Surf Forecasts:
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 Type | Time (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 ForecastHeavy 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 SummaryHeavy 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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 8 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SW 10 | SSW 10 | SW 10 | SSW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 9 | SW 9 | SSW 11 |
Wave Graph  | |||||||||||||||||||||
 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) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | |||||||
 |  |  |  | | | | | | | | | | |  | | | | | | | |
 | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — |
 | — | 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 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 9 | SSW 9 | SE 8 | SSW 10 | SE 8 | SE 8 | SE 8 | E 9 | SE 7 | SE 6 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | SW 9 | ENE 10 |
| kJ | 347 | 448 | 295 | 450 | 239 | 726 | 233 | 188 | 111 | 15 | 49 | 14 | 28 | 27 | 26 | 29 | 30 | 30 | 30 | 727 | 33 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 9 | E 8 | SE 9 | E 13 | SE 8 | SE 8 | — | E 12 | E 9 | E 10 | E 10 | — | ENE 9 | ENE 9 | — | — | — | — | E 10 | ENE 10 |
| kJ | 48 | 40 | 49 | 231 | 3 | 169 | 304 | — | 3 | 15 | 16 | 17 | — | 8 | 8 | — | — | — | — | 29 | 32 |
Swell 3 Height (m) Direction Period (s) | NNE 10 | N 9 | — | E 8 | E 10 | E 9 | — | — | E 12 | — | — | E 9 | — | — | — | — | — | — | — | E 13 | ENE 10 |
| kJ | 20 | 2 | — | 55 | 8 | 7 | — | — | 3 | — | — | 2 | — | — | — | — | — | — | — | 4 | 31 |
Wind waves Height (m) Direction Period (s) | SW 8 | SSW 9 | SSW 9 | SE 9 | SSW 9 | SSW 9 | SW 10 | SSW 10 | SW 10 | SSW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 9 | SSE 6 | SSW 11 |
| kJ | 716 | 749 | 632 | 320 | 470 | 1138 | 1175 | 2192 | 1974 | 1393 | 1081 | 951 | 1255 | 926 | 885 | 787 | 790 | 559 | 697 | 158 | 3558 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 290 | 305 | 305 | 1429 | 0 | 127 | 721 | 357 | 357 | 338 | 338 | 324 | 721 | 338 | 67 | 529 | 529 | 357 | 717 | 775 | 778 |
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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