Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 11ft (3.5m), 11s period with WNW swell.
- 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 6AM is: 3.0m 10s primary swell from a West-northwest direction and 0.3m 8s secondary swell from a North-northwest direction (forecast issued at 12:00am September 17). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 11ft (3.5m) | 11s |
| 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 ForecastModerate rain (total 10mm), heaviest on Wed night. Very mild (max 16°C on Fri afternoon, min 12°C on Wed night). Winds decreasing (strong winds from the WSW on Wed night, moderate winds from the SSW by Fri morning). | ||||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||||||||||
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 9 | WNW 9 | WNW 10 | WNW 11 | WNW 13 | NW 14 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 11 | WNW 11 | WNW 12 | WNW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 791 | 1038 | 1739 | 3325 | 5534 | 9148 | 10681 | 8635 | 7077 | 5803 | 4596 | 3436 | 2466 | 2835 | 2292 | 1764 | 1546 | 1630 | 1682 | 2174 | 2719 | 3094 | 3568 | 3293 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:18AM2.67m | 10:38PM2.44m | 11:03AM2.43m | 11:32PM2.17m | 12:21PM2.22m | |||||||||||||||||||
Low Tide | 4:04AM0.80m | 4:29PM0.93m | 4:44AM1.07m | 5:23PM1.22m | 5:44AM1.31m | 7:01PM1.41m | ||||||||||||||||||
 |  | |  |  | | |  | | | | | | |  |  | | |  |  | | | | | |
 | — | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:44 | — | — | — | — | — | — | — | 7:40 | — | — | — | — | — | — | — | 7:38 | — |
mm | 1 | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | 2 | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Feels °C | 7 | 4 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 7 | 7 | 7 | 9 | 9 | 9 | 8 | 6 | 5 | 3 | 3 | 4 | 4 | 5 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | NNW 8 | N 8 | N 8 | — | — | — | — | — | NW 14 | NW 13 | NW 13 | NW 12 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 25 | 24 | 12 | 5 | — | — | — | — | — | 5803 | 4596 | 3436 | 2466 | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 10 | WNW 11 | WNW 13 | NW 14 | NW 15 | NW 15 | NW 14 | — | — | — | — | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 11 | WNW 11 | WNW 12 | WNW 12 |
| kJ | 791 | 1038 | 1739 | 3325 | 5534 | 9148 | 10681 | 8635 | 7077 | — | — | — | — | 2835 | 2292 | 1764 | 1546 | 1630 | 1682 | 2174 | 2719 | 3094 | 3568 | 3293 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 391 | 380 | 398 | 469 | 794 | 794 | 794 | 619 | 366 | 779 | 528 | 36 | 803 | 66 | 411 | 366 | 699 | 779 | 772 | 380 | 803 | 380 | 341 | 341 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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