Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 3.5ft (1.1m), 6s period with NNW swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 3.5ft (1.0m), 6s period with NNW swell.
- Evening surf: Evening surf (21 Jul, local time) - 3.5ft (1.0m), 6s period with NNW swell.
The current surf forecast for Ballyhiernan Bay at 2AM is: 1.0m 7s primary swell from a North-northwest direction and 0.4m 10s secondary swell from a West-northwest direction, 0.1m 18s secondary swell from a West direction (forecast issued at 06:00pm July 20). The wind direction is predicted to be onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 3.5ft (1.1m) | 6s |
| Afternoon (21 Jul) | 3.5ft (1.0m) | 6s |
| Evening (21 Jul) | 3.5ft (1.0m) | 6s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 14°C on Wed morning, min 11°C on Tue afternoon). Wind will be generally light. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 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) | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 64 | 73 | 75 | 73 | 83 | 82 | 85 | 85 | 73 | 71 | 71 | 73 | 80 | 85 | 88 | 73 | 70 | 57 | 56 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on |
High Tide | 11:37PM2.88m | 12:03PM2.50m | 00:29AM2.60m | 1:04PM2.37m | |||||||||||||||
Low Tide | 5:10PM0.62m | 5:53AM0.76m | 6:04PM0.87m | 6:47AM0.96m | 7:10PM1.08m | ||||||||||||||
 | |  |  | |  | | | | | | | | | | | | | | |
 | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | 9:55 | — | — | — | — | — | — | — | 9:53 | — | — | — | — | — | — | — | 9:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 14 | 14 | 13 | 14 |
Feels °C | 9 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 7 | 8 | 8 | 9 | 11 | 12 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 10 | NNW 7 | WNW 10 | WNW 10 | NNW 6 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NNW 7 | NNW 7 | WNW 9 | NNW 7 | NNW 7 |
| kJ | 37 | 36 | 75 | 33 | 33 | 82 | 32 | 31 | 29 | 17 | 16 | 16 | 16 | 16 | 88 | 73 | 16 | 57 | 56 |
Swell 2 Height (m) Direction Period (s) | — | — | WNW 10 | W 18 | W 18 | WNW 10 | — | — | — | — | — | — | W 16 | W 16 | WNW 9 | WNW 9 | — | WNW 9 | W 9 |
| kJ | — | — | 34 | 6 | 6 | 32 | — | — | — | — | — | — | 5 | 5 | 16 | 16 | — | 16 | 14 |
Swell 3 Height (m) Direction Period (s) | — | — | W 18 | — | — | W 18 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 6 | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 7 | — | NNW 7 | NNW 7 | — | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | — | — | NNW 7 | — | — |
| kJ | 64 | 73 | — | 73 | 83 | — | 85 | 85 | 73 | 71 | 71 | 73 | 80 | 85 | — | — | 70 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 327 | 142 | 90 | 332 | 332 | 332 | 383 | 1222 | 594 | 336 | 332 | 332 | 332 | 332 | 332 | 142 | 6 | 6 | 6 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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