Rossnowlagh surf break

Rossnowlagh surfForecast / Donegal / Ireland

information circle48hr Weather and Surf, issued 12 pm Monday 18 May 2026 IST
Forecast update in hr  min  s Forecast update imminent
Rossnowlagh surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rossnowlagh sea temperature is
11.3° C
(Which is normal for this time of year)

How big are the waves at Rossnowlagh today?

The current surf forecast for Rossnowlagh at 6PM is: 1.0m 10s primary swell from a West direction (forecast issued at 12:00pm May 18). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (IST) & DateWave HeightWave Period
Morning (18 May)4.5ft (1.3m)11s
Afternoon (18 May)3.5ft (1.1m)10s
Evening (18 May)3ft (0.9m)10s

Table - waves today at Rossnowlagh. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 18mm), heaviest on Mon night. Very mild (max 14°C on Mon afternoon, min 10°C on Mon morning). Wind will be generally light.

Mon
18
Tuesday
19
Wednesday
20
Thu
21
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
Rating
(10 max)
2
2
0
0
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
2
2
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)
1.3
W
11
1.2
W
11
1.1
W
10
1
W
10
0.8
WNW
10
0.7
WNW
10
0.6
W
10
0.5
W
9
0.4
W
9
0.5
W
9
0.6
W
9
0.5
W
16
0.9
W
16
1.5
W
16
1.7
W
15
1.7
W
14
1.5
W
14
1.7
W
13
1.5
W
13
1.4
W
12
1.2
W
12
1.1
W
12
1
W
11
0.8
W
11
Wave Graph
Metric surfscale
Energy kJ
396
326
250
204
131
100
67
44
25
41
58
129
396
1065
1225
1195
820
986
737
566
403
327
250
149
Wind (km/h)
5
SE
10
SSE
20
SSE
15
SE
25
ESE
20
SE
15
SE
15
SE
20
S
20
SSW
20
SSW
20
SSW
15
SW
10
SSW
15
SSW
15
SSW
25
SW
25
WSW
25
WSW
15
SW
10
SE
10
SE
20
S
15
S
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross
cross
High Tide
7:23AM3.60m
7:47PM3.77m
8:13AM3.43m
8:36PM3.72m
9:06AM3.19m
9:29PM3.61m
Low Tide
1:23PM0.03m
1:55AM0.04m
2:08PM0.18m
2:47AM0.17m
2:55PM0.38m
3:45AM0.37m
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
part cloud
part cloud
cloud
cloud
rain showers
light rain
cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:20
5:20
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:36
9:37
9:38
9:40
1
2
3
2
1
1
1
2
2
1
1
1
Temp °C
10
12
14
10
10
10
11
11
12
14
12
11
11
10
10
11
12
13
13
13
12
12
14
14
7
8
9
6
5
6
9
8
8
10
9
7
8
7
7
8
8
8
8
10
11
10
11
12
Swell 1
Height (m)
Direction
Period (s)
1.3
W
11
1.2
W
11
1.1
W
10
1
W
10
0.8
WNW
10
0.7
WNW
10
0.6
W
10
0.5
W
9
0.4
W
9
0.5
W
9
0.6
W
9
0.6
W
10
0.9
W
16
1.5
W
16
1.7
W
15
1.7
W
14
1.5
W
14
1.4
W
12
1.2
W
12
1.1
W
12
1
W
11
0.8
W
11
Energy kJ
396
326
250
204
131
100
67
44
25
41
58
64
396
1065
1225
1195
820
566
403
327
250
149
Swell 2
Height (m)
Direction
Period (s)
0.1
W
16
0.1
W
15
0.1
W
15
0.2
W
15
0.3
WNW
10
0.2
W
13
0.3
W
13
0.5
W
16
0.1
NW
6
Energy kJ
5
5
4
17
19
14
31
129
1
Swell 3
Height (m)
Direction
Period (s)
0.2
W
14
0.1
W
18
0.2
W
17
0.4
W
13
Energy kJ
16
6
22
55
Wind waves
Height (m)
Direction
Period (s)
0.3
SSE
2
0.5
SE
3
0.5
SE
3
0.4
SSE
3
0.3
SSE
3
0.4
SSE
3
0.5
S
3
0.4
SSW
3
0.6
SSW
3
0.8
WSW
10
0.7
SW
4
1.7
W
13
1.5
W
13
0.4
S
3
0.6
S
3
Energy kJ
1
4
5
4
1
3
5
3
8
125
14
986
737
2
8
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
1
1
1
1
1
1
1
1
3
4
4
4
4
1
3
3
2
2
2
1
Distance (km)
0
0
30
8
111
8
9
9
57
48
48
65
43
8
8
73
107
479
42
73
0
0
66
48
Best forecast wave conditions in Donegal
Rating
(10 max)
2
2
2
2
1
1
1
1
1
1
1
2
4
4
4
4
2
2
2
2
Best forecast wave conditions in Ireland
Rating
(10 max)
3
3
2
2
1
1
1
1
1
1
2
1
3
4
4
4
4
3
3
3
2
2
2
Header Global
Rating
(10 max)
4
4
4
5
4
4
4
4
4
4
4
4
4
4
5
5
4
4
4
5
5
5
4
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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