Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (17 Sep):
- Afternoon surf: Afternoon surf (17 Sep, local time) - 15ft (4.5m), 14s period with WNW swell.
- Evening surf: Evening surf (17 Sep, local time) - 15ft (4.5m), 15s period with NW swell.
The current surf forecast for Ballyhiernan Bay at 9PM is: 4.5m 15s primary swell from a Northwest direction (forecast issued at 06:00pm September 17). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | - | - |
| Afternoon (17 Sep) | 15ft (4.5m) | 14s |
| Evening (17 Sep) | 15ft (4.5m) | 15s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Fri morning. Very mild (max 16°C on Fri afternoon, min 12°C on Fri morning). Winds increasing (moderate winds from the SSW on Fri morning, strong winds from the W by Sat night). | |||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||
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) | NW 14 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 11 | WNW 11 | WNW 12 | WNW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 9338 | 10539 | 8694 | 7346 | 5574 | 4596 | 3489 | 2376 | 2946 | 2398 | 1887 | 1731 | 1628 | 1773 | 2210 | 2667 | 2918 | 3366 | 3445 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:38PM2.44m | 11:03AM2.43m | 11:32PM2.17m | 12:21PM2.22m | |||||||||||||||
Low Tide | 4:29PM0.93m | 4:44AM1.07m | 5:23PM1.22m | 5:44AM1.31m | 7:01PM1.41m | ||||||||||||||
 |  |  | | |  |  | | | |  | | | | | | |  |  | |
 | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — |
 | — | 7:44 | — | — | — | — | — | — | — | 7:40 | — | — | — | — | — | — | — | 7:38 | — |
mm | — | — | — | — | — | — | 2 | 2 | 2 | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 14 | 16 | 16 | 16 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 13 |
Feels °C | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 7 | 9 | 10 | 10 | 8 | 6 | 3 | 4 | 3 | 3 | 4 | 3 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | NW 14 | NW 13 | NW 13 | WNW 12 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 5574 | 4596 | 3489 | 2376 | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 14 | NW 15 | NW 15 | NW 14 | — | — | — | — | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 11 | WNW 11 | WNW 12 | WNW 12 |
| kJ | 9338 | 10539 | 8694 | 7346 | — | — | — | — | 2946 | 2398 | 1887 | 1731 | 1628 | 1773 | 2210 | 2667 | 2918 | 3366 | 3445 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 794 | 794 | 475 | 366 | 638 | 36 | 36 | 366 | 366 | 67 | 366 | 699 | 779 | 772 | 380 | 380 | 380 | 341 | 366 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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