Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (04 Sep):
- Morning surf: Morning surf (04 Sep, local time) - 13ft (4.0m), 12s period with WNW swell.
- Afternoon surf: Afternoon surf (04 Sep, local time) - 11ft (3.5m), 12s period with WNW swell.
- Evening surf: Evening surf (04 Sep, local time) - 10ft (3.0m), 12s period with WNW swell.
The current surf forecast for Ballyhiernan Bay at 1AM is: 2.1m 9s primary swell from a West direction and 0.3m 10s secondary swell from a North direction (forecast issued at 06:00pm September 03). The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Sep) | 13ft (4.0m) | 12s |
| Afternoon (04 Sep) | 11ft (3.5m) | 12s |
| Evening (04 Sep) | 10ft (3.0m) | 12s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Thu afternoon. Very mild (max 19°C on Sun morning, min 14°C on Thu night). Winds decreasing (near gales from the WSW on Thu night, light winds from the SSE by Sat afternoon). | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | |||||||||||||||||
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) | W 8 | W 8 | W 9 | W 9 | W 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | NW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 287 | 432 | 562 | 780 | 1343 | 3286 | 4366 | 3560 | 3244 | 3171 | 2426 | 2205 | 1748 | 1395 | 974 | 718 | 541 | 378 | 300 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | off | off |
High Tide | 10:59PM2.72m | 11:32AM2.57m | 00:12AM2.45m | 1:03PM2.44m | |||||||||||||||
Low Tide | 4:40PM0.69m | 5:12AM0.82m | 5:47PM0.94m | 6:28AM1.04m | 7:27PM1.08m | ||||||||||||||
 |  |  |  | |  |  |  | | |  |  |  | | | | | | | |
 | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | — | 8:20 | — | — | — | — | — | — | — | 8:16 | — | — | — | — | — | — | — | 8:15 | — |
mm | — | 1 | 1 | — | — | — | 1 | — | — | 1 | — | 1 | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 15 |
Feels °C | 9 | 10 | 9 | 8 | 5 | 4 | 7 | 7 | 5 | 6 | 7 | 7 | 8 | 9 | 10 | 10 | 13 | 13 | 8 |
Swell 1 Height (m) Direction Period (s) | N 10 | NNW 10 | NNW 10 | N 10 | N 9 | N 9 | N 9 | N 9 | — | — | — | — | — | WNW 11 | NW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 |
| kJ | 49 | 31 | 31 | 16 | 15 | 6 | 6 | 2 | — | — | — | — | — | 1395 | 974 | 718 | 541 | 378 | 300 |
Swell 2 Height (m) Direction Period (s) | W 17 | W 17 | W 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 6 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | W 9 | W 9 | W 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | — | — | — | — | — | S 2 |
| kJ | 287 | 432 | 562 | 780 | 1343 | 3286 | 4366 | 3560 | 3244 | 3171 | 2426 | 2205 | 1748 | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 446 | 146 | 67 | 346 | 341 | 421 | 619 | 645 | 794 | 380 | 619 | 366 | 146 | 36 | 67 | 67 | 36 | 0 | 21 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
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