Surf Forecasts:
How big are the waves at Downhill today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 5ft (1.6m), 11s period with NW swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 7ft (2.1m), 11s period with NW swell.
- Evening surf: Evening surf (19 Sep, local time) - 7.5ft (2.3m), 12s period with NW swell.
The current surf forecast for Downhill at 12AM is: 1.7m 11s primary swell from a Northwest direction and 0.4m 3s secondary swell from a West-southwest direction (forecast issued at 06:00pm September 18). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 5ft (1.6m) | 11s |
| Afternoon (19 Sep) | 7ft (2.1m) | 11s |
| Evening (19 Sep) | 7.5ft (2.3m) | 12s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Fri afternoon. Warm (max 20°C on Mon morning, min 11°C on Sun night). Winds decreasing (fresh winds from the WSW on Sat morning, light winds from the WSW by Sun afternoon). | |||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||
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 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 884 | 1007 | 821 | 688 | 617 | 617 | 615 | 932 | 1027 | 1374 | 1472 | 1472 | 1444 | 1250 | 1040 | 882 | 713 | 640 | 672 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off |
High Tide | 11:12PM1.33m | 12:17PM1.39m | 1:39AM1.21m | 3:22PM1.42m | |||||||||||||||
Low Tide | 5:37PM0.86m | 5:51AM0.90m | 7:38PM0.98m | 8:03AM0.93m | 9:51PM0.90m | ||||||||||||||
 | |  |  | | |  | |  |  |  | | | | | | | |  | |
 | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — |
 | — | 7:37 | — | — | — | — | — | — | — | 7:35 | — | — | — | — | — | — | — | 7:31 | — |
mm | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 14 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 12 |
Feels °C | 11 | 12 | 12 | 9 | 8 | 8 | 6 | 6 | 6 | 6 | 5 | 4 | 5 | 6 | 6 | 8 | 9 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 12 |
| kJ | 884 | 1007 | 821 | 688 | 617 | 617 | 615 | 932 | 1027 | 1374 | 1472 | 1472 | 1444 | 1250 | 1040 | 882 | 713 | 640 | 672 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 3 | — | — | WSW 3 | WSW 3 | WSW 3 | W 4 | W 4 | W 4 | SW 4 | SW 4 | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | 4 | 5 | 8 | 19 | 20 | 20 | 4 | 6 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 432 | 385 | 13 | 752 | 752 | 743 | 803 | 781 | 781 | 379 | 379 | 339 | 338 | 338 | 248 | 159 | 152 | 4 | 0 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
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