Green island Surf Break

Lat Long: 22.03° N 121.53° E

Green island Surf Forecast and Surf Report

Issued: 1 am 12 Jul 2026 (local time)

Forecast update in  hr  min

Today's Green island sea temperature is
30.1° C
0.9° 

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 11 Jul 2026:

  • Best quality surf: Monday 13 Jul, 5PM (local time) - 5.5ft (1.7m), 9s period, SSW swell with glassy winds.
  • Most powerful swell: Sunday 19 Jul, 8AM (local time) - 20ft (6.0m), 12s period, SSW swell with 9,242 kJ wave energy.
  • Next surfable swell (1★+): Monday 13 Jul, 5PM (local time) - 5.5ft (1.7m), 9s period with SSW 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 Monday (Jul 13) at 5PM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 1.3m and 8s. Another secondary swell of 0.1m and 13s is also forecast. 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 6.0m 12s and forecast to arrive on Sunday (Jul 19) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 11s period and expected on Sunday (Jul 12) at 8AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Mon 13th Jul)5.5ft (1.7m) 9s
Best Surf 5PM (Mon 13th Jul)5.5ft (1.7m) 9s
Most Powerful 8AM (Sun 19th Jul)20ft (6.0m) 12s

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


Short Range Forecast

Heavy rain (total 52mm), heaviest during Mon night. Warm (max 29°C on Sun morning, min 28°C on Mon morning). Winds decreasing (strong winds from the SW on Sun morning, calm by Mon afternoon).

Days 4-6 Weather Summary

Heavy rain (total 23mm), heaviest during Wed morning. Warm (max 29°C on Wed morning, min 28°C on Wed morning). Mainly strong winds.

Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
AM
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
1
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
2.2
SSW
9
2
SSW
9
1.7
SSW
9
1.7
SSW
9
2.5
SSW
9
2.5
SW
10
3.5
SSW
10
3
SW
10
2.5
SSW
10
2.4
SW
10
2.4
SW
9
3
SW
9
2.4
SW
9
2.4
SW
9
2.4
SSW
8
2.4
SSW
8
2.1
SSW
8
2.1
SSW
9
2.2
SW
9
4
SSW
11
Wave Graph
Metric surfscale
Energy kJ
716
749
632
450
470
1138
1175
2192
1974
1393
1081
951
1255
926
885
787
790
559
697
727
3558
Wind (km/h)
40
SW
35
SSW
25
SSW
20
ESE
5
N
25
SSW
30
SW
25
S
40
SW
35
SSW
40
SW
40
SW
35
SW
40
SW
40
SW
35
SSW
30
SSW
30
S
25
SE
20
SSE
25
SSE
Wind State
cross-on
cross-on
on
cross-on
glassy
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
on
cross-on
High Tide
5:14PM1.10m
4:20AM1.63m
6:02PM1.14m
5:13AM1.71m
6:45PM1.17m
6:03AM1.75m
7:25PM1.20m
6:51AM1.74m
8:03PM1.21m
7:37AM1.67m
8:40PM1.23m
8:23AM1.55m
9:18PM1.24m
Low Tide
10:40AM0.08m
10:00PM0.67m
11:32AM-0.01m
10:55PM0.62m
12:20PM-0.07m
11:45PM0.56m
1:05PM-0.07m
00:33AM0.51m
1:46PM-0.02m
1:20AM0.47m
2:25PM0.07m
2:08AM0.46m
3:02PM0.19m
2:58AM0.47m
thunderstorm
clear
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:18
5:18
5:18
5:18
5:18
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:39
6:39
6:39
6:39
6:39
6:38
 mm
1
11
6
5
10
7
4
8
6
3
3
1
1
3
2
4
2
6
11
Temp °C
29
29
29
29
29
29
29
29
29
29
29
29
29
29
29
28
29
29
29
29
29
Feels °C
28
29
30
33
33
33
29
29
29
28
28
28
28
28
28
26
29
29
30
30
29
  • 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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