Castlerock 48 hour detailed Surf Forecast

Lat Long: 55.17° N 6.78° W

Issued: 11 am 03 Nov 2026 (local time)

Forecast update in hr min

Today's Castlerock sea temperature is

12.6°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 (03 Nov):

Morning surf: Morning surf (03 Nov, local time) - 1.5ft (0.4m), 9s period with WNW swell.
Afternoon surf: Afternoon surf (03 Nov, local time) - 1.5ft (0.4m), 16s period with NW swell.
Evening surf: Evening surf (03 Nov, local time) - 1.5ft (0.5m), 15s period with NW swell.

The current surf forecast for Castlerock at 3PM is: 0.4m 16s primary swell from a Northwest direction and 0.4m 9s secondary swell from a West-northwest direction (forecast issued at 11:00am November 03). The wind direction is predicted to be cross-onshore.

Time (GMT) & Date	Wave Height	Wave Period
Morning (03 Nov)	1.5ft (0.4m)	9s
Afternoon (03 Nov)	1.5ft (0.4m)	16s
Evening (03 Nov)	1.5ft (0.5m)	15s

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

	Short Range Forecast Mostly dry. Very mild (max 10°C on Tue afternoon, min 7°C on Thu morning). Winds increasing (calm on Tue morning, fresh winds from the E by Thu night).
	Tue 3					Wednesday 4								Thursday 5								Fri 6
	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	1	1	1	1	0	0	0	0	0	1	1	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	WNW 9	NW 18	NW 16	NW 16	NW 15	NW 14	WNW 14	WNW 15	NW 15	WNW 14	WNW 14	NW 13	NW 13	NW 13	NW 12	NW 12	NW 11	NW 11	WNW 11	WNW 11	NW 10	NW 10	NW 10	NW 10
Wave Graph
kJ	32	49	93	122	106	103	138	85	109	140	133	142	138	128	72	69	64	58	46	44	25	25	26	24
Wind (km/h)	SE	E	ENE	E	E	ESE	ESE	ESE	ESE	E	ENE	E	E	E	E	ESE	E	E	E	E	E	E	E	E
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	cross	cross-on	cross	cross	cross-off	cross-off	cross-off	cross-off	cross	cross	cross	cross	cross	cross-off	cross-off	cross	cross	cross	cross	cross	cross	cross	cross
High Tide			1:42PM1.54m				2:22AM1.16m				2:45PM1.65m					3:14AM1.30m				3:32PM1.73m				3:55AM1.43m
Low Tide	6:53AM0.53m				8:38PM0.46m				8:11AM0.45m					9:31PM0.36m				9:11AM0.36m				10:10PM0.27m


	7:33	—	—	—	—	—	—	7:35	—	—	—	—	—	—	—	7:37	—	—	—	—	—	—	—	7:39
	—	—	4:45	—	—	—	—	—	—	—	4:44	—	—	—	—	—	—	—	4:42	—	—	—	—	4:39
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	9	9	10	10	10	10	8	8	8	9	10	10	10	9	8	8	7	8	9	9	10	10	9	10
Feels °C	7	7	8	7	8	8	5	5	5	6	6	7	7	6	4	5	3	3	3	3	4	4	3	5
Swell 1 Height (m) Direction Period (s)	WNW 9	WNW 9	WNW 9	NW 16	NW 15	NW 14	WNW 14	WNW 15	NW 15	WNW 14	WNW 14	NW 13	NW 13	NW 13	NW 12	NW 12	NW 11	NW 11	WNW 11	WNW 11	NW 10	NW 10	NW 10	NW 10
kJ	32	32	32	122	106	103	138	85	109	140	133	142	138	128	72	69	64	58	46	44	25	25	25	24
Swell 2 Height (m) Direction Period (s)	NW 19	NW 18	NW 16	NW 9	NW 9	WNW 9	—	NW 6	ENE 3	—	—	—	—	—	—	—	—	—	—	NW 13	—	NW 13	NW 13	WNW 13
kJ	14	49	93	22	21	8	—	1	2	—	—	—	—	—	—	—	—	—	—	7	—	7	7	17
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	NW 5	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	E 3	E 3	ENE 3	E 3	E 3	E 3	—	—	E 3	ENE 3	ENE 4	ENE 4	E 4	E 4	E 4	E 4	E 4	E 4	E 4
kJ	—	—	—	—	—	1	2	2	2	2	1	—	—	1	2	4	4	14	24	17	17	17	26	18
Nearest Offshore or Glassy	White Rocks Antrim	Portstewart Strand Londonderry	Portstewart Strand Londonderry	Portstewart Strand Londonderry	Portstewart Strand Londonderry	Castlerock Londonderry	Castlerock Londonderry	Castlerock Londonderry	Castlerock Londonderry	Portstewart Strand Londonderry	Portstewart Strand Londonderry	Portstewart Strand Londonderry	Portstewart Strand Londonderry	Portstewart Strand Londonderry	Castlerock Londonderry	Castlerock Londonderry	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal	Pollan Bay Donegal	Pollan Bay Donegal	Five Finger Strand Donegal	Five Finger Strand Donegal
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	1	1	1	1	1
Distance (km)	14	2	2	2	2	0	0	0	0	2	2	2	2	2	0	0	40	40	40	40	41	41	40	40
Best forecast wave conditions in Londonderry		Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand	Portstewart Strand
Rating (10 max)		1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Best forecast wave conditions in Ireland	Aileen's Clare	Easky Left Sligo	Aileen's Clare	Pollacheeny Harbour Sligo	Pollacheeny Harbour Sligo	Aileen's Clare	Doolin Point Clare	Aileen's Clare	Aileen's Clare	Pollacheeny Harbour Sligo	Aileen's Clare	Aileen's Clare	Tullaghan (Leitrim) Donegal	Brinlack Point (Bloody Foreland) Donegal	Aileen's Clare	Aileen's Clare	Brinlack Point (Bloody Foreland) Donegal	Brinlack Point (Bloody Foreland) Donegal	Brinlack Point (Bloody Foreland) Donegal	Doolin Point Clare	Doolin Point Clare	Doolin Point Clare	Doolin Point Clare	Aileen's Clare
Rating (10 max)	2	3	3	3	2	3	3	3	3	3	3	2	2	3	2	2	2	2	2	1	1	1	1	1
Header Global	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Cojo United States	Bali Village Indonesia	Bali Village Indonesia	Bali Village Indonesia	Bay of Skaill United Kingdom	Bay of Skaill United Kingdom	Bay of Skaill United Kingdom	Bay of Skaill United Kingdom	Bancoora Australia	Cojo United States	Cow Bombie Australia	Fullers United States	Barrancon Chile	Cojo United States	Kaiser's (Hachijojima Island) Japan	Kaiser's (Hachijojima Island) Japan	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States	Ranches United States	Lincoln City Nelscott Reef United States	Lincoln City Nelscott Reef United States
Rating (10 max)	5	5	4	4	4	4	4	4	4	4	4	5	5	5	4	5	5	5	5	5	5	5	8	8

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

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Short Range Forecast

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