Surf Forecasts:
How big are the waves at Downhill today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 1.5ft (0.4m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 4ft (1.2m), 6s period with NW swell.
- Evening surf: Evening surf (15 Sep, local time) - 3.5ft (1.1m), 6s period with NW swell.
The current surf forecast for Downhill at 5AM is: 0.4m 11s primary swell from a Northwest direction and 0.4m 9s secondary swell from a West-northwest direction, 0.6m 3s secondary swell from a West-northwest direction (forecast issued at 12:00am September 15). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 1.5ft (0.4m) | 10s |
| Afternoon (15 Sep) | 4ft (1.2m) | 6s |
| Evening (15 Sep) | 3.5ft (1.1m) | 6s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Mon night. Very mild (max 17°C on Mon night, min 12°C on Wed night). Winds increasing (light winds from the S on Mon night, strong winds from the W by Thu afternoon). | ||||||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||||||||||
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) | WNW 10 | NW 11 | WNW 11 | WNW 10 | WNW 10 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | WNW 11 | WNW 11 | WNW 10 | NW 10 | NW 10 | NW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | NW 11 | NW 13 | NW 14 | NW 14 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 59 | 31 | 44 | 40 | 204 | 88 | 90 | 106 | 130 | 134 | 115 | 186 | 192 | 225 | 160 | 118 | 227 | 292 | 342 | 637 | 1234 | 2305 | 4062 | 4176 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross | cross-off | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:07AM1.96m | 9:26PM1.93m | 9:37AM1.85m | 9:55PM1.72m | 10:11AM1.71m | |||||||||||||||||||
Low Tide | 3:10AM0.25m | 3:20PM0.25m | 3:38AM0.41m | 3:56PM0.45m | 4:08AM0.58m | 4:37PM0.67m | ||||||||||||||||||
 |  |  | |  | | | |  | | |  |  |  | |  | | | | | | | |  | |
 | — | 6:58 | — | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:39 | — |
mm | 2 | — | — | — | 1 | 1 | — | — | — | — | — | 1 | — | — | — | 2 | 1 | — | — | — | 1 | 1 | 1 | — |
Temp °C | 16 | 14 | 14 | 15 | 16 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 13 | 12 | 12 |
Feels °C | 11 | 9 | 10 | 11 | 11 | 9 | 9 | 8 | 8 | 8 | 9 | 10 | 9 | 11 | 9 | 10 | 8 | 7 | 6 | 5 | 5 | 5 | 4 | 5 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | NW 5 | WNW 10 | N 9 | N 9 | WNW 10 | WNW 10 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | NW 10 | NW 10 | NW 9 | NNW 8 | WNW 9 | WNW 10 | WNW 10 | NW 11 | NW 13 | NW 14 | NW 14 |
| kJ | 59 | 29 | 12 | 40 | 2 | 2 | 37 | 35 | 15 | 56 | 115 | 186 | 192 | 225 | 160 | 118 | 13 | 292 | 342 | 637 | 1234 | 2305 | 4062 | 4176 |
Swell 2 Height (m) Direction Period (s) | N 12 | NW 11 | WNW 11 | N 9 | — | — | — | — | — | — | — | NNW 6 | NNW 5 | — | — | NNW 8 | — | N 8 | N 8 | — | — | — | — | — |
| kJ | 11 | 31 | 44 | 7 | — | — | — | — | — | — | — | 53 | 26 | — | — | 7 | — | 6 | 1 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | N 11 | N 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 9 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | SW 2 | W 3 | WNW 10 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | — | — | — | SW 2 | SW 3 | WNW 9 | — | SW 3 | SSW 3 | — | W 4 | — | — |
| kJ | — | 9 | 2 | 6 | 204 | 88 | 90 | 106 | 130 | 134 | 108 | — | — | — | 1 | 2 | 227 | — | 1 | 1 | — | 26 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 184 | 50 | 13 | 399 | 834 | 772 | 1038 | 414 | 414 | 559 | 410 | 74 | 85 | 13 | 28 | 286 | 336 | 336 | 331 | 342 | 794 | 1036 | 772 | 414 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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