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Surf Forecasts:
Downhill surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 6 am Saturday 18 Oct 2025 BST
How big are the waves at Downhill today?
The current surf forecast for Downhill at 11AM is: 0.1m 8s primary swell from a Northwest direction and 0.1m 6s secondary swell from a Northwest direction (forecast issued at 06:00am October 18). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | 0.5ft (0.1m) | 8s |
| Afternoon (18 Oct) | 0.5ft (0.1m) | 8s |
| Evening (18 Oct) | 0.5ft (0.1m) | 12s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| 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 | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 8 | 9 | 8 | 8 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 15 | 13 | 12 | 11 | 11 | 10 | 13 | 12 | 11 | 11 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 5 | 2 | 2 | 4 | 17 | 14 | 10 | 2 | 2 | 3 | 12 | 3 | 3 | 2 | 10 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | cross- off | off | cross- off | cross- off | glass | glass | cross- on | cross | cross- on | cross- on |
High Tide / height (m) | 5:19AM 1.71 | 5:33PM 2.10 | 5:51AM 1.83 | 6:04PM 2.15 | 6:19AM 1.93 | 6:32PM 2.16 | ||||||||||||||||||
Low Tide / height (m) | 11:14AM 0.31 | 11:55PM 0.24 | 11:49AM 0.21 | 12:22AM 0.17 | 12:21PM 0.16 | 12:47AM 0.14 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| Sunrise | - | - | 8:00 | - | - | - | - | - | - | - | 8:03 | - | - | - | - | - | - | - | 8:04 | - | - | - | - | - |
| Sunset | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:19 | - | - | - | - | - | - | - | 6:16 | - | - | - |
 | |  |  | | | |  | |  |  | |  |  |  | |  | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | 2 | 6 | 6 | 7 | 2 | 1 | - | - | - | - | - | - | - | 1 | - | - |
| Temp. °C | 11 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 13 | 13 | 12 | 12 | 12 |
| Feels °C (?) | 7 | 7 | 6 | 7 | 7 | 6 | 5 | 4 | 4 | 4 | 5 | 6 | 10 | 12 | 10 | 11 | 9 | 9 | 10 | 12 | 12 | 10 | 10 | 10 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Londonderry
The wind is still offshore at Downhill (moderate winds from the SE at Magilligan Number 2 7 km from Downhill). 0.1m 6s windswell from the NNW to make surfable waves.
1 h 11 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Downhill surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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