Surf Forecasts:
How big are the waves at Thunders today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 6ft (1.9m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 7ft (2.1m), 16s period with SSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 8ft (2.5m), 19s period with SSW swell.
The current surf forecast for Thunders at 3AM is: 1.4m 17s primary swell from a South-southwest direction and 1.2m 21s secondary swell from a South-southwest direction, 0.9m 10s secondary swell from a South-southeast direction (forecast issued at 06:00pm August 17). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 6ft (1.9m) | 16s |
| Afternoon (18 Aug) | 7ft (2.1m) | 16s |
| Evening (18 Aug) | 8ft (2.5m) | 19s |
Table - waves today at Thunders. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 28°C on Mon afternoon, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 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) | S 13 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 590 | 609 | 777 | 1106 | 1330 | 2507 | 1626 | 2402 | 2080 | 5045 | 5329 | 5273 | 4946 | 4777 | 5516 | 5392 | 5818 | 5685 | 5553 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | on | on |
High Tide | 9:20PM0.89m | 9:15AM0.71m | 9:58PM0.86m | 9:45AM0.60m | |||||||||||||||
Low Tide | 2:46PM0.06m | 3:24AM0.20m | 3:11PM0.09m | 4:08AM0.25m | 3:37PM0.13m | ||||||||||||||
 |  |  |  | |  | | | | | | | | |  | | | | | |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 27 |
Feels °C | 29 | 29 | 30 | 30 | 30 | 29 | 30 | 29 | 30 | 29 | 30 | 28 | 28 | 29 | 30 | 29 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 |
| kJ | 590 | 609 | 600 | 1106 | 1330 | 2507 | 1626 | 2402 | 2080 | 5045 | 5329 | 5273 | 4946 | 4777 | 5516 | 5392 | 5818 | 5685 | 5553 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SSW 18 | S 13 | SSW 21 | SW 21 | SSW 20 | SW 20 | SSW 19 | S 9 | S 9 | WNW 11 | — | W 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
| kJ | 406 | 609 | 777 | 609 | 1199 | 548 | 1484 | 918 | 1719 | 14 | 13 | 12 | — | 18 | 17 | 10 | 18 | 10 | 19 |
Swell 3 Height (m) Direction Period (s) | SW 23 | SW 23 | SW 22 | SW 22 | SW 13 | WNW 8 | WNW 8 | WNW 8 | W 22 | — | — | — | — | — | — | — | — | — | — |
| kJ | 140 | 255 | 476 | 906 | 171 | 13 | 13 | 14 | 9 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 13 | — | — | SSE 10 | — | SSE 6 | SSE 5 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 10 | SW 10 | SW 8 | SW 8 | SW 8 |
| kJ | — | 511 | — | — | 160 | — | 34 | 30 | 44 | 34 | 35 | 34 | 43 | 43 | 58 | 45 | 31 | 32 | 31 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 135 | 168 | 32 | 3 | 9 | 127 | 168 | 62 | 62 | 168 | 3 | 3 | 168 | 62 | 62 | 62 | 62 | 62 | 168 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||
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