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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 pm Monday 27 Apr 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 11PM is: 1.2m 12s primary swell from a South-southwest direction and 0.7m 16s secondary swell from a South direction (forecast issued at 06:00pm April 27). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | - | - |
| Afternoon (27 Apr) | 4.5ft (1.3m) | 13s |
| Evening (27 Apr) | 4ft (1.2m) | 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 19mm), heaviest on Tue night. Warm (max 29°C on Mon afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thu 30 | |||||||||||||||||||||
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 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 15 | S 14 | SSW 20 | SSW 14 | S 13 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | |
581 | 572 | 461 | 379 | 373 | 365 | 610 | 412 | 596 | 591 | 716 | 826 | 817 | 908 | 827 | 927 | 1123 | 1331 | 1265 | 1049 | 1021 | 980 | 862 | 1204 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | cross-off | cross-off | off | off | glassy | cross-off | off | glassy | |
High Tide | 3:13PM0.73m | 4:06AM0.77m | 4:06PM0.72m | 4:43AM0.85m | 4:50PM0.71m | 5:16AM0.92m | ||||||||||||||||||
Low Tide | 9:45PM0.18m | 10:21AM0.26m | 10:17PM0.16m | 11:07AM0.20m | 10:45PM0.15m | 11:45AM0.15m | ||||||||||||||||||
 |  | | | |  |  | | | | |  | |  | | | | | | | | | | | |
 | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — |
 | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | 6:15 |
— | — | — | — | — | 1 | — | 1 | 1 | — | — | 1 | 4 | — | — | 1 | 1 | 1 | 4 | 1 | 2 | 1 | — | — | |
Temp °C | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 29 |
32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 34 | 32 | 32 | 30 | 32 | 33 | 32 | 32 | 33 | 32 | 31 | 32 | 31 | 32 | 33 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | S 14 | SSW 14 | SSW 14 | S 13 | S 13 | S 13 | S 13 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 581 | 572 | 461 | 379 | 373 | 213 | 610 | 341 | 596 | 591 | 490 | 483 | 490 | 908 | 827 | 927 | 1123 | 1331 | 1265 | 1049 | 1021 | 980 | 862 | 1204 |
Swell 2 Height (m) Direction Period (s) | S 17 | S 16 | S 16 | S 16 | S 16 | SSW 15 | SSW 12 | SSW 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 18 | S 12 | S 12 | S 12 | S 12 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | W 16 |
| kJ | 215 | 264 | 251 | 322 | 310 | 365 | 55 | 199 | 403 | 507 | 716 | 826 | 817 | 420 | 273 | 276 | 213 | 206 | 251 | 206 | 159 | 198 | 107 | 5 |
Swell 3 Height (m) Direction Period (s) | WSW 17 | SW 17 | SSW 21 | SE 8 | SE 8 | SE 8 | S 21 | SSW 20 | SSE 10 | SW 15 | SW 15 | SW 18 | SW 18 | SW 18 | SW 13 | SW 13 | SW 14 | W 18 | W 18 | W 18 | W 18 | W 18 | S 8 | — |
| kJ | 29 | 11 | 45 | 11 | 17 | 16 | 233 | 412 | 77 | 75 | 76 | 155 | 154 | 111 | 63 | 88 | 66 | 6 | 6 | 6 | 6 | 6 | 31 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 8 | SE 8 | SE 7 | SSE 4 | — | — | ESE 7 | — | — | — | — | — | — | — | — | N 3 | N 4 | — |
| kJ | — | — | — | — | — | — | 21 | 21 | 27 | 3 | — | — | 5 | — | — | — | — | — | — | — | — | 4 | 4 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 538 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 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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