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Downhill surfForecast / Londonderry / Ireland
12 Day Weather and Surf, issued 11 pm Tuesday 09 Dec 2025 GMTForecast 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
10.8° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Downhill this week:
The surf forecast for Downhill over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 11) at 9PM. The primary swell is predicted to be 1.6m and 17s period with a secondary swell of 0.1m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Downhill in the next 12 days are 2.4m 18s and forecast to arrive on Friday (Dec 12) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Monday (Dec 15) at 6PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 11th Dec) | 5ft (1.6m) 17s |
| Best Surf | 9PM (Thu 11th Dec) | 5ft (1.6m) 17s |
| Most Powerful | 12PM (Fri 12th Dec) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for Downhill over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 8mm), mostly falling on Thu afternoon. Very mild (max 11°C on Wed afternoon, min 5°C on Fri afternoon). Winds decreasing (near gales from the SW on Tue night, light winds from the SW by Thu afternoon). | Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Sun night. Very mild (max 11°C on Sat night, min 5°C on Fri night). Winds decreasing (near gales from the S on Sun afternoon, light winds from the SSE by Mon morning). | |||||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 13 | 14 | 13 | 15 | 17 | 18 | 18 | 17 | 16 | 15 | 13 | 12 | 15 | 14 | 14 | 14 | 12 | 15 | 15 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 1493 | 756 | 1387 | 1358 | 651 | 559 | 1599 | 3383 | 3460 | 2293 | 2241 | 1421 | 867 | 513 | 1833 | 1236 | 1073 | 701 | 1366 | 461 | 455 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | |
High Tide / height (m) | 9:25PM 1.59 | 10:03AM 2.00 | 10:22PM 1.44 | 11:08AM 1.86 | 11:33PM 1.34 | 12:20PM 1.75 | 12:58AM 1.33 | 1:32PM 1.69 | 2:13AM 1.40 | 2:34PM 1.67 | 3:10AM 1.52 | 3:24PM 1.69 | 3:54AM 1.65 | 4:06PM 1.73 | ||||||||
Low Tide / height (m) | 3:30AM 0.35 | 4:43PM 0.52 | 4:26AM 0.46 | 5:50PM 0.61 | 5:30AM 0.57 | 6:58PM 0.65 | 6:42AM 0.64 | 8:02PM 0.63 | 7:56AM 0.66 | 8:55PM 0.59 | 9:02AM 0.63 | 9:40PM 0.54 | 9:55AM 0.58 | |||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | ||||||||||||||||
| Sunrise | - | 8:41 | - | - | 8:41 | - | - | 8:42 | - | - | 8:44 | - | - | 8:45 | - | - | 8:45 | - | - | 8:47 | - | |
| Sunset | - | - | 3:57 | - | - | 3:57 | - | - | 3:56 | - | - | 3:56 | - | - | 3:56 | - | - | 3:56 | - | - | 3:56 | |
 |  |  |  | |  | | |  |  | | |  | |  | | | | |  | | ||
Rain (mm) | 1 | - | - | - | - | 6 | 1 | - | - | - | - | - | - | - | 2 | 4 | - | - | - | 1 | - | |
| Temp. °C | 10 | 10 | 11 | 11 | 11 | 8 | 8 | 6 | 7 | 6 | 7 | 8 | 11 | 11 | 11 | 11 | 9 | 10 | 11 | 9 | 9 | |
| Feels °C (?) | -1 | 1 | 4 | 3 | 4 | 5 | 5 | 1 | 2 | 0 | -1 | -1 | 5 | 6 | 1 | 4 | 3 | 4 | 4 | 4 | 3 | |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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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Information about the Downhill Surf forecast
The above surf forecast table for Downhill provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Downhill can be found by selecting the local surf guide option on the grey menu. Our Downhill surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Downhill) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Downhill may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Londonderry? If you are looking for accommodation near Downhill, camping, hotels and holiday cottages in Londonderry, consider staying in Coleraine which is 11 km (7 miles) away. Other places in and around Londonderry where you can find information about places to rent, and car hire include Derry which is 36 km (22 miles) away, Londonderry County Borough, Ballycastle and Derry.
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