Surf Forecasts:
How big are the waves at Thunders today (18 Sep):
- Afternoon surf: Afternoon surf (18 Sep, local time) - 5.5ft (1.7m), 16s period with SSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 5ft (1.6m), 16s period with SSW swell.
The current surf forecast for Thunders at 12AM is: 1.1m 16s primary swell from a Southwest direction and 1.3m 13s secondary swell from a South-southwest direction, 1.1m 7s secondary swell from a Southeast direction (forecast issued at 06:00pm September 17). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | - | - |
| Afternoon (18 Sep) | 5.5ft (1.7m) | 16s |
| Evening (18 Sep) | 5ft (1.6m) | 16s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 28mm), heaviest during Sat night. Warm (max 27°C on Thu afternoon, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 13 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 1379 | 1379 | 1241 | 587 | 536 | 893 | 869 | 796 | 691 | 682 | 672 | 663 | 663 | 1974 | 2238 | 1717 | 1938 | 2468 | 2349 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:45PM0.81m | 9:31AM0.48m | 10:29PM0.74m | 9:59AM0.41m | |||||||||||||||
Low Tide | 2:47PM0.13m | 4:15AM0.26m | 3:13PM0.18m | 5:17AM0.32m | 3:44PM0.24m | ||||||||||||||
 |  | | | |  | | | |  | |  | | | |  | |  | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | — | — | — | — | — | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 3 | 3 | 1 | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 26 | 26 |
Feels °C | 28 | 28 | 29 | 29 | 29 | 29 | 27 | 27 | 27 | 27 | 28 | 28 | 26 | 26 | 27 | 27 | 27 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 13 | SSW 13 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 |
| kJ | 1379 | 1379 | 1241 | 536 | 536 | 893 | 869 | 796 | 691 | 682 | 672 | 663 | 663 | 1974 | 2238 | 1717 | 1938 | 2468 | 2349 |
Swell 2 Height (m) Direction Period (s) | WNW 10 | SSE 7 | SSE 7 | SW 16 | SW 16 | WNW 9 | WNW 9 | WNW 9 | SW 20 | SW 19 | SW 18 | SW 18 | SW 18 | WNW 8 | WNW 8 | SW 13 | SW 13 | WNW 8 | WNW 8 |
| kJ | 33 | 73 | 73 | 587 | 302 | 26 | 26 | 25 | 136 | 179 | 388 | 465 | 621 | 13 | 13 | 517 | 394 | 12 | 12 |
Swell 3 Height (m) Direction Period (s) | W 14 | WNW 10 | WNW 9 | SSE 7 | WNW 9 | SSW 21 | SW 20 | SW 20 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 15 | W 15 | WNW 8 | WNW 8 | W 15 | W 15 |
| kJ | 4 | 31 | 29 | 53 | 27 | 42 | 99 | 98 | 24 | 23 | 14 | 13 | 14 | 4 | 4 | 13 | 12 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | SSE 7 | — | — | SE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SSE 6 |
| kJ | 73 | — | — | 106 | 53 | 70 | 70 | 83 | 73 | 71 | 71 | 68 | 71 | 71 | 66 | 77 | 77 | 77 | 74 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 62 | 3 | 3 | 3 | 3 | 3 | 62 | 62 | 62 | 233 | 32 | 173 | 168 | 168 | 168 | 649 | 538 | 475 | 475 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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