Surf Forecasts:
How big are the waves at Castlerock today (10 Nov):
- Morning surf: Morning surf (10 Nov, local time) - 1.5ft (0.4m), 10s period with NW swell.
- Afternoon surf: Afternoon surf (10 Nov, local time) - 1.5ft (0.4m), 9s period with NW swell.
- Evening surf: Evening surf (10 Nov, local time) - 1ft (0.3m), 9s period with NW swell.
The current surf forecast for Castlerock at 3AM is: 0.4m 10s primary swell from a Northwest direction (forecast issued at 11:00pm November 09). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Nov) | 1.5ft (0.4m) | 10s |
| Afternoon (10 Nov) | 1.5ft (0.4m) | 9s |
| Evening (10 Nov) | 1ft (0.3m) | 9s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Mild temperatures (max 9°C on Tue morning, min 6°C on Tue night). Winds increasing (light winds from the ENE on Tue night, fresh winds from the N by Wed night). | ||||||||||||||||||||
Tuesday 10 | Wednesday 11 | Thu 12 | ||||||||||||||||||
9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 9 | NNW 5 | NNW 5 | NNW 4 | NNW 4 | N 5 | N 6 | N 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 42 | 40 | 37 | 34 | 24 | 23 | 23 | 13 | 12 | 12 | 12 | 12 | 7 | 11 | 11 | 15 | 21 | 47 | 132 | 178 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross-on | on | on | on | on | on | on | on |
High Tide | 6:06AM1.74m | 6:19PM1.63m | 6:37AM1.73m | 6:49PM1.55m | ||||||||||||||||
Low Tide | 00:06AM0.18m | 12:28PM0.21m | 00:33AM0.21m | 1:02PM0.26m | 1:02AM0.26m | |||||||||||||||
 |  | | |  | | | |  | | | |  |  | | | | | | | |
 | — | — | — | 7:48 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:52 |
 | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | 4:28 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 7 | 7 | 8 | 8 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 7 | 8 | 8 | 7 | 9 | 9 | 7 | 7 |
Feels °C | 5 | 4 | 4 | 4 | 5 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 4 | 5 | 3 | 1 | 3 | 0 | -2 | -1 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NNW 5 | NNW 5 | NNW 5 | NW 8 | NW 8 | NW 8 | — | — |
| kJ | 42 | 40 | 37 | 34 | 24 | 23 | 23 | 13 | 12 | 12 | 12 | 12 | 4 | 11 | 11 | 2 | 2 | 2 | — | — |
Swell 2 Height (m) Direction Period (s) | NW 7 | NW 7 | ENE 2 | W 15 | — | W 15 | W 14 | — | — | W 16 | W 15 | N 3 | ENE 3 | E 3 | NW 8 | N 8 | N 7 | — | — | — |
| kJ | 2 | 2 | 1 | 5 | — | 4 | 4 | — | — | 5 | 5 | 1 | 1 | 1 | 3 | 5 | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | W 15 | W 15 | — | W 15 | — | — | W 16 | — | — | — | N 9 | WNW 9 | N 8 | N 8 | — | — | — | — | — |
| kJ | — | 4 | 4 | — | 4 | — | — | 5 | — | — | — | 2 | 7 | 5 | 5 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | E 3 | — | — | — | — | — | — | NE 3 | ENE 3 | — | — | — | NNW 4 | NNW 4 | N 5 | N 6 | N 6 |
| kJ | — | — | — | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | 15 | 21 | 47 | 132 | 178 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 16 | 14 | 14 | 16 | 16 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 107 | 180 | 180 | 180 | 260 | 260 | 336 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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