Surf Forecasts:
How big are the waves at Downhill today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2ft (0.6m), 6s period with WNW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 3ft (0.9m), 8s period with WNW swell.
- Evening surf: Evening surf (18 Aug, local time) - 4ft (1.2m), 11s period with WNW swell.
The current surf forecast for Downhill at 5PM is: 0.9m 9s primary swell from a West-northwest direction (forecast issued at 12:00pm August 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2ft (0.6m) | 6s |
| Afternoon (18 Aug) | 3ft (0.9m) | 8s |
| Evening (18 Aug) | 4ft (1.2m) | 11s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Wed afternoon. Very mild (max 16°C on Tue morning, min 12°C on Wed morning). Winds increasing (light winds from the NNW on Wed night, fresh winds from the N by Thu night). | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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) | NW 6 | WNW 8 | WNW 9 | WNW 10 | WNW 12 | WNW 11 | NW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 6 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 38 | 69 | 121 | 225 | 365 | 323 | 263 | 229 | 171 | 168 | 151 | 122 | 122 | 85 | 55 | 60 | 168 | 151 | 173 | 255 | 239 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:18AM1.73m | 10:43PM1.78m | 10:56AM1.61m | 11:22PM1.56m | 11:47AM1.48m | ||||||||||||||||
Low Tide | 4:33PM0.40m | 5:04AM0.58m | 5:19PM0.62m | 5:48AM0.75m | 6:23PM0.82m | ||||||||||||||||
 | | | |  |  | | |  | |  | | |  |  | | | |  | | | |
 | 6:05 | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | 8:54 | — | — | — | — | — | — | — | 8:52 | — | — | — | — | — | — | — | 8:50 | — |
mm | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 1 | — | — | 1 | 1 | 1 | 1 | — | — | — |
Temp °C | 15 | 16 | 16 | 15 | 14 | 13 | 13 | 13 | 12 | 13 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 12 |
Feels °C | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 8 | 10 | 13 | 14 | 13 | 11 | 11 | 11 | 12 | 9 | 8 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | NW 6 | — | — | WNW 10 | WNW 12 | WNW 11 | NW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 6 | NNW 8 | NNW 8 | NW 9 | WNW 9 | WNW 9 |
| kJ | 38 | — | — | 225 | 365 | 323 | 263 | 229 | 171 | 168 | 151 | 122 | 122 | 85 | 55 | 60 | 168 | 151 | 22 | 17 | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 9 | WNW 10 | WNW 10 | NW 10 | E 4 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 54 | 38 | 23 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 4 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 3 | WNW 8 | WNW 9 | — | — | — | SW 2 | — | — | SSW 2 | — | — | — | — | NNW 5 | — | — | — | NNW 7 | NNW 7 | NNW 7 |
| kJ | 1 | 69 | 121 | — | — | — | 1 | — | — | 1 | — | — | — | — | 8 | — | — | — | 173 | 255 | 239 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 302 | 302 | 385 | 184 | 13 | 13 | 13 | 13 | 4 | 0 | 4 | 64 | 17 | 68 | 68 | 20 | 6 | 345 | 414 | 336 | 345 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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