Shelter Island surfForecast / Hong Kong / China

information circle12 Day Weather and Surf, issued 1 pm Friday 19 Dec 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
20.5° C
(Which is slightly cooler than normal)


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 Sunday (Dec 21) at 5AM. The primary swell is predicted to be 1.4m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Shelter Island in the next 12 days are 2.5m 10s and forecast to arrive on Monday (Dec 22) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (HKT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 21st Dec)4.5ft (1.4m) 9s
Best Surf 5AM (Sun 21st Dec)4.5ft (1.4m) 9s
Most Powerful 8AM (Mon 22nd Dec)8ft (2.5m) 10s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Fri afternoon. Warm (max 22°C on Sat afternoon, min 17°C on Sun night). Winds increasing (light winds from the NE on Sat night, fresh winds from the ENE by Sun night).

Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Wed afternoon, min 17°C on Mon afternoon). Wind will be generally light.

Fri
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
1.5
ESE
1.7
ESE
1.9
E
1.8
ESE
1.4
ESE
1.8
E
2.2
ESE
2.5
E
2.3
ESE
2.2
E
2.2
E
1.8
E
2
E
1.6
E
1
ESE
1
ESE
2
E
1.7
E
1.4
ESE
2
E
2.3
E
Period(s) (?)999999891010999988899910
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3224635805402955176441252978942766529695390140127482486348670976
Wind
(km/h)
15
E
20
ENE
20
ENE
15
E
10
NE
15
ENE
25
E
30
ENE
20
ENE
25
E
25
ENE
15
ENE
10
E
10
NE
15
ENE
20
E
25
ENE
15
ENE
15
E
25
ENE
10
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscrosscross-
on
crosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
crosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross
High Tide
/ height (m)
7:12PM
1.79
11:44AM
0.82
7:48PM
1.85
12:41PM
0.80
8:26PM
1.89
1:49PM
0.79
9:05PM
1.90
9:45PM
1.88
10:25PM
1.82
3:52PM
0.86
11:08PM
1.71
Low Tide
/ height (m)
3:25AM
0.12
1:26PM
0.79
4:07AM
0.09
1:57PM
0.79
4:49AM
0.08
2:21PM
0.79
5:30AM
0.09
6:11AM
0.11
6:50AM
0.15
5:09PM
0.85
7:29AM
0.20
Fri
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Sunrise--6:56--6:56--6:56--6:58--6:58--6:58--6:58
Sunset5:42--5:43--5:43--5:44--5:44--5:45--5:45--
rain showers
part cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
part cloud
cloud
clear
part cloud
clear
Rain (mm)
1--------------------
Temp. °C201921222122221818181719201920211918191718
Feels °C (?)181820212221201416151317191918191716171417
  • 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

Latest Updates

submit an eyeball surf report

Quick surf report for Shelter Island:

join our community of surf reporters

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 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.


false

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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest