Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (21 Oct):
- Afternoon surf: Afternoon surf (21 Oct, local time) - 11ft (3.5m), 13s period with NW swell.
- Evening surf: Evening surf (21 Oct, local time) - 8ft (2.5m), 13s period with NW swell.
The current surf forecast for Ballyhiernan Bay at 10PM is: 2.3m 13s primary swell from a West-northwest direction and 1.1m 9s secondary swell from a North-northwest direction (forecast issued at 06:00pm October 21). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | - | - |
| Afternoon (21 Oct) | 11ft (3.5m) | 13s |
| Evening (21 Oct) | 8ft (2.5m) | 13s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Thu night. Very mild (max 12°C on Thu afternoon, min 7°C on Thu night). Winds increasing (light winds from the S on Thu night, near gales from the SSE by Sat morning). | |||||||||||||||||||
Wed 21 | Thursday 22 | Friday 23 | |||||||||||||||||
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) | 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 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 3700 | 2783 | 1748 | 1430 | 1126 | 878 | 710 | 625 | 546 | 486 | 478 | 486 | 581 | 814 | 1450 | 1780 | 2480 | 3032 | 3685 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | off | off | off | off | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:51PM2.60m | 4:18AM2.44m | 4:31PM2.83m | 4:55AM2.69m | 5:06PM3.07m | ||||||||||||||
Low Tide | 10:11PM0.87m | 10:12AM0.83m | 10:46PM0.61m | 10:49AM0.60m | |||||||||||||||
 |  |  | |  | |  | |  |  | |  | | | | | | | | |
 | — | — | — | — | — | 8:12 | — | — | — | — | — | — | — | 8:15 | — | — | — | — | — |
 | 6:17 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:13 | — | — |
mm | 1 | — | — | — | 1 | 1 | — | — | — | — | — | 1 | 2 | 2 | 1 | — | — | — | — |
Temp °C | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 11 | 12 | 10 | 9 | 9 | 7 | 8 | 10 | 10 | 10 | 11 | 11 |
Feels °C | 1 | 2 | 4 | 6 | 5 | 4 | 5 | 7 | 8 | 5 | 5 | 6 | -2 | 1 | 0 | -1 | 1 | 1 | 2 |
Swell 1 Height (m) Direction Period (s) | — | 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 | — | — | — | — | — |
| kJ | — | 2783 | 1748 | 1430 | 1126 | 878 | 710 | 625 | 546 | 486 | 478 | 486 | 581 | 814 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | N 7 | NNW 6 | NNW 6 | NNW 6 | N 6 | — | — | — | — | — |
| kJ | — | — | 202 | 149 | 85 | 81 | 55 | 46 | 36 | 24 | 14 | 8 | 8 | 3 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | N 10 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 12 | WNW 12 | WNW 13 | WNW 13 | WNW 14 |
| kJ | 3700 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1450 | 1780 | 2480 | 3032 | 3685 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 325 | 128 | 10 | 6 | 6 | 6 | 5 | 6 | 0 | 0 | 0 | 0 | 36 | 128 | 329 | 389 | 385 | 411 | 380 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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