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Surf Forecasts:

Treasure Island surfForecast / Banyak Islands / Indonesia

information circle12 Day Weather and Surf, issued 6 pm Saturday 17 Jan 2026 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
29.8° 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 Sunday (Jan 18) at 1AM. The primary swell is predicted to be 0.7m and 15s period with a secondary swell of 0.6m and 11s. 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 18s and forecast to arrive on Monday (Jan 19) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 5s period and expected on Sunday (Jan 18) at 10PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 18th Jan)2.5ft (0.7m) 15s
Best Surf10PM (Sun 18th Jan)3.5ft (1.1m) 18s
Most Powerful 1AM (Mon 19th Jan)4ft (1.2m) 18s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 2mm), mostly falling on Sat night. Warm (max 28°C on Sat afternoon, min 27°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Tue afternoon, min 26°C on Thu morning). Wind will be generally light.

Sat
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
2
0
2
3
2
2
2
0
1
0
0
1
1
0
2
1
1
2
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
SW
0.7
SW
0.7
SSW
0.8
SSW
1.2
SSW
1
SSW
1
SSW
1
SSW
0.9
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.6
SSW
0.8
SSW
0.8
SSW
0.9
SSW
1
SSW
1
SSW
0.9
SSW
0.8
SSW
Period(s) (?)121519141816161614141414131817161514141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)184242329268817539519506357253250232192266399341322389378249189
Wind
(km/h)
15
WNW
10
WNW
10
N
15
WNW
15
WNW
10
WNW
15
WNW
15
WNW
15
N
10
NW
15
NW
15
NNE
5
NW
10
NW
15
NNE
10
WNW
10
NW
10
NNE
10
SW
5
NNW
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		crosscrosscross-
on		crosscrossoncross-
off		crosscross-
on		offcross-
on		on
High Tide
/ height (m)
6:04PM
0.70
6:22AM
0.40
6:37PM
0.74
6:55AM
0.44
7:09PM
0.78
7:27AM
0.48
7:38PM
0.79
7:59AM
0.52
8:08PM
0.79
8:33AM
0.56
8:37PM
0.77
9:09AM
0.59
9:08PM
0.72
9:49AM
0.60
Low Tide
/ height (m)
12:54AM
0.09
11:42AM
0.08
1:19AM
0.07
12:18PM
0.06
1:45AM
0.06
12:54PM
0.06
2:11AM
0.05
1:29PM
0.07
2:36AM
0.05
2:05PM
0.10
3:03AM
0.05
2:44PM
0.13
3:30AM
0.06
Sat
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise--6:39--6:39--6:39--6:41--6:41--6:41--6:41
Sunset6:39--6:40--6:40--6:40--6:42--6:42--6:42--
clear
rain showers
clear
clear
part cloud
part cloud
clear
rain showers
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
Rain (mm)
-1-----1-------------
Temp. °C282827282828282827282827272826272726272827
Feels °C (?)293029303130293029292929303128302929293231
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

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Quick surf report for Treasure Island:

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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.

View detailed surf forecast for Treasure Island at:
surf-forecast.com

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.

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