Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 6 am 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
16.8°C
2.1° 

Rossnowlagh surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Rossnowlagh today (26 Aug):

  • Morning surf: Morning surf (26 Aug, local time) - 1.5ft (0.4m), 8s period with W swell.
  • Afternoon surf: Afternoon surf (26 Aug, local time) - 1ft (0.3m), 7s period with W swell.
  • Evening surf: Evening surf (26 Aug, local time) - 1.5ft (0.5m), 10s period with W swell.

The current surf forecast for Rossnowlagh at 10AM is: 0.3m 8s primary swell from a West direction and 0.1m 8s secondary swell from a Northwest direction (forecast issued at 06:00am August 26). The wind direction is predicted to be offshore.

Time (IST) & DateWave HeightWave Period
Morning (26 Aug)1.5ft (0.4m)8s
Afternoon (26 Aug)1ft (0.3m)7s
Evening (26 Aug)1.5ft (0.5m)10s

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


Short Range Forecast

Some drizzle, heaviest during Wed afternoon. Warm (max 22°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light.

Wednesday
26
Thursday
27
Friday
28
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
4 PM
7 PM
10 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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
W
8
0.4
W
8
0.3
W
8
0.3
W
7
0.3
W
7
0.3
WNW
10
0.5
W
10
0.6
W
10
0.6
W
9
0.6
W
9
0.6
W
9
0.6
W
9
0.5
W
9
0.5
W
9
0.4
WNW
8
0.4
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
7
0.3
WNW
7
0.5
NW
7
0.4
NW
7
Wave Graph
Metric surfscale
Energy kJ
21
20
10
10
10
22
50
67
63
63
60
59
40
39
23
22
13
12
11
11
10
25
17
Wind (km/h)
20
E
15
E
15
E
15
E
15
E
10
E
10
E
10
E
10
E
10
E
15
E
10
E
10
ESE
5
NW
0
N
5
NNW
5
NNE
5
NW
10
NW
15
WNW
15
NW
10
NW
5
NNW
Wind State
off
off
off
off
off
off
off
off
off
off
off
off
off
glassy
glassy
glassy
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:42AM2.85m
5:59PM3.35m
6:15AM3.03m
6:30PM3.56m
6:47AM3.18m
7:00PM3.70m
Low Tide
11:37AM0.61m
00:11AM0.50m
12:08PM0.42m
00:41AM0.32m
12:39PM0.28m
cloud
light rain
part cloud
cloud
rain showers
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:28
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:39
8:37
8:35
 mm
1
1
Temp °C
15
15
15
17
18
19
16
15
14
14
16
20
22
19
18
17
16
16
16
18
18
16
14
Feels °C
13
13
13
15
17
19
15
15
13
13
15
20
22
20
19
18
16
16
15
16
16
15
14
  • 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
How to use the Wavefinder 

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