Green island surfForecast / South / Taiwan

information circle48hr Weather and Surf, issued 1 am Wednesday 21 Jan 2026 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
26.0° C
(Which is 1.7°C warmer than normal for this time of year)


How big are the waves at Green island today?

The current surf forecast for Green island at 9AM is: 4.0m 10s primary swell from a Northeast direction (forecast issued at 01:00am January 21). The wind direction is predicted to be cross-offshore.

Time (CST) & DateWave HeightWave Period
Morning (21 Jan)13ft (4.0m)10s
Afternoon (21 Jan)11ft (3.5m)10s
Evening (21 Jan)0.5ft (0.1m)16s

Table - waves today at Green island. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Wednesday
21
Thursday
22
Friday
23
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
2
2
1
1
0
1
1
Swell
Height Map
Wave Height (m) & direction (?)
4
NE
1.2
E
4
NE
4
NE
4
NE
3.5
NE
1
E
3.5
NE
0.9
E
3.5
NE
3.5
NE
3.5
NE
3.5
NE
3
NE
3
NE
2.5
NE
2.5
NE
2.4
NE
2.4
NE
2.3
NE
2.3
NE
1.4
E
2.1
NE
2
ENE
Period(s) (?)101010101010810910101010101010109998888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)301327332623047284025251372243127252523882269208817421476111510929631005891711247585541
Wind
(km/h)
55
NNE
55
NNE
55
NNE
55
NE
50
NE
45
NE
50
NNE
55
NNE
55
NE
50
NE
50
NE
45
NE
40
NE
40
NE
40
NE
40
NE
35
NE
35
NE
35
NE
30
NE
30
NE
25
ENE
25
ENE
30
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
7:57AM
1.21
7:32PM
1.59
8:27AM
1.23
8:09PM
1.52
8:58AM
1.26
Low Tide
/ height (m)
1:44AM
0.09
1:18PM
0.48
2:14AM
0.13
1:57PM
0.46
2:44AM
0.20
2:41PM
0.45
Wednesday
21
Thursday
22
Friday
23
Sunrise---6:35-------6:33-------6:33----
Sunset------5:35-------5:35-------5:36-
light rain
light rain
light rain
light rain
light rain
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
light rain
light rain
Rain (mm)
11111-111111111111111111
Temp. °C201919181818181717171717171818181818181818191919
Feels °C (?)109989997788991111111112121213151514
  • 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

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