Dark Reef 48 hour detailed Surf Forecast

Lat Long: 12.16° N 109.20° E

Issued: 12 pm 18 Sep 2026 (local time)

Forecast update in hr min

Today's Dark Reef sea temperature is

29.7°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 (18 Sep):

Morning surf: Morning surf (18 Sep, local time) - 2.5ft (0.8m), 8s period with NE swell.
Afternoon surf: Afternoon surf (18 Sep, local time) - 3ft (0.9m), 8s period with NE swell.
Evening surf: Evening surf (18 Sep, local time) - 3ft (0.9m), 8s period with NE swell.

The current surf forecast for Dark Reef at 6PM is: 0.7m 8s primary swell from a Northeast direction and 0.7m 4s secondary swell from a Northeast direction (forecast issued at 12:00pm September 18). An open ocean swell of 0.2m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (+07) & Date	Wave Height	Wave Period
Morning (18 Sep)	2.5ft (0.8m)	8s
Afternoon (18 Sep)	3ft (0.9m)	8s
Evening (18 Sep)	3ft (0.9m)	8s

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

	Short Range Forecast Heavy rain (total 30mm), heaviest during Fri afternoon. Warm (max 29°C on Fri morning, min 25°C on Fri night). Wind will be generally light.
	Fri 18					Saturday 19								Sunday 20
	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	0	0	0	0	1	1	1	0	0	0	0	1	1	1	1	0	0	0	0	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	NE 7	NNE 4	NNE 5	NNE 7
Wave Graph
kJ	75	93	135	66	132	109	95	95	78	98	129	64	93	75	60	59	57	56	40	42	94
Wind (km/h)	ESE	ENE	NE	NE	N	NW	NW	NW	NE	NE	NE	NNE	NNW	NW	NW	NW	NE	NE	NE	NNE	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	on	cross-on	cross-on	cross	cross-off	cross-off	cross-off	cross-on	cross-on	cross-on	cross-on	cross-off	cross-off	cross-off	cross-off	cross-on	cross-on	cross-on	cross	cross-off
High Tide						00:58AM1.39m									1:39AM1.37m
Low Tide										11:25AM0.37m								12:48PM0.35m


	5:31	—	—	—	—	—	5:31	—	—	—	—	—	—	—	5:31	—	—	—	—	—	—
	—	—	5:42	—	—	—	—	—	—	—	5:40	—	—	—	—	—	—	—	5:40	—	—
mm	—	—	1	4	2	—	—	—	—	—	1	2	3	—	—	—	—	—	2	2	3
Temp °C	29	29	29	27	27	26	25	26	29	29	28	27	27	26	25	26	29	29	28	27	27
Feels °C	33	32	32	31	31	30	29	30	33	31	31	31	32	30	28	30	32	31	31	30	31
Swell 1 Height (m) Direction Period (s)	NE 8	S 5	S 5	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	S 5	S 6	NE 8	NE 8	NE 8	NE 8	NE 8	NE 8	S 5	S 5	NE 7	NNE 5
kJ	75	1	2	66	132	109	95	95	78	2	3	64	93	75	60	59	57	2	2	19	30
Swell 2 Height (m) Direction Period (s)	S 5	NE 16	NE 15	SSW 5	SSW 5	SSW 5	SSW 5	SSW 5	S 5	ENE 14	ENE 14	S 6	S 6	S 6	S 5	S 5	S 5	ENE 13	ENE 13	SSW 6	NE 7
kJ	1	9	9	3	3	6	3	3	2	20	20	6	6	6	5	5	2	17	17	3	18
Swell 3 Height (m) Direction Period (s)	NE 15	NE 16	—	NE 15	NE 14	NE 14	NE 14	ENE 14	ENE 14	S 6	ENE 14	NE 14	ENE 13	ENE 13	ENE 13	ENE 13	ENE 13	ENE 13	SW 6	ENE 13	SSW 6
kJ	9	9	—	8	8	8	8	20	20	1	20	8	18	17	17	17	17	17	2	17	3
Wind waves Height (m) Direction Period (s)	—	NE 8	NE 8	NE 4	—	—	—	—	N 3	NE 8	NE 8	NNE 4	NNE 4	NNE 4	—	N 3	N 4	NE 7	NNE 4	NNE 5	NNE 7
kJ	—	93	135	20	—	—	—	—	1	98	129	10	5	6	—	8	10	56	40	42	94
Nearest Offshore or Glassy	Dark Reef Khánh Hoà	Cobra Reef - Cemento West Luzon	Badoc Island Lefts West Luzon	Nam O Point Da Nang	Hon Chong Beach Break Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Cue Dai Beach Da Nang	Kudat (Pantai Kosuhui) Borneo	Koh Lanta - Khlong Dao Andaman Sea	Nam O Point Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Nai Yang Reef - Airport Reef Phuket	Nai Yang Reef - Airport Reef Phuket	Bang Tao Phuket	Nam O Point Da Nang	Dark Reef Khánh Hoà
Rating (10 max)	1	1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	2	2	2	1	1
Distance (km)	0	1395	1363	455	13	0	0	0	425	1004	1223	455	0	0	0	0	1278	1278	1282	455	0
Best forecast wave conditions in Khánh Hoà	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
Best forecast wave conditions in Vietnam	Dark Reef Khánh Hoà			Lang Co Da Nang	Binh An Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Binh An Da Nang			Nam O Point Da Nang	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà	Dark Reef Khánh Hoà				Binh An Da Nang	Dark Reef Khánh Hoà
Rating (10 max)	1			1	1	1	1	1	2			1	1	1	1	1				1	1
Header Global	Otago Peninsula - Papanui Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Sandfly Bay New Zealand	Otago Peninsula - Allans Beach New Zealand	Weld Road New Zealand	El Huerto Spain	El Huerto Spain	Cathedral Rock Australia	Shingles New Zealand	Fairhaven Australia	Kaifu Rivermouth Japan	Trial Harbour Australia	Trial Harbour Australia	Easter Reef Australia	Asu Indonesia	Asu Indonesia	Gas Bay Australia	Easky Left Ireland	Papatowai New Zealand	Papatowai New Zealand	Cobblestones Australia
Rating (10 max)	5	5	5	4	6	5	5	5	5	5	5	8	8	5	4	4	5	5	9	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 (18 Sep):

Short Range Forecast

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