Rossnowlagh surf break

Rossnowlagh surfForecast / Donegal / Ireland

information circle48hr Weather and Surf, issued 6 pm Wednesday 20 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
11.4° C
(Which is normal for this time of year)

How big are the waves at Rossnowlagh today?

The current surf forecast for Rossnowlagh at 1AM is: 1.1m 12s primary swell from a West direction (forecast issued at 06:00pm May 20). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (IST) & DateWave HeightWave Period
Morning (21 May)2.5ft (0.8m)11s
Afternoon (21 May)2.5ft (0.7m)11s
Evening (21 May)2.5ft (0.7m)11s

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 11mm), heaviest on Thu afternoon. Very mild (max 18°C on Fri morning, min 10°C on Fri night). Wind will be generally light.

Wed
20
Thursday
21
Friday
22
Sat
23
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
2
2
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
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)
1.3
W
13
1.2
W
12
1.1
W
12
1.1
W
12
0.9
W
11
0.8
W
11
0.8
W
11
0.7
W
11
0.7
W
11
0.7
W
11
0.7
W
10
0.7
W
10
0.7
W
11
0.6
W
11
0.6
W
11
0.4
WSW
12
0.6
W
12
0.6
W
11
0.7
W
11
0.7
W
10
0.6
WSW
10
0.6
W
11
0.5
W
9
0.6
W
10
Wave Graph
Metric surfscale
Energy kJ
551
413
336
325
206
149
146
112
112
110
108
108
112
83
83
45
99
85
110
100
80
83
41
68
Wind (km/h)
15
WSW
15
SW
10
SSE
10
SE
15
SSE
15
S
15
SSW
15
SSW
20
S
25
S
20
SSE
20
SSE
15
SSE
15
S
20
S
20
SSW
20
SSW
15
SW
10
S
10
S
10
SSE
10
SSE
10
S
15
SW
cross-on
cross-on
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross
cross-on
High Tide
9:29PM3.61m
10:03AM2.93m
10:28PM3.45m
11:07AM2.69m
11:32PM3.30m
12:18PM2.54m
Low Tide
2:55PM0.38m
3:45AM0.37m
3:47PM0.60m
4:51AM0.59m
4:47PM0.82m
6:06AM0.74m
part cloud
cloud
cloud
cloud
light rain
cloud
part cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
rain showers
light rain
rain showers
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:16
5:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:38
9:40
9:43
9:44
2
2
4
1
1
1
Temp °C
14
13
12
11
12
14
14
17
15
14
14
13
12
13
15
18
18
15
13
12
10
10
13
16
10
10
11
9
9
12
12
15
12
10
10
9
9
11
12
14
14
13
12
11
9
8
11
13
Swell 1
Height (m)
Direction
Period (s)
1.3
W
13
1.2
W
12
1.1
W
12
1.1
W
12
0.9
W
11
0.8
W
11
0.8
W
11
0.7
W
11
0.7
W
11
0.7
W
11
0.7
W
10
0.7
W
10
0.7
W
11
0.6
W
11
0.6
W
11
0.4
W
10
0.6
W
12
0.6
W
11
0.7
W
11
0.7
W
10
0.6
WSW
10
0.6
W
11
0.5
W
9
0.6
W
10
Energy kJ
551
413
336
325
206
149
146
112
112
110
108
108
112
83
83
29
99
85
110
100
80
83
41
68
Swell 2
Height (m)
Direction
Period (s)
0.4
NW
6
0.4
NW
8
0.4
NW
8
0.3
NW
8
0.3
NW
7
0.1
NW
7
0.1
NW
7
0.1
NW
7
0.1
NW
7
0.1
NW
7
0.1
NW
7
0.4
WSW
12
0.2
W
12
0.3
W
11
Energy kJ
11
23
22
9
8
2
2
2
2
2
2
45
12
22
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
9
0.1
NW
7
Energy kJ
3
2
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
3
0.5
S
3
0.4
SSW
3
0.3
S
3
0.4
S
3
0.5
S
3
0.5
S
3
0.5
S
3
0.5
S
3
0.4
SSE
3
0.4
S
3
0.4
SSW
3
0.4
SSW
3
0.2
SSW
3
0.3
S
3
0.3
SSW
3
0.3
SSW
3
Energy kJ
3
5
3
2
2
5
5
5
5
3
3
3
3
1
1
2
2
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
2
1
1
1
1
1
2
1
1
1
1
1
1
2
2
1
1
1
1
1
1
Distance (km)
73
21
0
0
0
8
8
12
48
66
42
8
0
48
48
48
73
34
8
0
8
8
9
21
Best forecast wave conditions in Donegal
Rating
(10 max)
2
2
2
2
1
1
2
2
1
1
1
2
2
1
2
2
1
1
1
1
1
1
Best forecast wave conditions in Ireland
Rating
(10 max)
3
3
2
2
2
2
2
2
2
2
3
1
2
2
2
1
2
2
2
2
1
2
1
1
Header Global
Rating
(10 max)
4
5
5
5
5
5
5
5
5
5
4
4
5
7
8
7
6
5
5
5
5
6
8
9
  • 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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