1.5m 14s primary swell from a Southwest direction and 0.9m 19s secondary swell from a Southwest direction (forecast issued at 06:00am May 27). The wind direction is predicted to be glassy and the swell rating is 4.

Time (WIB) & DateWave HeightWave Period
Morning (27 May)5ft (1.5m)14s
Afternoon (27 May)3.5ft (1.1m)18s
Evening (27 May)6.5ft (2.0m)17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Wed night. Warm (max 29°C on Wed morning, min 26°C on Wed night). Wind will be generally light.

Wednesday
27
Thursday
28
Friday
29
Sat
30
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)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
3
4
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
14
1.5
SW
14
1.5
SW
14
1.5
SW
14
1.1
SW
18
1.9
SW
17
2.1
SW
17
2.1
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
15
2
SSW
15
2
SSW
15
2
SSW
14
2.1
SSW
14
2
SSW
14
2
SSW
14
1.9
SSW
14
1.9
SSW
14
1.8
SSW
13
Wave Graph
Metric surfscale
Energy kJ
1031
915
902
890
817
2238
2483
2445
2506
2444
2413
2383
2352
2205
2037
1737
1714
1690
1835
1582
1582
1408
1349
1186
Wind (km/h)
5
NNE
5
NE
0
NE
5
S
0
WNW
5
SW
5
S
5
SSE
5
ESE
5
ENE
5
ENE
0
W
0
W
5
SSW
0
S
0
SSE
5
SE
5
ENE
5
ESE
5
SSW
5
S
5
SSE
5
SSE
5
SSE
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
on
glassy
glassy
cross-on
glassy
High Tide
3:24AM0.82m
3:26PM0.59m
4:05AM0.87m
4:17PM0.57m
4:42AM0.91m
5:02PM0.55m
Low Tide
10:05AM0.29m
9:13PM0.20m
10:54AM0.23m
9:49PM0.19m
11:32AM0.17m
10:24PM0.17m
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
part cloud
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
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
1
1
1
1
2
1
1
Temp °C
26
26
28
29
28
28
27
27
27
26
28
28
28
28
27
27
26
26
28
29
28
27
27
27
30
30
33
34
33
33
31
32
32
30
32
32
32
32
31
32
30
30
32
33
32
31
31
32
Swell 1
Height (m)
Direction
Period (s)
1.6
SW
14
1.5
SW
14
1.5
SW
14
1.5
SW
14
1.4
SW
14
1.9
SW
17
2.1
SW
17
2.1
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
16
2.2
SW
15
2
SSW
15
2
SSW
15
2
SSW
14
2.1
SSW
14
2
SSW
14
2
SSW
14
1.9
SSW
14
1.9
SSW
14
1.8
SSW
13
Energy kJ
1031
915
902
890
711
2238
2483
2445
2506
2444
2413
2383
2352
2205
2037
1737
1714
1690
1835
1582
1582
1408
1349
1186
Swell 2
Height (m)
Direction
Period (s)
0.6
SSE
8
0.6
SW
20
0.8
SW
19
1
SW
18
1.1
SW
18
0.5
WNW
8
0.5
WNW
8
0.5
WNW
8
0.5
WNW
8
0.5
WNW
8
0.5
WNW
8
0.5
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.3
WNW
8
Energy kJ
45
306
436
664
817
38
38
37
37
37
37
37
26
25
25
24
23
23
20
20
20
20
20
12
Swell 3
Height (m)
Direction
Period (s)
0.5
WNW
8
0.6
SSE
8
0.6
SSE
8
0.5
SSE
8
0.5
WNW
8
0.4
SSE
8
0.4
SSE
8
0.4
SSE
8
0.3
SSE
8
0.3
SSE
7
0.3
SSE
7
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
9
0.4
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
8
Energy kJ
39
44
43
35
38
24
23
23
12
10
11
17
16
16
16
16
16
15
19
18
10
10
10
9
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Distance (km)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
32
0
0
3
0
Best forecast wave conditions in Mentawi Islands
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
6
7
7
9
9
7
8
6
6
9
9
9
7
9
8
7
7
6
6
6
5
5
5
5
  • 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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