Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (20 Sep):
- Afternoon surf: Afternoon surf (20 Sep, local time) - 8ft (2.4m), 11s period with NW swell.
- Evening surf: Evening surf (20 Sep, local time) - 6.5ft (2.0m), 12s period with WNW swell.
The current surf forecast for Ballyhiernan Bay at 10PM is: 2.0m 12s primary swell from a West-northwest direction and 0.7m 8s secondary swell from a North-northwest direction (forecast issued at 06:00pm September 20). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | - | - |
| Afternoon (20 Sep) | 8ft (2.4m) | 11s |
| Evening (20 Sep) | 6.5ft (2.0m) | 12s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 21°C on Mon afternoon, min 12°C on Sun afternoon). Wind will be generally light. | |||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | |||||||||||||||||
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 11 | NW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 10 | WNW 11 | WNW 11 | WNW 11 | WNW 15 | WNW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 1375 | 1213 | 1117 | 908 | 616 | 569 | 512 | 447 | 350 | 339 | 307 | 335 | 394 | 562 | 599 | 452 | 407 | 1452 | 1670 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross | cross-on | on | on | glassy |
High Tide | 2:32PM2.20m | 3:23AM2.09m | 3:56PM2.40m | 4:23AM2.29m | 4:43PM2.65m | ||||||||||||||
Low Tide | 9:09PM1.35m | 9:23AM1.26m | 10:17PM1.13m | 10:19AM1.01m | |||||||||||||||
 |  |  | | | | |  | | |  | |  | |  | | | | | |
 | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — |
 | — | 7:36 | — | — | — | — | — | — | — | 7:32 | — | — | — | — | — | — | — | 7:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 12 | 12 | 12 | 13 | 14 | 15 | 16 | 20 | 21 | 20 | 18 | 17 | 17 | 15 | 12 | 13 | 12 | 13 | 12 |
Feels °C | 7 | 9 | 9 | 7 | 10 | 13 | 14 | 18 | 19 | 19 | 16 | 15 | 14 | 13 | 10 | 12 | 10 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | NW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 10 | WNW 11 | WNW 11 | WNW 11 | WNW 15 | WNW 14 |
| kJ | 1375 | 1213 | 1117 | 908 | 616 | 569 | 512 | 447 | 350 | 339 | 307 | 335 | 394 | 562 | 599 | 452 | 407 | 1452 | 1670 |
Swell 2 Height (m) Direction Period (s) | — | — | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 8 | NNW 7 | — | — | N 7 | N 7 | N 7 | N 7 | WNW 19 | WNW 17 | — | — |
| kJ | — | — | 68 | 73 | 64 | 49 | 31 | 23 | 18 | — | — | 1 | 1 | 1 | 1 | 34 | 119 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 21 | N 8 | NW 15 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 1 | 104 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 128 | 0 | 0 | 0 | 0 | 17 | 28 | 28 | 28 | 0 | 0 | 0 | 0 | 28 | 26 | 28 | 83 | 83 | 0 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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