Surf spot

Nw reef - shelter island, sai kung

Forecast conditions and map view for Nw reef - shelter island, sai kung in Hong Kong. Open the interactive surf map to inspect wind, waves, and nearby spots.

Country: Hong Kong
Coordinates: 22.3324, 114.2939

Metric
Metric	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00
Wave height (m)	0.9	0.9	0.9	0.8	0.7	0.4	0.5	0.5	0.7	0.7	0.6	0.7	0.7	0.7	0.6	0.6	0.5	0.5	0.5	0.5	0.5	0.5	0.4	0.4	0.4	0.5	0.6	0.6	0.6	0.7	0.7	0.7	0.6	0.8	0.8	0.7	0.8	0.8	0.8	0.7	0.7	0.6	0.6	0.6	0.6	0.6	0.7	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Wave direction	ESE	E	ESE	ESE	ESE	ESE	ESE	ESE	E	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	ESE	ESE	ESE	ESE	ESE	E	E	E	E	E	ESE	ESE	E	E	E	E	E	E	E	E	ESE	ESE	ESE	E	E	E	E	E	E	ESE	E	E	ESE	ESE	ESE	ESE	ESE
Wave period (s)	5.2	4.8	4.8	4.9	4.8	5.8	5.2	5.7	5.7	5	4.7	5	4.8	4.3	4.1	4	3.8	3.6	3.8	3.8	3.5	3.5	3.7	4.3	4.1	4.4	4.5	4.8	4.7	5	4.8	5.2	5.5	5.1	5.3	5.5	5.5	5.1	5	4.9	4.6	4.6	4.6	4.9	4.9	4.8	4.8	4.7	4.5	4.3	4.2	4.3	4.3	4.2	4.1	4.1
Wave energy (kJ)	41	38	33	29	23	13	12	15	31	22	14	21	20	16	13	10	8	7	7	8	6	5	4	5	7	10	13	14	17	21	23	24	21	32	35	32	36	37	28	24	18	16	16	16	16	18	20	18	16	13	12	12	12	12	11	11
Wind speed (km/h)	23.7	9.4	11	22.4	21.4	24.6	33.6	34	32.6	30.8	29.3	27.3	24.5	19.4	12.1	10.9	10.8	14.8	17.2	18.9	14.3	9.3	7.6	1.8	3.6	4.4	5.2	8.6	10.4	7.2	7.6	2.3	1.5	7.2	10.1	15.1	11.8	11.4	9.4	12.7	14	11.9	9.2	9.5	17.7	19.9	24.6	27.6	24.1	22.5	25.3	25.9	24.9	20.7	15.3	12.5
Wind direction	ENECross	NCross-on	NCross-on	NECross	ENECross	ECross-off	ENECross	ENECross	ENECross	ENECross	ENECross	ECross-off	ECross-off	ECross-off	ENECross-off	ENECross	ENECross	NECross	ENECross	ECross-off	ESECross-off	SSEOffshore	SSWCross-off	NWGlassy	NGlassy	NGlassy	NECross-on	ESECross-off	SSEOffshore	SOffshore	SWCross-off	SWGlassy	NWGlassy	ENECross	ENECross	ECross-off	ESECross-off	ESECross-off	ECross-off	ENECross	ENECross	NECross	ENECross	ECross-off	ECross-off	ECross-off	ENECross	ENECross	ENECross	ENECross	ENECross	ENECross	ECross-off	ECross-off	ENECross	ENECross

NW Reef, Shelter Island (Sai Kung, Hong Kong) is a small, exposed reef break in the eastern waters of Hong Kong, off the Sai Kung peninsula. It’s known more as a local/expedition-style spot than an easy everyday session, with waves breaking over a reef rather than a sandy beach.

What it’s like

Wave type: Reef break
Exposure: Faces open water, so it can pick up swell better than many Hong Kong spots
Best conditions: Generally works on swell from the east to southeast with suitable wind protection
Wave quality: Can offer quick, punchy waves, but it’s usually shorter and more technical than a mellow beach break
Difficulty: Better suited to experienced surfers due to reef hazards, currents, and the need to read the conditions carefully

Hazards / considerations

Shallow reef: Fall risks and board damage are real
Access/logistics: Often requires a boat or careful local knowledge to reach properly
Tides: Tidal range can strongly affect rideability and safety
Wind: Hong Kong’s weather can make it change quickly, and strong onshore wind can ruin the shape
Crowds: Usually less crowded than more accessible spots, but that’s partly because it’s harder to reach

Overall vibe

NW Reef is the kind of spot that can be rewarding when it lines up, especially for surfers who know Hong Kong’s coastal conditions and are comfortable with reef surfing. It’s not typically a beginner-friendly wave, but it can be one of the more interesting surf options in the Sai Kung area when swell, tide, and wind all cooperate.