Surf Forecasts:
Green island surf forecast from 26 Aug 2026:
- Best quality surf: Saturday 29 Aug, 2PM (local time) - 5.5ft (1.7m), 9s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 8ft (2.5m), 14s period, ENE swell with 2,441 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 2PM (local time) - 5.5ft (1.7m), 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 Saturday (Aug 29) at 2PM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.4m and 12s. 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 2.5m 14s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 11s period and expected on Thursday (Aug 27) at 11AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sat 29th Aug) | 5.5ft (1.7m) 9s |
| Best Surf | 2PM (Sat 29th Aug) | 5.5ft (1.7m) 9s |
| Most Powerful | 5AM (Wed 2nd Sep) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Green island over the next 16 days.
Short Range ForecastMostly dry. Warm (max 29°C on Thu night, min 28°C on Wed afternoon). Winds decreasing (near gales from the WSW on Thu afternoon, light winds from the SW by Sat morning). | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Mon night. Warm (max 29°C on Sat afternoon, min 28°C on Sat night). Winds increasing (calm on Sat afternoon, strong winds from the NE by Tue morning). | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | ENE 11 | ENE 10 | ENE 11 | ENE 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 554 | 714 | 634 | 748 | 655 | 519 | 582 | 552 | 492 | 460 | 424 | 398 | 490 | 424 | 373 | 360 | 392 | 432 | 870 | 2288 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 5:47PM1.16m | 5:16AM1.53m | 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 | |||||||
Low Tide | 11:03PM0.55m | 11:59AM0.16m | 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 | |||||||
 |  | | | |  | | | | |  |  | | | | | | | | | |
 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — |
 | 6:15 | — | — | 6:15 | — | — | 6:14 | — | — | 6:14 | — | — | 6:13 | — | — | 6:12 | — | — | 6:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | 6 | 1 | — | 4 | — | — | 11 | 2 | 2 | 2 |
Temp °C | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 27 | 26 | 25 | 24 | 27 | 27 | 28 | 31 | 31 | 34 | 33 | 31 | 31 | 29 | 29 | 28 | 29 | 27 | 25 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 12 | NE 12 | NNE 11 | NNE 11 | NNE 10 | NNE 11 | NNE 10 | ENE 12 | SW 9 | SW 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | ENE 11 | ENE 10 | ENE 11 | ENE 13 |
| kJ | 517 | 236 | 215 | 207 | 155 | 150 | 112 | 48 | 492 | 460 | 424 | 398 | 490 | 424 | 373 | 334 | 392 | 432 | 870 | 2288 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | ENE 10 | ENE 14 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | NNE 9 | ENE 12 | ENE 12 | E 11 | E 8 | E 9 | E 10 | E 10 | E 10 | SW 9 | SW 9 | SW 10 | SW 10 |
| kJ | 6 | 21 | 37 | 59 | 57 | 55 | 50 | 16 | 47 | 87 | 58 | 64 | 111 | 188 | 234 | 360 | 278 | 284 | 296 | 327 |
Swell 3 Height (m) Direction Period (s) | NE 18 | ENE 15 | ENE 11 | SSE 8 | ESE 10 | SE 10 | ENE 16 | E 7 | ENE 15 | SSE 8 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | SSE 9 | SSE 8 | SSE 9 | SE 9 | SSE 8 |
| kJ | 12 | 42 | 12 | 6 | 10 | 4 | 25 | 4 | 42 | 13 | 69 | 98 | 92 | 57 | 77 | 31 | 14 | 17 | 21 | 7 |
Wind waves Height (m) Direction Period (s) | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | — | — | — | — | — | — | — | — | — | N 4 | — | — |
| kJ | 554 | 714 | 634 | 748 | 655 | 519 | 582 | 552 | — | — | — | — | — | — | — | — | — | 9 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 290 | 127 | 311 | 127 | 74 | 338 | 74 | 67 | 67 | 67 | 290 | 696 | 472 | 610 | 696 | 696 | 311 | 515 | 515 | 79 |
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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