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Castlerock Surf Forecast
/ Londonderry (4 surf breaks) /
Surf Forecasts
Beach/Jetty
Castlerock surf Forecast / Londonderry / Ireland
48hr Weather and Surf, issued 12 pm Friday 19 Apr 2024 BST
Forecast update in hr min s 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 9.1°C (Statistics for 19 Apr 1981-2005 - mean: 8.9 °C max: 9.8 °C min: 7.8 °C)
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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)
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 9.1°C (Statistics for 19 Apr 1981-2005 - mean: 8.9 °C max: 9.8 °C min: 7.8 °C)
How big are the waves at Castlerock today?
The current surf forecast for Castlerock at 2PM is: 1.4m 9s primary swell from a Northwest direction (forecast issued at 12:00pm April 19). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Apr) | 5ft (1.6m) | 9s |
| Afternoon (19 Apr) | 4.5ft (1.4m) | 9s |
| Evening (19 Apr) | 4.5ft (1.3m) | 8s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Updates in hr min s Update imminent
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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) (?) | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 9 | 8 | 8 | 8 | 9 | 9 | 9 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 10 | 10 | 9 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 418 | 316 | 247 | 232 | 162 | 129 | 88 | 71 | 57 | 35 | 34 | 25 | 17 | 16 | 5 | 5 | 5 | 5 | 8 | 18 | 25 | 28 | 20 | 16 | 8 | 11 | 21 | 29 | 47 | 51 | 40 | 42 | 35 | 31 | 35 | 33 | 30 | 31 | 33 | 39 | 39 | 33 | 19 | 17 | 16 | 19 | 25 | 24 | 24 | 18 | 18 | 32 | 43 | 39 | 60 | 93 | 116 | 139 | 181 | 151 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | on | cross- on | cross- on | cross | glass | on | on | on | glass | glass | glass | off | glass | glass | on | on | cross- on | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | glass | glass | glass | glass | off | off | off | off | cross- on | cross- on | cross- on |
High Tide / height (m) | 5:03PM 1.27 | 5:18AM 1.62 | 5:30PM 1.39 | 5:44AM 1.70 | 5:56PM 1.49 | 6:10AM 1.76 | 6:22PM 1.59 | 6:36AM 1.78 | 6:49PM 1.66 | 7:03AM 1.78 | 7:17PM 1.70 | 7:31AM 1.74 | 7:47PM 1.71 | 8:00AM 1.67 | ||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 11:22AM 0.45 | 11:01PM 0.40 | 11:49AM 0.35 | 11:34PM 0.30 | 12:13PM 0.27 | 12:05AM 0.23 | 12:38PM 0.21 | 12:35AM 0.18 | 1:02PM 0.17 | 1:05AM 0.17 | 1:26PM 0.17 | 1:34AM 0.18 | 1:49PM 0.19 | 2:03AM 0.23 | 2:13PM 0.24 | |||||||||||||||||||||||||||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:56 | - | - | - | - |
| Sunset | - | - | - | 8:39 | - | - | - | - | - | - | - | 8:42 | - | - | - | - | - | - | - | 8:44 | - | - | - | - | - | - | - | 8:45 | - | - | - | - | - | - | - | 8:47 | - | - | - | - | - | - | - | 8:50 | - | - | - | - | - | - | - | 8:52 | - | - | - | - | - | - | - | 8:53 |
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Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 |
| Temp. °C | 9 | 9 | 9 | 8 | 7 | 6 | 6 | 6 | 7 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 12 | 11 | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 9 | 8 | 7 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 6 | 5 | 5 | 7 | 8 | 9 | 8 | 8 | 8 | 7 | 7 | 9 | 10 | 10 | 10 |
| Feels °C (?) | 3 | 3 | 4 | 4 | 3 | 3 | 3 | 3 | 5 | 7 | 7 | 6 | 7 | 7 | 7 | 6 | 8 | 8 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 4 | 3 | 1 | 0 | 0 | -1 | 1 | 0 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 4 | 3 | 3 | 2 | 2 | 5 | 6 | 8 | 6 | 6 | 5 | 4 | 4 | 6 | 8 | 7 | 8 |
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