Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 12 am 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
17.0°C
2.5° 

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 (03 Sep):

  • Morning surf: Morning surf (03 Sep, local time) - 3.5ft (1.0m), 7s period with W swell.
  • Afternoon surf: Afternoon surf (03 Sep, local time) - 4ft (1.2m), 8s period with W swell.
  • Evening surf: Evening surf (03 Sep, local time) - 6ft (1.8m), 9s period with W swell.

The current surf forecast for Rossnowlagh at 3AM is: 1.1m 7s primary swell from a West direction and 0.2m 10s secondary swell from a North-northwest direction (forecast issued at 12:00am September 03). The wind direction is predicted to be onshore.

Time (IST) & DateWave HeightWave Period
Morning (03 Sep)3.5ft (1.0m)7s
Afternoon (03 Sep)4ft (1.2m)8s
Evening (03 Sep)6ft (1.8m)9s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Thu afternoon. Very mild (max 17°C on Wed night, min 13°C on Thu night). Winds decreasing (fresh winds from the WSW on Thu night, light winds from the SW by Fri night).

Thursday
3
Friday
4
Saturday
5
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
1
1
1
2
1
1
0
0
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)
1.2
W
6
1.1
W
7
1
W
7
1
W
7
1.1
W
8
1.3
WSW
8
1.6
WSW
9
1.9
W
9
2
W
10
2.5
W
10
3.5
W
12
3.5
W
13
3.5
W
12
3
W
12
3
W
12
2.5
W
12
2.4
WNW
12
2.1
W
11
1.8
WNW
11
1.6
W
10
1.3
WNW
10
1.2
WNW
10
1
WNW
9
0.9
WNW
9
Wave Graph
Metric surfscale
Energy kJ
113
110
91
104
153
252
404
580
867
1461
3344
4449
3533
2762
2439
2012
1513
1165
778
562
342
282
181
135
Wind (km/h)
25
WSW
20
W
15
SW
15
SW
20
SW
25
SW
20
SW
25
SW
30
WSW
35
WSW
40
WSW
35
WSW
35
W
35
W
25
WNW
20
W
15
W
15
W
10
SW
10
S
15
S
20
S
15
SSE
15
SSE
Wind State
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
on
cross-on
cross
cross
cross
cross-off
cross-off
High Tide
10:21AM3.00m
10:44PM2.94m
11:20AM2.81m
11:55PM2.66m
12:42PM2.69m
Low Tide
3:59AM0.55m
4:19PM0.73m
4:49AM0.82m
5:24PM0.98m
6:00AM1.07m
7:03PM1.13m
cloud
clear
clear
cloud
cloud
light rain
light rain
light rain
cloud
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
clear
part cloud
part cloud
cloud
part cloud
cloud
part cloud
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:43
6:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:21
8:17
8:15
 mm
2
2
1
1
1
1
1
1
1
Temp °C
16
15
14
16
17
15
14
14
14
13
14
14
15
15
14
14
13
13
13
14
15
16
15
15
Feels °C
13
12
12
14
14
11
11
10
9
6
7
7
9
9
9
10
10
11
11
12
13
12
12
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 

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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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