Treasure Island surfForecast / Banyak Islands / Indonesia

information circle48hr Weather and Surf, issued 6 am Thursday 21 May 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
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) & DateWave HeightWave 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 Forecast

Moderate 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
Rating
(10 max)
0
0
0
0
0
1
1
1
2
1
1
2
2
2
2
1
1
0
0
1
0
1
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
16
1.1
SW
16
1.1
SW
15
1.1
SW
15
0.9
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
14
Wave Graph
Metric surfscale
Energy 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
Wind (km/h)
20
NW
20
NW
20
NW
20
NW
20
NW
20
WNW
15
WNW
15
WNW
10
WNW
10
NW
10
NW
15
WNW
10
WNW
15
W
10
W
10
NW
15
NW
15
NNW
15
N
10
NW
20
NW
20
WNW
20
WNW
25
WNW
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
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
clear
part cloud
clear
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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)
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
16
1.1
SW
16
1.1
SW
15
1.1
SW
15
0.9
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
14
1.1
SW
14
Energy 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)
0.3
SSW
11
0.3
SSW
11
0.5
W
6
0.4
SW
18
0.5
W
6
0.3
S
11
0.6
WNW
7
0.6
W
7
0.6
WNW
7
0.6
WNW
7
0.6
WNW
7
0.6
WNW
7
0.6
WNW
7
0.7
WNW
8
0.7
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
W
8
0.5
W
8
0.6
W
8
Energy 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)
0.2
W
7
0.2
W
7
0.4
SW
18
0.3
SSW
12
0.3
SSW
11
0.1
W
15
0.3
S
11
0.3
NW
7
0.2
S
11
0.2
S
11
0.2
S
10
0.4
SW
17
0.4
SSW
17
0.1
W
15
0.1
W
15
0.2
NNW
8
0.6
SW
13
0.3
NW
9
0.2
NNW
8
0.1
W
15
0.2
NNW
8
0.2
NNW
8
0.2
NNW
9
Energy 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)
0.8
WNW
5
0.7
NW
5
0.5
NW
4
0.7
WNW
6
0.4
NNW
4
0.7
WNW
6
0.4
NW
4
0.3
NW
4
0.2
NNW
4
0.3
NW
3
0.7
WNW
8
0.4
WNW
3
Energy kJ
29
23
10
35
5
37
4
2
1
1
70
4
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
2
3
3
2
2
3
3
2
2
2
2
2
3
3
3
2
2
2
2
2
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
Rating
(10 max)
2
2
3
2
2
2
2
2
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
3
4
4
3
3
3
4
4
4
4
4
3
3
4
4
4
3
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
5
5
5
5
5
5
4
5
4
4
5
7
8
7
6
5
5
6
7
7
8
8
7
6
  • 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

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