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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 am Monday 25 May 2026 WIBForecast 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 2PM is: 0.8m 12s primary swell from a South-southwest direction and 0.6m 16s secondary swell from a South-southwest direction, 0.9m 9s secondary swell from a West-northwest direction (forecast issued at 06:00am May 25). The wind direction is predicted to be cross-offshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 2ft (0.6m) | 15s |
| Afternoon (25 May) | 2ft (0.6m) | 16s |
| Evening (25 May) | 4ft (1.2m) | 16s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon afternoon. Warm (max 28°C on Tue morning, min 26°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 12 | SW 15 | SSW 15 | SSW 12 | SW 16 | SW 16 | SSW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 17 | SW 17 | SW 16 | |
147 | 144 | 154 | 187 | 208 | 748 | 907 | 854 | 1061 | 964 | 1044 | 1239 | 1224 | 1193 | 1118 | 1059 | 1031 | 915 | 902 | 890 | 817 | 2375 | 2483 | 2445 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | |
High Tide | 1:34AM0.67m | 1:18PM0.67m | 2:35AM0.75m | 2:26PM0.62m | 3:24AM0.82m | 3:26PM0.59m | ||||||||||||||||||
Low Tide | 7:26AM0.37m | 7:50PM0.21m | 8:59AM0.34m | 8:34PM0.21m | 10:05AM0.29m | 9:13PM0.20m | ||||||||||||||||||
 |  |  | | |  | |  |  |  | |  | |  | | | | | | | | | | | |
 | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | 6:16 |
 | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | 6:15 |
2 | — | 2 | — | 1 | 4 | 3 | — | — | — | 2 | — | — | — | — | — | — | — | — | — | 2 | 3 | 3 | 1 | |
Temp °C | 25 | 26 | 27 | 27 | 27 | 26 | 27 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 28 | 28 | 28 | 27 | 27 | 26 |
28 | 29 | 29 | 28 | 28 | 28 | 30 | 29 | 29 | 30 | 31 | 30 | 30 | 31 | 31 | 32 | 30 | 30 | 32 | 32 | 33 | 31 | 31 | 30 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SSW 12 | SW 13 | SW 16 | SSW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 |
 kJ | 147 | 144 | 144 | 187 | 167 | 748 | 907 | 854 | 1061 | 964 | 1044 | 1239 | 1224 | 1193 | 1118 | 1059 | 1031 | 915 | 902 | 890 | 711 | 2375 | 2483 | 2445 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | SW 15 | SSW 15 | SSW 16 | SW 16 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSE 8 | SW 20 | SW 19 | SW 18 | SW 18 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 56 | 139 | 154 | 175 | 208 | 88 | 68 | 88 | 68 | 68 | 67 | 64 | 55 | 55 | 55 | 54 | 38 | 306 | 436 | 664 | 817 | 38 | 38 | 38 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | WNW 8 | SSE 8 | SSE 8 | WNW 8 | WNW 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 41 | 41 | 41 | 39 | 39 | 39 | 35 | 36 | 36 | 40 | 40 | 40 | 40 | 39 | 39 | 39 | 39 | 37 | 36 | 38 | 38 | 24 | 23 | 23 |
Wind waves Height (m) Direction Period (s) | — | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 2 | WNW 4 | NW 3 | WNW 9 | — | WNW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 88 | 113 | 113 | 90 | 1 | 6 | 3 | 30 | — | 30 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 84 | 162 | 84 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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