Surf Forecasts:
How big are the waves at Downhill today (21 Aug):
- Afternoon surf: Afternoon surf (21 Aug, local time) - 4.5ft (1.3m), 6s period with NNW swell.
- Evening surf: Evening surf (21 Aug, local time) - 3.5ft (1.0m), 6s period with NNW swell.
The current surf forecast for Downhill at 9PM is: 1.0m 6s primary swell from a North-northwest direction and 0.1m 8s secondary swell from a West direction (forecast issued at 06:00pm August 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | - | - |
| Afternoon (21 Aug) | 4.5ft (1.3m) | 6s |
| Evening (21 Aug) | 3.5ft (1.0m) | 6s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Mon morning, min 13°C on Fri afternoon). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | |||||||||||||||||
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 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | NNW 4 | NW 4 | NW 4 | NW 5 | NW 5 | NW 5 | NW 6 | NW 7 | NW 7 | NW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 94 | 90 | 65 | 51 | 35 | 24 | 23 | 17 | 11 | 8 | 4 | 4 | 4 | 3 | 4 | 9 | 16 | 22 | 30 |
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-on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross | glassy |
High Tide | 1:30PM1.38m | 2:44AM1.29m | 3:48PM1.45m | 4:22AM1.38m | 4:52PM1.60m | ||||||||||||||
Low Tide | 8:10PM0.93m | 8:47AM0.90m | 10:09PM0.87m | 10:19AM0.79m | |||||||||||||||
 | |  |  |  |  | | | | | | | | | |  | | | | |
 | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | 8:47 | — | — | — | — | — | — | — | 8:45 | — | — | — | — | — | — | — | 8:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 15 | 14 | 15 | 16 | 16 | 15 | 15 |
Feels °C | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 12 | 13 | 13 | 13 | 12 | 13 | 15 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | — | NW 7 | W 8 | W 7 | W 7 | W 7 | W 8 | W 7 | W 7 | W 10 | NW 4 | NW 4 | NW 5 | NW 5 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 |
| kJ | — | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 4 | 4 | 4 | 3 | 4 | 9 | 16 | 22 | 23 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 7 | W 7 | W 10 | W 6 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | WNW 9 | WNW 8 | NNW 11 | NW 11 |
| kJ | — | — | — | — | — | — | 1 | 1 | 2 | 1 | 4 | 4 | 4 | 3 | 3 | 8 | 7 | 12 | 30 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 6 | NW 6 | W 6 | NW 6 | — | — | N 11 | W 8 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | 3 | 1 | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | NNW 4 | — | — | — | — | — | — | — | — | — |
| kJ | 94 | 90 | 65 | 51 | 35 | 24 | 23 | 17 | 11 | 8 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 269 | 269 | 269 | 269 | 269 | 269 | 269 | 273 | 191 | 269 | 248 | 276 | 248 | 248 | 248 | 248 | 248 | 39 | 132 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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