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Surf Forecasts:
Downhill surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 6 pm Monday 18 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 12AM is: 0.6m 10s primary swell from a West-northwest direction (forecast issued at 06:00pm May 18). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 2.5ft (0.8m) | 11s |
| Evening (19 May) | 2.5ft (0.7m) | 10s |
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 Mon night. Very mild (max 17°C on Thu morning, min 9°C on Mon night). Winds decreasing (fresh winds from the SE on Mon night, light winds from the SSW by Wed night). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WNW 11 | NW 10 | NW 10 | WNW 10 | NW 10 | WNW 10 | NW 10 | NW 9 | WNW 9 | WNW 9 | WNW 16 | WNW 16 | WNW 15 | WNW 15 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 7 | |
149 | 112 | 104 | 67 | 48 | 38 | 24 | 23 | 8 | 8 | 25 | 98 | 135 | 167 | 118 | 107 | 99 | 66 | 50 | 48 | 28 | 27 | 25 | 19 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | cross-on | cross | cross | cross-off | off | off | cross-off | cross-off | cross-off | |
High Tide | 8:12PM2.27m | 8:37AM2.06m | 9:00PM2.23m | 9:26AM1.87m | 9:54PM2.13m | 10:20AM1.67m | ||||||||||||||||||
Low Tide | 1:59PM0.09m | 2:31AM0.09m | 2:44PM0.17m | 3:27AM0.19m | 3:32PM0.27m | 4:28AM0.34m | ||||||||||||||||||
 | |  | | |  | | | | | | |  |  |  | | | | | | | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — |
 | — | 9:34 | — | — | — | — | — | — | — | 9:35 | — | — | — | — | — | — | — | 9:37 | — | — | — | — | — | 9:38 |
— | — | 1 | 4 | 2 | 1 | 1 | — | 1 | 1 | 2 | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — | |
Temp °C | 12 | 11 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 13 | 11 | 10 | 10 | 11 | 12 | 14 | 13 | 14 | 13 | 12 | 11 | 14 | 15 | 17 |
7 | 6 | 3 | 3 | 4 | 7 | 8 | 10 | 11 | 10 | 9 | 7 | 5 | 7 | 7 | 10 | 10 | 12 | 11 | 9 | 7 | 11 | 12 | 15 | |
Swell 1 Height (m) Direction Period (s) | WNW 11 | NW 10 | NW 10 | WNW 10 | NW 10 | WNW 10 | NW 10 | ESE 4 | ESE 4 | WNW 9 | WNW 9 | WNW 16 | WNW 15 | WNW 15 | WNW 14 | WNW 14 | WNW 13 | WNW 6 | WNW 6 | NW 6 | NW 6 | NW 6 | NW 7 | NW 7 |
 kJ | 149 | 112 | 104 | 67 | 48 | 38 | 24 | 5 | 2 | 8 | 8 | 98 | 135 | 167 | 118 | 107 | 99 | 21 | 13 | 9 | 10 | 10 | 11 | 19 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 15 | W 15 | NW 9 | WNW 9 | ESE 4 | ESE 3 | E 3 | — | W 4 | WNW 7 | — | WNW 7 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 |
| kJ | — | — | — | — | — | 4 | 4 | 23 | 8 | 1 | 1 | 1 | — | 2 | 10 | — | 20 | 66 | 50 | 48 | 28 | 27 | 25 | 12 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 14 | NW 13 | NW 13 | WNW 16 | W 10 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 4 | 7 | 7 | 25 | 8 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 3 | ESE 4 | ESE 4 | ESE 6 | ESE 6 | ESE 5 | SSE 3 | S 3 | S 3 | SE 3 | — | — | SSW 2 | WSW 3 | W 8 | WNW 3 | — | — | — | — | — | — | — |
| kJ | — | 2 | 11 | 42 | 87 | 43 | 23 | 2 | 1 | 1 | 2 | — | — | 1 | 2 | 66 | 4 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 20 | 118 | 53 | 20 | 169 | 80 | 159 | 38 | 17 | 4 | 13 | 4 | 13 | 74 | 4 | 4 | 4 | 11 | 20 | 17 | 56 | 17 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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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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