Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 6 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
17.7° C
3.3° 

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 (21 Jul):

  • Morning surf: Morning surf (21 Jul, local time) - 1.5ft (0.4m), 10s period with W swell.
  • Afternoon surf: Afternoon surf (21 Jul, local time) - 2ft (0.6m), 6s period with NNW swell.
  • Evening surf: Evening surf (21 Jul, local time) - 1ft (0.3m), 9s period with W swell.

The current surf forecast for Rossnowlagh at 12PM is: 0.4m 10s primary swell from a West direction and 0.6m 6s secondary swell from a North-northwest direction (forecast issued at 06:00am July 21). The wind direction is predicted to be cross-shore.

Time (IST) & DateWave HeightWave Period
Morning (21 Jul)1.5ft (0.4m)10s
Afternoon (21 Jul)2ft (0.6m)6s
Evening (21 Jul)1ft (0.3m)9s

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.

Tuesday
21
Wednesday
22
Thursday
23
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
10
0.4
W
10
0.4
W
10
0.6
NNW
6
0.6
NNW
6
0.3
W
9
0.3
W
9
0.5
NW
6
0.5
NW
6
0.5
NW
6
0.3
W
9
0.4
NW
7
0.4
NW
7
0.4
NW
7
0.4
NW
6
0.4
NW
6
0.2
W
9
0.3
NW
6
0.3
NW
6
0.3
W
8
0.3
W
8
0.3
W
8
0.3
W
8
Wave Graph
Metric surfscale
Energy kJ
31
30
30
22
22
15
15
16
16
18
15
15
16
15
14
14
6
6
6
12
12
12
12
Wind (km/h)
10
NNW
10
NNW
15
NNW
20
NNW
20
NW
20
NNW
15
NNW
10
NNW
15
NNW
10
NNW
10
NW
15
NW
15
NW
15
NNW
10
NW
5
NW
5
NW
5
WNW
10
WNW
15
W
15
W
15
WNW
10
W
Wind State
cross-on
cross-on
cross
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-on
glassy
on
on
on
on
on
High Tide
11:49AM2.70m
00:07AM2.87m
12:46PM2.59m
1:07AM2.62m
1:54PM2.53m
Low Tide
5:32AM0.77m
5:38PM0.98m
6:25AM0.98m
6:45PM1.18m
7:28AM1.13m
8:08PM1.27m
cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:52
9:51
9:50
 mm
Temp °C
13
13
14
14
15
13
11
11
11
12
14
16
18
17
15
14
13
13
15
16
17
15
13
Feels °C
12
12
12
11
11
9
8
9
9
11
13
14
16
15
14
14
13
13
14
14
14
13
12
  • 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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