Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 12 am 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
15.5°C
2.2° 

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 (30 Sep):

  • Morning surf: Morning surf (30 Sep, local time) - 4ft (1.2m), 5s period with S swell.
  • Afternoon surf: Afternoon surf (30 Sep, local time) - 2.5ft (0.8m), 12s period with W swell.
  • Evening surf: Evening surf (30 Sep, local time) - 8ft (2.5m), 14s period with W swell.

The current surf forecast for Rossnowlagh at 4AM is: 0.9m 4s primary swell from a South direction and 0.2m 12s secondary swell from a West-southwest direction, 0.1m 9s secondary swell from a West direction (forecast issued at 12:00am September 30). The wind direction is predicted to be cross-shore.

Time (IST) & DateWave HeightWave Period
Morning (30 Sep)4ft (1.2m)5s
Afternoon (30 Sep)2.5ft (0.8m)12s
Evening (30 Sep)8ft (2.5m)14s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Fri morning. Very mild (max 18°C on Tue night, min 9°C on Wed night). Winds decreasing (strong winds from the SSE on Tue night, light winds from the SSW by Fri morning).

Wednesday
30
Thursday
1
Friday
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
2
!
!
!
!
1
1
1
2
2
2
1
2
2
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)
0.3
WSW
13
0.9
S
4
1.1
S
4
1.2
S
5
1
S
5
0.8
W
12
1.8
W
13
3
W
15
3.5
W
15
3.5
W
15
3.5
W
15
3.5
W
14
3
W
14
2.5
W
14
2.4
WNW
13
2.2
WNW
13
1.9
WNW
12
1.8
WNW
12
1.7
WNW
12
1.6
WNW
12
1.5
WNW
12
1.5
WNW
11
1.4
WNW
11
1.1
WNW
11
Wave Graph
Metric surfscale
Energy kJ
32
28
48
63
45
181
1090
3616
5481
5834
5330
4555
3376
2580
1922
1521
1137
992
847
743
569
540
486
270
Wind (km/h)
25
SSE
30
S
30
SSE
35
SSE
30
S
30
SSW
30
SSW
20
S
15
S
15
S
15
S
15
S
30
S
30
S
25
S
20
S
15
S
15
S
15
S
10
SSW
15
SSE
20
WSW
15
W
10
SW
Wind State
cross-off
cross
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-on
on
cross-on
High Tide
8:33AM3.48m
8:51PM3.42m
9:14AM3.33m
9:38PM3.12m
10:04AM3.12m
Low Tide
2:15AM0.09m
2:33PM0.23m
2:53AM0.31m
3:17PM0.44m
3:36AM0.59m
4:11PM0.71m
cloud
part cloud
clear
cloud
clear
thunderstorm
clear
clear
cloud
cloud
clear
clear
part cloud
cloud
light rain
light rain
cloud
cloud
cloud
light rain
rain showers
rain showers
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
7:31
—
—
—
—
—
—
—
7:33
—
—
—
—
—
—
—
7:35
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
7:12
—
—
—
—
—
—
—
7:09
—
—
—
—
—
—
—
7:07
—
 mm
—
—
—
—
—
1
—
—
—
—
—
—
—
—
1
1
—
—
—
1
3
3
—
—
Temp °C
16
15
13
13
15
15
13
11
11
10
9
11
14
15
13
13
13
12
13
13
13
14
13
12
Feels °C
12
10
7
6
9
9
7
7
7
6
6
7
8
9
8
10
11
10
10
11
11
11
11
10
  • 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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