Surf Forecasts:
Green island surf forecast from 25 Jul 2026:
- Best quality surf: Sunday 26 Jul, 2AM (local time) - 6ft (1.8m), 8s period, SE swell with offshore winds.
- Most powerful swell: Saturday 25 Jul, 5PM (local time) - 7.5ft (2.3m), 9s period, SE swell with 777 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 2AM (local time) - 6ft (1.8m), 8s period with SE 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 (Jul 26) at 2AM. The primary swell is predicted to be 1.8m and 8s period with a secondary swell of 1.6m and 8s. Another secondary swell of 1.5m and 9s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Green island in the next 16 days are 2.3m 9s and forecast to arrive on Saturday (Jul 25) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 9s period and expected on Sunday (Jul 26) at 8AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 26th Jul) | 6ft (1.8m) 8s |
| Best Surf | 2AM (Sun 26th Jul) | 6ft (1.8m) 8s |
| Most Powerful | 5PM (Sat 25th Jul) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Green island over the next 16 days.
Short Range ForecastHeavy rain (total 121mm), heaviest during Sun morning. Warm (max 28°C on Sat morning, min 25°C on Sun morning). Winds decreasing (fresh winds from the ESE on Sat morning, light winds from the WSW by Sat night). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Tue morning. Warm (max 29°C on Wed afternoon, min 28°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ESE 9 | SE 9 | SE 8 | SE 8 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 8 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 848 | 777 | 403 | 177 | 135 | 239 | 136 | 122 | 73 | 113 | 119 | 176 | 184 | 138 | 155 | 142 | 123 | 188 | 141 | 95 | 82 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on |
High Tide | 4:39PM0.96m | 3:23AM1.34m | 5:18PM1.01m | 4:12AM1.41m | 5:49PM1.06m | 4:54AM1.48m | 6:18PM1.11m | 5:33AM1.54m | 6:45PM1.14m | 6:09AM1.57m | 7:12PM1.18m | 6:43AM1.58m | 7:39PM1.22m | ||||||||
Low Tide | 10:00AM0.38m | 8:57PM0.79m | 10:45AM0.30m | 9:54PM0.74m | 11:23AM0.23m | 10:39PM0.68m | 11:56AM0.17m | 11:18PM0.62m | 12:28PM0.14m | 11:54PM0.56m | 12:58PM0.12m | 00:29AM0.51m | 1:27PM0.14m | 1:05AM0.46m | |||||||
 |  |  | | | | | | | | | | |  |  | |  |  | | | | |
 | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — |
 | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:36 | — | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — |
mm | 9 | 14 | 21 | 15 | 9 | 12 | 16 | 10 | 15 | 4 | 4 | 1 | 1 | — | 1 | 1 | — | — | — | — | 2 |
Temp °C | 28 | 28 | 27 | 26 | 26 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 |
Feels °C | 27 | 30 | 30 | 28 | 27 | 30 | 30 | 31 | 31 | 30 | 31 | 31 | 31 | 33 | 33 | 31 | 32 | 33 | 33 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSW 9 | SE 8 | WSW 11 | SE 7 | WSW 10 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 8 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 |
| kJ | 612 | 413 | 314 | 425 | 135 | 96 | 54 | 79 | 73 | 113 | 119 | 176 | 184 | 138 | 155 | 142 | 123 | 188 | 141 | 95 | 82 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | NE 10 | SW 9 | SE 8 | WSW 10 | SSW 7 | W 8 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 5 | SSE 5 | SSE 6 | SE 5 | SSE 5 | SSE 5 | SSE 4 | ENE 9 | ESE 9 | SE 4 |
| kJ | 70 | 25 | 359 | 177 | 235 | 36 | 36 | 38 | 41 | 42 | 26 | 28 | 18 | 27 | 13 | 9 | 9 | 4 | 15 | 8 | 4 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | E 16 | ENE 10 | ESE 10 | ENE 9 | ENE 9 | ESE 10 | WSW 8 | ENE 9 | ENE 9 | ENE 8 | SE 10 | SE 10 | ESE 10 | ESE 10 | ENE 9 | ENE 9 | ESE 10 | SSE 4 | E 10 | SE 8 |
| kJ | 40 | 5 | 38 | 38 | 29 | 16 | 39 | 20 | 16 | 15 | 14 | 26 | 25 | 20 | 18 | 16 | 16 | 20 | 3 | 8 | 18 |
Wind waves Height (m) Direction Period (s) | ESE 9 | SE 9 | SE 8 | — | N 3 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | — | — | — | SSE 5 | — | — | — | — | ESE 8 | — |
| kJ | 848 | 777 | 403 | — | 8 | 239 | 136 | 122 | 72 | 58 | 54 | — | — | — | 10 | — | — | — | — | 25 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 363 | 0 | 127 | 127 | 127 | 127 | 127 | 127 | 472 | 472 | 472 | 472 | 472 | 472 | 74 | 74 | 74 | 696 | 67 | 517 |
Best forecast wave conditions in South Taiwan | |||||||||||||||||||||
Best forecast wave conditions in Taiwan | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Green island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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