Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 15ft (4.5m), 10s period with NW swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 11ft (3.5m), 13s period with NW swell.
- Evening surf: Evening surf (21 Oct, local time) - 10ft (3.0m), 13s period with NW swell.
The current surf forecast for Ballyhiernan Bay at 11AM is: 4.0m 10s primary swell from a Northwest direction (forecast issued at 06:00am October 21). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 15ft (4.5m) | 10s |
| Afternoon (21 Oct) | 11ft (3.5m) | 13s |
| Evening (21 Oct) | 10ft (3.0m) | 13s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 24mm), heaviest during Wed morning. Very mild (max 12°C on Thu afternoon, min 8°C on Wed morning). Winds decreasing (near gales from the WNW on Wed morning, light winds from the SSW by Thu night). | |||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 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) | WNW 12 | WNW 12 | NW 10 | NW 10 | NW 13 | NW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 13 | WNW 13 | WNW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1256 | 1913 | 4254 | 2388 | 3627 | 2937 | 1879 | 1430 | 1230 | 952 | 789 | 658 | 546 | 486 | 478 | 550 | 617 | 726 | 1323 | 1613 | 2128 | 2976 | 4062 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:33AM2.21m | 3:51PM2.60m | 4:18AM2.44m | 4:31PM2.83m | 4:55AM2.69m | 5:06PM3.07m | |||||||||||||||||
Low Tide | 9:27AM1.06m | 10:11PM0.87m | 10:12AM0.83m | 10:46PM0.61m | 10:49AM0.60m | ||||||||||||||||||
 | |  |  | |  |  |  | | |  | |  | | | |  | | |  | |  | | |
 | — | 8:11 | — | — | — | — | — | — | — | 8:12 | — | — | — | — | — | — | — | 8:15 | — | — | — | — | — |
 | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:13 | — | — |
mm | 7 | 8 | 4 | 7 | 2 | — | — | — | — | — | — | — | — | — | — | — | 3 | 5 | 1 | — | — | 1 | 1 |
Temp °C | 10 | 10 | 8 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 12 | 10 | 9 | 9 | 8 | 9 | 10 | 10 | 11 | 11 | 11 |
Feels °C | 7 | -1 | -5 | -2 | -1 | 1 | 2 | 3 | 4 | 5 | 6 | 6 | 8 | 6 | 6 | 6 | 2 | 1 | 1 | -1 | 2 | 1 | 0 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 12 | — | — | — | — | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | N 10 | N 10 | N 9 | — | — |
| kJ | 1256 | 1913 | — | — | — | — | 1879 | 1430 | 1230 | 952 | 789 | 658 | 546 | 486 | 478 | 550 | 617 | 726 | 2 | 2 | 2 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 121 | 102 | 82 | 77 | 54 | 55 | 42 | 27 | 15 | 15 | 9 | 7 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 10 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NW 10 | NW 10 | NW 13 | NW 13 | — | — | — | — | — | — | — | — | — | — | — | — | WNW 12 | WNW 12 | WNW 13 | WNW 13 | WNW 13 |
| kJ | — | — | 4254 | 2388 | 3627 | 2937 | — | — | — | — | — | — | — | — | — | — | — | — | 1323 | 1613 | 2128 | 2976 | 4062 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 21 | 72 | 112 | 331 | 145 | 128 | 128 | 6 | 6 | 6 | 17 | 0 | 0 | 0 | 0 | 98 | 128 | 346 | 346 | 411 | 411 | 239 |
Best forecast wave conditions in Donegal | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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