Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 4.5ft (1.4m), 12s period with WNW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 4.5ft (1.3m), 11s period with WNW swell.
- Evening surf: Evening surf (21 Sep, local time) - 4.5ft (1.3m), 10s period with WNW swell.
The current surf forecast for Ballyhiernan Bay at 7AM is: 1.4m 12s primary swell from a West-northwest direction and 0.6m 8s secondary swell from a North-northwest direction (forecast issued at 12:00am September 21). The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 4.5ft (1.4m) | 12s |
| Afternoon (21 Sep) | 4.5ft (1.3m) | 11s |
| Evening (21 Sep) | 4.5ft (1.3m) | 10s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Tue afternoon. Warm (max 21°C on Mon afternoon, min 12°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
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 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 11 | W 11 | WNW 11 | WNW 11 | WNW 15 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 908 | 616 | 569 | 512 | 447 | 400 | 363 | 356 | 342 | 416 | 516 | 584 | 460 | 415 | 1413 | 1670 | 1629 | 1606 | 1264 | 1226 | 1049 | 864 | 756 | 563 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-on | cross | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | off |
High Tide | 3:23AM2.09m | 3:56PM2.40m | 4:23AM2.29m | 4:43PM2.65m | 5:02AM2.52m | 5:17PM2.90m | ||||||||||||||||||
Low Tide | 9:23AM1.26m | 10:17PM1.13m | 10:19AM1.01m | 10:57PM0.87m | 10:57AM0.76m | |||||||||||||||||||
 | | |  | | | |  | |  | |  | | | |  | | | | | | | | | |
 | — | — | 7:13 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:32 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:28 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 15 | 16 | 20 | 21 | 20 | 18 | 17 | 16 | 16 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 11 |
Feels °C | 8 | 10 | 13 | 14 | 18 | 19 | 19 | 17 | 15 | 13 | 13 | 11 | 12 | 10 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 9 | 11 | 8 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 11 | W 11 | WNW 11 | WNW 11 | WNW 15 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 11 |
| kJ | 908 | 616 | 569 | 512 | 447 | 400 | 363 | 356 | 342 | 416 | 516 | 584 | 460 | 415 | 1413 | 1670 | 1629 | 1606 | 1264 | 1226 | 1049 | 864 | 756 | 563 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 8 | NNW 7 | NNW 7 | — | N 7 | N 7 | N 7 | N 7 | WNW 18 | NW 15 | — | — | — | — | — | — | — | — | — | NW 15 |
| kJ | 85 | 64 | 49 | 31 | 23 | 18 | 10 | — | 1 | 1 | 1 | 1 | 33 | 226 | — | — | — | — | — | — | — | — | — | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 20 | N 8 | N 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 8 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 17 | 28 | 28 | 28 | 0 | 0 | 0 | 0 | 0 | 28 | 26 | 28 | 90 | 21 | 36 | 28 | 36 | 128 | 406 | 128 | 0 | 0 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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