Surf Forecasts:
How big are the waves at Downhill today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 2.5ft (0.7m), 5s period with NNW swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 3ft (0.9m), 6s period with NNW swell.
- Evening surf: Evening surf (20 Jul, local time) - 3ft (0.9m), 7s period with NNW swell.
The current surf forecast for Downhill at 3AM is: 0.6m 7s primary swell from a North-northwest direction and 0.1m 11s secondary swell from a Northwest direction, 0.1m 8s secondary swell from a West direction (forecast issued at 06:00pm July 19). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 2.5ft (0.7m) | 5s |
| Afternoon (20 Jul) | 3ft (0.9m) | 6s |
| Evening (20 Jul) | 3ft (0.9m) | 7s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 14°C on Wed morning, min 11°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | |||||||||||||||||
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 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 4 | NNW 5 | NNW 5 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 7 | NNW 5 | NNW 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 53 | 41 | 30 | 30 | 29 | 17 | 32 | 46 | 60 | 73 | 77 | 75 | 73 | 83 | 64 | 64 | 83 | 53 | 60 |
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 | on |
High Tide | 10:55PM2.04m | 11:07AM1.59m | 11:41PM1.83m | 11:59AM1.50m | |||||||||||||||
Low Tide | 4:30PM0.21m | 5:23AM0.43m | 5:16PM0.39m | 6:09AM0.57m | 6:10PM0.57m | ||||||||||||||
 | |  |  | |  | | | |  | |  | | | | | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — |
 | — | 9:52 | — | — | — | — | — | — | — | 9:52 | — | — | — | — | — | — | — | 9:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Feels °C | 10 | 10 | 10 | 11 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 9 | 9 | 9 | 8 | 7 | 8 | 7 | 7 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NNW 7 | NW 11 | NW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 |
| kJ | 5 | 5 | 30 | 5 | 5 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | NW 12 | W 9 | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 5 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 7 | NNW 7 | — | NNW 7 | NNW 7 | NNW 4 | NNW 5 | NNW 5 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 7 | NNW 5 | NNW 6 |
| kJ | 53 | 41 | — | 30 | 29 | 17 | 32 | 46 | 60 | 73 | 77 | 75 | 73 | 83 | 64 | 64 | 83 | 53 | 60 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 269 | 269 | 269 | 127 | 127 | 269 | 144 | 298 | 570 | 279 | 248 | 127 | 248 | 248 | 416 | 416 | 572 | 572 | 288 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
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