
Surf Forecasts:
Green island surf forecast from 10 Aug 2026:
- Best quality surf: Sunday 16 Aug, 8PM (local time) - 7ft (2.1m), 9s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 11AM (local time) - 11ft (3.5m), 9s period, SW swell with 1,956 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 8PM (local time) - 7ft (2.1m), 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 Sunday (Aug 16) at 8PM. The primary swell is predicted to be 2.1m and 9s period with a secondary swell of 0.4m and 11s. Another secondary swell of 0.3m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Green island in the next 16 days are 3.5m 9s and forecast to arrive on Monday (Aug 10) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 16th Aug) | 7ft (2.1m) 9s |
| Best Surf | 8PM (Sun 16th Aug) | 7ft (2.1m) 9s |
| Most Powerful | 11AM (Mon 10th Aug) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Green island over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon morning. Warm (max 30°C on Mon afternoon, min 28°C on Mon night). Mainly near gales. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sat night. Warm (max 29°C on Thu morning, min 28°C on Sat night). Mainly near gales. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 9 | SW 10 | SW 10 | SW 9 | SW 9 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 |
Wave Graph | |||||||||||||||||||||
1956 | 1819 | 1368 | 826 | 744 | 681 | 800 | 767 | 531 | 626 | 513 | 609 | 654 | 718 | 734 | 872 | 795 | 654 | 826 | 690 | 649 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | off |
High Tide | 5:11PM1.09m | 4:17AM1.61m | 5:49PM1.16m | 5:10AM1.68m | 6:24PM1.22m | 5:57AM1.71m | 6:56PM1.27m | 6:41AM1.69m | 7:28PM1.32m | 7:22AM1.61m | 7:58PM1.35m | 8:02AM1.48m | 8:29PM1.36m | ||||||||
Low Tide | 10:38AM0.11m | 9:58PM0.67m | 11:25AM0.03m | 10:53PM0.57m | 12:07PM-0.01m | 11:40PM0.47m | 12:44PM0.01m | 00:24AM0.38m | 1:18PM0.06m | 1:07AM0.33m | 1:50PM0.15m | 1:50AM0.32m | 2:19PM0.27m | 2:33AM0.34m | |||||||
5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | |
— | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — | |
mm | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 5 | — | 2 | 9 |
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 | 26 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 26 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 29 | 30 | 33 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | NE 10 | SE 8 | SSE 8 | NE 11 | ENE 11 | ENE 11 | ENE 11 |
56 | 218 | 273 | 307 | 242 | 213 | 164 | 127 | 119 | 79 | 78 | 68 | 40 | 40 | 25 | 17 | 25 | 31 | 48 | 47 | 75 | |
Swell 2 Height (m) Direction Period (s) | ENE 15 | SSE 10 | SSE 9 | SE 10 | SSE 9 | SE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | ENE 10 | ENE 10 | SE 7 | SE 8 | SE 8 | SSE 8 |
125 | 81 | 110 | 94 | 106 | 75 | 62 | 59 | 43 | 25 | 26 | 23 | 16 | 17 | 15 | 19 | 20 | 14 | 17 | 16 | 11 | |
Swell 3 Height (m) Direction Period (s) | NNE 10 | N 9 | N 9 | N 10 | N 9 | NE 8 | N 7 | NE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | ESE 10 | ESE 11 | ESE 11 | ESE 11 |
9 | 2 | 1 | 2 | 2 | 3 | 1 | 3 | 7 | 7 | 7 | 15 | 13 | 12 | 6 | 6 | 6 | 10 | 11 | 12 | 12 | |
Wind waves Height (m) Direction Period (s) | SW 9 | SW 10 | SW 10 | SW 9 | SW 9 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 |
1956 | 1819 | 1368 | 826 | 744 | 681 | 800 | 767 | 531 | 626 | 513 | 609 | 654 | 718 | 734 | 872 | 795 | 654 | 826 | 690 | 649 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 127 | 127 | 357 | 363 | 127 | 357 | 74 | 290 | 74 | 290 | 305 | 363 | 305 | 324 | 338 | 74 | 67 | 67 | 67 | 0 |
Best forecast wave conditions in South Taiwan | |||||||||||||||||||||
Best forecast wave conditions in Taiwan | |||||||||||||||||||||
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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.











