Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 11ft (3.5m), 11s period with NW swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 11ft (3.5m), 12s 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 2AM is: 1.9m 12s primary swell from a West-northwest direction (forecast issued at 06:00pm October 20). The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 11ft (3.5m) | 11s |
| Afternoon (21 Oct) | 11ft (3.5m) | 12s |
| Evening (21 Oct) | 10ft (3.0m) | 13s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 44mm), heaviest during Thu night. Very mild (max 14°C on Tue afternoon, min 8°C on Wed morning). Winds decreasing (gales from the WNW on Wed morning, light winds from the SSE by Thu night). | |||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 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) | NW 13 | NW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | NW 11 | NW 10 | NW 12 | NW 13 | NW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 841 | 841 | 772 | 862 | 1450 | 1857 | 3326 | 3110 | 3422 | 3168 | 2345 | 1430 | 1230 | 952 | 789 | 735 | 653 | 550 | 650 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-off | cross-off | cross-off | off | off |
High Tide | 2:58PM2.38m | 3:33AM2.21m | 3:51PM2.60m | 4:18AM2.44m | 4:31PM2.83m | ||||||||||||||
Low Tide | 9:27PM1.13m | 9:27AM1.06m | 10:11PM0.87m | 10:12AM0.83m | |||||||||||||||
 |  |  |  | | |  | |  |  | |  | | | | |  | | | |
 | — | — | — | — | — | 8:11 | — | — | — | — | — | — | — | 8:12 | — | — | — | — | — |
 | 6:20 | — | — | — | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | — | — | — | 1 | 4 | 5 | 6 | 6 | 1 | — | — | 1 | 1 | — | — | — | — | — | 1 |
Temp °C | 14 | 12 | 11 | 10 | 10 | 10 | 8 | 8 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 11 | 12 | 10 | 10 |
Feels °C | 8 | 6 | 6 | 5 | 6 | 6 | -6 | -3 | -1 | 1 | 3 | 4 | 4 | 4 | 5 | 6 | 7 | 6 | 7 |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | — | — | — | — | NW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 |
| kJ | 841 | 841 | 772 | 862 | 1450 | 1857 | — | — | — | — | 2345 | 1430 | 1230 | 952 | 789 | 735 | 653 | 550 | 650 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NNW 7 | NNW 8 | NNW 8 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 99 | 119 | 81 | 43 | 36 | 30 | 29 | 16 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | SE 3 | SE 3 | — | — | — | NW 11 | NW 10 | NW 12 | NW 13 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 2 | 3 | — | — | — | 3326 | 3110 | 3422 | 3168 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 13 | 5 | 0 | 13 | 21 | 66 | 98 | 322 | 145 | 128 | 6 | 6 | 6 | 6 | 17 | 26 | 0 | 0 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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