Surf Forecasts:
How big are the waves at Downhill today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 3.5ft (1.1m), 12s period with NW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 3ft (0.9m), 11s period with NW swell.
- Evening surf: Evening surf (21 Sep, local time) - 2.5ft (0.8m), 11s period with NW swell.
The current surf forecast for Downhill at 2PM is: 0.9m 11s primary swell from a Northwest direction (forecast issued at 06:00am September 21). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3.5ft (1.1m) | 12s |
| Afternoon (21 Sep) | 3ft (0.9m) | 11s |
| Evening (21 Sep) | 2.5ft (0.8m) | 11s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Tue afternoon. Warm (max 22°C on Mon afternoon, min 9°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||||
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 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 481 | 282 | 309 | 220 | 179 | 140 | 117 | 115 | 106 | 92 | 121 | 90 | 58 | 262 | 551 | 648 | 621 | 604 | 552 | 543 | 373 | 403 | 383 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | on | glassy | on | cross-on | on | on | on | on | on | on | cross-on | cross-off |
High Tide | 4:26PM1.59m | 4:41AM1.45m | 5:01PM1.76m | 5:12AM1.60m | 5:30PM1.93m | ||||||||||||||||||
Low Tide | 9:46AM0.80m | 10:48PM0.74m | 10:38AM0.62m | 11:23PM0.56m | 11:14AM0.44m | ||||||||||||||||||
 |  |  |  | | |  | | | | |  | | |  | |  | | | | | | | |
 | — | 7:09 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — |
 | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:27 | — | — | — | — | — | — | — | 7:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 2 | 3 | 3 | — | — | — | — | — | — |
Temp °C | 14 | 15 | 16 | 20 | 22 | 21 | 18 | 17 | 16 | 16 | 16 | 14 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 13 | 13 | 12 | 11 |
Feels °C | 10 | 13 | 15 | 19 | 21 | 21 | 17 | 15 | 14 | 13 | 14 | 12 | 11 | 10 | 11 | 10 | 9 | 7 | 8 | 9 | 9 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 |
| kJ | 481 | 282 | 309 | 220 | 179 | 140 | 117 | 115 | 106 | 92 | 121 | 90 | 58 | 262 | 551 | 648 | 621 | 604 | 552 | 543 | 373 | 403 | 383 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 7 | — | — | — | — | — | — | — | WNW 12 | — | — | WNW 15 | WNW 9 | NW 9 | — | — | — | — | — | — | — | — |
| kJ | 7 | 31 | — | — | — | — | — | — | — | 15 | — | — | 22 | 32 | 20 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NW 20 | WNW 18 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 15 | 31 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 3 | NW 4 | — | — |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 12 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 4 | 0 | 0 | 13 | 4 | 0 | 0 | 0 | 0 | 4 | 0 | 39 | 0 | 74 | 74 | 24 | 24 | 184 | 248 | 127 | 127 | 24 | 0 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
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