Surf Forecasts:
How big are the waves at Downhill today (13 Sep):
- Afternoon surf: Afternoon surf (13 Sep, local time) - 3.5ft (1.0m), 10s period with NW swell.
- Evening surf: Evening surf (13 Sep, local time) - 2.5ft (0.8m), 10s period with NW swell.
The current surf forecast for Downhill at 10PM is: 0.8m 10s primary swell from a Northwest direction and 0.1m 14s secondary swell from a North direction (forecast issued at 06:00pm September 13). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | - | - |
| Afternoon (13 Sep) | 3.5ft (1.0m) | 10s |
| Evening (13 Sep) | 2.5ft (0.8m) | 10s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Mon afternoon. Very mild (max 18°C on Mon morning, min 13°C on Mon night). Winds increasing (light winds from the SSE on Sun afternoon, fresh winds from the WNW by Tue night). | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | |||||||||||||||||
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 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 8 | WNW 11 | WNW 10 | WNW 10 | NW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 6 | NW 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 192 | 136 | 113 | 87 | 65 | 50 | 38 | 36 | 28 | 65 | 58 | 57 | 31 | 44 | 180 | 275 | 251 | 87 | 132 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on |
High Tide | 8:26PM2.30m | 8:37AM2.04m | 8:56PM2.13m | 9:07AM1.96m | 9:26PM1.93m | ||||||||||||||
Low Tide | 2:12PM-0.04m | 2:41AM0.11m | 2:46PM0.08m | 3:10AM0.25m | 3:20PM0.25m | ||||||||||||||
 | |  |  | |  | | |  | | |  |  | | |  |  | | | |
 | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | 7:51 | — | — | — | — | — | — | — | 7:47 | — | — | — | — | — | — | — | 7:45 | — |
mm | — | — | — | — | — | — | — | — | 1 | 5 | — | 1 | — | — | — | 1 | — | — | 1 |
Temp °C | 17 | 17 | 16 | 15 | 14 | 15 | 16 | 18 | 17 | 17 | 16 | 14 | 13 | 13 | 13 | 14 | 15 | 13 | 13 |
Feels °C | 16 | 16 | 14 | 13 | 12 | 13 | 13 | 17 | 16 | 16 | 13 | 9 | 9 | 7 | 9 | 8 | 9 | 7 | 7 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 8 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 11 | N 9 | N 9 | N 9 | N 9 | NW 10 |
| kJ | 192 | 136 | 113 | 87 | 65 | 50 | 38 | 36 | 28 | 65 | 58 | 57 | 29 | 44 | 7 | 2 | 2 | 2 | 25 |
Swell 2 Height (m) Direction Period (s) | N 16 | — | N 14 | N 14 | N 13 | N 13 | N 13 | N 13 | WNW 11 | N 12 | N 12 | SSE 3 | NW 5 | NW 5 | — | — | — | — | — |
| kJ | 5 | — | 4 | 14 | 14 | 32 | 31 | 13 | 12 | 12 | 11 | 1 | 7 | 7 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | N 14 | — | — | N 9 | N 13 | N 9 | — | N 12 | NW 11 | N 10 | — | — | — | — | — |
| kJ | — | — | — | — | 4 | — | — | 2 | 13 | 2 | — | 11 | 31 | 8 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 2 | — | SSE 2 | SSE 3 | SSE 3 | SSE 2 | — | — | SW 3 | WNW 10 | WNW 10 | WNW 10 | WNW 6 | NW 6 |
| kJ | — | — | — | — | — | 1 | — | 1 | 1 | 1 | 1 | — | — | 2 | 180 | 275 | 251 | 87 | 132 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 11 | 11 | 4 | 4 | 50 | 13 | 399 | 772 | 834 | 399 | 752 | 414 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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