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Castlerock Surf Forecast
/ Londonderry (4 surf breaks) /
Surf Forecasts
Castlerock surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 11 am Thursday 21 Nov 2024 GMTForecast 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
11.6° C
(Which is slightly warmer than usual)How big are the waves at Castlerock today?
The current surf forecast for Castlerock at 4PM is: 2.5m 8s primary swell from a North-northwest direction (forecast issued at 11:00am November 21). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Nov) | 4ft (1.2m) | 6s |
| Afternoon (21 Nov) | 8ft (2.4m) | 8s |
| Evening (21 Nov) | 8ft (2.5m) | 8s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 6 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 10 | 10 | 13 | 13 | 12 | 11 | 10 | 9 | 11 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 15 | 15 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 103 | 405 | 733 | 882 | 903 | 807 | 623 | 454 | 315 | 248 | 274 | 309 | 258 | 202 | 120 | 44 | 13 | 7 | 11 | 21 | 35 | 68 | 56 | 40 | 37 | 49 | 90 | 113 | 303 | 452 | 446 | 693 | 805 | 1206 | 1917 | 2148 | 2173 | 2427 | 1805 | 1305 | 981 | 763 | 639 | 500 | 370 | 356 | 341 | 314 | 256 | 200 | 157 | 127 | 99 | 42 | 44 | 30 | 24 | 22 | 22 | 24 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | off | off | off | cross- off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | off | cross- off | cross- off | cross- off | cross- off | off | off | off | off |
High Tide / height (m) | 9:30AM 1.54 | 9:37PM 1.10 | 10:42AM 1.42 | 10:52PM 0.99 | 12:19PM 1.37 | 12:54AM 0.99 | 1:42PM 1.40 | 2:15AM 1.07 | 2:35PM 1.44 | 3:03AM 1.19 | 3:15PM 1.49 | 3:39AM 1.30 | 3:48PM 1.53 | 4:11AM 1.42 | 4:20PM 1.57 | |||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 4:32PM 0.58 | 4:02AM 0.51 | 5:52PM 0.66 | 5:15AM 0.57 | 7:15PM 0.66 | 6:35AM 0.59 | 8:22PM 0.60 | 7:48AM 0.57 | 9:08PM 0.52 | 8:48AM 0.52 | 9:44PM 0.44 | 9:36AM 0.45 | 10:15PM 0.36 | 10:18AM 0.39 | ||||||||||||||||||||||||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | 8:11 | - | - | - | - | - | - | - | 8:14 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - | 8:17 | - | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - | 8:21 | - | - | - | - | - | - | - | 8:22 | - | - | - | - | - | - | - | 8:23 | - | - | - |
| Sunset | - | - | 4:13 | - | - | - | - | - | - | - | 4:10 | - | - | - | - | - | - | - | 4:09 | - | - | - | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:05 | - |
 | | | |  | | | | |  |  |  |  | | |  |  | | | | | | | |  | | | |  | | | | | | | | |  | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | 1 | 2 | 2 | 2 | 1 | 3 | 3 | 3 | 2 | 1 | - | - | - | - | 1 | 11 | 9 | 2 | - | - | - | 1 | - | 1 | - | - | - | - | - | - | - | 2 | 4 | 3 | - | 5 | 2 | - | - | - | - | 3 | 7 | 5 | 1 | 1 | 3 | 1 | - | - | - | - | - | - | 3 | 3 | - | 2 | - | - |
| Temp. °C | 4 | 6 | 6 | 5 | 5 | 6 | 4 | 6 | 6 | 7 | 7 | 6 | 5 | 4 | 3 | 4 | 7 | 12 | 12 | 12 | 13 | 14 | 14 | 12 | 9 | 9 | 9 | 9 | 9 | 8 | 7 | 8 | 6 | 8 | 7 | 9 | 10 | 9 | 9 | 8 | 7 | 7 | 8 | 10 | 9 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 7 | 7 | 9 | 10 | 12 | 13 | 14 | 14 |
| Feels °C (?) | -3 | -4 | -4 | -6 | -3 | -4 | -3 | -1 | 0 | 0 | 0 | 1 | 0 | -3 | -6 | -9 | -5 | 8 | 9 | 8 | 7 | 7 | 7 | 4 | 1 | 1 | 1 | 0 | 0 | -2 | -5 | -4 | -7 | -5 | -5 | -2 | -1 | -1 | 1 | 1 | 2 | 4 | 2 | 7 | 6 | -1 | 1 | 1 | 2 | 4 | 6 | 6 | 2 | -1 | 0 | 4 | 9 | 10 | 11 | 11 |
- 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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