Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 12 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
16.5° C
1.7° 

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 (15 Aug):

  • Morning surf: Morning surf (15 Aug, local time) - 2.5ft (0.8m), 8s period with WNW swell.
  • Afternoon surf: Afternoon surf (15 Aug, local time) - 2.5ft (0.8m), 8s period with WNW swell.
  • Evening surf: Evening surf (15 Aug, local time) - 2.5ft (0.8m), 8s period with WNW swell.

The current surf forecast for Rossnowlagh at 5AM is: 0.8m 8s primary swell from a West-northwest direction (forecast issued at 12:00am August 15). The wind direction is predicted to be cross-onshore.

Time (IST) & DateWave HeightWave Period
Morning (15 Aug)2.5ft (0.8m)8s
Afternoon (15 Aug)2.5ft (0.8m)8s
Evening (15 Aug)2.5ft (0.8m)8s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Mon afternoon. Very mild (max 17°C on Mon afternoon, min 12°C on Fri night). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
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
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
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
W
8
0.8
WNW
8
0.9
WNW
8
0.8
WNW
8
0.8
WNW
8
0.9
WNW
8
0.8
WNW
8
0.8
WNW
8
0.7
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
0.5
NW
7
0.7
W
7
1
W
8
0.9
W
8
0.9
W
8
0.9
W
9
0.9
W
8
0.9
W
8
0.8
W
8
0.7
W
7
0.7
W
7
1
W
7
Wave Graph
Metric surfscale
Energy kJ
61
94
109
83
79
83
66
66
54
42
47
37
27
44
129
104
112
125
116
105
80
52
47
97
Wind (km/h)
5
WNW
10
NW
10
WNW
10
WNW
15
W
15
WNW
10
WNW
5
WSW
5
SW
5
SSW
5
SE
10
SSE
10
SSE
10
S
10
SSW
10
WSW
15
WSW
15
WSW
15
WSW
10
SW
10
S
10
SSW
15
WSW
15
WSW
Wind State
on
cross-on
cross-on
on
on
on
cross-on
glassy
glassy
cross-on
cross-off
cross-off
cross-off
cross
cross-on
cross-on
on
cross-on
on
cross-on
cross
cross-on
cross-on
on
High Tide
8:18AM3.41m
8:33PM3.97m
8:56AM3.32m
9:11PM3.73m
9:33AM3.18m
9:49PM3.41m
Low Tide
2:07AM-0.08m
2:06PM0.05m
2:44AM0.04m
2:44PM0.19m
3:20AM0.25m
3:23PM0.40m
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:05
9:02
9:00
 mm
1
3
2
4
1
Temp °C
14
12
13
14
15
15
15
14
14
13
13
13
14
14
14
15
15
14
15
15
14
16
17
17
Feels °C
13
10
12
12
12
12
13
14
14
12
12
11
12
13
13
14
14
13
14
14
13
15
16
16
  • 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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