Green island Surf Break

Lat Long: 22.03° N 121.53° E

Green island Surf Forecast and Surf Report

Issued: 1 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Green island sea temperature is
29.0°C
0.1° 

Green island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Green island surf forecast from 27 Aug 2026:

  • Best quality surf: Sunday 30 Aug, 5AM (local time) - 5ft (1.6m), 9s period, SW swell with glassy winds.
  • Most powerful swell: Thursday 3 Sep, 5AM (local time) - 7.5ft (2.3m), 10s period, SW swell with 1,039 kJ wave energy.
  • Next surfable swell (1★+): Sunday 30 Aug, 5AM (local time) - 5ft (1.6m), 9s period with SW swell.

Best Forecast Surf Conditions for Green island this week:

The surf forecast for Green island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 30) at 5AM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.5m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Green island in the next 16 days are 2.3m 10s and forecast to arrive on Thursday (Sep 03) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 9s period and expected on Thursday (Sep 03) at 5AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 30th Aug)5ft (1.6m) 9s
Best Surf 5AM (Sun 30th Aug)5ft (1.6m) 9s
Most Powerful 5AM (Thu 3rd Sep)7.5ft (2.3m) 10s

Table - best surf conditions forecast for Green island over the next 16 days.


Short Range Forecast

Light rain (total 7mm), mostly falling on Fri night. Warm (max 29°C on Thu afternoon, min 28°C on Thu afternoon). Winds decreasing (near gales from the WSW on Thu afternoon, calm by Sat night).

Days 5-7 Weather Summary

Heavy rain (total 91mm), heaviest during Tue night. Warm (max 29°C on Sun afternoon, min 26°C on Tue afternoon). Winds increasing (light winds from the E on Sun afternoon, strong winds from the NE by Wed morning).

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
1
0
2
2
3
1
1
3
2
1
1
0
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
SW
8
2.3
SW
8
2.4
SW
8
2.3
SW
8
1.7
SW
8
2
SW
9
1.7
SSW
9
1.7
SSW
9
1.5
SW
9
1.7
SW
10
1.5
SW
10
1.4
SW
9
1.5
ENE
11
1.5
ENE
10
1.5
ENE
10
1.4
SW
9
1.8
SW
10
1.2
SSW
10
2.1
SW
10
2.2
SW
10
Wave Graph
Metric surfscale
Energy kJ
653
645
717
686
408
571
465
460
365
557
407
307
467
464
428
350
636
269
842
951
Wind (km/h)
50
WSW
50
WSW
50
WSW
50
WSW
25
WSW
20
WSW
20
SW
5
WSW
10
NE
10
ENE
30
NE
25
NNE
25
NNE
20
ENE
25
ENE
35
NE
40
NE
45
NE
35
NNE
30
N
Wind State
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
High Tide
6:11PM1.22m
5:52AM1.57m
6:35PM1.28m
6:26AM1.57m
6:59PM1.34m
7:01AM1.53m
7:25PM1.39m
7:38AM1.46m
7:53PM1.43m
8:17AM1.35m
8:24PM1.44m
9:00AM1.21m
9:00PM1.43m
Low Tide
11:38PM0.45m
12:26PM0.15m
00:13AM0.37m
12:53PM0.17m
00:49AM0.31m
1:19PM0.21m
1:26AM0.27m
1:45PM0.29m
2:06AM0.25m
2:13PM0.38m
2:51AM0.27m
2:42PM0.48m
3:45AM0.32m
part cloud
part cloud
clear
clear
rain showers
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
rain showers
thunderstorm
rain showers
heavy rain
thunderstorm
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:35
5:35
5:35
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:14
6:14
6:13
6:12
6:10
6:09
 mm
2
2
2
1
3
12
1
18
4
21
32
Temp °C
29
29
28
29
29
28
29
28
28
29
28
28
28
28
28
27
28
28
28
28
Feels °C
26
27
24
26
28
31
31
31
31
33
29
29
29
29
28
26
26
26
26
26
  • 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 Green island Surf forecast

The above surf forecast table for Green island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Green island can be found by selecting the local surf guide option on the grey menu. Our Green 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 (Green 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 Green 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.

Green island is 72 km (45 miles) from Changlotsun. If you plan a holiday in South Taiwan, look for hotels and other accommodation in Changlotsun. Changlotsun has rooms for a wide range of budgets as well as car hire and transport links.

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