Surf Forecasts:
How big are the waves at Downhill today (16 Sep):
- Morning surf: Morning surf (16 Sep, local time) - 2.5ft (0.7m), 11s period with WNW swell.
- Afternoon surf: Afternoon surf (16 Sep, local time) - 3.5ft (1.1m), 10s period with NW swell.
- Evening surf: Evening surf (16 Sep, local time) - 3ft (0.9m), 9s period with NW swell.
The current surf forecast for Downhill at 2PM is: 1.1m 10s primary swell from a Northwest direction (forecast issued at 06:00am September 16). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | 2.5ft (0.7m) | 11s |
| Afternoon (16 Sep) | 3.5ft (1.1m) | 10s |
| Evening (16 Sep) | 3ft (0.9m) | 9s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Fri morning. Very mild (max 16°C on Wed afternoon, min 12°C on Wed night). Mainly strong winds. | |||||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||||||||
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) | NW 6 | WNW 12 | WNW 11 | NW 11 | NW 10 | NW 10 | NW 9 | WNW 9 | WNW 10 | WNW 10 | NW 11 | NW 12 | NW 13 | NW 14 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 106 | 117 | 135 | 286 | 229 | 139 | 118 | 286 | 342 | 543 | 1131 | 2034 | 3997 | 4883 | 4572 | 3835 | 3005 | 2511 | 2063 | 1545 | 1031 | 1076 | 821 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross | cross |
High Tide | 9:37AM1.85m | 9:55PM1.72m | 10:11AM1.71m | 10:27PM1.52m | 10:53AM1.54m | ||||||||||||||||||
Low Tide | 3:56PM0.45m | 4:08AM0.58m | 4:37PM0.67m | 4:45AM0.75m | 5:37PM0.86m | ||||||||||||||||||
 | |  |  | | |  |  |  |  | |  | | | | | | | |  | | | | |
 | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — |
 | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:37 | — |
mm | — | — | — | — | — | — | 1 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | 3 | 1 | 2 | 1 |
Temp °C | 13 | 13 | 13 | 15 | 16 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 13 | 12 | 13 | 13 | 13 | 13 | 12 | 14 | 16 | 16 |
Feels °C | 8 | 8 | 8 | 11 | 11 | 9 | 9 | 8 | 6 | 5 | 4 | 5 | 6 | 5 | 5 | 7 | 8 | 8 | 8 | 6 | 11 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 11 | NW 11 | NW 10 | NW 10 | NW 9 | N 9 | WNW 10 | WNW 10 | NW 11 | — | NW 13 | NW 14 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 |
| kJ | 56 | 117 | 135 | 286 | 229 | 139 | 118 | 1 | 342 | 543 | 1131 | — | 3997 | 4883 | 4572 | 3835 | 3005 | 2511 | 2063 | 1545 | 1031 | 1076 | 821 |
Swell 2 Height (m) Direction Period (s) | W 9 | — | — | — | — | — | — | — | N 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 6 | NW 6 | — | — | SW 3 | SW 3 | WNW 9 | — | — | — | NW 12 | NW 13 | — | — | — | — | — | SW 3 | — | SSW 3 | — | SW 3 |
| kJ | 106 | 96 | 74 | — | — | 2 | 4 | 286 | — | — | — | 2034 | 3567 | — | — | — | — | — | 5 | — | 3 | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 334 | 144 | 336 | 184 | 13 | 331 | 296 | 342 | 343 | 331 | 344 | 794 | 772 | 772 | 440 | 385 | 385 | 24 | 4 | 752 | 13 | 13 | 385 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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