Downhill surfForecast / Londonderry / Ireland

information circle48hr Weather and Surf, issued 6 pm Wednesday 27 May 2026 BST
Forecast 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
11.8° C
(Which is slightly warmer than usual)

How big are the waves at Downhill today (27 May):

  • Afternoon surf: Afternoon surf (27 May, local time) - 1.5ft (0.4m), 7s period with NNW swell.
  • Evening surf: Evening surf (27 May, local time) - 1.5ft (0.4m), 7s period with NW swell.

The current surf forecast for Downhill at 9PM is: 0.4m 7s primary swell from a Northwest direction and 0.2m 10s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 27). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (BST) & DateWave HeightWave Period
Morning (27 May)--
Afternoon (27 May)1.5ft (0.4m)7s
Evening (27 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 Forecast

Some drizzle, heaviest during Thu night. Warm (max 21°C on Thu afternoon, min 12°C on Wed night). Wind will be generally light.

Wed
27
Thursday
28
Friday
29
Sat
30
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
10 AM
1 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.4
NNW
7
0.4
NW
7
0.4
NW
7
0.4
NW
7
0.4
NW
7
0.2
NNW
6
0.2
NNW
6
0.2
NNW
6
0.1
NW
9
0.1
NW
8
0.1
NW
8
0.1
NW
11
0.1
NW
10
0.3
NW
10
0.3
NW
9
0.4
NW
9
0.8
WNW
8
0.6
WNW
8
0.7
NW
8
0.7
NW
8
0.6
NW
8
0.6
NW
8
0.5
NW
7
0.5
NW
7
Wave Graph
Metric surfscale
Energy kJ
19
12
12
11
11
4
4
4
3
3
3
5
4
15
14
21
90
43
65
65
50
46
27
26
Wind (km/h)
20
ESE
20
ESE
15
ESE
25
ESE
20
ESE
25
SE
25
SE
25
SE
20
SSE
20
SSE
15
SW
15
SSW
25
SSW
25
SSW
20
SW
20
WSW
20
WSW
15
W
10
WSW
10
S
10
SSE
15
SSE
15
SSE
15
S
off
off
off
off
off
off
off
off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:59PM1.69m
5:13AM1.87m
5:37PM1.81m
5:49AM1.88m
6:10PM1.90m
6:23AM1.89m
Low Tide
10:57PM0.45m
11:28AM0.38m
11:41PM0.41m
12:01PM0.35m
00:20AM0.38m
12:33PM0.33m
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
light rain
cloud
clear
cloud
part cloud
part cloud
part cloud
clear
clear
cloud
cloud
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:00
4:58
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:47
9:50
9:51
9:52
1
Temp °C
19
18
17
15
13
12
15
18
21
20
16
14
13
14
14
16
16
16
14
13
12
12
15
17
16
16
15
11
9
8
11
14
18
18
14
11
8
10
10
13
13
13
12
11
10
9
12
14
Swell 1
Height (m)
Direction
Period (s)
0.4
NNW
7
0.4
NW
7
0.4
NW
7
0.4
NW
7
0.4
NW
7
0.2
NNW
6
0.2
NNW
6
0.2
NNW
6
0.1
NW
6
0.6
ESE
5
0.4
ESE
5
0.3
ESE
5
0.2
E
4
0.3
NW
10
0.3
NW
9
0.4
NW
9
0.1
W
12
0.6
WNW
8
0.7
NW
8
0.7
NW
8
0.6
NW
8
0.6
NW
8
0.5
NW
7
0.5
NW
7
Energy kJ
19
12
12
11
11
4
4
4
1
14
9
4
1
15
14
21
3
43
65
65
50
46
27
26
Swell 2
Height (m)
Direction
Period (s)
0.2
WNW
10
0.2
WNW
10
0.2
WNW
10
0.2
WNW
10
0.2
WNW
10
0.1
NW
9
0.1
NW
9
0.1
NW
9
0.1
NW
9
0.1
NW
8
0.1
NW
8
0.1
NW
8
0.1
NW
10
0.2
WNW
7
0.1
W
12
0.1
W
12
0.1
W
16
0.1
W
16
0.1
W
16
0.1
W
15
Energy kJ
10
10
9
9
9
3
3
3
3
3
3
3
4
5
3
3
5
5
5
4
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
6
0.1
NW
6
0.1
NW
11
0.1
NW
8
0.1
W
15
0.1
W
13
Energy kJ
1
1
5
2
5
4
Wind waves
Height (m)
Direction
Period (s)
0.4
E
3
0.4
ESE
3
0.3
ESE
3
0.3
ESE
2
0.5
E
3
0.6
ESE
4
0.8
ESE
4
0.8
ESE
4
0.8
ESE
4
0.3
S
2
0.4
SW
2
0.7
W
3
0.8
WNW
8
0.5
W
4
Energy kJ
3
3
1
1
5
10
16
19
20
1
2
10
90
6
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
37
37
37
37
37
37
288
391
560
707
269
269
291
39
184
381
184
184
4
4
11
11
17
37
Best forecast wave conditions in Londonderry
Rating
(10 max)
1
1
Best forecast wave conditions in Ireland
Rating
(10 max)
1
1
1
1
1
1
1
1
2
2
1
1
2
1
1
1
3
2
Header Global
Rating
(10 max)
9
7
6
9
9
9
8
9
8
7
7
6
5
5
5
5
4
5
5
5
5
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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