Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 5ft (1.5m), 6s period with WNW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 4.5ft (1.4m), 7s period with WNW swell.
- Evening surf: Evening surf (31 Aug, local time) - 3.5ft (1.1m), 6s period with W swell.
The current surf forecast for Ballyhiernan Bay at 5AM is: 0.5m 9s primary swell from a West direction and 0.3m 7s secondary swell from a North-northwest direction, 0.5m 3s secondary swell from a Northwest direction (forecast issued at 12:00am August 31). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 5ft (1.5m) | 6s |
| Afternoon (31 Aug) | 4.5ft (1.4m) | 7s |
| Evening (31 Aug) | 3.5ft (1.1m) | 6s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Tue afternoon. Very mild (max 17°C on Wed afternoon, min 13°C on Tue afternoon). Winds decreasing (fresh winds from the NW on Sun night, calm by Tue afternoon). | ||||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||||||||||
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) | W 9 | W 9 | WNW 5 | WNW 6 | WNW 7 | WNW 7 | WNW 6 | W 6 | W 6 | W 6 | W 6 | W 7 | W 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 7 | W 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 56 | 39 | 61 | 242 | 215 | 150 | 121 | 89 | 78 | 84 | 92 | 128 | 313 | 301 | 264 | 223 | 159 | 130 | 105 | 79 | 60 | 41 | 86 | 176 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | glassy | cross | cross-off | off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 8:38AM3.15m | 8:54PM3.39m | 9:12AM3.08m | 9:29PM3.23m | 9:49AM2.95m | |||||||||||||||||||
Low Tide | 2:30AM0.10m | 2:36PM0.13m | 3:03AM0.18m | 3:11PM0.26m | 3:38AM0.34m | 3:51PM0.45m | ||||||||||||||||||
 |  |  | | | | |  | |  | | |  | | | | | | | | | | | | |
 | — | 6:33 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:27 | — | — | — | — | — | — | — | 8:24 | — | — | — | — | — | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 4 | 3 | 1 | — | — | — | 1 | 1 | — | 1 | — |
Temp °C | 15 | 15 | 14 | 14 | 14 | 15 | 14 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 17 | 17 | 17 |
Feels °C | 12 | 10 | 7 | 7 | 8 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 11 | 10 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 16 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | — | N 6 | WNW 10 | W 10 | W 10 | NNW 6 | W 6 | NNW 6 | W 8 | W 8 | N 6 | N 6 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 7 | N 8 |
| kJ | 56 | 39 | — | 1 | 34 | 70 | 68 | 26 | 78 | 22 | 48 | 34 | 7 | 3 | 264 | 223 | 159 | 130 | 105 | 79 | 60 | 41 | 86 | 46 |
Swell 2 Height (m) Direction Period (s) | NNW 7 | NNW 7 | — | — | — | — | — | W 9 | NNW 6 | WNW 9 | NNW 6 | NNW 6 | — | — | N 6 | N 6 | N 7 | N 6 | N 6 | NNW 6 | NNW 6 | NNW 8 | N 8 | NNW 11 |
| kJ | 15 | 9 | — | — | — | — | — | 43 | 22 | 27 | 14 | 8 | — | — | 3 | 3 | 9 | 7 | 6 | 11 | 13 | 36 | 46 | 24 |
Swell 3 Height (m) Direction Period (s) | W 11 | WNW 11 | — | — | — | — | — | — | WNW 9 | — | — | — | — | — | N 8 | W 18 | W 18 | W 17 | W 16 | N 13 | NW 8 | N 12 | N 11 | W 16 |
| kJ | 10 | 24 | — | — | — | — | — | — | 28 | — | — | — | — | — | 1 | 6 | 6 | 6 | 5 | 4 | 3 | 11 | 23 | 5 |
Wind waves Height (m) Direction Period (s) | — | NW 3 | WNW 5 | WNW 6 | WNW 7 | WNW 7 | WNW 6 | W 6 | — | W 6 | W 6 | W 7 | W 8 | W 8 | — | — | — | — | — | — | — | WSW 4 | — | W 7 |
| kJ | — | 5 | 61 | 242 | 215 | 150 | 121 | 89 | — | 84 | 92 | 128 | 313 | 301 | — | — | — | — | — | — | — | 13 | — | 176 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 28 | 341 | 409 | 422 | 366 | 146 | 72 | 146 | 28 | 91 | 123 | 146 | 146 | 67 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 6 | 17 | 146 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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