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Surf Forecasts:
Treasure Island surfForecast / Banyak Islands / Indonesia
48hr Weather and Surf, issued 6 am Thursday 21 May 2026 WIBForecast update in hr min s Forecast update imminent
Treasure Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Treasure Island sea temperature is
30.7° C
(Which is slightly warmer than usual)How big are the waves at Treasure Island today?
The current surf forecast for Treasure Island at 3PM is: 1.1m 15s primary swell from a Southwest direction and 0.5m 6s secondary swell from a West direction, 0.4m 4s secondary swell from a North-northwest direction (forecast issued at 06:00am May 21). The wind direction is predicted to be cross-shore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 3.5ft (1.1m) | 15s |
| Afternoon (21 May) | 3.5ft (1.1m) | 15s |
| Evening (21 May) | 3.5ft (1.1m) | 15s |
Table - waves today at Treasure Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Thu morning. Warm (max 29°C on Thu morning, min 28°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | |
492 | 492 | 485 | 485 | 479 | 479 | 492 | 532 | 532 | 499 | 472 | 346 | 459 | 536 | 543 | 551 | 516 | 544 | 503 | 443 | 437 | 437 | 450 | 456 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | |
High Tide | 9:25AM0.77m | 9:55PM0.39m | 10:20AM0.70m | 11:07PM0.39m | 11:21AM0.63m | 00:33AM0.42m | ||||||||||||||||||
Low Tide | 2:12AM0.07m | 4:25PM0.12m | 3:00AM0.13m | 5:32PM0.15m | 4:03AM0.21m | 6:44PM0.17m | ||||||||||||||||||
 |  | |  | |  | | | | |  |  | | |  | | | | | | | | | | |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:20 |
 | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:34 | — | — | 6:34 |
1 | 2 | 2 | — | — | — | 1 | 1 | 2 | 1 | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | |
Temp °C | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 29 |
29 | 30 | 31 | 31 | 31 | 31 | 32 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 33 | 31 | 29 | 30 | 30 | 31 | 30 | 29 | 30 | 30 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 |
 kJ | 492 | 492 | 485 | 485 | 479 | 479 | 492 | 532 | 532 | 499 | 472 | 346 | 459 | 536 | 543 | 551 | 516 | 544 | 503 | 443 | 437 | 437 | 450 | 456 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSW 11 | W 6 | SW 18 | W 6 | S 11 | WNW 7 | W 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 |
| kJ | 24 | 25 | 19 | 80 | 20 | 22 | 35 | 34 | 37 | 38 | 40 | 40 | 43 | 62 | 63 | 48 | 48 | 49 | 51 | 53 | 53 | 48 | 31 | 46 |
Swell 3 Height (m) Direction Period (s) | W 7 | W 7 | SW 18 | SSW 12 | SSW 11 | W 15 | S 11 | NW 7 | S 11 | S 11 | S 10 | SW 17 | SSW 17 | W 15 | W 15 | NNW 8 | — | SW 13 | NW 9 | NNW 8 | W 15 | NNW 8 | NNW 8 | NNW 9 |
| kJ | 4 | 4 | 80 | 26 | 25 | 4 | 21 | 8 | 9 | 9 | 8 | 76 | 117 | 4 | 4 | 7 | — | 106 | 12 | 7 | 4 | 7 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | WNW 5 | NW 5 | NW 4 | WNW 6 | NNW 4 | WNW 6 | — | NW 4 | NW 4 | — | — | — | — | — | — | — | — | NNW 4 | — | — | — | NW 3 | WNW 8 | WNW 3 |
| kJ | 29 | 23 | 10 | 35 | 5 | 37 | — | 4 | 2 | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | 70 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 178 | 148 | 178 | 178 | 178 | 148 | 148 | 11 | 0 | 148 | 31 | 0 | 0 | 0 | 0 | 11 | 148 | 31 | 117 | 178 | 178 | 178 | 178 | 178 |
Best forecast wave conditions in Banyak Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Treasure Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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