Castlerock Surf Forecast and Surf Reports

(Londonderry, Ireland)

Forecast
- Hourly Forecast
- 16 Day Forecast
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Weather State
Spot Information

Castlerock Surf Guide

Castlerock in Londonderry is an exposed beach/Jetty break that has dependable surf, although summer tends to be mostly flat. Offshore winds are from the south. Most of the surf here comes from groundswells and the best swell direction is from the northwest. Waves at the beach are both lefts and rights. Best around mid tide. Unlikely to be too crowded, even when the surf is up.

Castlerock Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Beach/jetty	3	consistent	10.3°C*ocean temperature recorded from satellite

Surfing Castlerock:

The best conditions reported for surf at Castlerock occur when a Northwest swell combines with an offshore wind direction from the South.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Castlerock (for consistent clean waves)?

februaryBest Season: winter

The best time of year for surfing Castlerock with consistent clean waves (rideable swell with light / offshore winds) is during Winter and most often the month of February. Clean surfable waves are typically found 47% of the time in February while 44% of the time it tends to be blown out. For the remaining 9% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

47%

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

44%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Castlerock Location Map

Interactive Castlerock surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The closest passenger airport to Castlerock is Londonderry Eglinton Airport (LDY) in North Ireland, 28 km (17 miles) away (directly). The second nearest airport to Castlerock is Islay Airport (ILY) in U.k, 66 km (41 miles) away.

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

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Castlerock Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Wednesday, 6 May 2026, 08:12 Local Time

m, °C	Wednesday 06
ft, °F	4AM	7AM	10AM	1PM
Wave (m)	NW	NW	NW	NW
Period (s)	9	9	8	8
Wind (km/h)
Wind State	cross- on	cross- off	cross- off	cross- off

What does Castlerock look like?

Latest photos from Castlerock. Upload your own or view all photos on the gallery page.

Credit: Ivan IV Vasilyevich Credit: Ivan IV Vasilyevich Credit: Ivan IV Vasilyevich Credit: Ivan IV Vasilyevich

Tides at Castlerock

Current tide and informaton

For Portstewart, 4 km from Castlerock.

Next High Water: 09:03am | 1.36m

Next Low Water: 03:18pm | 0.42m

NEXT	IS AT (local time)	remaining
high tide
low tide

Castlerock Sea Temperature

The water temperature (10.3 °C) at Castlerock is quite cold. Despite the sun, windchill of 5.0 °C means that surfers will need plenty of neoprene. Wear a quality winter wetsuit, a neoprene hood, gloves and boots. A windchill factor of (5.0 °C).

Today, many surfers would wear a winter wetsuit, a neoprene hood, gloves and boots.