Surf Forecasts:
How big are the waves at Castlerock today (01 Oct):
- Morning surf: Morning surf (01 Oct, local time) - 5.5ft (1.7m), 15s period with WNW swell.
- Afternoon surf: Afternoon surf (01 Oct, local time) - 5.5ft (1.7m), 14s period with NW swell.
- Evening surf: Evening surf (01 Oct, local time) - 5ft (1.6m), 14s period with NW swell.
The current surf forecast for Castlerock at 3AM is: 1.3m 15s primary swell from a West-northwest direction (forecast issued at 12:00am October 01). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Oct) | 5.5ft (1.7m) | 15s |
| Afternoon (01 Oct) | 5.5ft (1.7m) | 14s |
| Evening (01 Oct) | 5ft (1.6m) | 14s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Fri afternoon. Very mild (max 15°C on Thu afternoon, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 1 | Friday 2 | Saturday 3 | ||||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WNW 15 | WNW 15 | WNW 16 | WNW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 581 | 1001 | 1225 | 1222 | 1377 | 1203 | 1004 | 792 | 680 | 511 | 479 | 361 | 303 | 331 | 325 | 331 | 314 | 263 | 224 | 177 | 163 | 139 | 137 | 134 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | off | off | off | off | off | off | off | off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 9:21AM1.64m | 9:45PM1.52m | 10:09AM1.51m | 10:37PM1.30m | 11:17AM1.37m | |||||||||||||||||||
Low Tide | 3:11AM0.28m | 3:34PM0.31m | 3:51AM0.41m | 4:34PM0.48m | 4:48AM0.55m | 6:16PM0.62m | ||||||||||||||||||
 | |  |  | |  | | |  |  | |  |  |  |  | | | | | | | | | | |
 | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | 6:59 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | 2 | 6 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 10 | 10 | 11 | 14 | 15 | 14 | 14 | 12 | 13 | 14 | 13 | 15 | 12 | 12 | 12 | 10 | 10 | 10 | 11 | 13 | 14 | 14 | 12 |
Feels °C | 6 | 5 | 6 | 7 | 9 | 10 | 9 | 9 | 8 | 10 | 10 | 8 | 11 | 8 | 10 | 9 | 6 | 6 | 7 | 8 | 8 | 10 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | WNW 15 | WNW 15 | WNW 16 | WNW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | — | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 |
| kJ | 581 | 1001 | 1225 | 1222 | 1377 | 1203 | 1004 | 792 | 680 | 511 | 479 | 361 | 303 | — | 325 | 331 | 314 | 263 | 224 | 177 | 163 | 139 | 137 | 134 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 6 | SE 4 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 6 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | — | — | — | — | — | — | SSE 3 | SSE 3 | SSE 3 | SSE 3 | SSE 3 | SE 3 | NW 11 | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | — | — | — | — | — | 3 | 3 | 2 | 3 | 4 | 3 | 331 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 172 | 150 | 0 | 0 | 9 | 0 | 0 | 0 | 9 | 9 | 9 | 0 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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