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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Friday 22 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
30.3° C
(Which is slightly warmer than usual)How big are the waves at Thunders today?
The current surf forecast for Thunders at 11PM is: 1.4m 15s primary swell from a Southwest direction and 0.5m 6s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 22). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | - | - |
| Afternoon (22 May) | 4.5ft (1.4m) | 15s |
| Evening (22 May) | 4.5ft (1.4m) | 15s |
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 Fri night. Warm (max 29°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 22 | Saturday 23 | Sunday 24 | Mon 25 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SSW 13 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 12 | SW 12 | SW 15 | SSW 15 | SSW 12 | |
773 | 784 | 805 | 838 | 701 | 595 | 604 | 711 | 742 | 644 | 540 | 479 | 465 | 394 | 394 | 394 | 336 | 326 | 264 | 184 | 147 | 144 | 154 | 187 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 11:03PM0.56m | 11:03AM0.84m | 00:20AM0.61m | 12:08PM0.75m | 1:34AM0.67m | |||||||||||||||||||
Low Tide | 5:02PM0.14m | 4:11AM0.27m | 6:01PM0.18m | 5:39AM0.34m | 6:58PM0.20m | 7:26AM0.37m | ||||||||||||||||||
 |  |  |  | |  | | | | | | | | |  | | | | | | | | |  | |
 | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — |
 | 6:14 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | 6:14 |
— | — | — | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 4 | 3 | 1 | — | — | — | — | — | — | 1 | 1 | 1 | — | — | |
Temp °C | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 29 |
32 | 32 | 31 | 31 | 31 | 31 | 32 | 33 | 32 | 31 | 31 | 30 | 31 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 30 | 30 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SW 14 | SSW 13 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 12 | SW 12 | WNW 9 | WNW 9 | SSW 12 |
 kJ | 773 | 784 | 805 | 838 | 701 | 595 | 604 | 711 | 742 | 644 | 540 | 479 | 465 | 394 | 394 | 394 | 336 | 326 | 264 | 184 | 147 | 70 | 70 | 187 |
Swell 2 Height (m) Direction Period (s) | S 9 | WNW 6 | WNW 6 | WNW 6 | S 8 | S 8 | S 8 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | S 8 | S 8 | SSE 8 | S 9 | WNW 8 | SW 12 | SW 12 | WNW 9 |
| kJ | 76 | 20 | 18 | 24 | 47 | 33 | 32 | 21 | 35 | 37 | 37 | 36 | 36 | 37 | 39 | 45 | 21 | 21 | 20 | 39 | 61 | 144 | 144 | 90 |
Swell 3 Height (m) Direction Period (s) | NW 7 | S 10 | S 8 | S 8 | WNW 7 | WNW 7 | WNW 7 | S 8 | W 14 | SE 8 | S 8 | SE 8 | SE 8 | S 7 | S 8 | S 9 | SW 18 | SSW 18 | SW 18 | SW 15 | S 9 | SW 15 | SSW 15 | SSW 16 |
| kJ | 11 | 52 | 49 | 47 | 27 | 29 | 30 | 32 | 4 | 2 | 19 | 2 | 2 | 17 | 19 | 24 | 13 | 31 | 49 | 54 | 40 | 139 | 154 | 175 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 | NNW 4 | NNW 4 | NNW 4 | NNW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 23 | 59 | 67 | 84 | 73 | 6 | 6 | 6 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 84 | 84 | 40 | 40 | 31 | 0 | 84 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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