Green island Surf Forecast

/ South (6 surf breaks) /

Taiwan (13 surf breaks)

Surf Forecasts:

Green island surfForecast / South / Taiwan

48hr Weather and Surf, issued 1 am Friday 19 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 30.0° C
(Which is 1.5°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 2AM is: 0.8m 7s primary swell from a East direction and 0.7m 7s secondary swell from a South-southwest direction (forecast issued at 01:00am September 19). The wind direction is predicted to be cross-offshore.

Time (CST) & Date	Wave Height	Wave Period
Morning (19 Sep)	2.5ft (0.8m)	8s
Afternoon (19 Sep)	3ft (0.9m)	8s
Evening (19 Sep)	2.5ft (0.8m)	8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

		Friday 19								Saturday 20								Sunday 21
	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM
Rating (10 max)	0	0	0	0	1	1	0	1	1	1	1	1	1	1	1	2	2	1	0	0	1	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	SSW	E	E	E	E	E	E	E	E	E	E	E	E	ESE	ESE	E	ESE	ESE	E	ESE	ESE
Period(s) (?)	7	7	8	8	8	8	8	8	8	8	8	8	8	8	10	10	10	10	9	9	9	9	11	11
Wave Graph (?)
kJ (?)	73	56	80	76	105	105	84	82	82	78	113	140	140	108	231	279	282	276	300	216	211	169	415	485
Wind (km/h)	NE	NE	NE	ENE	ENE	ENE	ESE	ESE	NE	NNE	NE	ENE	NE	E	E	NE	NNE	NE	NNE	NNE	NNE	NNE	NNE	NNE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	glass	glass	off	cross- off	cross- off	cross- off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	off	off	cross- off	cross- off
High Tide / height (m)			4:07AM 1.45					5:11PM 1.20			4:52AM 1.50					5:36PM 1.27				5:30AM 1.52				5:59PM 1.34
Low Tide / height (m)	9:58PM 0.63				10:56AM 0.21				10:41PM 0.50					11:27AM 0.20				11:18PM 0.39				11:54AM 0.22

		Friday 19								Saturday 20								Sunday 21
Sunrise	-	-	-	5:41	-	-	-	-	-	-	-	5:41	-	-	-	-	-	-	-	5:41	-	-	-	-
Sunset	-	-	-	-	-	-	5:53	-	-	-	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-

Rain (mm)	4	2	2	3	2	1	-	-	2	-	-	-	-	-	-	2	3	-	-	-	-	1	-	1
Temp. °C	27	27	28	28	28	29	29	29	28	28	28	29	29	29	29	29	28	28	28	29	29	29	28	28
Feels °C (?)	29	29	30	30	30	32	33	34	32	32	31	33	33	33	33	33	31	30	28	29	29	28	27	26

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for South

Wind Update Continuing clean conditions at Green island (light winds from the ENE at Kaohsiung International Airport 137 km from Green island). 0.9m 7s swell from the E with a 0.5m 7s swell from the SSW and a 0.2m 6s windswell from the SSE. 3 swells combining to make bigger set waves.
2 hours 22 minutes ago Green island

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