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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 pm Tuesday 19 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?
The current surf forecast for Thunders at 8PM is: 1.4m 12s primary swell from a South direction and 1.0m 16s secondary swell from a Southwest direction (forecast issued at 12:00pm May 19). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 5ft (1.5m) | 13s |
| Afternoon (19 May) | 5ft (1.5m) | 13s |
| Evening (19 May) | 4.5ft (1.4m) | 12s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Tue night. Warm (max 29°C on Tue morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | |
760 | 749 | 643 | 581 | 563 | 477 | 523 | 511 | 492 | 635 | 619 | 595 | 565 | 557 | 631 | 696 | 550 | 557 | 572 | 692 | 783 | 666 | 614 | 606 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | cross-on | on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | cross-off | glassy | on | glassy | glassy | glassy | glassy | glassy | glassy | |
High Tide | 8:00PM0.58m | 8:17AM1.10m | 8:53PM0.56m | 9:08AM1.02m | 9:53PM0.55m | |||||||||||||||||||
Low Tide | 2:20PM-0.01m | 1:21AM0.05m | 3:11PM0.03m | 2:10AM0.11m | 4:05PM0.08m | 3:05AM0.18m | ||||||||||||||||||
 |  |  |  |  | | | | | | |  | | | | | | | | | | | | | |
 | 6:16 | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — |
 | — | — | 6:14 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | 6:14 |
— | — | 1 | — | 2 | 2 | — | — | — | 1 | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 2 | 2 | — | — | |
Temp °C | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 29 | 28 | 29 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 |
33 | 33 | 34 | 32 | 33 | 32 | 32 | 32 | 34 | 33 | 33 | 32 | 33 | 33 | 32 | 31 | 33 | 32 | 33 | 33 | 32 | 32 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
 kJ | 760 | 749 | 643 | 581 | 563 | 477 | 469 | 400 | 400 | 393 | 383 | 274 | 565 | 557 | 631 | 696 | 550 | 557 | 572 | 692 | 783 | 666 | 614 | 606 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | S 9 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 9 | S 10 | S 10 | S 10 |
| kJ | 300 | 260 | 310 | 432 | 498 | 443 | 523 | 511 | 492 | 635 | 619 | 595 | 127 | 284 | 231 | 227 | 223 | 194 | 151 | 145 | 139 | 116 | 90 | 66 |
Swell 3 Height (m) Direction Period (s) | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | S 11 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | SSE 9 | SSE 9 | SE 9 |
| kJ | 34 | 22 | 22 | 22 | 22 | 21 | 20 | 12 | 11 | 11 | 11 | 11 | 125 | 11 | 11 | 5 | 5 | 5 | 5 | 5 | 5 | 8 | 16 | 21 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 84 | 84 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 62 | 0 | 0 | 0 | 0 | 0 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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