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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Friday 29 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 (30 May):
- Morning surf: Morning surf (30 May, local time) - 5.5ft (1.7m), 13s period with SSW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 5ft (1.6m), 13s period with SSW swell.
- Evening surf: Evening surf (30 May, local time) - 5ft (1.5m), 12s period with SSW swell.
The current surf forecast for Thunders at 12AM is: 1.8m 14s primary swell from a South-southwest direction and 0.4m 8s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 29). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 5.5ft (1.7m) | 13s |
| Afternoon (30 May) | 5ft (1.6m) | 13s |
| Evening (30 May) | 5ft (1.5m) | 12s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 29°C on Sat morning, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 16 | SSW 15 | SW 15 | SSW 15 | |
1582 | 1408 | 1295 | 1186 | 1061 | 987 | 987 | 987 | 824 | 787 | 657 | 647 | 636 | 598 | 598 | 589 | 508 | 500 | 454 | 385 | 402 | 393 | 496 | 576 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | on | on | glassy | glassy | glassy | glassy | cross-on | on | on | glassy | glassy | glassy | glassy | glassy | glassy | on | |
High Tide | 5:02PM0.55m | 5:17AM0.93m | 5:42PM0.54m | 5:51AM0.95m | 6:19PM0.53m | 6:26AM0.95m | ||||||||||||||||||
Low Tide | 10:24PM0.17m | 12:07PM0.13m | 10:58PM0.15m | 12:40PM0.10m | 11:33PM0.14m | |||||||||||||||||||
 |  | |  | |  | | | | | |  | | | | | | | | | |  | | | |
 | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — |
 | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | 6:15 |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 27 | 27 | 27 | 26 | 26 | 28 | 29 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 28 | 29 |
33 | 31 | 32 | 32 | 31 | 30 | 32 | 33 | 32 | 32 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 31 | 32 | 30 | 30 | 30 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 15 |
 kJ | 1582 | 1408 | 1295 | 1186 | 1061 | 987 | 987 | 987 | 824 | 787 | 657 | 647 | 636 | 598 | 598 | 589 | 508 | 500 | 454 | 385 | 372 | 285 | 280 | 576 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SW 15 | SSW 11 |
| kJ | 20 | 20 | 20 | 12 | 20 | 12 | 12 | 13 | 13 | 13 | 22 | 26 | 26 | 26 | 26 | 25 | 115 | 179 | 232 | 330 | 402 | 393 | 496 | 270 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 7 | SSE 7 | SSW 18 | SSW 18 | SSW 18 | SW 18 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 5 | 5 | 31 | 61 | 62 | 79 | 21 | 21 | 21 | 21 | 21 | 12 | 12 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 135 | 3 | 0 | 0 | 0 | 0 | 3 | 32 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 62 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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