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Surf Forecasts:
Thunders surfForecast / Mentawi Islands / Indonesia
48hr Weather and Surf, issued 12 pm Thursday 30 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
30.1° C
(Which is slightly warmer than usual)How big are the waves at Thunders today?
The current surf forecast for Thunders at 8PM is: 1.5m 16s primary swell from a South-southwest direction and 0.8m 14s secondary swell from a Southwest direction (forecast issued at 12:00pm April 30). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 5ft (1.5m) | 14s |
| Afternoon (30 Apr) | 4.5ft (1.4m) | 14s |
| Evening (30 Apr) | 5ft (1.6m) | 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 20mm), heaviest during Fri night. Warm (max 29°C on Fri morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
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 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | |
862 | 1204 | 636 | 1003 | 1147 | 1074 | 911 | 930 | 854 | 841 | 829 | 790 | 790 | 693 | 693 | 683 | 569 | 551 | 408 | 402 | 341 | 341 | 330 | 426 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross-off | cross-on | glassy | cross-on | glassy | glassy | glassy | on | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | glassy | glassy | cross-off | cross-off | cross-off | cross-off | glassy | glassy | |
High Tide | 5:29PM0.69m | 5:47AM0.96m | 6:04PM0.66m | 6:17AM0.98m | 6:38PM0.63m | 6:47AM0.98m | ||||||||||||||||||
Low Tide | 11:12PM0.13m | 12:19PM0.11m | 11:38PM0.11m | 12:51PM0.08m | 00:05AM0.10m | |||||||||||||||||||
 | |  |  |  | |  | | | |  | | | | |  | | | | | | | | | |
 | 6:16 | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — |
 | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | 6:15 |
2 | 1 | — | 1 | — | — | — | — | — | — | — | — | 4 | 3 | 1 | — | — | — | — | 1 | 1 | — | 4 | 2 | |
Temp °C | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 29 | 29 | 29 | 28 | 28 | 25 | 25 | 25 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 27 |
33 | 31 | 32 | 33 | 33 | 31 | 32 | 31 | 33 | 33 | 32 | 31 | 32 | 28 | 29 | 29 | 32 | 33 | 32 | 30 | 31 | 31 | 30 | 31 | |
Swell 1 Height (m) Direction Period (s) | 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 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
 kJ | 862 | 1204 | 621 | 1003 | 1147 | 1074 | 911 | 930 | 854 | 841 | 829 | 790 | 790 | 693 | 693 | 683 | 569 | 551 | 408 | 402 | 341 | 341 | 330 | 426 |
Swell 2 Height (m) Direction Period (s) | S 8 | W 16 | SSW 16 | SW 14 | SW 15 | SW 15 | SW 15 | W 16 | W 15 | W 14 | W 14 | W 14 | W 14 | W 14 | S 18 | S 18 | SSW 18 | SSW 17 | S 8 | S 8 | S 7 | S 7 | SSW 15 | SSW 15 |
| kJ | 33 | 5 | 636 | 341 | 104 | 75 | 33 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 25 | 25 | 61 | 99 | 61 | 57 | 51 | 48 | 228 | 225 |
Swell 3 Height (m) Direction Period (s) | SW 15 | W 16 | W 16 | W 16 | W 16 | W 16 | W 16 | — | — | — | — | — | — | — | W 14 | W 14 | W 14 | W 13 | S 16 | S 16 | S 16 | S 16 | S 7 | W 13 |
| kJ | 107 | 5 | 5 | 5 | 5 | 20 | 20 | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 | 134 | 132 | 131 | 177 | 35 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 3 | NE 3 | NE 3 | NE 3 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | 4 | 3 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 84 | 0 | 3 | 0 | 3 | 0 | 0 | 0 | 62 | 84 | 233 | 0 | 0 | 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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