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Surf Forecasts:
Downhill surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 12 pm Thursday 21 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
11.0° C
(Which is normal for this time of year)How big are the waves at Downhill today?
The current surf forecast for Downhill at 5PM is: 0.4m 7s primary swell from a Northwest direction and 0.2m 11s secondary swell from a West-northwest direction (forecast issued at 12:00pm May 21). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 2ft (0.6m) | 8s |
| Afternoon (21 May) | 1.5ft (0.5m) | 7s |
| Evening (21 May) | 1.5ft (0.4m) | 7s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Thu afternoon. Very mild (max 19°C on Fri afternoon, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 8 | NW 8 | WNW 11 | NW 7 | W 11 | W 11 | W 11 | W 11 | WNW 12 | W 11 | W 12 | W 12 | W 12 | W 11 | W 12 | W 12 | W 12 | W 11 | WNW 7 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | |
41 | 28 | 23 | 12 | 9 | 9 | 9 | 10 | 13 | 10 | 11 | 11 | 11 | 10 | 11 | 3 | 3 | 3 | 5 | 9 | 19 | 20 | 21 | 20 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | |
High Tide | 10:20AM1.67m | 10:55PM2.02m | 11:24AM1.49m | 00:09AM1.91m | 12:44PM1.38m | 1:30AM1.85m | ||||||||||||||||||
Low Tide | 4:26PM0.38m | 5:37AM0.47m | 5:28PM0.47m | 6:55AM0.55m | 6:40PM0.54m | |||||||||||||||||||
 |  |  | |  | | | | | | | |  |  |  | | | | | | |  | | | |
 | 5:09 | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — |
 | — | — | — | 9:38 | — | — | — | — | — | — | — | 9:39 | — | — | — | — | — | — | — | 9:42 | — | — | — | 9:43 |
— | — | 1 | 3 | — | — | — | — | — | — | — | 1 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 16 | 18 | 15 | 15 | 14 | 13 | 12 | 15 | 17 | 19 | 16 | 12 | 13 | 12 | 11 | 13 | 17 | 18 | 17 | 16 | 15 | 14 | 13 |
13 | 14 | 16 | 13 | 12 | 10 | 9 | 9 | 12 | 14 | 16 | 14 | 12 | 11 | 10 | 8 | 10 | 14 | 15 | 16 | 15 | 13 | 11 | 10 | |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | WNW 7 | W 11 | ESE 4 | W 11 | W 12 | W 12 | W 12 | W 11 | W 12 | W 5 | W 5 | WNW 5 | WNW 7 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
 kJ | 41 | 28 | 19 | 12 | 7 | 7 | 4 | 10 | 1 | 10 | 11 | 11 | 11 | 10 | 11 | 1 | 2 | 3 | 5 | 9 | 19 | 20 | 21 | 20 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 11 | WNW 11 | W 11 | W 11 | W 11 | WNW 6 | WNW 12 | E 3 | — | — | ESE 5 | E 4 | — | W 12 | W 12 | W 11 | W 11 | — | — | — | — | — |
| kJ | 25 | 12 | 23 | 11 | 9 | 9 | 9 | 4 | 13 | 1 | — | — | 2 | 1 | — | 3 | 3 | 2 | 2 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | N 9 | N 9 | N 8 | N 8 | N 8 | NW 6 | NW 6 | NW 6 | NW 6 | N 6 | N 6 | N 6 | W 10 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | — | S 3 | — | — | SE 3 | SE 3 | SE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 4 | — | — |
| kJ | 1 | — | 1 | — | — | 1 | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 17 | 39 | 53 | 53 | 105 | 63 | 53 | 75 | 53 | 39 | 39 | 37 | 37 | 39 | 37 | 63 | 39 | 64 | 39 | 37 | 37 | 37 | 37 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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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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