Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 5ft (1.5m), 7s period with W swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 5.5ft (1.7m), 8s period with W swell.
- Evening surf: Evening surf (18 Aug, local time) - 6.5ft (2.0m), 11s period with WNW swell.
The current surf forecast for Ballyhiernan Bay at 5AM is: 1.4m 7s primary swell from a West direction and 0.2m 7s secondary swell from a North direction, 0.1m 19s secondary swell from a West direction (forecast issued at 12:00am August 18). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 5ft (1.5m) | 7s |
| Afternoon (18 Aug) | 5.5ft (1.7m) | 8s |
| Evening (18 Aug) | 6.5ft (2.0m) | 11s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Wed morning. Very mild (max 16°C on Mon night, min 13°C on Tue night). Winds increasing (light winds from the NE on Wed night, fresh winds from the N by Thu afternoon). | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||||
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 6 | W 7 | W 7 | W 8 | W 8 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 8 | NNW 8 | N 7 | N 7 | N 7 | N 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 148 | 168 | 214 | 253 | 324 | 442 | 732 | 920 | 837 | 875 | 763 | 678 | 612 | 550 | 471 | 416 | 358 | 295 | 223 | 324 | 245 | 269 | 295 | 206 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:07PM3.13m | 10:25AM2.80m | 10:45PM2.81m | 11:05AM2.59m | 11:28PM2.50m | 11:56AM2.38m | ||||||||||||||||||
Low Tide | 4:16AM0.50m | 4:27PM0.60m | 4:54AM0.78m | 5:12PM0.90m | 5:39AM1.05m | 6:12PM1.18m | ||||||||||||||||||
 | |  | | | | | | |  |  | | | |  |  | | | | |  |  | | | |
 | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:59 | — | — | — | — | — | — | — | 8:55 | — | — | — | — | — | — | — | 8:53 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 2 | — | 1 | — | — | 1 | 1 | 1 | — | — | — | — |
Temp °C | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 15 | 15 | 15 | 15 | 14 | 15 | 13 | 14 | 13 | 13 | 13 | 13 |
Feels °C | 11 | 10 | 9 | 9 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 13 | 13 | 14 | 14 | 11 | 13 | 10 | 8 | 7 | 6 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | N 7 | N 7 | N 7 | N 7 | N 7 | N 6 | — | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 8 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 4 | 4 | 3 | 1 | 1 | 1 | — | 920 | 837 | 875 | 763 | 678 | 612 | 550 | 471 | 416 | 358 | 295 | 223 | 129 | 90 | 66 | 64 | 44 |
Swell 2 Height (m) Direction Period (s) | W 18 | W 19 | — | W 16 | W 16 | W 17 | — | — | — | — | W 18 | W 17 | W 17 | — | — | — | W 16 | N 9 | WNW 10 | W 16 | W 16 | W 16 | W 16 | W 15 |
| kJ | 6 | 7 | — | 5 | 5 | 6 | — | — | — | — | 6 | 6 | 6 | — | — | — | 5 | 7 | 197 | 5 | 5 | 5 | 5 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 16 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 7 | W 7 | W 8 | W 8 | WNW 9 | WNW 10 | — | — | — | — | — | — | — | — | — | NNE 4 | N 5 | — | NNW 8 | N 7 | N 7 | N 7 | N 7 |
| kJ | 148 | 168 | 214 | 253 | 324 | 442 | 732 | — | — | — | — | — | — | — | — | — | 6 | 21 | — | 324 | 245 | 269 | 295 | 206 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 329 | 346 | 445 | 341 | 366 | 411 | 411 | 28 | 28 | 28 | 60 | 60 | 0 | 28 | 21 | 7 | 59 | 21 | 21 | 92 | 348 | 347 | 347 | 347 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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