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 8AM is: 1.7m 15s primary swell from a West-northwest direction (forecast issued at 12:00am October 01). The wind direction is predicted to be offshore and the swell rating is 4.
| 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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