Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (30 Oct):
- Morning surf: Morning surf (30 Oct, local time) - 4.5ft (1.3m), 13s period with WNW swell.
- Afternoon surf: Afternoon surf (30 Oct, local time) - 4ft (1.2m), 12s period with WNW swell.
- Evening surf: Evening surf (30 Oct, local time) - 4ft (1.2m), 12s period with WNW swell.
The current surf forecast for Ballyhiernan Bay at 3PM is: 1.2m 12s primary swell from a West-northwest direction and 0.3m 12s secondary swell from a North-northwest direction (forecast issued at 11:00am October 30). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Oct) | 4.5ft (1.3m) | 13s |
| Afternoon (30 Oct) | 4ft (1.2m) | 12s |
| Evening (30 Oct) | 4ft (1.2m) | 12s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Sat morning. Very mild (max 14°C on Fri afternoon, min 9°C on Sun morning). Winds decreasing (strong winds from the SSE on Fri morning, light winds from the S by Fri night). | |||||||||||||||||||||
Fri 30 | Saturday 31 | Sunday 1 | |||||||||||||||||||
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 | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | NW 15 | WNW 13 | WNW 13 | WNW 12 | WNW 13 | WNW 13 | WNW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 13 | WNW 12 | NW 12 | NW 12 | NW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 581 | 554 | 447 | 432 | 439 | 360 | 863 | 888 | 797 | 809 | 737 | 714 | 617 | 607 | 607 | 617 | 585 | 480 | 514 | 497 | 403 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | off | off | cross-off | cross-on | on | on | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on |
High Tide | 8:22AM3.20m | 8:50PM2.87m | 9:18AM3.00m | 9:54PM2.57m | 10:29AM2.81m | ||||||||||||||||
Low Tide | 2:34PM0.38m | 2:51AM0.56m | 3:36PM0.63m | 3:52AM0.79m | 4:56PM0.83m | ||||||||||||||||
 |  | |  | |  | | |  | | |  | | | |  | | | | | | |
 | 7:30 | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — |
 | — | — | 4:58 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:52 | — | — |
mm | — | — | — | — | — | 1 | — | 2 | 3 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 13 | 14 | 14 | 13 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 |
Feels °C | 4 | 5 | 7 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 7 | 6 | 5 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 |
Swell 1 Height (m) Direction Period (s) | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 13 | WNW 13 | WNW 12 | WNW 13 | WNW 13 | WNW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 13 | WNW 12 | NW 12 | NW 12 | NW 11 |
| kJ | 581 | 554 | 447 | 432 | 439 | 325 | 863 | 888 | 797 | 809 | 737 | 714 | 617 | 607 | 607 | 617 | 585 | 480 | 514 | 497 | 403 |
Swell 2 Height (m) Direction Period (s) | NNW 11 | NNW 12 | NNW 12 | NW 15 | NW 15 | NW 15 | N 10 | N 10 | N 10 | N 10 | N 9 | N 9 | N 9 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 7 | — |
| kJ | 25 | 26 | 26 | 84 | 191 | 360 | 18 | 18 | 17 | 7 | 6 | 6 | 6 | 6 | 1 | 1 | 1 | 1 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | NNW 11 | NNW 11 | N 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 24 | 23 | 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 4 | S 4 | S 3 | — | — | — | — | — | — | — | — | — | — | — | — | NNW 4 | — | — | — |
| kJ | 21 | 21 | 15 | 6 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 11 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 91 | 355 | 26 | 5 | 0 | 0 | 0 | 0 | 0 | 28 | 66 | 130 | 90 | 90 | 83 | 83 | 90 | 128 | 83 | 59 | 47 |
Best forecast wave conditions in Donegal | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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