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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 6 am Wednesday 29 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
30.4° C
(Which is slightly warmer than usual)How big are the waves at Thunders today?
The current surf forecast for Thunders at 9AM is: 1.2m 17s primary swell from a South-southwest direction and 1.1m 12s secondary swell from a South direction (forecast issued at 06:00am April 29). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Apr) | 4ft (1.2m) | 17s |
| Afternoon (29 Apr) | 4.5ft (1.4m) | 16s |
| Evening (29 Apr) | 5ft (1.6m) | 16s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 33mm), heaviest during Wed night. Warm (max 29°C on Wed morning, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 1 | Sat 2 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | |
817 | 908 | 827 | 927 | 1123 | 1331 | 1265 | 1184 | 1021 | 951 | 939 | 1204 | 636 | 1003 | 1147 | 1074 | 911 | 930 | 961 | 947 | 790 | 790 | 790 | 733 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | on | on | cross-on | glassy | off | off | off | glassy | glassy | cross | cross | cross-on | glassy | glassy | cross | cross | glassy | glassy | glassy | glassy | glassy | |
High Tide | 4:43AM0.85m | 4:50PM0.71m | 5:16AM0.92m | 5:29PM0.69m | 5:47AM0.96m | 6:04PM0.66m | ||||||||||||||||||
Low Tide | 11:07AM0.20m | 10:45PM0.15m | 11:45AM0.15m | 11:12PM0.13m | 12:19PM0.11m | 11:38PM0.11m | ||||||||||||||||||
 |  | | | |  |  | | | |  |  | | | | | | |  | | | | | | |
 | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | 6:16 |
 | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | 6:15 |
— | 1 | 2 | 1 | 1 | 2 | 6 | 6 | 1 | 1 | — | — | — | 1 | — | 3 | 3 | 1 | — | — | — | 1 | 1 | 1 | |
Temp °C | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 25 | 26 | 26 | 26 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 29 | 28 | 28 | 27 | 27 |
32 | 32 | 32 | 33 | 34 | 32 | 33 | 27 | 29 | 30 | 30 | 33 | 32 | 31 | 32 | 32 | 32 | 30 | 30 | 34 | 32 | 33 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | S 13 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 490 | 908 | 827 | 927 | 1123 | 1331 | 1265 | 1184 | 1021 | 951 | 939 | 1204 | 621 | 1003 | 1147 | 1074 | 911 | 930 | 961 | 947 | 790 | 790 | 790 | 733 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | S 12 | S 12 | S 12 | S 12 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | W 16 | SSW 16 | SW 14 | SW 15 | SW 15 | SW 15 | W 16 | W 15 | SSE 7 | W 14 | W 14 | W 14 | W 14 |
| kJ | 817 | 356 | 273 | 276 | 210 | 206 | 251 | 206 | 159 | 198 | 107 | 5 | 636 | 341 | 104 | 75 | 33 | 5 | 4 | 29 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 13 | SW 13 | SW 14 | W 18 | W 18 | W 18 | W 18 | W 18 | SW 14 | W 16 | W 16 | W 16 | W 16 | W 16 | W 16 | — | — | — | — | — | — | — |
| kJ | 154 | 111 | 63 | 88 | 66 | 6 | 6 | 6 | 6 | 6 | 132 | 5 | 5 | 5 | 5 | 20 | 20 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 3 | 3 | 3 | 32 | 84 | 84 | 0 | 0 | 0 | 0 | 0 | 0 | 84 | 84 | 233 | 0 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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