Dark Reef 48 hour detailed Surf Forecast

Lat Long: 12.16° N 109.20° E

Issued: 12 pm 21 Sep 2026 (local time)

Forecast update in hr min

Today's Dark Reef sea temperature is

29.6°C

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

Surf Forecasts:

How big are the waves at Dark Reef today (21 Sep):

Morning surf: Morning surf (21 Sep, local time) - 2.5ft (0.7m), 7s period with NE swell.
Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.8m), 7s period with NNE swell.
Evening surf: Evening surf (21 Sep, local time) - 3ft (0.9m), 6s period with NNE swell.

The current surf forecast for Dark Reef at 7PM is: 0.9m 7s primary swell from a North-northeast direction and 0.1m 12s secondary swell from a Northeast direction, 0.1m 18s secondary swell from a Northeast direction (forecast issued at 12:00pm September 21). The wind direction is predicted to be cross-shore.

Time (+07) & Date	Wave Height	Wave Period
Morning (21 Sep)	2.5ft (0.7m)	7s
Afternoon (21 Sep)	2.5ft (0.8m)	7s
Evening (21 Sep)	3ft (0.9m)	6s

Table - waves today at Dark Reef. (Swell directed towards the surf break)

	Short Range Forecast Heavy rain (total 64mm), heaviest during Wed night. Warm (max 29°C on Tue morning, min 24°C on Wed night). Wind will be generally light.
	Mon 21					Tuesday 22								Wednesday 23
	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM
Rating (10 max)	1	1	1	0	1	1	1	1	0	0	0	0	1	1	1	1	1	1	0	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NE 7	NNE 7	NNE 7	NNE 7	NNE 6	N 6	N 6	N 5	NE 16	NE 16	ENE 15	NNE 6	NNE 6	NE 14	ENE 14	ENE 14	ENE 13	ENE 13	ENE 13	ENE 13	ENE 12
Wave Graph
kJ	53	88	57	68	56	80	77	59	63	64	88	93	84	99	133	131	120	114	113	109	103
Wind (km/h)	NW	SE	NNE	N	NW	WNW	NW	NW	ENE	NE	NE	NNE	NW	W	NNW	NNW	NNE	NNW	N	NNW	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	glassy	cross	glassy	off	cross-off	cross-off	on	cross-on	cross-on	cross-on	cross-off	off	cross-off	cross-off	glassy	glassy	cross	cross-off	glassy
High Tide								4:14AM1.32m								5:49AM1.33m
Low Tide											2:30PM0.30m								3:03PM0.30m


	5:31	—	—	—	—	—	5:31	—	—	—	—	—	—	—	5:31	—	—	—	—	—	—
	—	—	5:39	—	—	—	—	—	—	—	5:38	—	—	—	—	—	—	—	5:38	—	—
mm	—	—	1	—	—	—	—	—	—	1	5	6	5	2	1	1	2	5	4	3	1
Temp °C	27	27	27	27	26	25	25	26	29	28	28	26	26	25	25	25	26	25	25	25	25
Feels °C	32	31	32	31	30	29	28	30	33	30	30	29	30	29	29	29	31	30	29	29	30
Swell 1 Height (m) Direction Period (s)	NE 7	NE 7	NE 12	NE 12	ENE 17	NNE 6	NNE 6	NNE 6	NE 16	NE 16	ENE 15	ENE 15	ENE 15	NE 14	ENE 14	ENE 14	ENE 13	ENE 13	ENE 13	ENE 13	S 8
kJ	53	49	6	6	28	55	53	41	63	64	88	87	84	99	133	131	120	114	113	109	127
Swell 2 Height (m) Direction Period (s)	ENE 12	NE 12	NE 18	NE 18	ENE 12	ENE 17	ENE 17	ENE 15	NE 12	S 6	S 6	S 5	SW 5	SW 5	SW 5	S 5	S 5	—	NE 7	S 9	ENE 12
kJ	15	6	13	12	14	27	29	46	5	1	1	1	1	1	1	1	1	—	2	6	103
Swell 3 Height (m) Direction Period (s)	—	E 19	—	—	—	NE 12	NE 12	NE 12	S 6	—	—	—	—	—	—	—	—	—	S 5	NE 7	NNE 5
kJ	—	7	—	—	—	6	5	5	1	—	—	—	—	—	—	—	—	—	2	2	13
Wind waves Height (m) Direction Period (s)	N 5	NNE 7	NNE 7	NNE 7	NNE 6	N 6	N 6	N 5	NE 6	NNE 6	NNE 5	NNE 6	NNE 6	NNE 6	NNE 6	NNE 5	NNE 5	NNE 5	NNE 5	NNE 5	—
kJ	31	88	57	68	56	80	77	59	32	60	83	93	74	45	34	28	30	27	19	13	—
Nearest Offshore or Glassy	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Nam O Point Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Cue Dai Beach Da Nang	Bang Tao Phuket	Bang Tao Phuket	Cue Dai Beach Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Batu Buruk Peninsular Malaysia	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà
Rating (10 max)	1	1	1	1	1	1	1	1	2	1	1	2	1	1	1	1	1	1	1	1	1
Distance (km)	0	0	0	455	0	0	0	0	425	1282	1282	425	0	0	0	0	0	0	1010	0	0
Best forecast wave conditions in Khánh Hoà	Dark Reef	Dark Reef	Dark Reef		Dark Reef	Dark Reef	Dark Reef	Dark Reef					Dark Reef	Dark Reef	Dark Reef	Dark Reef	Dark Reef	Dark Reef		Dark Reef	Dark Reef
Rating (10 max)	1	1	1		1	1	1	1					1	1	1	1	1	1		1	1
Best forecast wave conditions in Vietnam	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Binh An Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Lang Co Da Nang			China Beach Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà		Dark Reef Khánh Hoà	Dark Reef Khánh Hoà
Rating (10 max)	1	1	1	1	1	1	1	1	2			2	1	1	1	1	1	1		1	1
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Rating (10 max)	5	5	5	5	6	6	9	5	4	5	9	9	8	9	9	8	8	7	7	6	6

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

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Dark Reef 48 hour detailed Surf Forecast

How big are the waves at Dark Reef today (21 Sep):

Short Range Forecast

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