Surf Forecasts:
How big are the waves at Ballyhiernan Bay today (11 Sep):
- Morning surf: Morning surf (11 Sep, local time) - 5ft (1.6m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (11 Sep, local time) - 5ft (1.6m), 9s period with WNW swell.
- Evening surf: Evening surf (11 Sep, local time) - 5.5ft (1.7m), 10s period with WNW swell.
The current surf forecast for Ballyhiernan Bay at 7PM is: 1.5m 9s primary swell from a West-northwest direction and 0.7m 12s secondary swell from a Northwest direction (forecast issued at 12:00pm September 11). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Sep) | 5ft (1.6m) | 10s |
| Afternoon (11 Sep) | 5ft (1.6m) | 9s |
| Evening (11 Sep) | 5.5ft (1.7m) | 10s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Fri night. Very mild (max 17°C on Fri night, min 11°C on Sun morning). Winds decreasing (strong winds from the SW on Fri night, light winds from the NNW by Sun afternoon). | |||||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | |||||||||||||||||||
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 9 | WNW 9 | WNW 9 | WNW 9 | WNW 11 | WNW 11 | WNW 13 | WNW 11 | WNW 12 | WNW 12 | WNW 13 | WNW 12 | NW 12 | NW 12 | WNW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 363 | 387 | 426 | 368 | 726 | 551 | 1514 | 1593 | 1718 | 1694 | 1597 | 1177 | 1047 | 872 | 634 | 551 | 445 | 335 | 245 | 208 | 177 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | off | off | off | cross-off | cross-off | cross-on | cross-on | on | on | cross-on | cross | cross-off | cross-off | off | on | off | off |
High Tide | 7:13PM3.72m | 7:32AM3.32m | 7:48PM3.68m | 8:05AM3.31m | 8:22PM3.53m | ||||||||||||||||
Low Tide | 12:51PM-0.06m | 1:22AM-0.12m | 1:27PM-0.10m | 1:56AM-0.07m | 2:03PM-0.03m | ||||||||||||||||
 |  | |  |  |  |  |  | | | | |  | | | | | | | | | |
 | 6:54 | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | — | — | 7:59 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | — | — | — | 7:53 | — |
mm | — | — | — | — | — | 9 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 16 | 16 | 13 | 12 | 14 | 17 | 17 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 11 | 15 | 16 | 17 | 17 |
Feels °C | 10 | 10 | 11 | 14 | 7 | 5 | 9 | 11 | 12 | 12 | 12 | 12 | 11 | 12 | 11 | 10 | 9 | 13 | 15 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 11 | WNW 11 | WNW 13 | N 10 | WNW 12 | WNW 12 | WNW 13 | WNW 12 | NW 12 | NW 12 | WNW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 |
| kJ | 363 | 387 | 426 | 368 | 726 | 551 | 1514 | 2 | 1718 | 1694 | 1597 | 1177 | 1047 | 872 | 634 | 551 | 445 | 335 | 245 | 208 | 177 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NW 12 | NW 15 | NW 13 | — | — | N 10 | — | — | — | — | — | — | — | WSW 9 | W 9 | W 9 | W 9 | W 9 |
| kJ | — | — | — | 137 | 77 | 398 | — | — | 2 | — | — | — | — | — | — | — | 26 | 58 | 42 | 41 | 40 |
Swell 3 Height (m) Direction Period (s) | — | — | — | NW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 16 | NNW 15 | NNW 14 |
| kJ | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 25 | 23 | 69 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WNW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 1593 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 60 | 36 | 28 | 0 | 50 | 50 | 366 | 366 | 67 | 146 | 128 | 90 | 90 | 28 | 14 | 0 | 0 | 0 | 5 | 0 | 0 |
Best forecast wave conditions in Donegal | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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