Rossnowlagh Surf Break

Lat Long: 54.57° N 8.23° W

Rossnowlagh Surf Forecast and Surf Report

Issued: 6 pm 03 Oct 2026 (local time)

Forecast update in  hr  min

Today's Rossnowlagh sea temperature is
15.0°C
1.9° 

Rossnowlagh surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rossnowlagh surf forecast from 3 Oct 2026:

  • Best quality surf: Sunday 4 Oct, 1AM (local time) - 4ft (1.2m), 10s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Sunday 11 Oct, 1AM (local time) - 10ft (3.0m), 12s period, WNW swell with 2,471 kJ wave energy.
  • Next surfable swell (1★+): Sunday 4 Oct, 1AM (local time) - 4ft (1.2m), 10s period with WNW swell.

Best Forecast Surf Conditions for Rossnowlagh this week:

The surf forecast for Rossnowlagh over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Oct 04) at 1AM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.4m and 3s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Rossnowlagh in the next 16 days are 3.0m 12s and forecast to arrive on Sunday (Oct 11) at 1AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 4th Oct)4ft (1.2m) 10s
Best Surf 1AM (Sun 4th Oct)4ft (1.2m) 10s
Most Powerful 1AM (Sun 11th Oct)10ft (3.0m) 12s

Table - best surf conditions forecast for Rossnowlagh over the next 16 days.


Short Range Forecast

Light rain (total 3mm), mostly falling on Mon afternoon. Very mild (max 17°C on Sun morning, min 10°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 26mm), heaviest during Thu morning. Very mild (max 15°C on Thu afternoon, min 10°C on Tue night). Winds increasing (light winds from the NW on Tue night, fresh winds from the SW by Thu night).

Sat
3
Sunday
4
Monday
5
Tuesday
6
Wednesday
7
Thursday
8
Friday
9
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
0
0
0
0
2
0
0
1
0
0
1
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)
1.3
W
10
1.2
WNW
10
1.3
W
10
1.5
W
10
1.8
W
12
1.7
W
11
1.7
W
11
1.7
WNW
11
1.5
WNW
11
1.5
WNW
10
1.6
WNW
10
1.6
WNW
10
1.8
WNW
10
1.8
WNW
11
1.4
WNW
11
1.5
W
10
2.3
W
10
2.2
W
11
2.1
W
11
1.9
W
11
Wave Graph
Metric surfscale
Energy kJ
313
306
360
434
957
695
669
704
487
433
510
520
676
828
423
486
1039
1096
1087
819
Wind (km/h)
15
SSW
10
SSE
15
SSW
20
SSW
25
SW
20
SW
20
WSW
10
WNW
15
NW
20
WNW
10
NW
20
WNW
20
WNW
15
WSW
15
S
30
WSW
35
SW
30
W
35
W
30
WNW
Wind State
cross
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross
cross-on
cross-on
on
on
on
High Tide
11:57PM2.51m
12:38PM2.81m
1:39AM2.43m
2:12PM2.92m
3:08AM2.57m
3:27PM3.17m
4:11AM2.82m
4:22PM3.43m
4:59AM3.08m
5:08PM3.64m
5:38AM3.29m
5:48PM3.75m
Low Tide
5:27PM0.97m
5:47AM1.14m
7:18PM1.06m
7:35AM1.19m
8:59PM0.87m
9:03AM1.01m
10:02PM0.59m
10:03AM0.75m
10:48PM0.32m
10:50AM0.51m
11:26PM0.13m
11:30AM0.31m
00:01AM0.01m
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
rain showers
clear
clear
part cloud
part cloud
part cloud
rain showers
heavy rain
mod rain
mod rain
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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7:39
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7:41
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7:43
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7:45
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7:47
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7:48
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
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7:01
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7:00
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6:58
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6:54
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6:52
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6:50
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 mm
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1
2
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1
13
6
6
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Temp °C
14
13
17
16
16
16
15
11
12
12
11
12
12
11
14
15
15
12
13
12
Feels °C
11
11
15
14
14
14
13
9
7
7
8
7
7
8
11
10
10
5
6
5
  • 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
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Information about the Rossnowlagh Surf forecast

The above surf forecast table for Rossnowlagh provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rossnowlagh can be found by selecting the local surf guide option on the grey menu. Our Rossnowlagh surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Rossnowlagh) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Rossnowlagh may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Rossnowlagh is 17 km (11 miles) from Killybegs. If you plan a holiday in Donegal, look for hotels and other accommodation in Killybegs. Killybegs has rooms for a wide range of budgets as well as car hire and transport links.

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