Surf Forecasts:
How big are the waves at Downhill today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 4.5ft (1.3m), 6s period with NNW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 4ft (1.2m), 6s period with NNW swell.
- Evening surf: Evening surf (21 Aug, local time) - 3.5ft (1.0m), 5s period with NNW swell.
The current surf forecast for Downhill at 7AM is: 1.3m 6s primary swell from a North-northwest direction and 0.2m 8s secondary swell from a West-northwest direction (forecast issued at 12:00am August 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 4.5ft (1.3m) | 6s |
| Afternoon (21 Aug) | 4ft (1.2m) | 6s |
| Evening (21 Aug) | 3.5ft (1.0m) | 5s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Fri morning. Very mild (max 16°C on Sat afternoon, min 12°C on Thu night). Winds decreasing (fresh winds from the NNW on Thu night, calm by Sun morning). | ||||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||||||
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) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NW 5 | NW 5 | NW 5 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 176 | 139 | 130 | 130 | 130 | 89 | 65 | 60 | 60 | 45 | 33 | 24 | 17 | 12 | 8 | 5 | 6 | 7 | 10 | 11 | 22 | 29 | 29 | 29 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross | cross | cross | glassy | cross-on | cross-on | cross-off |
High Tide | 00:21AM1.37m | 1:30PM1.38m | 2:44AM1.29m | 3:48PM1.45m | 4:22AM1.38m | 4:52PM1.60m | ||||||||||||||||||
Low Tide | 6:56AM0.87m | 8:10PM0.93m | 8:47AM0.90m | 10:09PM0.87m | 10:19AM0.79m | |||||||||||||||||||
 | |  |  | |  |  | |  | |  | | | | | | |  | | | | | | | |
 | — | 6:11 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:47 | — | — | — | — | — | — | — | 8:45 | — | — | — | — | — | — | — | 8:43 | — |
mm | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 14 | 16 | 15 | 13 | 13 | 13 | 12 | 13 | 15 | 16 | 14 | 14 |
Feels °C | 7 | 7 | 8 | 8 | 7 | 7 | 8 | 8 | 7 | 8 | 9 | 9 | 11 | 12 | 12 | 11 | 12 | 11 | 10 | 11 | 14 | 14 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 8 | — | — | W 7 | W 8 | W 7 | W 7 | W 10 | NW 5 | NW 5 | NW 5 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 |
| kJ | 7 | 7 | 7 | 6 | 6 | 6 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 2 | 5 | 6 | 7 | 10 | 11 | 22 | 29 | 29 | 29 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 7 | W 10 | W 10 | W 6 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | N 11 | NNW 11 | NW 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 1 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 12 | 28 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 10 | W 8 | — | — | NW 6 | W 6 | W 6 | W 6 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NW 4 | — | — | — | — | — | — | — | — |
| kJ | 176 | 139 | 130 | 130 | 130 | 89 | 65 | 60 | 60 | 45 | 33 | 24 | 17 | 12 | 8 | 5 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 285 | 285 | 307 | 410 | 269 | 269 | 269 | 269 | 269 | 269 | 249 | 87 | 191 | 285 | 276 | 191 | 285 | 248 | 251 | 39 | 39 | 39 | 75 | 11 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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