Treasure Island Surf Forecast

/ Banyak Islands (4 surf breaks) /

Indonesia (169 surf breaks)

Surf Forecasts:

Treasure Island surfForecast / Banyak Islands / Indonesia

12 Day Weather and Surf, issued 6 pm Monday 17 Nov 2025 WIB

Forecast 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 29.3° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Treasure Island this week:

The surf forecast for Treasure Island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Nov 20) at 7AM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.7m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Treasure Island in the next 12 days are 1.2m 14s and forecast to arrive on Monday (Nov 17) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Sunday (Nov 23) at 4PM.

Wave Type	Time (WIB) & Date	Wave Height & Period
Next good surf (1 star+)	7AM (Thu 20th Nov)	2ft (0.6m) 16s
Best Surf	7AM (Thu 20th Nov)	2ft (0.6m) 16s
Most Powerful	10PM (Mon 17th Nov)	4ft (1.2m) 14s

Table - best surf conditions forecast for Treasure Island over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 166mm), heaviest during Tue morning. Warm (max 27°C on Wed night, min 24°C on Tue morning). Mainly fresh winds.											Days 3-6 Weather Summary Heavy rain (total 84mm), heaviest during Fri afternoon. Warm (max 28°C on Thu afternoon, min 24°C on Fri afternoon). Winds increasing (light winds from the W on Thu night, fresh winds from the W by Fri afternoon).
	Mon 17		Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	2	1	1	1	0	1	1	0	2	2	2	2	2	1	1	1	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SW	SSW	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SSW
Period(s) (?)	14	14	13	13	13	13	12	16	16	16	15	14	14	14	13	13	12	12	12	11	12
Wave Graph (?)
kJ (?)	561	469	309	304	219	167	157	211	206	203	301	350	261	178	336	331	220	169	144	104	90
Wind (km/h)	WSW	W	W	WNW	NW	WNW	WNW	WNW	WNW	WNW	W	W	WSW	NW	WNW	WNW	WNW	NW	NW	NW	NNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross	cross	cross	cross
High Tide / height (m)	4:54PM 0.68		4:57AM 0.50	5:23PM 0.72		5:32AM 0.49	5:53PM 0.74		6:04AM 0.47	6:23PM 0.75		6:35AM 0.45	6:53PM 0.74		7:05AM 0.43		7:25PM 0.73	7:35AM 0.41		7:57PM 0.71	8:06AM 0.40
Low Tide / height (m)		11:26PM 0.15	10:43AM 0.10		11:56PM 0.12	11:08AM 0.07		12:25AM 0.08	11:34AM 0.05		12:54AM 0.07	12:01PM 0.04		1:24AM 0.06	12:30PM 0.04		1:56AM 0.08	12:59PM 0.05		2:30AM 0.10

	Mon 17		Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23
Sunrise	-	-	6:13	-	-	6:15	-	-	6:15	-	-	6:15	-	-	6:15	-	-	6:16	-	-	6:16
Sunset	6:15	-	-	6:15	-	-	6:15	-	-	6:15	-	-	6:15	-	-	6:15	-	-	6:16	-	-

Rain (mm)	9	44	53	16	18	3	4	16	3	2	7	4	35	23	-	1	11	1	1	14	7
Temp. °C	26	26	25	25	25	26	26	27	27	28	27	26	25	25	26	26	27	27	28	27	26
Feels °C (?)	28	26	27	26	25	27	27	27	30	30	30	28	25	25	27	26	27	29	28	27	29

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Quick surf report for Treasure Island:

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Information about the Treasure Island Surf forecast

The above surf forecast table for Treasure Island provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Treasure Island can be found by selecting the local surf guide option on the grey menu. Our Treasure Island surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Treasure Island) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Treasure Island may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Banyak Islands? If you are looking for accommodation near Treasure Island, camping, hotels and holiday cottages in Banyak Islands, consider staying in Afia which is 86 km (53 miles) away.