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Surf Forecasts:

Rossnowlagh surf break

Rossnowlagh surfForecast / Donegal / Ireland

information circle12 Day Weather and Surf, issued 11 pm Monday 16 Feb 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
7.1° C
 (Which is 2.0°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 Tuesday (Feb 17) at 9AM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.6m and 11s. 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 4.0m 16s and forecast to arrive on Sunday (Feb 22) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Wednesday (Feb 18) at 3AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 17th Feb)6ft (1.8m) 13s
Best Surf 9AM (Thu 19th Feb)11ft (3.5m) 13s
Most Powerful 9PM (Sun 22nd Feb)13ft (4.0m) 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 Moderate rain (total 13mm), heaviest on Wed afternoon. Mild temperatures (max 5°C on Mon night, min 2°C on Tue morning). Winds increasing (calm on Mon night, strong winds from the ESE by Tue night).

Days 3-6 Weather Summary Heavy rain (total 22mm), heaviest during Sat night. Very mild (max 12°C on Sat morning, min 3°C on Thu night). Winds increasing (light winds from the SE on Thu night, strong winds from the WSW by Sun afternoon).

Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Mon
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
3
0
0
0
0
1
!
4
2
1
0
0
0
0
0
0
0
0
3
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
W
1.8
W
1.3
W
0.7
W
0.5
W
0.6
W
1.5
W
3.5
W
3
W
2.2
W
1.7
W
1.7
W
1.2
W
3
W
3
W
2.5
W
2.2
W
4
W
4
W
3
W
2.1
W
Period(s) (?)141312111111141312121111191716151416151414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)304210944881215785894373422971288670686103751064226262917707570733532081650
Wind
(km/h)
10
N
5
ESE
25
ESE
35
ESE
35
ESE
30
ESE
25
ESE
20
SE
10
SSE
20
SSE
15
S
35
WSW
40
SW
20
SSW
30
SW
25
SW
25
SW
40
SW
40
WNW
10
WNW
20
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		cross
High Tide
/ height (m)
5:47AM
3.63
6:04PM
3.23
6:19AM
3.80
6:37PM
3.34
6:51AM
3.88
7:10PM
3.39
7:24AM
3.87
7:45PM
3.38
7:59AM
3.76
8:22PM
3.30
8:38AM
3.55
9:03PM
3.15
9:22AM
3.26
Low Tide
/ height (m)
11:25PM
0.36
11:58AM
0.26
11:57PM
0.21
12:30PM
0.11
12:28AM
0.12
1:01PM
0.02
1:01AM
0.10
1:34PM
0.02
1:37AM
0.16
2:09PM
0.12
2:15AM
0.29
2:46PM
0.31
2:57AM
0.50
3:29PM
0.57
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Mon
23
Sunrise-7:50--7:48--7:46--7:43--7:41--7:39--7:37-
Sunset--5:43--5:45--5:46--5:49--5:51--5:52--5:54
clear
cloud
cloud
light rain
light rain
light rain
cloud
light rain
rain showers
part cloud
rain showers
light rain
light rain
light rain
cloud
mod rain
light rain
rain showers
rain showers
part cloud
cloud
Rain (mm)
---155-11-6121-10111--
Temp. °C53443443471010111212121110788
Feels °C (?)-1-3-3-5-6-3-4-21212466741-232
  • 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:
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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 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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