Treasure Island surfForecast / Banyak Islands / Indonesia

information circle12 Day Weather and Surf, issued 6 am Wednesday 09 Jul 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
30.2° 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 Wednesday (Jul 09) at 4PM. The primary swell is predicted to be 0.9m and 18s period with a secondary swell of 0.7m and 12s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-shore 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 Sunday (Jul 13) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 9s period and expected on Tuesday (Jul 15) at 4AM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Wed 9th Jul)3ft (0.9m) 18s
Best Surf10PM (Wed 9th Jul)3.5ft (1.1m) 16s
Most Powerful10AM (Sun 13th Jul)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
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1
SW
0.9
SSW
1.2
SSW
1.2
SSW
1.2
SSW
1.2
SSW
1.2
SSW
1.1
SSW
1
SSW
0.6
SSW
0.7
SW
0.9
SSW
1.2
SSW
1.2
SSW
1.2
SSW
1
SW
0.9
SW
0.9
SSW
0.9
SSW
0.8
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.8
SSW
1.2
SSW
1.1
SSW
1.4
SSW
1.4
SSW
1.4
SSW
1.4
SSW
1.3
SSW
1.2
SSW
1.2
SSW
1.1
SW
Period(s) (?)131816151414141313201918181716161515141413131312181716191817161615151515
Wave
Graph
(?)Metric surfscale
Energy (?)4275847296345695735585145585106197618207386854853523924473603444334975245515231083125212471237982971786605619489
Wind
(km/h)
30
E
15
SE
10
SE
5
ENE
5
W
15
WSW
5
NNW
5
SW
10
WNW
5
ENE
10
W
10
NW
20
NW
10
W
0
NNE
10
N
10
NNW
30
W
20
WSW
15
NNW
25
NNW
10
WNW
5
WSW
10
WSW
5
NNW
10
W
10
W
10
WNW
5
W
15
W
10
WNW
15
WNW
15
W
20
WNW
20
WNW
25
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscross-
off
cross-
on
cross-
off
cross-
off
cross-
on
glasscross-
off
glasscross-
off
crosscrosscross-
off
glasscross-
on
cross-
on
cross-
off
offcrosscrosscross-
off
cross-
off
cross-
off
glasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
5:45PM
0.37
6:07AM
0.71
6:24PM
0.39
6:43AM
0.75
7:01PM
0.43
7:18AM
0.78
7:38PM
0.46
7:52AM
0.79
8:16PM
0.50
8:26AM
0.79
8:56PM
0.53
9:00AM
0.76
9:39PM
0.56
9:37AM
0.71
10:26PM
0.58
10:17AM
0.63
11:20PM
0.59
11:03AM
0.54
12:23AM
0.60
12:02PM
0.45
1:37AM
0.62
1:26PM
0.38
2:54AM
0.65
Low Tide
/ height (m)
12:24PM
0.12
11:02PM
0.09
12:56PM
0.09
11:44PM
0.07
1:28PM
0.08
12:23AM
0.06
1:59PM
0.07
1:02AM
0.07
2:30PM
0.06
1:41AM
0.09
3:01PM
0.06
2:23AM
0.12
3:33PM
0.07
3:09AM
0.16
4:06PM
0.08
4:01AM
0.21
4:41PM
0.09
5:07AM
0.25
5:23PM
0.11
6:40AM
0.27
6:13PM
0.13
8:43AM
0.26
7:20PM
0.14
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Sunrise6:28--6:28--6:28--6:28--6:28--6:28--6:28--6:28--6:28--6:28--6:28--6:30--
Sunset-6:42--6:43--6:43--6:43--6:43--6:43--6:43--6:43--6:43--6:43--6:43--6:43-
cloudpart cloudclearthunderstorm part cloudthunderstorm part cloudclearrain showersthunderstorm thunderstorm thunderstorm thunderstorm mod rainthunderstorm thunderstorm mod rainthunderstorm mod rainlight rainthunderstorm part cloudpart cloudpart cloudpart cloudpart cloudthunderstorm thunderstorm part cloudthunderstorm part cloudpart cloudrain showerspart cloudpart cloudthunderstorm
Rain (mm)
---1-4--3211818679747721-----33-3--2--2
Temp. °C272828272829282928272827252526262625262627272828282828282828282828282929
Feels °C (?)263031313231313131313130262930292925272726293130313131323231313031293030

Short Range Forecast: Light rain (total 8mm), mostly falling on Thu night. Warm (max 29°C on Thu night, min 25°C on Wed morning). Winds decreasing (fresh winds from the E on Wed morning, calm by Fri morning).

Days 3-6 Weather Summary Heavy rain (total 115mm), heaviest during Mon night. Warm (max 28°C on Sat afternoon, min 24°C on Sun morning). Winds increasing (calm on Sat morning, fresh winds from the W by Mon night).

Days 6-9 Weather Summary Moderate rain (total 13mm), heaviest on Tue morning. Warm (max 28°C on Wed afternoon, min 25°C on Tue afternoon). Winds decreasing (fresh winds from the NW on Tue night, calm by Wed night).

Long Range Forecast: Moderate rain (total 10mm), heaviest on Fri morning. Warm (max 29°C on Sun afternoon, min 27°C on Fri morning). Wind will be generally light.

  • 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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