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) - 4ft (1.2m), 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 1AM is: 1.6m 7s primary swell from a North-northwest direction and 0.5m 8s secondary swell from a West-northwest direction, 0.1m 15s secondary swell from a West direction (forecast issued at 06:00pm August 20). 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) | 4ft (1.2m) | 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 Thu night. Very mild (max 15°C on Sat morning, min 12°C on Fri afternoon). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the SW by Sun morning). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||
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) | N 7 | N 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | N 5 | W 9 | NNW 5 | NW 5 | NW 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 311 | 247 | 247 | 206 | 143 | 139 | 130 | 112 | 112 | 94 | 65 | 51 | 40 | 31 | 13 | 14 | 16 | 13 | 11 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:29AM2.24m | 1:17PM2.23m | 2:11AM2.11m | 3:09PM2.25m | |||||||||||||||
Low Tide | 6:12PM1.18m | 6:45AM1.26m | 7:45PM1.34m | 8:25AM1.33m | 9:33PM1.30m | ||||||||||||||
 |  |  |  | |  | | |  | |  | | | | | | | | | |
 | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | 8:53 | — | — | — | — | — | — | — | 8:52 | — | — | — | — | — | — | — | 8:49 | — |
mm | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 15 | 14 | 14 | 14 | 14 |
Feels °C | 7 | 5 | 5 | 6 | 7 | 7 | 7 | 7 | 6 | 7 | 8 | 8 | 8 | 9 | 12 | 11 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | W 8 | N 5 | N 5 | W 9 | W 9 | NW 5 |
| kJ | 68 | 65 | 45 | 41 | 27 | 26 | 21 | 12 | 11 | 6 | 10 | 5 | 5 | 6 | 13 | 12 | 14 | 6 | 11 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 16 | W 15 | W 15 | W 15 | W 15 | W 17 | W 17 | W 17 | W 9 | W 9 | W 9 | W 9 | WNW 7 | W 9 | W 9 | NW 6 | WNW 6 | W 9 |
| kJ | 5 | 5 | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 4 | 6 | 14 | 2 | 4 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 16 | W 16 | W 16 | W 16 | W 16 | NW 7 | NW 6 | W 16 | NW 10 | WNW 6 |
| kJ | — | — | — | — | — | — | — | — | — | 5 | 5 | 5 | 5 | 5 | 2 | 2 | 5 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | N 7 | N 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | WNW 5 | WNW 5 | NNW 5 | NW 5 | — |
| kJ | 311 | 247 | 247 | 206 | 143 | 139 | 130 | 112 | 112 | 94 | 65 | 51 | 40 | 31 | 11 | 9 | 16 | 13 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1117 | 348 | 318 | 279 | 337 | 318 | 406 | 406 | 318 | 318 | 318 | 210 | 259 | 279 | 151 | 331 | 331 | 209 | 151 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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