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Treasure Island surfForecast / Banyak Islands / Indonesia
48hr Weather and Surf, issued 12 pm Wednesday 13 Aug 2025 WIB
How big are the waves at Treasure Island today?
The current surf forecast for Treasure Island at 2PM is: 4ft 14s primary swell from a South-southwest direction and 2ft 16s secondary swell from a Southwest direction (forecast issued at 12:00pm August 13). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 4.5ft (1.3m) | 14s |
| Afternoon (13 Aug) | 4ft (1.2m) | 14s |
| Evening (13 Aug) | 3.5ft (1.1m) | 13s |
Table - waves today at Treasure Island. (Swell directed towards the surf break)
Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 12 | 13 | 13 | 13 | 13 | 18 | 18 | 18 | 18 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 768 | 700 | 580 | 538 | 521 | 521 | 518 | 500 | 496 | 460 | 372 | 642 | 599 | 323 | 391 | 329 | 364 | 363 | 421 | 379 | 266 | 213 | 189 | 182 |
Wind (mph) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | glass | glass | glass | glass | glass | on | glass | glass | cross- off | cross- off | off | glass | cross- on | cross- on | glass | glass | cross- off | cross- off | cross- off | cross- off | cross | on |
High Tide / height (ft) | 9:11PM 2.2 | 9:10AM 2.2 | 9:53PM 2.2 | 9:46AM 1.87 | 10:42PM 2.13 | |||||||||||||||||||
Low Tide / height (ft) | 2:51PM 0.07 | 3:01AM 0.39 | 3:20PM 0.13 | 3:50AM 0.56 | 3:50PM 0.2 | 4:50AM 0.72 | ||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:28 |
| Sunset | - | - | 6:40 | - | - | - | - | - | - | - | 6:40 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - |
 |  | |  |  |  | | | | | | |  | | | | | | | | | | | | |
Rain (in) | - | - | - | - | - | - | - | - | - | - | - | - | 0.1 | 0.1 | - | - | - | - | - | - | 0.1 | 0.2 | 0.0 | - |
| Temp. °F | 81 | 81 | 82 | 82 | 82 | 82 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 81 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 81 | 81 | 81 |
| Feels °F (?) | 88 | 88 | 88 | 88 | 90 | 90 | 88 | 86 | 88 | 90 | 88 | 88 | 90 | 88 | 86 | 86 | 88 | 88 | 88 | 84 | 86 | 84 | 86 | 88 |
Hourly Weather Summary
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Recent Eyeball Surf Reports for Banyak Islands
Wind reports 134 miles away suggest it is still onshore at Treasure Island (light winds from the NNE at Medan/Polonia Airport). 3ft 14s groundswell from the SSW with a 1ft 17s long period groundswell from the SW. 2 swells combining to make bigger set waves.
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