Treasure Island surfForecast / Banyak Islands / Indonesia

information circle12 Day Weather and Surf, issued 6 am Monday 19 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 Tuesday (Jan 20) at 4AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.6m and 8s. 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 1.0m 16s and forecast to arrive on Monday (Jan 19) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Tuesday (Jan 20) at 4AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Tue 20th Jan)3ft (0.9m) 16s
Best Surf 4AM (Tue 20th Jan)3ft (0.9m) 16s
Most Powerful 4PM (Mon 19th Jan)3.5ft (1.0m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 28°C on Mon morning, min 26°C on Wed morning). Wind will be generally light.

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

Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
1
0
1
1
1
2
2
1
2
2
2
2
1
2
2
1
1
2
1
Swell
Height Map
Wave Height (m) & direction (?)
1
SSW
1
SSW
1
SSW
0.9
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.7
SW
0.6
SSW
0.8
SSW
0.8
SSW
0.9
SSW
1
SSW
1
SSW
1
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.7
SSW
0.7
SSW
0.4
SSW
Period(s) (?)161616141414141318171615141414131312121217
Wave
Graph
(?)Metric surfscale
Energy kJ (?)539519506357253250236172266399341397389378373249246175125123113
Wind
(km/h)
10
NW
20
WNW
20
WNW
15
N
10
NW
15
NW
10
NNE
5
W
5
NNW
5
NE
10
WSW
5
N
5
ENE
5
NNE
5
NNW
5
NNW
15
W
5
WNW
5
NNE
10
SSW
5
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
cross-
on
crosscrossoncross-
off
glassonoffglassglassglasscrossglasscross-
off
glassglassoffglass
High Tide
/ height (m)
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
9:41PM
0.65
10:34AM
0.61
10:18PM
0.56
Low Tide
/ height (m)
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
3:27PM
0.17
4:00AM
0.07
4:18PM
0.22
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Sunrise6:39--6:39--6:41--6:41--6:41--6:41--6:41--
Sunset-6:40--6:40--6:42--6:42--6:42--6:43--6:43-
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
Rain (mm)
---------------------
Temp. °C282828272828272828262827262728272727272827
Feels °C (?)302829293130313132303130303130312931313130
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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