Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 4.5ft (1.4m), 5s period with WNW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 5ft (1.5m), 7s period with WNW swell.
- Evening surf: Evening surf (31 Aug, local time) - 3.5ft (1.0m), 6s period with W swell.
The current surf forecast for Ballyhiernan Bay at 11AM is: 1.5m 6s primary swell from a West-northwest direction and 0.2m 6s secondary swell from a North direction (forecast issued at 06:00am August 31). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 4.5ft (1.4m) | 5s |
| Afternoon (31 Aug) | 5ft (1.5m) | 7s |
| Evening (31 Aug) | 3.5ft (1.0m) | 6s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 23mm), heaviest during Tue afternoon. Very mild (max 18°C on Wed afternoon, min 13°C on Mon night). Winds decreasing (fresh winds from the SW on Tue morning, calm by Tue night). | |||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||||||
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 | WNW 5 | WNW 6 | WNW 7 | WNW 7 | W 10 | W 6 | W 6 | W 6 | W 7 | W 7 | W 8 | W 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | NNW 8 | NNW 8 | W 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 39 | 61 | 172 | 209 | 180 | 186 | 74 | 80 | 98 | 128 | 195 | 307 | 412 | 301 | 192 | 168 | 138 | 79 | 79 | 55 | 54 | 96 | 106 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-on | glassy | glassy | cross-off | off | cross-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 | 2:36PM0.13m | 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 | 2 | 10 | 3 | 1 | — | — | — | 2 | 2 | 1 | — | — |
Temp °C | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 13 | 13 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 16 | 18 | 17 |
Feels °C | 9 | 7 | 8 | 9 | 10 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 13 | 13 | 14 | 15 | 13 | 11 | 11 | 10 | 14 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | W 9 | — | N 6 | WNW 10 | — | NW 6 | NNW 6 | W 6 | NNW 6 | W 8 | NNW 6 | N 6 | N 6 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 39 | — | 3 | 35 | — | 54 | 34 | 80 | 12 | 36 | 8 | 3 | 3 | 301 | 192 | 168 | 138 | 79 | 79 | 55 | 54 | 96 | 72 |
Swell 2 Height (m) Direction Period (s) | NNW 7 | — | — | — | — | — | W 9 | NNW 6 | WNW 9 | NNW 6 | — | — | — | N 6 | N 8 | N 7 | N 7 | NNW 6 | N 6 | N 6 | W 7 | W 7 | NNW 11 |
| kJ | 9 | — | — | — | — | — | 43 | 22 | 27 | 13 | — | — | — | 3 | 5 | 4 | 10 | 21 | 19 | 20 | 40 | 28 | 25 |
Swell 3 Height (m) Direction Period (s) | WNW 11 | — | — | — | — | — | — | WNW 9 | — | — | — | — | — | W 18 | W 18 | W 18 | W 17 | W 16 | N 14 | NNW 8 | N 12 | W 16 | W 16 |
| kJ | 24 | — | — | — | — | — | — | 28 | — | — | — | — | — | 6 | 6 | 6 | 6 | 5 | 4 | 13 | 12 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | NW 3 | WNW 5 | WNW 6 | WNW 7 | WNW 7 | W 10 | W 6 | — | W 6 | W 7 | W 7 | W 8 | W 8 | — | — | — | — | — | — | — | — | WSW 4 | W 7 |
| kJ | 5 | 61 | 172 | 209 | 180 | 186 | 74 | — | 98 | 128 | 195 | 307 | 412 | — | — | — | — | — | — | — | — | 13 | 106 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 346 | 409 | 422 | 366 | 146 | 146 | 146 | 28 | 28 | 128 | 146 | 368 | 28 | 28 | 0 | 0 | 0 | 0 | 7 | 0 | 17 | 14 | 6 |
Best forecast wave conditions in Donegal | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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