Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 6 pm 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
17.0°C
2.6° 

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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 11ft (3.5m), 12s period with W swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 11ft (3.5m), 12s period with W swell.
  • Evening surf: Evening surf (04 Sep, local time) - 10ft (3.0m), 12s period with W swell.

The current surf forecast for Rossnowlagh at 2AM is: 2.1m 11s primary swell from a West direction and 0.1m 10s secondary swell from a North direction (forecast issued at 06:00pm September 03). The wind direction is predicted to be cross-onshore.

Time (IST) & DateWave HeightWave Period
Morning (04 Sep)11ft (3.5m)12s
Afternoon (04 Sep)11ft (3.5m)12s
Evening (04 Sep)10ft (3.0m)12s

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


Short Range Forecast

Moderate rain (total 14mm), heaviest on Thu afternoon. Very mild (max 18°C on Sun morning, min 12°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, light winds from the S by Sat afternoon).

Thu
3
Friday
4
Saturday
5
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
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
WSW
8
1.5
W
9
1.6
W
9
2
W
11
2.5
W
11
3.5
W
11
3.5
W
12
3.5
W
12
3
W
12
3
W
12
2.5
W
12
2.5
W
12
2.2
W
12
1.9
WNW
11
1.7
W
10
1.5
W
10
1.4
WNW
10
1.2
WNW
9
1
WNW
9
Wave Graph
Metric surfscale
Energy kJ
246
340
417
881
1377
2956
4002
3622
3035
2762
2139
1780
1297
862
644
450
378
254
173
Wind (km/h)
25
SW
20
SW
20
SW
25
WSW
35
WSW
40
WSW
35
W
35
W
35
W
30
WNW
25
W
25
W
20
W
15
WSW
15
WSW
15
SW
10
S
15
SSE
20
SSE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
High Tide
10:44PM2.94m
11:20AM2.81m
11:55PM2.66m
12:42PM2.69m
Low Tide
4:19PM0.73m
4:49AM0.82m
5:24PM0.98m
6:00AM1.07m
7:03PM1.13m
light rain
light rain
light rain
light rain
cloud
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
rain showers
rain showers
part cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
2
1
1
1
1
1
1
1
1
Temp °C
15
15
15
14
13
13
14
15
15
14
14
14
13
12
14
15
16
15
15
Feels °C
11
12
12
9
6
6
7
9
8
8
9
9
9
9
11
12
14
12
11
  • 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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