Surf Forecasts:
How big are the waves at Rossnowlagh today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 5ft (1.5m), 8s period with W swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 5ft (1.6m), 9s period with W swell.
- Evening surf: Evening surf (18 Aug, local time) - 6ft (1.9m), 11s period with W swell.
The current surf forecast for Rossnowlagh at 9AM is: 1.5m 8s primary swell from a West direction (forecast issued at 12:00am August 18). The wind direction is predicted to be onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 5ft (1.5m) | 8s |
| Afternoon (18 Aug) | 5ft (1.6m) | 9s |
| Evening (18 Aug) | 6ft (1.9m) | 11s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Wed morning. Very mild (max 16°C on Mon night, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||||
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 | 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 7 | W 7 | W 7 | W 8 | W 8 | W 9 | W 10 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | NNW 8 | WNW 9 | W 9 | WNW 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 153 | 200 | 236 | 249 | 295 | 486 | 716 | 846 | 819 | 789 | 625 | 701 | 640 | 563 | 500 | 431 | 441 | 386 | 312 | 154 | 105 | 90 | 60 | 62 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | cross-on | cross-on | cross | cross-on | on | on | on | glassy | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:11AM3.01m | 10:28PM3.06m | 10:53AM2.80m | 11:13PM2.71m | 11:43AM2.60m | |||||||||||||||||||
Low Tide | 3:55AM0.51m | 4:04PM0.67m | 4:32AM0.79m | 4:49PM0.96m | 5:15AM1.06m | 5:47PM1.22m | ||||||||||||||||||
 | |  | | | | |  |  | |  |  | | | |  | | | | | |  | | | |
 | — | 6:13 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:59 | — | — | — | — | — | — | — | 8:55 | — | — | — | — | — | — | — | 8:53 | — |
mm | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 3 | 2 | 1 | — | — | — | — | 1 | 1 | — | — | — |
Temp °C | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 14 | 13 | 12 | 13 | 14 | 15 | 16 | 15 | 14 | 13 | 12 | 13 | 15 | 15 | 15 | 13 | 12 |
Feels °C | 12 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 10 | 9 | 10 | 11 | 11 | 13 | 13 | 14 | 12 | 11 | 12 | 13 | 11 | 10 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | — | W 10 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | WNW 9 | W 9 | WNW 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | 625 | — | — | — | 500 | 431 | 441 | 386 | 312 | 154 | 87 | 90 | 60 | 62 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 8 | W 8 | W 9 | W 10 | W 11 | W 11 | W 10 | — | W 10 | W 10 | W 10 | — | — | — | — | — | NNW 9 | NNW 8 | NNW 4 | NNW 4 | NNW 7 |
| kJ | 153 | 200 | 236 | 249 | 295 | 486 | 716 | 846 | 819 | 789 | — | 701 | 640 | 563 | — | — | — | — | — | 116 | 105 | 17 | 35 | 48 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 408 | 287 | 396 | 313 | 284 | 494 | 494 | 73 | 73 | 107 | 114 | 114 | 78 | 107 | 42 | 0 | 23 | 36 | 97 | 168 | 278 | 280 | 278 | 280 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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