Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh 48 hour detailed Surf Forecast

Issued: 12 am 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
15.7°C
1.8° 

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 (16 Sep):

  • Morning surf: Morning surf (16 Sep, local time) - 5.5ft (1.7m), 11s period with W swell.
  • Afternoon surf: Afternoon surf (16 Sep, local time) - 5ft (1.5m), 10s period with W swell.
  • Evening surf: Evening surf (16 Sep, local time) - 6ft (1.9m), 9s period with W swell.

The current surf forecast for Rossnowlagh at 9AM is: 1.7m 11s primary swell from a West direction (forecast issued at 12:00am September 16). The wind direction is predicted to be onshore.

Time (IST) & DateWave HeightWave Period
Morning (16 Sep)5.5ft (1.7m)11s
Afternoon (16 Sep)5ft (1.5m)10s
Evening (16 Sep)6ft (1.9m)9s

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


Short Range Forecast

Moderate rain (total 16mm), heaviest on Wed night. Very mild (max 16°C on Fri afternoon, min 12°C on Tue night). Winds increasing (light winds from the W on Wed morning, fresh winds from the W by Thu morning).

Wednesday
16
Thursday
17
Friday
18
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
1
2
2
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)
1.7
W
12
1.9
W
11
1.8
W
11
1.7
W
11
1.6
W
10
1.5
W
10
1.3
W
10
1.9
W
9
2.1
W
9
2.3
W
9
3
W
10
3.5
W
11
3.5
W
12
4
WNW
13
4
WNW
14
3.5
WNW
14
3.5
WNW
14
3
WNW
13
3
WNW
13
2.5
WNW
13
2.3
WNW
12
2.3
W
12
2.4
W
12
2.3
W
11
Wave Graph
Metric surfscale
Energy kJ
814
926
776
657
510
434
313
567
676
904
1524
2691
3925
5369
6365
5387
4822
3609
3041
2323
1543
1519
1557
1265
Wind (km/h)
20
WNW
20
WNW
20
WNW
15
W
25
WSW
25
SW
25
SW
30
WSW
30
W
30
WSW
35
WSW
40
W
35
W
35
W
30
W
30
W
30
W
25
WSW
20
SW
15
S
20
S
30
WSW
30
WSW
30
WSW
Wind State
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
on
on
on
cross-on
cross
cross
cross-on
cross-on
on
High Tide
9:28AM3.12m
9:45PM2.92m
10:04AM2.89m
10:25PM2.60m
10:51AM2.65m
Low Tide
3:09AM0.52m
3:28PM0.65m
3:41AM0.80m
4:08PM0.94m
4:19AM1.08m
5:00PM1.23m
part cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
light rain
rain showers
part cloud
light rain
light rain
light rain
rain showers
clear
cloud
clear
part cloud
part cloud
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:07
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:47
7:45
7:43
 mm
3
1
1
1
1
1
3
3
1
1
1
Temp °C
13
13
12
13
14
15
15
14
13
13
12
12
13
14
13
13
13
13
12
12
13
16
16
16
Feels °C
9
9
8
10
9
11
10
10
8
7
5
4
6
7
7
7
8
8
8
9
9
12
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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