Castlerock 48 hour detailed Surf Forecast

Lat Long: 55.17° N 6.78° W

Issued: 5 am 05 Nov 2026 (local time)

Forecast update in hr min

Today's Castlerock sea temperature is

12.1°C

Castlerock 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 Castlerock today (05 Nov):

Morning surf: Morning surf (05 Nov, local time) - 1.5ft (0.5m), 11s period with NW swell.
Afternoon surf: Afternoon surf (05 Nov, local time) - 1.5ft (0.4m), 11s period with WNW swell.
Evening surf: Evening surf (05 Nov, local time) - 1.5ft (0.4m), 10s period with NW swell.

The current surf forecast for Castlerock at 1PM is: 0.4m 11s primary swell from a West-northwest direction and 0.8m 4s secondary swell from a East direction (forecast issued at 05:00am November 05). The wind direction is predicted to be cross-shore.

Time (GMT) & Date	Wave Height	Wave Period
Morning (05 Nov)	1.5ft (0.5m)	11s
Afternoon (05 Nov)	1.5ft (0.4m)	11s
Evening (05 Nov)	1.5ft (0.4m)	10s

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

	Short Range Forecast Mostly dry. Very mild (max 10°C on Thu afternoon, min 8°C on Thu morning). Wind will be generally light.
	Thursday 5							Friday 6								Saturday 7								Sun 8
	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NW 12	NW 12	NW 11	WNW 11	WNW 11	NW 11	NW 10	NW 10	NW 10	NW 10	NW 13	NW 12	NW 12	NW 11	NW 11	NW 11	NW 10	NW 10	NW 10	NW 10	WNW 10	WNW 9	WNW 9	WNW 9	WNW 9	WNW 9
Wave Graph
kJ	72	69	64	47	46	29	26	27	25	24	26	23	37	33	30	30	28	25	25	25	18	17	8	8	8	8
Wind (km/h)	ESE	E	E	E	E	E	E	E	E	E	ESE	ESE	E	E	E	ENE	E	E	E	E	ENE	NE	ENE	E	SW	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross	cross	cross	cross	cross	cross	cross	cross	cross-off	cross-off	cross-off	cross-off	cross	cross	cross	cross	cross	cross	cross	cross	cross-on	cross-on	glassy	glassy	cross-on
High Tide		3:14AM1.30m				3:32PM1.73m				3:55AM1.43m				4:11PM1.77m				4:31AM1.55m				4:46PM1.77m				5:04AM1.65m
Low Tide				9:11AM0.36m				10:10PM0.27m				9:59AM0.27m				10:43PM0.21m				10:41AM0.21m				11:12PM0.17m


	—	7:37	—	—	—	—	—	—	—	7:39	—	—	—	—	—	—	—	7:41	—	—	—	—	—	—	—	7:43
	—	—	—	—	4:42	—	—	—	—	—	—	—	4:39	—	—	—	—	—	—	—	4:37	—	—	—	—	4:36
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	8	8	8	9	10	10	10	10	9	10	10	10	10	10	10	10	10	9	9	10	10	10	10	9	9	9
Feels °C	4	4	2	3	4	4	4	5	4	6	6	6	7	7	7	7	7	7	6	7	7	8	8	7	7	7
Swell 1 Height (m) Direction Period (s)	NW 12	NW 12	NW 11	WNW 11	WNW 11	NW 11	NW 10	NW 10	NW 10	NW 10	WNW 9	NW 12	NW 12	NW 11	NW 11	NW 11	NW 10	NW 10	NW 10	NW 10	WNW 10	WNW 9	WNW 9	WNW 9	WNW 9	WNW 9
kJ	72	69	64	47	46	29	25	25	25	24	17	23	37	33	30	30	28	25	25	25	18	17	8	8	8	8
Swell 2 Height (m) Direction Period (s)	—	—	—	—	—	NW 13	—	NW 13	NW 13	WNW 13	NW 13	WNW 9	—	E 3	E 3	ENE 3	ENE 3	ENE 3	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	7	—	6	7	17	26	9	—	2	1	1	1	1	—	—	—	—	—	—	—	—
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	E 4	E 4	E 4	E 4	E 4	E 4	ENE 4	E 5	E 4	E 4	E 4	ENE 4	E 4	—	—	E 3	E 3	E 3	—	—	—	—	—	—	—	—
kJ	7	7	10	22	26	22	26	27	20	13	9	5	4	—	—	1	1	1	—	—	—	—	—	—	—	—
Nearest Offshore or Glassy	Five Finger Strand Donegal	Five Finger Strand Donegal	Pollan Bay Donegal	Pollan Bay Donegal	Five Finger Strand Donegal	Brinlack Point (Bloody Foreland) Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	White Rocks Antrim	Portballintrae Antrim	Portballintrae Antrim	Portballintrae Antrim	Portballintrae Antrim	Portballintrae Antrim	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal
Rating (10 max)	2	2	1	1	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	40	40	41	41	40	97	40	40	40	40	40	40	14	16	16	16	16	16	40	40	40	40	40	40	40	40
Best forecast wave conditions in Londonderry
Rating (10 max)
Best forecast wave conditions in Ireland	Aileen's Clare	Aileen's Clare	Brinlack Point (Bloody Foreland) Donegal	Aileen's Clare	Brinlack Point (Bloody Foreland) Donegal	Doolin Point Clare	Doolin Point Clare	Doolin Point Clare	Doolin Point Clare	Aileen's Clare	Aileen's Clare	Aileen's Clare	Aileen's Clare	Aileen's Clare	Aileen's Clare	Doolin Point Clare	Doolin Point Clare	Doolin Point Clare	Doolin Point Clare	Pollacheeny Harbour Sligo	Easky Left Sligo	Garywilliam Point Kerry	Easky Left Sligo	Garywilliam Point Kerry	Inch Reefs Kerry	Inch Reefs Kerry
Rating (10 max)	2	2	2	1	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Header Global	Kaiser's (Hachijojima Island) Japan	Lebu Chile	Kaiser's (Hachijojima Island) Japan	Kaiser's (Hachijojima Island) Japan	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Ranches United States	Ranches United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Fullers United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Gerickes Point South Africa	Fish Boma South Africa	Barrancon Chile	Barbel Point South Africa	Barrancon Chile
Rating (10 max)	5	5	6	8	5	5	5	5	8	8	7	6	6	7	5	9	9	8	7	6	6	5	5	4	4	4

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

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Castlerock 48 hour detailed Surf Forecast

How big are the waves at Castlerock today (05 Nov):

Short Range Forecast

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