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Surf Forecasts:
Downhill surfForecast / Londonderry / Ireland
48hr Weather and Surf, issued 12 pm Saturday 30 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
12.1° C
(Which is slightly warmer than usual)How big are the waves at Downhill today (30 May):
- Morning surf: Morning surf (30 May, local time) - 1.5ft (0.5m), 8s period with NW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 1.5ft (0.4m), 7s period with NW swell.
- Evening surf: Evening surf (30 May, local time) - 1ft (0.3m), 12s period with WNW swell.
The current surf forecast for Downhill at 6PM is: 0.3m 12s primary swell from a West-northwest direction and 0.3m 7s secondary swell from a Northwest direction (forecast issued at 12:00pm May 30). An open ocean swell of 0.3m 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 (30 May) | 1.5ft (0.5m) | 8s |
| Afternoon (30 May) | 1.5ft (0.4m) | 7s |
| Evening (30 May) | 1ft (0.3m) | 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 15mm), heaviest on Mon afternoon. Very mild (max 16°C on Sun afternoon, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 30 | Sunday 31 | Monday 1 | Tue 2 | |||||||||||||||||||||
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 7 | NW 7 | NW 7 | WNW 12 | WNW 12 | WNW 12 | WNW 13 | WNW 13 | WNW 12 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 10 | WNW 6 | W 10 | WNW 10 | |
27 | 18 | 12 | 29 | 28 | 14 | 17 | 16 | 15 | 32 | 33 | 30 | 14 | 14 | 11 | 11 | 10 | 9 | 9 | 9 | 8 | 3 | 8 | 10 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | on | glassy | off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | glassy | glassy | cross-off | |
High Tide | 6:43PM1.97m | 6:56AM1.89m | 7:15PM2.01m | 7:28AM1.86m | 7:49PM2.02m | |||||||||||||||||||
Low Tide | 12:33PM0.33m | 00:57AM0.36m | 1:06PM0.33m | 1:34AM0.37m | 1:39PM0.34m | 2:10AM0.40m | ||||||||||||||||||
 |  | |  |  |  | |  | | | | |  | |  | | | | |  |  | | | | |
 | 4:56 | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:54 | — |
 | — | — | — | 9:52 | — | — | — | — | — | — | — | 9:53 | — | — | — | — | — | — | — | 9:54 | — | — | — | 9:55 |
1 | — | 1 | — | — | 1 | — | — | — | 1 | — | — | — | — | — | 2 | 1 | — | 2 | 4 | 2 | — | — | — | |
Temp °C | 13 | 15 | 15 | 14 | 13 | 13 | 11 | 12 | 14 | 15 | 16 | 15 | 13 | 13 | 12 | 12 | 14 | 15 | 15 | 15 | 14 | 13 | 13 | 13 |
10 | 12 | 12 | 11 | 11 | 11 | 8 | 8 | 10 | 12 | 13 | 13 | 12 | 11 | 9 | 10 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | |
Swell 1 Height (m) Direction Period (s) | NW 7 | NW 7 | NW 7 | WNW 12 | WNW 12 | WNW 12 | WNW 13 | WNW 6 | WNW 12 | WNW 13 | WNW 13 | WNW 6 | WNW 6 | WNW 5 | WNW 5 | WNW 5 | W 11 | W 11 | W 11 | ESE 3 | ESE 4 | E 4 | W 10 | WNW 10 |
 kJ | 27 | 18 | 12 | 29 | 28 | 14 | 17 | 4 | 15 | 32 | 33 | 6 | 3 | 3 | 3 | 3 | 10 | 9 | 9 | 1 | 1 | 1 | 8 | 10 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 10 | WNW 10 | NW 7 | WNW 7 | WNW 7 | WNW 6 | WNW 13 | WNW 6 | WNW 6 | WNW 6 | WNW 12 | WNW 12 | WNW 12 | W 12 | W 12 | NW 5 | NW 5 | NW 5 | W 11 | W 10 | WNW 6 | — | — |
| kJ | 5 | 2 | 10 | 8 | 5 | 5 | 4 | 16 | 4 | 7 | 3 | 30 | 14 | 14 | 11 | 11 | 1 | 1 | 1 | 9 | 8 | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | W 11 | W 15 | NW 13 | N 10 | N 10 | — | — | N 10 | N 10 | N 9 | N 9 | N 8 | N 7 | N 7 | N 7 | N 7 | N 7 | N 6 | N 6 | — | N 6 | W 10 | NW 5 | — |
| kJ | 2 | 4 | 7 | 2 | 2 | — | — | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 2 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | SE 2 | SE 3 | SE 3 | — | — | — | SW 2 | WSW 2 | — | — | — | — | — | — | — | — | SSE 2 | — | — | — | — | — |
| kJ | — | — | 1 | 2 | 1 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 20 | 53 | 37 | 17 | 17 | 39 | 39 | 39 | 39 | 184 | 159 | 74 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 39 | 39 | 37 | 39 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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