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

12 Day 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)

Best Forecast Surf Conditions for Shelter Island this week:

The surf forecast for Shelter 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 1.8m and 9s period with a secondary swell of 0.6m and 6s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Shelter Island in the next 12 days are 1.7m 17s and forecast to arrive on Tuesday (Sep 23) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 7s period and expected on Wednesday (Sep 24) at 2PM.

Wave Type	Time (HKT) & Date	Wave Height & Period
Next good surf (1 star+)	11AM (Fri 19th Sep)	6ft (1.8m) 9s
Best Surf	8AM (Tue 23rd Sep)	5ft (1.6m) 16s
Most Powerful	2PM (Tue 23rd Sep)	5.5ft (1.7m) 17s

Table - best surf conditions forecast for Shelter Island over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 30mm), heaviest during Sun night. Warm (max 29°C on Fri afternoon, min 26°C on Sun morning). Winds increasing (calm on Sat afternoon, fresh winds from the ENE by Sun night).									Days 3-6 Weather Summary Heavy rain (total 82mm), heaviest during Wed afternoon. Warm (max 32°C on Tue afternoon, min 23°C on Wed afternoon). Winds increasing (calm on Mon afternoon, severe gales from the WNW by Wed afternoon).
	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	1	1	0	0	0	0	0	0	0	1	1	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	E	E	E	ESE	E	E	E	ESE	ESE	ESE	ESE	NW	E	SSE	SSE	SE	E
Period(s) (?)	9	9	8	7	7	6	4	11	5	8	9	15	16	16	13	7	10	5	6	6	5
Wave Graph (?)
kJ (?)	540	281	117	51	33	30	15	40	129	148	211	756	1292	1371	769	1209	8	63	97	67	50
Wind (km/h)	NW	W	W	WNW	N	NE	NE	E	ENE	NNW	NNW	NNW	NNW	N	NNW	WNW	WNW	SE	ESE	ESE	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	cross- off	cross- off	cross- off	glass	cross	cross	cross- on	cross- on	cross- off	glass	cross- off	cross- off	cross- off	off	off	cross- off	on	on	on	cross- on
High Tide / height (m)			9:06PM 1.02	7:48AM 1.58		9:24PM 1.08	8:30AM 1.53		9:36PM 1.15	9:06AM 1.45		9:38PM 1.23	9:37AM 1.33		9:26PM 1.34	10:01AM 1.21		9:27PM 1.46	10:18AM 1.08		9:44PM 1.56
Low Tide / height (m)	1:48PM 0.26		12:36AM 0.74		2:14PM 0.29	1:32AM 0.62		2:39PM 0.33	2:22AM 0.51		3:04PM 0.39	3:09AM 0.41		3:29PM 0.47	3:54AM 0.34		3:53PM 0.55	4:38AM 0.30		4:15PM 0.63

	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
Sunrise	6:09	-	-	6:09	-	-	6:09	-	-	6:11	-	-	6:11	-	-	6:11	-	-	6:11	-	-
Sunset	-	6:22	-	-	6:22	-	-	6:21	-	-	6:20	-	-	6:19	-	-	6:17	-	-	6:16	-

Rain (mm)	-	-	2	2	1	4	5	4	12	-	-	-	-	-	1	6	63	12	4	6	11
Temp. °C	28	29	28	28	28	27	27	28	27	29	30	29	30	32	29	24	23	25	28	28	27
Feels °C (?)	29	28	30	31	32	30	30	29	28	33	34	31	29	31	27	19	13	27	30	30	28

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 Continuing clean conditions at Shelter Island (calm at Cha Kwo Ling wx 8 km from Shelter Island). 1.8m 9s swell from the ESE with a 0.5m 3s local chop from the NNW. 2 swells combining to make bigger set waves.
1 hour 13 minutes ago Shelter Island

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1 h 13 min ago

3 km/h

SSE

Clean

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Shelter 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.

Information about the Shelter Island Surf forecast

The above surf forecast table for Shelter Island provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Shelter Island can be found by selecting the local surf guide option on the grey menu. Our Shelter 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 (Shelter 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 Shelter 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.

Shelter Island is 13 km (8 miles) from the very large city of Kowloon. If you plan a holiday in Hong Kong, look for hotels and other accommodation in Kowloon. Kowloon has rooms for a wide range of budgets as well as cheap car hire and transport links.