Shelter Island Surf Forecast

/ Hong Kong (9 surf breaks) /

China (24 surf breaks) / Lat Long: (22.32° N 114.30° E)

Surf Forecasts:

Shelter Island surfForecast / Hong Kong / China

48hr Weather and Surf, issued 7 am Friday 19 Sep 2025 HKT

Forecast update in hr min s Forecast update imminent

Shelter Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Shelter Island sea temperature is 29.4° C
(Which is 1.3°C warmer than normal for this time of year)

How big are the waves at Shelter Island today?

The current surf forecast for Shelter Island at 1PM is: 1.5m 9s primary swell from a East-southeast direction and 0.4m 6s secondary swell from a Northeast direction (forecast issued at 07:00am September 19). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HKT) & Date	Wave Height	Wave Period
Morning (19 Sep)	6ft (1.8m)	9s
Afternoon (19 Sep)	4.5ft (1.3m)	9s
Evening (19 Sep)	3.5ft (1.0m)	8s

Table - waves today at Shelter 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								Mon 22
	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	11 PM	2 AM
Rating (10 max)	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	ESE	ESE	ESE	ESE	ESE	SE	SE	SE	ESE	ESE	E	E	E	E	E	E	ENE	E	E	E	E	E
Period(s) (?)	9	9	9	9	9	8	8	8	7	7	7	7	6	6	6	6	6	4	4	5	5	5	5	6
Wave Graph (?)
kJ (?)	830	675	406	315	222	143	106	110	75	69	37	36	22	20	18	17	21	15	24	34	71	57	83	232
Wind (km/h)	NNE	NW	NW	NW	W	W	W	W	W	W	WNW	WNW	N	ENE	ENE	NE	NE	NE	NE	ENE	E	E	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	off	off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	glass	cross	cross	cross	cross- off	cross	cross	cross- on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)		6:59AM 1.60					9:06PM 1.02			7:48AM 1.58					9:24PM 1.08				8:30AM 1.53				9:36PM 1.15
Low Tide / height (m)				1:48PM 0.26				12:36AM 0.74					2:14PM 0.29			1:32AM 0.62					2:39PM 0.33

	Friday 19							Saturday 20								Sunday 21								Mon 22
Sunrise	-	6:09	-	-	-	-	-	-	-	6:09	-	-	-	-	-	-	-	6:09	-	-	-	-	-	-
Sunset	-	-	-	-	6:22	-	-	-	-	-	-	-	6:22	-	-	-	-	-	-	-	6:21	-	-	-

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

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 Hong Kong

Wind Update The wind is still offshore at Shelter Island (moderate winds from the NNW at Hong Kong International Airport 12 km from Shelter Island). 1.6m 9s swell from the ESE with a 0.8m 3s local chop from the NNW. 2 swells combining to make bigger set waves.
1 hour 40 minutes ago Shelter Island

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1 h 40 min ago

26 km/h

NNW

Offshore

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