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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 pm Sunday 31 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
30.4° C
(Which is slightly warmer than usual)How big are the waves at Thunders today (31 May):
- Morning surf: Morning surf (31 May, local time) - 4.5ft (1.4m), 12s period with SSW swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 4.5ft (1.4m), 12s period with SSW swell.
- Evening surf: Evening surf (31 May, local time) - 4.5ft (1.3m), 12s period with SSW swell.
The current surf forecast for Thunders at 8PM is: 1.3m 12s primary swell from a South-southwest direction and 0.7m 16s secondary swell from a South-southwest direction (forecast issued at 12:00pm May 31). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 4.5ft (1.4m) | 12s |
| Afternoon (31 May) | 4.5ft (1.4m) | 12s |
| Evening (31 May) | 4.5ft (1.3m) | 12s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 29°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 16 | SSW 15 | SW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 15 | |
598 | 589 | 508 | 500 | 454 | 446 | 402 | 393 | 496 | 568 | 553 | 578 | 876 | 889 | 763 | 774 | 712 | 722 | 690 | 781 | 878 | 1013 | 1068 | 786 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | cross-on | glassy | glassy | glassy | glassy | glassy | on | on | on | glassy | glassy | glassy | cross | glassy | cross-on | on | glassy | glassy | glassy | glassy | glassy | |
High Tide | 6:19PM0.53m | 6:26AM0.95m | 6:55PM0.53m | 7:01AM0.94m | 7:30PM0.52m | |||||||||||||||||||
Low Tide | 11:33PM0.14m | 1:13PM0.09m | 00:08AM0.13m | 1:47PM0.09m | 00:43AM0.14m | |||||||||||||||||||
 | |  |  | | | | | | | |  | | | | | | | | | | | | | |
 | 6:18 | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — |
 | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | 6:15 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 29 | 29 | 28 | 27 | 26 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 28 | 28 | 28 | 27 | 26 | 26 | 26 |
31 | 31 | 32 | 32 | 31 | 30 | 30 | 30 | 32 | 32 | 32 | 32 | 31 | 31 | 30 | 30 | 32 | 31 | 32 | 33 | 32 | 30 | 31 | 30 | |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 11 |
 kJ | 598 | 589 | 508 | 500 | 454 | 446 | 372 | 285 | 280 | 568 | 553 | 578 | 876 | 889 | 763 | 774 | 712 | 722 | 690 | 781 | 878 | 1013 | 1068 | 503 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SW 15 | SSW 11 | SSW 11 | SSW 11 | WNW 8 | WNW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 11 | SSW 15 |
| kJ | 26 | 25 | 115 | 179 | 232 | 330 | 402 | 393 | 496 | 230 | 226 | 202 | 11 | 11 | 51 | 68 | 65 | 249 | 352 | 340 | 385 | 376 | 359 | 786 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SW 18 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SW 24 | SSW 20 | SSW 20 | SSW 19 | SSW 18 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | SW 20 | SW 20 | SW 20 |
| kJ | 62 | 79 | 21 | 21 | 21 | 21 | 21 | 12 | 12 | 12 | 12 | 12 | 22 | 38 | 75 | 123 | 128 | 11 | 10 | 10 | 10 | 134 | 239 | 239 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 5 | SSE 5 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 62 | 127 | 3 | 0 | 0 | 0 | 0 | 0 | 62 | 32 | 3 | 0 | 0 | 0 | 3 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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