Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 12 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
17.1°C
2.5° 

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 (31 Aug):

  • Morning surf: Morning surf (31 Aug, local time) - 4.5ft (1.4m), 7s period with WNW swell.
  • Afternoon surf: Afternoon surf (31 Aug, local time) - 3ft (0.9m), 10s period with W swell.
  • Evening surf: Evening surf (31 Aug, local time) - 3.5ft (1.0m), 6s period with W swell.

The current surf forecast for Rossnowlagh at 9AM is: 1.4m 7s primary swell from a West-northwest direction and 0.3m 11s secondary swell from a West direction (forecast issued at 12:00am August 31). The wind direction is predicted to be cross-onshore.

Time (IST) & DateWave HeightWave Period
Morning (31 Aug)4.5ft (1.4m)7s
Afternoon (31 Aug)3ft (0.9m)10s
Evening (31 Aug)3.5ft (1.0m)6s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Wed morning. Very mild (max 18°C on Wed afternoon, min 13°C on Sun night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
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
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
1
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)
0.5
W
9
1.1
WNW
5
1.4
WNW
6
1.4
WNW
7
1.1
W
8
0.9
W
10
1
W
10
1
W
6
1
W
6
0.8
W
7
0.8
W
7
0.9
W
7
1.1
W
7
1.1
W
8
1.1
W
8
1
W
8
1
W
8
0.8
WNW
8
0.8
WNW
8
0.7
W
8
0.6
W
8
0.5
W
8
0.9
WSW
7
1.1
W
7
Wave Graph
Metric surfscale
Energy kJ
39
52
146
199
138
154
186
76
84
56
57
81
130
149
161
131
127
81
79
58
42
29
97
131
Wind (km/h)
10
WNW
20
WNW
25
NW
15
WNW
20
W
20
WSW
15
SW
15
SSW
15
SSW
15
SSW
15
SW
20
SW
20
WSW
20
WSW
10
WSW
10
SSW
10
SSE
10
ESE
10
ESE
10
SE
10
S
20
SW
20
SW
20
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-off
cross-off
off
cross-off
cross
cross-on
cross-on
cross-on
High Tide
8:22AM3.35m
8:35PM3.66m
8:57AM3.29m
9:11PM3.48m
9:35AM3.17m
9:53PM3.23m
Low Tide
2:11AM0.10m
2:15PM0.22m
2:43AM0.17m
2:51PM0.33m
3:18AM0.33m
3:31PM0.50m
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
light rain
cloud
cloud
cloud
light rain
light rain
cloud
cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:37
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:28
8:24
8:22
 mm
1
2
3
1
Temp °C
14
14
13
14
15
15
14
14
14
13
14
15
16
16
15
15
14
13
13
14
16
18
17
17
Feels °C
13
10
8
11
11
11
11
12
12
11
12
12
13
13
14
14
13
12
12
13
16
16
15
15
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rossnowlagh surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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