Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 6 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
16.2° C
1.4° 

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 (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 1ft (0.3m), 8s period with NW swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 0.5ft (0.2m), 13s period with W swell.
  • Evening surf: Evening surf (11 Aug, local time) - 1.5ft (0.4m), 12s period with W swell.

The current surf forecast for Rossnowlagh at 11AM is: 0.3m 7s primary swell from a Northwest direction and 0.3m 7s secondary swell from a West direction (forecast issued at 06:00am August 11). 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 (11 Aug)1ft (0.3m)8s
Afternoon (11 Aug)0.5ft (0.2m)13s
Evening (11 Aug)1.5ft (0.4m)12s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Thu afternoon. Warm (max 23°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
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
1
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
WNW
7
0.4
W
7
0.3
W
7
0.3
W
7
0.2
W
13
0.3
W
12
0.5
W
11
0.5
W
11
0.5
W
10
0.4
WSW
10
0.4
WSW
10
0.4
WSW
10
0.4
WSW
10
0.4
WSW
12
0.5
W
12
0.6
W
11
0.7
W
11
0.7
W
10
0.7
W
10
0.6
W
10
0.6
W
10
0.6
W
10
0.6
W
10
Wave Graph
Metric surfscale
Energy kJ
17
15
9
8
12
25
64
58
54
34
33
33
32
46
71
88
110
102
100
73
70
68
67
Wind (km/h)
10
ESE
10
ESE
15
SE
20
SSE
20
S
10
SSE
10
SE
10
SE
10
SE
10
SE
15
SSE
15
S
15
SSW
10
SSW
5
S
5
SSE
5
SE
5
SE
10
S
15
S
10
WSW
5
W
5
W
Wind State
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-off
glassy
cross-off
cross-off
cross
cross
cross-on
on
on
High Tide
5:21AM3.09m
5:43PM3.63m
6:11AM3.27m
6:30PM3.90m
6:56AM3.39m
7:13PM4.06m
Low Tide
11:18AM0.43m
11:59PM0.19m
12:04PM0.22m
00:45AM-0.01m
12:46PM0.07m
cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
light rain
thunderstorm
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:14
9:12
9:09
 mm
1
3
1
1
Temp °C
13
12
16
20
22
22
20
18
16
16
19
21
23
22
20
19
18
18
19
21
20
20
18
Feels °C
11
10
13
16
19
21
19
17
15
15
18
20
23
23
21
20
19
19
20
21
21
21
20
  • 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 

FREE! Surf-Forecast.com widget for your website

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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