Surf Forecasts:
How big are the waves at Downhill today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 2.5ft (0.8m), 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 7PM is: 0.9m 7s primary swell from a North-northwest direction and 0.2m 11s secondary swell from a West-northwest direction (forecast issued at 12:00pm July 20). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 2.5ft (0.8m) | 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 15°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||||
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) | NNW 5 | NNW 5 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 32 | 36 | 60 | 75 | 79 | 77 | 70 | 66 | 77 | 74 | 74 | 62 | 62 | 64 | 68 | 83 | 64 | 66 | 54 | 41 | 41 |
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 | on | on |
High Tide | 11:07AM1.59m | 11:41PM1.83m | 11:59AM1.50m | 00:35AM1.63m | 1:08PM1.43m | ||||||||||||||||
Low Tide | 5:16PM0.39m | 6:09AM0.57m | 6:10PM0.57m | 7:02AM0.69m | 7:18PM0.73m | ||||||||||||||||
 | | |  |  | | |  | | | | |  | | | | | | | | | |
 | 5:13 | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — |
 | — | — | — | 9:52 | — | — | — | — | — | — | — | 9:50 | — | — | — | — | — | — | — | 9:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 11 | 12 | 13 | 14 | 15 | 15 | 14 |
Feels °C | 9 | 9 | 10 | 9 | 10 | 9 | 9 | 8 | 7 | 7 | 7 | 7 | 6 | 8 | 7 | 8 | 9 | 11 | 12 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | 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 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | NNW 7 |
| kJ | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 41 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | — |
| kJ | 32 | 36 | 60 | 75 | 79 | 77 | 70 | 66 | 77 | 74 | 74 | 62 | 62 | 64 | 68 | 83 | 64 | 66 | 54 | 41 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 273 | 396 | 1319 | 298 | 298 | 331 | 344 | 351 | 402 | 834 | 572 | 1261 | 288 | 288 | 288 | 288 | 313 | 50 | 50 | 50 | 39 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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