Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Green island surfForecast / South / Taiwan

information circle12 Day Weather and Surf, issued 1 am Thursday 18 Sep 2025 CST
Forecast update in hr  min  s Forecast update imminent
Green island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Green island sea temperature is
29.9° C
 (Which is 1.4°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Green island this week:

The surf forecast for Green island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 11AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.8m and 8s. Another secondary swell of 0.3m and 6s 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 12 days are 6.5m 14s and forecast to arrive on Tuesday (Sep 23) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Monday (Sep 22) at 11AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Fri 19th Sep)3.5ft (1.0m) 8s
Best Surf 8PM (Mon 22nd Sep)20ft (6.0m) 14s
Most Powerful 2AM (Tue 23rd Sep)21ft (6.5m) 14s

Table - best surf conditions forecast for Green island over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 67mm), heaviest during Thu afternoon. Warm (max 29°C on Fri afternoon, min 25°C on Thu morning). Winds decreasing (fresh winds from the NE on Thu afternoon, calm by Fri night).

Days 3-6 Weather Summary Heavy rain (total 81mm), heaviest during Mon afternoon. Warm (max 29°C on Sun morning, min 27°C on Mon afternoon). Winds increasing (moderate winds from the NNE on Sun morning, gales from the NE by Mon night).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
2
1
1
1
2
1
0
1
1
0
0
!
0
0
0
0
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
E
1.1
E
0.9
ESE
1
E
0.9
E
0.8
E
0.9
E
1
E
1.1
E
1.1
ESE
1.4
ESE
2
E
3.5
ESE
4.5
ESE
6.5
ESE
3.5
SSE
4.5
ESE
2.3
SSW
2.1
SW
2
SW
2.1
SW
Period(s) (?)776888810991212141414121112111112
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7410768127102781131832032205601234530283161557831494021149910469521111
Wind
(km/h)
25
NE
30
ENE
25
NE
15
ENE
5
SSE
5
NE
10
NE
10
ENE
15
NE
30
NNE
35
NNE
50
NNE
65
NNE
65
NE
60
ENE
45
E
45
E
35
ESE
30
ESE
15
E
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		glassglasscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffcross-
off		cross-
off		crosscrosscrosscross-
on		crosscross
High Tide
/ height (m)
4:45PM
1.12
4:07AM
1.45
5:11PM
1.20
4:52AM
1.50
5:36PM
1.27
5:30AM
1.52
5:59PM
1.34
6:05AM
1.50
6:22PM
1.39
6:39AM
1.46
6:45PM
1.43
7:11AM
1.39
7:08PM
1.45
Low Tide
/ height (m)
10:20AM
0.24
9:58PM
0.63
10:56AM
0.21
10:41PM
0.50
11:27AM
0.20
11:18PM
0.39
11:54AM
0.22
11:52PM
0.31
12:18PM
0.26
12:25AM
0.24
12:42PM
0.31
12:57AM
0.21
1:04PM
0.38
1:30AM
0.21
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise5:41--5:41--5:41--5:41--5:41--5:41--5:41--
Sunset-5:54--5:53--5:52--5:52--5:51--5:50--5:49-
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
mod rain
thunderstorm
thunderstorm
Rain (mm)
112611851-14--333511581691523
Temp. °C262627282929282929292928282829282828282828
Feels °C (?)272627293434333433292926232122252626273030
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for South

  1. weather stationWind Update The wind is still cross-off at Green island (light winds from the NNW at SHIP5255 88 km from Green island). 1.5m 6s windswell from the ESE to make surfable waves.

    3 hours 21 minutes ago Green island
Expand
<
>
View all

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.

View detailed surf forecast for Green island at:
surf-forecast.com

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 12 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.

Nearest
Nearest
Nearest