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Surf Forecasts:

Rossnowlagh surf break

Rossnowlagh surfForecast / Donegal / Ireland

information circle12 Day Weather and Surf, issued 5 pm Thursday 15 Jan 2026 IST
Forecast update in hr  min  s Forecast update imminent
Rossnowlagh surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rossnowlagh sea temperature is
8.2° C
 (Which is 1.4°C colder than average for this time of year)

Best Forecast Surf Conditions for Rossnowlagh this week:

The surf forecast for Rossnowlagh over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jan 16) at 12AM. The primary swell is predicted to be 3.0m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Rossnowlagh in the next 12 days are 3.0m 16s and forecast to arrive on Friday (Jan 16) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Wednesday (Jan 21) at 6AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 16th Jan)10ft (3.0m) 16s
Best Surf12AM (Fri 16th Jan)10ft (3.0m) 16s
Most Powerful12AM (Fri 16th Jan)10ft (3.0m) 16s

Table - best surf conditions forecast for Rossnowlagh over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Thu night. Mild temperatures (max 6°C on Thu afternoon, min 2°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Wed morning. Mild temperatures (max 8°C on Tue morning, min 3°C on Mon night). Wind will be generally light.

Thu
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
5
5
4
4
4
3
2
2
1
0
0
2
4
4
3
2
3
1
2
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
W
3
W
2.5
W
2.5
W
2.1
W
1.7
W
1.4
W
1.1
W
0.9
W
0.8
W
0.6
W
0.9
WNW
2.5
W
2.5
W
2.1
W
2.1
W
2
W
1.3
W
1.1
W
0.8
W
0.7
W
Period(s) (?)17161515141312111010918161515151413131211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)599242132960292117849615562841611226051633112828201619591666590392184123
Wind
(km/h)
15
SSE
15
SE
15
ESE
10
ESE
10
E
10
E
10
ESE
10
ESE
15
ESE
20
SSE
15
SE
20
S
5
SSE
15
ESE
20
SE
25
SE
25
ESE
20
SE
20
ESE
15
ESE
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offoffoffoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		offoffoff
High Tide
/ height (m)
3:52PM
2.64
4:20AM
2.93
4:36PM
2.78
5:00AM
3.13
5:15PM
2.91
5:37AM
3.32
5:50PM
3.02
6:11AM
3.49
6:24PM
3.09
6:44AM
3.61
6:58PM
3.12
7:17AM
3.68
7:33PM
3.12
7:50AM
3.68
Low Tide
/ height (m)
9:56PM
0.89
10:30AM
0.88
10:36PM
0.72
11:09AM
0.71
11:12PM
0.55
11:45AM
0.57
11:46PM
0.41
12:20PM
0.45
12:18AM
0.32
12:53PM
0.37
12:50AM
0.27
1:27PM
0.32
1:22AM
0.28
Thu
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Sunrise--8:45--8:44--8:42--8:41--8:41--8:38--8:37
Sunset4:37--4:38--4:40--4:43--4:45--4:46--4:47--
part cloud
rain showers
part cloud
cloud
part cloud
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
light rain
rain showers
part cloud
clear
Rain (mm)
-1---------------42--
Temp. °C654545646757768888864
Feels °C (?)210112310214512223311
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Rossnowlagh at:
surf-forecast.com

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 12 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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