Surf Forecasts:
Green island surf forecast from 11 Jul 2026:
- Most powerful swell: Saturday 11 Jul, 8PM (local time) - 11ft (3.5m), 9s period, SW swell with 2,054 kJ wave energy.
Best Forecast Surf Conditions for Green island this week:
The most powerful waves expected at Green island in the next 16 days are 3.5m 9s and forecast to arrive on Saturday (Jul 11) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Saturday (Jul 11) at 5PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sat 11th Jul) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Green island over the next 16 days.
Short Range ForecastHeavy rain (total 38mm), heaviest during Sun night. Warm (max 30°C on Sat afternoon, min 28°C on Sat morning). Winds decreasing (stormy winds from the W on Sat morning, light winds from the SSE by Mon afternoon). | Days 4-6 Weather SummaryHeavy rain (total 36mm), heaviest during Wed afternoon. Warm (max 29°C on Tue morning, min 28°C on Tue afternoon). Winds decreasing (strong winds from the SSW on Tue afternoon, light winds from the SSW by Thu night). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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) | NE 13 | NE 12 | SW 8 | SW 8 | SW 8 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | SSW 9 | SW 9 | SW 9 | SSW 9 | SSW 9 | SW 9 | SSW 8 | SSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5091 | 1922 | 1364 | 719 | 553 | 800 | 847 | 617 | 664 | 651 | 1373 | 1424 | 928 | 1261 | 1126 | 842 | 864 | 623 | 482 | 433 | 440 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 4:15PM1.05m | 3:23AM1.53m | 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 | ||||||||
Low Tide | 9:40AM0.22m | 8:59PM0.70m | 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 | |||||||
 | |  |  |  | | | | | | | | | |  | | | | | | | |
 | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — |
 | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — |
mm | — | — | 2 | 1 | — | 11 | 7 | 6 | 11 | 5 | 5 | 12 | 4 | 5 | — | 2 | 1 | 2 | — | 5 | 12 |
Temp °C | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 25 | 21 | 25 | 28 | 29 | 30 | 29 | 30 | 30 | 28 | 27 | 28 | 29 | 27 | 28 | 30 | 30 | 31 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 13 | NE 12 | NNE 11 | SSE 10 | SSE 10 | SSE 10 | E 8 | SSE 9 | SW 9 | E 9 | E 9 | SE 8 | ENE 9 | SE 8 | E 10 | E 9 | E 10 | ESE 9 | E 10 | SSW 8 | SSW 9 |
| kJ | 5091 | 1922 | 423 | 401 | 419 | 301 | 29 | 135 | 491 | 7 | 7 | 110 | 17 | 57 | 17 | 16 | 19 | 17 | 29 | 433 | 440 |
Swell 2 Height (m) Direction Period (s) | SE 14 | SE 13 | SE 11 | E 10 | E 9 | E 8 | E 8 | E 7 | SSE 8 | E 9 | — | E 10 | ENE 9 | E 9 | SE 9 | SE 7 | ENE 9 | ENE 9 | — | E 10 | SSE 7 |
| kJ | 72 | 144 | 403 | 31 | 26 | 35 | 28 | 25 | 117 | 15 | — | 7 | 17 | 16 | 3 | 12 | 8 | 8 | — | 30 | 59 |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | E 11 | NNE 11 | N 9 | — | E 10 | E 10 | E 7 | — | — | — | — | E 6 | — | — | — | — | — | SSE 7 | E 10 |
| kJ | — | 246 | 63 | 22 | 2 | — | 2 | 8 | 22 | — | — | — | — | 1 | — | — | — | — | — | 9 | 29 |
Wind waves Height (m) Direction Period (s) | WSW 8 | WSW 9 | SW 8 | SW 8 | SW 8 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | SSW 9 | SW 9 | SW 9 | SSW 9 | SSW 9 | SW 9 | — | — |
| kJ | 2597 | 2403 | 1364 | 719 | 553 | 800 | 847 | 617 | 664 | 651 | 1373 | 1424 | 928 | 1261 | 1126 | 842 | 864 | 623 | 482 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 127 | 290 | 290 | 305 | 74 | 357 | 1441 | 127 | 357 | 357 | 357 | 529 | 717 | 67 | 67 | 67 | 67 | 338 | 792 | 529 |
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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