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Castlerock Surf Forecast
/ Londonderry (4 surf breaks) /
Surf Forecasts
Castlerock surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 12 pm Saturday 05 Jul 2025 BSTForecast update in hr min s Forecast update imminent
Castlerock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castlerock sea temperature is
15.1° C
(Which is 1.8°C warmer than normal for this time of year)How big are the waves at Castlerock today?
The current surf forecast for Castlerock at 3PM is: 1.2m 11s primary swell from a West-northwest direction (forecast issued at 12:00pm July 05). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 Jul) | 4ft (1.2m) | 10s |
| Afternoon (05 Jul) | 4ft (1.2m) | 11s |
| Evening (05 Jul) | 3.5ft (1.1m) | 11s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | 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 | 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 | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 6 | 6 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 7 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 294 | 263 | 328 | 300 | 253 | 185 | 178 | 175 | 110 | 92 | 143 | 137 | 135 | 128 | 118 | 106 | 115 | 91 | 77 | 67 | 76 | 58 | 54 | 40 | 34 | 35 | 37 | 31 | 34 | 32 | 34 | 27 | 24 | 34 | 46 | 60 | 82 | 82 | 81 | 68 | 52 | 53 | 53 | 45 | 30 | 30 | 30 | 50 | 75 | 75 | 75 | 68 | 48 | 45 | 34 | 33 | 33 | 21 | 21 | 20 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | glass | off | cross- off | cross- off | glass | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | off | cross- off | off | off | glass | cross- on |
High Tide / height (m) | 3:22PM 1.17 | 3:42AM 1.27 | 4:21PM 1.27 | 4:35AM 1.30 | 5:07PM 1.37 | 5:19AM 1.35 | 5:47PM 1.47 | 5:57AM 1.42 | 6:24PM 1.57 | 6:33AM 1.48 | 7:01PM 1.67 | 7:08AM 1.53 | 7:37PM 1.75 | 7:42AM 1.55 | ||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 9:05AM 0.61 | 9:21PM 0.64 | 10:05AM 0.57 | 10:33PM 0.60 | 10:58AM 0.50 | 11:31PM 0.53 | 11:44AM 0.42 | 12:17AM 0.45 | 12:24PM 0.34 | 12:58AM 0.39 | 1:00PM 0.26 | 1:35AM 0.34 | 1:34PM 0.19 | 2:12AM 0.32 | 2:06PM 0.15 | |||||||||||||||||||||||||||||||||||||||||||||
Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 4:54 | - | - | - | - | - | - | - | 4:56 | - | - | - | - | - | - | - | 4:56 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 5:01 | - | - | - | - | - | - | - | 5:01 | - | - | - | - |
| Sunset | - | - | - | - | 10:07 | - | - | - | - | - | - | - | 10:07 | - | - | - | - | - | - | - | 10:06 | - | - | - | - | - | - | - | 10:05 | - | - | - | - | - | - | - | 10:04 | - | - | - | - | - | - | - | 10:04 | - | - | - | - | - | - | - | 10:02 | - | - | - | - | - | - | - |
 | | | | |  |  | |  | | | | |  |  | | | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 15 | 14 | 13 | 13 | 12 | 12 | 13 | 14 | 14 | 13 | 13 | 12 | 11 | 11 | 14 | 16 | 17 | 17 | 17 | 16 | 14 | 14 | 16 | 19 | 19 | 19 | 16 | 16 | 15 | 15 | 16 | 18 | 19 | 19 | 18 | 17 | 17 | 17 | 19 | 22 | 24 | 24 | 21 | 18 | 18 | 17 | 20 | 22 | 21 | 21 |
| Feels °C (?) | 11 | 10 | 9 | 10 | 11 | 10 | 9 | 10 | 10 | 9 | 9 | 8 | 7 | 7 | 7 | 7 | 8 | 9 | 8 | 7 | 8 | 9 | 9 | 9 | 12 | 14 | 16 | 17 | 17 | 16 | 13 | 13 | 15 | 18 | 17 | 18 | 16 | 15 | 13 | 13 | 15 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 20 | 22 | 23 | 20 | 16 | 16 | 15 | 18 | 21 | 22 | 21 |
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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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