Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 12 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
18.1° C
3.7° 

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 (20 Jul):

  • Morning surf: Morning surf (20 Jul, local time) - 1.5ft (0.4m), 11s period with W swell.
  • Afternoon surf: Afternoon surf (20 Jul, local time) - 1.5ft (0.4m), 11s period with W swell.
  • Evening surf: Evening surf (20 Jul, local time) - 1.5ft (0.4m), 10s period with W swell.

The current surf forecast for Rossnowlagh at 8AM is: 0.4m 11s primary swell from a West direction and 0.4m 6s secondary swell from a Northwest direction (forecast issued at 12:00am July 20). The wind direction is predicted to be cross-onshore.

Time (IST) & DateWave HeightWave Period
Morning (20 Jul)1.5ft (0.4m)11s
Afternoon (20 Jul)1.5ft (0.4m)11s
Evening (20 Jul)1.5ft (0.4m)10s

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


Short Range Forecast

Mostly dry. Very mild (max 18°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light.

Monday
20
Tuesday
21
Wednesday
22
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
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
11
0.4
W
11
0.4
W
11
0.4
W
11
0.4
W
11
0.4
W
11
0.4
W
10
0.4
W
10
0.4
W
10
0.4
W
10
0.4
W
10
0.4
W
10
0.3
W
10
0.3
W
9
0.3
W
9
0.3
W
9
0.3
W
9
0.5
NW
6
0.5
NW
6
0.5
NW
6
0.5
NW
6
0.5
NW
6
0.5
NW
6
0.4
NW
6
Wave Graph
Metric surfscale
Energy kJ
38
37
37
35
35
35
34
32
31
31
30
30
16
15
15
15
15
17
18
18
19
19
19
14
Wind (km/h)
5
NNW
5
NW
10
NW
15
NNW
20
NW
20
NW
20
NNW
10
NW
10
NW
10
NNW
10
NW
15
NNW
20
NW
20
NW
20
NNW
15
NNW
15
NNW
10
NNW
10
NNW
10
NNW
15
NW
15
NW
15
NW
10
NW
Wind State
glassy
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:30PM3.51m
10:59AM2.85m
11:16PM3.19m
11:49AM2.70m
00:07AM2.87m
12:46PM2.59m
Low Tide
4:45AM0.53m
4:44PM0.73m
5:32AM0.77m
5:38PM0.98m
6:25AM0.98m
6:45PM1.18m
clear
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:24
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:53
9:52
9:51
 mm
Temp °C
13
13
13
14
16
15
15
13
13
13
12
13
15
15
13
12
11
12
12
14
17
18
17
14
Feels °C
13
13
12
11
13
12
12
12
12
12
11
11
12
11
10
9
8
10
10
13
16
16
15
13
  • 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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