Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 6 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
16.9° C
2.1° 

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 (19 Aug):

  • Afternoon surf: Afternoon surf (19 Aug, local time) - 5ft (1.6m), 10s period with W swell.
  • Evening surf: Evening surf (19 Aug, local time) - 4.5ft (1.4m), 10s period with W swell.

The current surf forecast for Rossnowlagh at 11PM is: 1.4m 10s primary swell from a West-northwest direction (forecast issued at 06:00pm August 19). The wind direction is predicted to be cross-onshore.

Time (IST) & DateWave HeightWave Period
Morning (19 Aug)--
Afternoon (19 Aug)5ft (1.6m)10s
Evening (19 Aug)4.5ft (1.4m)10s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 15°C on Wed afternoon, min 11°C on Thu night). Wind will be generally light.

Wed
19
Thursday
20
Friday
21
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
1
0
1
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
Wave
Height (m)
Direction
Period (s)
1.6
W
10
1.5
W
10
1.4
W
10
1.6
WNW
10
1.7
WNW
10
1.1
W
10
1.2
NNW
10
1.1
NNW
9
0.7
WNW
9
0.7
WNW
9
0.8
WNW
9
0.9
NW
8
0.9
NW
8
0.9
NW
8
0.8
NW
7
0.8
NW
6
0.8
NW
6
0.7
NW
6
0.6
NW
6
Wave Graph
Metric surfscale
Energy kJ
489
422
369
445
495
231
269
176
90
86
101
120
112
109
67
45
45
36
30
Wind (km/h)
20
W
10
W
5
NW
15
NNW
10
NNW
20
N
25
N
25
N
25
N
20
N
20
N
15
N
15
N
15
NNW
20
N
20
N
25
NNW
20
N
10
NNW
Wind State
on
on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
11:13PM2.71m
11:43AM2.60m
00:10AM2.43m
12:54PM2.45m
Low Tide
4:49PM0.96m
5:15AM1.06m
5:47PM1.22m
6:16AM1.29m
7:19PM1.40m
rain showers
rain showers
clear
clear
rain showers
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
rain showers
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:55
8:53
8:52
 mm
2
1
1
1
Temp °C
15
15
14
13
13
13
14
14
14
13
13
12
11
12
13
14
14
14
13
Feels °C
12
13
14
10
11
9
9
9
9
8
9
8
8
9
9
10
9
10
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.


Nearest locationNearest