Surf Forecasts:
How big are the waves at Trá Na Rosan today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 5ft (1.5m), 7s period with W swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 5.5ft (1.7m), 8s period with W swell.
- Evening surf: Evening surf (18 Aug, local time) - 7ft (2.1m), 11s period with WNW swell.
The current surf forecast for Trá Na Rosan at 2AM is: 1.3m 6s primary swell from a West direction and 0.2m 7s secondary swell from a North direction, 0.1m 18s secondary swell from a West direction (forecast issued at 06:00pm August 17). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 5ft (1.5m) | 7s |
| Afternoon (18 Aug) | 5.5ft (1.7m) | 8s |
| Evening (18 Aug) | 7ft (2.1m) | 11s |
Table - waves today at Trá Na Rosan. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Tue night. Very mild (max 16°C on Mon afternoon, min 13°C on Thu morning). Winds increasing (light winds from the SSE on Mon afternoon, fresh winds from the N by Thu morning). | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||
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) | W 8 | W 8 | W 6 | W 6 | W 7 | W 7 | W 8 | W 8 | W 9 | WNW 10 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 46 | 45 | 96 | 136 | 168 | 203 | 253 | 326 | 483 | 748 | 1046 | 1008 | 1124 | 1020 | 898 | 794 | 637 | 502 | 516 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on |
High Tide | 10:05PM3.20m | 10:23AM2.86m | 10:43PM2.87m | 11:03AM2.65m | |||||||||||||||
Low Tide | 3:44PM0.32m | 4:13AM0.50m | 4:24PM0.60m | 4:51AM0.78m | 5:09PM0.91m | ||||||||||||||
 | |  |  | |  | | |  | | | | | |  | | | |  | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | 9:01 | — | — | — | — | — | — | — | 8:59 | — | — | — | — | — | — | — | 8:57 | — |
mm | 2 | 2 | 1 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 2 | 1 | 2 | 1 | — |
Temp °C | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 14 |
Feels °C | 15 | 13 | 12 | 10 | 10 | 9 | 9 | 9 | 8 | 10 | 9 | 8 | 8 | 8 | 10 | 11 | 13 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | N 7 | N 7 | N 7 | N 6 | N 7 | N 6 | W 17 | — | WNW 11 | WNW 11 | WNW 10 | WNW 10 | — | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
| kJ | 46 | 45 | 4 | 4 | 4 | 3 | 1 | 1 | 6 | — | 1046 | 1008 | 1124 | 1020 | — | 794 | 637 | 502 | 516 |
Swell 2 Height (m) Direction Period (s) | N 7 | N 7 | W 18 | W 18 | W 19 | — | W 16 | W 16 | — | — | — | — | W 18 | — | — | W 17 | — | — | — |
| kJ | 9 | 8 | 6 | 6 | 7 | — | 5 | 5 | — | — | — | — | 6 | — | — | 6 | — | — | — |
Swell 3 Height (m) Direction Period (s) | NNW 6 | NNW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | W 6 | W 6 | W 7 | W 7 | W 8 | W 8 | W 9 | WNW 10 | — | — | — | — | WNW 10 | — | — | — | — |
| kJ | — | — | 96 | 136 | 168 | 203 | 253 | 326 | 483 | 748 | — | — | — | — | 898 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 35 | 332 | 337 | 345 | 382 | 344 | 438 | 416 | 416 | 75 | 337 | 75 | 35 | 79 | 67 | 35 | 106 | 79 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
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