Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 12 am 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
16.5°C
2.4° 

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 (10 Sep):

  • Morning surf: Morning surf (10 Sep, local time) - 2.5ft (0.7m), 8s period with W swell.
  • Afternoon surf: Afternoon surf (10 Sep, local time) - 4.5ft (1.3m), 11s period with WSW swell.
  • Evening surf: Evening surf (10 Sep, local time) - 4.5ft (1.3m), 11s period with W swell.

The current surf forecast for Rossnowlagh at 3AM is: 0.7m 7s primary swell from a West-northwest direction and 0.1m 12s secondary swell from a West direction (forecast issued at 12:00am September 10). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (IST) & DateWave HeightWave Period
Morning (10 Sep)2.5ft (0.7m)8s
Afternoon (10 Sep)4.5ft (1.3m)11s
Evening (10 Sep)4.5ft (1.3m)11s

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


Short Range Forecast

Moderate rain (total 17mm), heaviest on Fri night. Very mild (max 17°C on Thu afternoon, min 12°C on Wed night). Wind will be generally light.

Thursday
10
Friday
11
Saturday
12
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
1
0
0
0
0
0
0
1
1
1
1
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)
0.7
WNW
8
0.7
W
7
0.7
W
7
0.7
W
8
1.2
WSW
11
1.3
WSW
12
1.4
W
12
1.3
W
10
1.3
W
10
1.3
W
10
1.3
W
8
1.3
W
8
1.3
W
9
1.3
WNW
9
1.4
WNW
9
1.5
WNW
11
1.6
WNW
13
1.7
W
13
1.9
W
12
2.1
W
12
1.9
W
11
1.7
WNW
12
1.6
WNW
12
1.2
WNW
12
Wave Graph
Metric surfscale
Energy kJ
58
54
54
63
343
462
520
354
340
326
239
245
257
283
321
467
915
942
959
1146
930
791
718
380
Wind (km/h)
15
S
20
SSE
25
SSE
20
S
25
WSW
25
SW
25
W
20
WSW
20
WNW
20
WNW
15
W
15
WSW
15
SW
15
SSW
20
S
20
S
25
S
25
SSW
25
SW
15
W
10
WNW
15
WNW
10
NW
10
WNW
Wind State
cross
cross-off
cross-off
cross
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
5:58AM3.28m
6:11PM3.92m
6:38AM3.44m
6:50PM4.01m
7:14AM3.52m
7:27PM3.96m
Low Tide
11:48PM0.12m
11:49AM0.23m
00:26AM-0.06m
12:28PM0.08m
1:02AM-0.12m
1:05PM0.02m
cloud
cloud
cloud
cloud
cloud
cloud
rain showers
part cloud
rain showers
cloud
cloud
part cloud
clear
cloud
cloud
light rain
mod rain
light rain
light rain
light rain
rain showers
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:56
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:02
8:00
7:58
 mm
1
1
1
6
4
1
2
1
Temp °C
13
12
13
14
16
17
15
14
13
13
13
14
15
16
15
14
14
15
17
16
15
15
14
14
Feels °C
10
8
8
10
12
13
11
11
9
9
9
11
11
13
11
10
10
11
14
15
13
12
12
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 

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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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