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Downhill surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 5 am Thursday 04 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
11.0° C
(Which is slightly warmer than usual)How big are the waves at Downhill today?
The current surf forecast for Downhill at 11AM is: 1.3m 14s primary swell from a West-northwest direction (forecast issued at 05:00am December 04). An open ocean swell of 0.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Dec) | 3.5ft (1.0m) | 14s |
| Afternoon (04 Dec) | 5.5ft (1.7m) | 15s |
| Evening (04 Dec) | 7ft (2.1m) | 17s |
Table - waves today at Downhill. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 14 | 14 | 15 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 18 | 19 | 18 | 17 | 16 | 16 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 209 | 177 | 431 | 721 | 1306 | 2033 | 2561 | 2622 | 2324 | 1978 | 1664 | 1164 | 767 | 529 | 331 | 261 | 205 | 226 | 742 | 1042 | 1056 | 828 | 620 | 480 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | off | off | off | off | off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross | cross | cross- on |
High Tide / height (m) | 5:29PM 2.21 | 5:52AM 2.25 | 6:16PM 2.18 | 6:38AM 2.32 | 7:02PM 2.08 | |||||||||||||||||||
Low Tide / height (m) | 11:16AM 0.10 | 11:41PM 0.07 | 12:07PM 0.04 | 12:24AM 0.08 | 12:59PM 0.05 | |||||||||||||||||||
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| Sunrise | - | - | 8:33 | - | - | - | - | - | - | - | 8:33 | - | - | - | - | - | - | - | 8:34 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - |
 | |  | |  |  |  | |  | | | | |  | | | | | | | | | | | |
Rain (mm) | 4 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | 5 | 7 | - | - | - | 1 | - | 1 | 1 | - | - | - |
| Temp. °C | 6 | 7 | 7 | 7 | 8 | 7 | 6 | 5 | 5 | 5 | 5 | 8 | 7 | 7 | 9 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 2 | 5 | 4 | 3 | 4 | 3 | 2 | 1 | 1 | 0 | -1 | -1 | -4 | -3 | 4 | 3 | 2 | 3 | 5 | 5 | 6 | 5 | 5 | 5 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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