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Surf Forecasts:
Downhill surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 12 pm Saturday 16 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 6PM is: 0.4m 13s primary swell from a Northwest direction and 0.1m 10s secondary swell from a North direction, 0.6m 7s secondary swell from a West-northwest direction (forecast issued at 12:00pm May 16). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 1.5ft (0.4m) | 8s |
| Afternoon (16 May) | 1.5ft (0.4m) | 13s |
| Evening (16 May) | 1.5ft (0.5m) | 12s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Mon night. Very mild (max 12°C on Mon afternoon, min 6°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the SE by Mon night). | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 14 | NW 13 | NW 13 | NW 12 | NW 14 | NW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | NW 13 | NW 12 | NW 12 | WNW 12 | WNW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | WNW 10 | NW 10 | |
14 | 32 | 45 | 79 | 71 | 102 | 272 | 536 | 680 | 581 | 563 | 479 | 358 | 325 | 243 | 231 | 176 | 172 | 169 | 112 | 104 | 80 | 65 | 47 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross-on | glassy | glassy | on | glassy | glassy | off | cross-off | off | off | off | off | off | |
High Tide | 6:44PM2.16m | 7:04AM2.27m | 7:27PM2.24m | 7:50AM2.19m | 8:12PM2.27m | |||||||||||||||||||
Low Tide | 12:36PM0.04m | 00:52AM0.05m | 1:17PM0.05m | 1:40AM0.04m | 1:59PM0.09m | 2:31AM0.09m | ||||||||||||||||||
 |  | | |  | |  |  | | | |  |  | | | | | | | |  |  | | | |
 | 5:18 | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — |
 | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:31 | — | — | — | — | — | — | — | 9:34 | — | — | — | 9:35 |
— | 2 | 2 | — | — | — | — | — | — | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | 1 | 3 | 2 | |
Temp °C | 7 | 7 | 9 | 10 | 8 | 7 | 6 | 7 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 12 | 12 | 9 | 8 | 9 | 10 |
3 | 3 | 6 | 5 | 2 | 2 | 1 | 1 | 5 | 4 | 6 | 7 | 6 | 7 | 6 | 6 | 8 | 8 | 8 | 8 | 4 | 2 | 1 | 4 | |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 13 | NW 13 | WNW 7 | WNW 7 | NW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | NW 13 | NW 12 | NW 12 | WNW 12 | WNW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | WNW 10 | NW 10 |
 kJ | 14 | 15 | 45 | 79 | 33 | 41 | 272 | 536 | 680 | 581 | 563 | 479 | 358 | 325 | 243 | 231 | 176 | 172 | 169 | 112 | 104 | 80 | 65 | 47 |
Swell 2 Height (m) Direction Period (s) | NNW 4 | NNW 5 | N 10 | N 10 | NW 12 | NW 14 | NW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 15 |
| kJ | 4 | 3 | 2 | 2 | 71 | 102 | 49 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Swell 3 Height (m) Direction Period (s) | NW 15 | NW 14 | — | — | NW 15 | WNW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 32 | — | — | 35 | 48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | WNW 8 | WNW 7 | — | — | SW 3 | SW 3 | — | — | — | — | — | — | — | — | — | — | — | ESE 2 | ESE 3 | SE 3 | ESE 4 | ESE 5 |
| kJ | — | — | 23 | 47 | — | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 11 | 49 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 11 | 13 | 273 | 13 | 13 | 13 | 13 | 13 | 13 | 0 | 4 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 118 | 75 |
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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