Dark Reef 48 hour detailed Surf Forecast

Lat Long: 12.16° N 109.20° E

Issued: 12 am 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) - 3ft (0.9m), 7s period with NNE swell.
Afternoon surf: Afternoon surf (21 Sep, local time) - 3ft (0.9m), 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 8AM is: 0.9m 7s primary swell from a North-northeast direction and 0.7m 7s secondary swell from a Northeast direction, 0.1m 12s secondary swell from a Northeast direction (forecast issued at 12:00am September 21). The wind direction is predicted to be glassy.

Time (+07) & Date	Wave Height	Wave Period
Morning (21 Sep)	3ft (0.9m)	7s
Afternoon (21 Sep)	3ft (0.9m)	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 49mm), heaviest during Wed afternoon. Warm (max 29°C on Tue morning, min 25°C on Sun night). Wind will be generally light.
	Monday 21								Tuesday 22								Wednesday 23
	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	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM
Rating (10 max)	1	1	1	1	0	0	1	1	1	1	1	0	0	0	0	0	1	1	1	1	1	1	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NE 7	NE 7	NNE 7	NE 7	NE 7	NNE 7	NNE 6	NNE 6	N 6	N 6	N 5	NE 16	NE 16	NNE 6	NNE 6	ENE 15	NE 14	ENE 14	ENE 14	ENE 13	ENE 13	ENE 13	ENE 13	ENE 12
Wave Graph
kJ	54	54	94	53	49	77	66	83	91	77	59	63	80	119	108	84	99	133	131	120	114	113	109	103
Wind (km/h)	WNW	WNW	NW	NE	NNE	N	NNW	NNW	NW	NW	NW	NE	NE	NNE	NNE	N	NW	NW	NNW	N	NNE	NNE	NNW	NW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	off	cross-off	glassy	cross	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-on	cross-on	cross-on	cross	cross	cross-off	cross-off	cross-off	glassy	glassy	glassy	glassy	glassy
High Tide		2:41AM1.34m									4:14AM1.32m								5:49AM1.33m
Low Tide						1:47PM0.32m								2:30PM0.30m								3:03PM0.30m


	—	5:31	—	—	—	—	—	—	—	5:31	—	—	—	—	—	—	—	5:31	—	—	—	—	—	—
	—	—	—	—	—	5:39	—	—	—	—	—	—	—	5:38	—	—	—	—	—	—	—	5:38	—	—
mm	1	1	—	—	1	1	1	—	—	—	—	—	2	4	5	5	4	2	1	3	3	9	4	5
Temp °C	25	25	26	27	26	26	26	26	25	25	26	29	28	28	26	26	25	25	25	25	26	25	25	24
Feels °C	29	29	30	32	29	29	30	30	29	28	29	32	30	30	29	31	29	29	29	30	31	30	30	28
Swell 1 Height (m) Direction Period (s)	NE 7	NE 7	NE 7	NE 7	NE 7	NNE 7	NE 12	NNE 6	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	NNE 5
kJ	54	54	54	53	49	57	6	58	66	53	41	63	64	88	87	84	99	133	131	120	114	113	109	14
Swell 2 Height (m) Direction Period (s)	ENE 12	ENE 12	NE 12	ENE 12	NE 12	NE 12	NE 18	ENE 17	ENE 17	ENE 17	ENE 15	NE 12	S 6	S 6	—	—	—	S 5	S 5	S 5	S 6	S 6	S 6	ENE 12
kJ	15	15	6	15	6	6	12	28	27	29	46	5	1	1	—	—	—	1	1	2	3	3	2	103
Swell 3 Height (m) Direction Period (s)	—	—	—	—	E 19	NE 18	—	ENE 12	NE 12	NE 12	NE 12	S 6	—	—	—	—	—	—	—	S 6	—	S 6	S 6	S 5
kJ	—	—	—	—	7	13	—	14	6	5	5	1	—	—	—	—	—	—	—	1	—	6	6	5
Wind waves Height (m) Direction Period (s)	N 4	N 4	NNE 7	—	—	NNE 7	NNE 6	NNE 6	N 6	N 6	N 5	NNE 6	NNE 5	NNE 6	NNE 6	NNE 6	NNE 6	NNE 6	NNE 5	NNE 5	NNE 5	NNE 5	NNE 5	—
kJ	10	11	94	—	—	77	66	83	91	77	59	41	80	119	108	62	45	43	32	37	28	21	18	—
Nearest Offshore or Glassy	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Bang Niang Rivermouth Andaman Sea	Binh An Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Cue Dai Beach Da Nang	Bang Niang Rivermouth Andaman Sea	Kata Noi Phuket	My Khe / Da Nang Da Nang	Hon Chong Beach Break 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	Dark Reef Khánh Hoà
Rating (10 max)	1	1	1	1	2	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	0	0	0	0	1260	477	0	0	0	0	0	425	1260	1289	447	13	0	0	0	0	0	0	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					Hon Chong Beach Break	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	1	1	1
Best forecast wave conditions in Vietnam	Dark Reef Khánh Hoà	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	Dark Reef Khánh Hoà	Lang Co Da Nang			Binh An 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	1	1	2			1	2	1	1	1	1	1	1	1	1
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Rating (10 max)	8	8	6	5	5	4	4	6	8	9	5	6	5	9	9	9	9	9	8	6	7	7	9	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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