Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 4.5ft (1.3m), 6s period with NNW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 4.5ft (1.3m), 6s period with NNW swell.
- Evening surf: Evening surf (21 Aug, local time) - 3.5ft (1.0m), 6s period with NNW swell.
The current surf forecast for Ballyhiernan Bay at 2PM is: 1.3m 6s primary swell from a North-northwest direction and 0.3m 8s secondary swell from a West-northwest direction, 0.1m 17s secondary swell from a West direction (forecast issued at 06:00am August 21). The wind direction is predicted to be onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 4.5ft (1.3m) | 6s |
| Afternoon (21 Aug) | 4.5ft (1.3m) | 6s |
| Evening (21 Aug) | 3.5ft (1.0m) | 6s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Very mild (max 15°C on Sat afternoon, min 13°C on Fri morning). Winds decreasing (fresh winds from the N on Fri morning, calm by Sat morning). | |||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||||||||
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) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NW 5 | NW 5 | W 9 | NW 5 | NW 5 | WNW 9 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 139 | 121 | 121 | 112 | 100 | 79 | 67 | 51 | 50 | 39 | 23 | 16 | 14 | 11 | 7 | 7 | 8 | 16 | 19 | 36 | 44 | 55 | 57 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | on | on | on | on | on | glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-on | cross-on | on | cross-off |
High Tide | 1:17PM2.23m | 2:11AM2.11m | 3:09PM2.25m | 3:53AM2.18m | 4:26PM2.43m | ||||||||||||||||||
Low Tide | 6:45AM1.26m | 7:45PM1.34m | 8:25AM1.33m | 9:33PM1.30m | 9:54AM1.21m | ||||||||||||||||||
 |  | | |  | |  | | | | |  | | |  | | |  | | | | | | |
 | 6:13 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:52 | — | — | — | — | — | — | — | 8:49 | — | — | — | — | — | — | — | 8:46 | — |
mm | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 |
Feels °C | 7 | 7 | 7 | 7 | 8 | 8 | 7 | 7 | 8 | 8 | 12 | 11 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | WNW 7 | WNW 7 | WNW 7 | W 8 | NNW 5 | NNW 5 | W 9 | W 9 | NW 4 | NW 5 | NW 5 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 |
| kJ | 39 | 26 | 21 | 20 | 11 | 6 | 10 | 5 | 5 | 6 | 23 | 16 | 14 | 6 | 7 | 7 | 8 | 10 | 19 | 36 | 44 | 55 | 57 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 15 | W 17 | W 17 | W 17 | WNW 8 | W 9 | W 9 | W 9 | WNW 7 | W 9 | W 9 | W 16 | WNW 6 | W 9 | W 8 | WNW 6 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | NW 11 | NW 10 |
| kJ | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 4 | 13 | 14 | 5 | 4 | 6 | 6 | 3 | 16 | 15 | 15 | 13 | 18 | 54 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 16 | W 16 | W 16 | W 16 | W 16 | NW 7 | NW 6 | N 9 | NW 10 | WNW 6 | WNW 6 | W 9 | WNW 6 | WNW 5 | W 16 | NW 11 | W 16 | W 16 |
| kJ | — | — | — | — | — | 5 | 5 | 5 | 5 | 5 | 2 | 2 | 2 | 4 | 4 | 3 | 6 | 3 | 3 | 5 | 5 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | — | — | NW 5 | NW 5 | — | — | — | — | — | — | — | — | — |
| kJ | 139 | 121 | 121 | 112 | 100 | 79 | 67 | 51 | 50 | 39 | — | — | 14 | 11 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 331 | 337 | 318 | 331 | 318 | 318 | 318 | 269 | 259 | 279 | 211 | 318 | 318 | 325 | 211 | 336 | 209 | 209 | 28 | 28 | 28 | 21 | 0 |
Best forecast wave conditions in Donegal | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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