- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Downhill surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 6 am Friday 15 May 2026 BSTForecast update in hr min s Forecast update imminent
Downhill surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Downhill sea temperature is
10.7° C
(Which is normal for this time of year)How big are the waves at Downhill today?
The current surf forecast for Downhill at 1PM is: 1.1m 7s primary swell from a North-northwest direction and 0.4m 8s secondary swell from a Northwest direction (forecast issued at 06:00am May 15). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 4.5ft (1.4m) | 7s |
| Afternoon (15 May) | 3ft (0.9m) | 6s |
| Evening (15 May) | 2ft (0.6m) | 5s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Sun afternoon. Very mild (max 10°C on Sat afternoon, min 6°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Mon 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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NW 7 | NNW 5 | NW 7 | NW 7 | NW 8 | NW 8 | NW 14 | NW 13 | NW 13 | NW 12 | NW 14 | NW 14 | WNW 13 | WNW 13 | WNW 13 | NW 13 | NW 13 | NW 12 | NW 12 | |
280 | 229 | 153 | 102 | 64 | 27 | 19 | 14 | 14 | 14 | 14 | 32 | 45 | 79 | 71 | 102 | 191 | 572 | 590 | 572 | 494 | 376 | 358 | 278 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross | |
High Tide | 5:36AM2.19m | 6:03PM2.03m | 6:20AM2.26m | 6:44PM2.16m | 7:04AM2.27m | 7:27PM2.24m | ||||||||||||||||||
Low Tide | 11:56AM0.09m | 00:05AM0.13m | 12:36PM0.04m | 00:52AM0.05m | 1:17PM0.05m | |||||||||||||||||||
 |  | |  |  | | |  | | |  | | | | | | | | |  | | |  | | |
 | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | 5:13 |
 | — | — | — | — | — | 9:28 | — | — | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:31 | — | 9:34 |
— | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | — | — | — | — | — | 1 | 2 | 2 | 4 | 2 | — | |
Temp °C | 8 | 8 | 8 | 9 | 9 | 8 | 7 | 7 | 7 | 6 | 6 | 8 | 9 | 10 | 8 | 7 | 7 | 7 | 7 | 9 | 9 | 8 | 8 | 7 |
1 | 1 | 1 | 3 | 3 | 3 | 3 | 4 | 4 | 2 | 2 | 4 | 3 | 4 | 2 | 1 | 2 | 3 | 2 | 4 | 6 | 6 | 7 | 4 | |
Swell 1 Height (m) Direction Period (s) | — | — | NW 8 | NW 8 | NW 8 | NW 7 | NNW 5 | N 5 | NNW 5 | NW 8 | NW 8 | NW 8 | NW 8 | NW 13 | NW 12 | WNW 7 | WNW 7 | WNW 13 | WNW 13 | WNW 13 | NW 13 | NW 13 | NW 12 | NW 12 |
 kJ | — | — | 18 | 17 | 29 | 27 | 19 | 12 | 7 | 14 | 14 | 15 | 15 | 79 | 71 | 50 | 77 | 572 | 590 | 572 | 494 | 376 | 358 | 278 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | NW 7 | NW 7 | NW 7 | NNW 6 | NNW 5 | NW 14 | NW 13 | WNW 8 | NW 15 | NW 14 | NW 14 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 14 | 14 | 14 | 6 | 5 | 32 | 45 | 12 | 35 | 102 | 191 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 10 | N 10 | NW 16 | NW 15 | NNW 5 | NNW 5 | N 10 | WNW 7 | WNW 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 2 | 2 | 10 | 8 | 3 | 3 | 2 | 5 | 47 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 5 | — | — | — | — | — | — | — | WNW 5 | WNW 6 | — | — | SW 2 | SW 3 | — | — | — | — | — |
| kJ | 280 | 229 | 153 | 102 | 64 | 27 | — | — | — | — | — | — | — | 15 | 22 | — | — | 1 | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 298 | 298 | 416 | 345 | 144 | 144 | 56 | 37 | 37 | 20 | 24 | 11 | 82 | 273 | 273 | 327 | 13 | 0 | 4 | 4 | 0 | 0 | 0 | 4 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest