Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (01 Sep):
- Afternoon surf: Afternoon surf (01 Sep, local time) - 4.5ft (1.4m), 7s period with WNW swell.
- Evening surf: Evening surf (01 Sep, local time) - 3.5ft (1.0m), 6s period with W swell.
The current surf forecast for Ballyhiernan Bay at 12AM is: 1.0m 6s primary swell from a West direction and 0.5m 6s secondary swell from a North-northwest direction, 0.5m 9s secondary swell from a West direction (forecast issued at 06:00pm August 31). The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Sep) | - | - |
| Afternoon (01 Sep) | 4.5ft (1.4m) | 7s |
| Evening (01 Sep) | 3.5ft (1.0m) | 6s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Tue morning. Very mild (max 17°C on Wed afternoon, min 14°C on Mon afternoon). Winds decreasing (strong winds from the SW on Tue morning, calm by Tue night). | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||
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 7 | W 10 | W 6 | W 6 | W 7 | W 7 | W 8 | W 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | NNW 8 | W 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 150 | 184 | 76 | 92 | 104 | 214 | 337 | 515 | 432 | 264 | 197 | 163 | 142 | 116 | 79 | 58 | 57 | 73 | 83 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | glassy | off | off | off | off | off | cross-off | cross-off |
High Tide | 8:54PM3.39m | 9:12AM3.08m | 9:29PM3.23m | 9:49AM2.95m | |||||||||||||||
Low Tide | 2:36PM0.13m | 3:03AM0.18m | 3:11PM0.26m | 3:38AM0.34m | 3:51PM0.45m | ||||||||||||||
 | |  |  | |  |  | | | | |  | | | | |  | | | |
 | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — |
 | — | 8:27 | — | — | — | — | — | — | — | 8:24 | — | — | — | — | — | — | — | 8:22 | — |
mm | — | — | 1 | — | — | — | 1 | 2 | 2 | 2 | 1 | 1 | — | — | 1 | 2 | 1 | — | — |
Temp °C | 15 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 17 | 17 |
Feels °C | 10 | 9 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 12 | 13 | 14 | 13 | 12 | 10 | 10 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | W 10 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | N 6 | N 6 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | NNW 8 | NNW 8 |
| kJ | 70 | 49 | 33 | 21 | 12 | 8 | 4 | 3 | 3 | 264 | 197 | 163 | 142 | 116 | 79 | 58 | 57 | 73 | 75 |
Swell 2 Height (m) Direction Period (s) | — | — | W 9 | WNW 9 | WNW 9 | — | — | — | — | N 6 | N 6 | N 6 | N 7 | N 8 | NNW 7 | NNW 7 | NNW 8 | W 7 | NNW 11 |
| kJ | — | — | 43 | 28 | 27 | — | — | — | — | 3 | 3 | 3 | 10 | 5 | 17 | 17 | 54 | 39 | 39 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 18 | W 18 | N 8 | W 17 | W 16 | N 8 | N 8 | N 12 | NNW 11 | W 16 |
| kJ | — | — | — | — | — | — | — | — | — | 6 | 6 | 5 | 6 | 5 | 5 | 5 | 12 | 42 | 5 |
Wind waves Height (m) Direction Period (s) | WNW 7 | W 10 | W 6 | W 6 | W 7 | W 7 | W 8 | W 8 | W 8 | — | — | — | — | — | — | — | — | WSW 4 | W 7 |
| kJ | 150 | 184 | 76 | 92 | 104 | 214 | 337 | 515 | 432 | — | — | — | — | — | — | — | — | 16 | 83 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 146 | 6 | 146 | 17 | 146 | 146 | 146 | 146 | 146 | 28 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 10 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
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