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Surf Forecasts:

Trá Na Rosan surfForecast / Donegal / Ireland

information circle12 Day Weather and Surf, issued 5 am Saturday 17 Jan 2026 IST
Forecast update in hr  min  s Forecast update imminent
Trá Na Rosan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trá Na Rosan sea temperature is
8.2° C
 (Which is 1.2°C colder than average for this time of year)

Best Forecast Surf Conditions for Trá Na Rosan this week:

The surf forecast for Trá Na Rosan over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 17) at 9PM. The primary swell is predicted to be 1.2m and 11s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Trá Na Rosan in the next 12 days are 3.0m 16s and forecast to arrive on Tuesday (Jan 20) 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 1.1m 4s period and expected on Saturday (Jan 24) at 12AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 17th Jan)4ft (1.2m) 11s
Best Surf 9PM (Mon 19th Jan)10ft (3.0m) 16s
Most Powerful12AM (Tue 20th Jan)10ft (3.0m) 16s

Table - best surf conditions forecast for Trá Na Rosan over the next 12 days.

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

Short Range Forecast Light rain (total 2mm), mostly falling on Mon night. Mild temperatures (max 7°C on Sat afternoon, min 5°C on Sat night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Tue night. Mild temperatures (max 8°C on Tue afternoon, min 5°C on Wed morning). Winds decreasing (strong winds from the SE on Tue night, moderate winds from the ESE by Thu night).

Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
1
2
0
0
1
3
4
4
3
2
1
1
0
0
2
2
2
0
0
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.5
WNW
1.3
WNW
1.1
WNW
1
WNW
0.9
WNW
0.6
WNW
1.4
NW
3
WNW
3
NW
2.5
NW
2.1
WNW
1.5
WNW
1.3
WNW
1.3
WNW
1.1
WNW
1.9
WNW
2.2
WNW
1.7
WNW
1.4
WNW
0.9
WNW
2.2
WNW
Period(s) (?)13121110109181616161514131212191614131515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)76948527019013764128340214229300118858705204853172472257312236334132074
Wind
(km/h)
10
SE
15
SE
20
SE
25
SSE
30
S
20
SSE
30
SSE
30
SSE
20
SE
30
SE
40
SE
45
SE
30
SE
45
SE
35
ESE
40
SE
30
SE
20
ESE
50
E
35
E
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off		offoffoffoffoffoffcross-
off		offoffoffoffcross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
5:35PM
2.87
5:55AM
3.16
6:09PM
2.97
6:29AM
3.29
6:41PM
3.04
7:01AM
3.39
7:14PM
3.06
7:34AM
3.43
7:47PM
3.04
8:07AM
3.42
8:22PM
2.99
8:41AM
3.35
8:59PM
2.90
Low Tide
/ height (m)
11:27AM
0.66
11:34PM
0.53
12:02PM
0.52
12:07AM
0.38
12:36PM
0.40
12:39AM
0.26
1:09PM
0.32
1:11AM
0.20
1:42PM
0.28
1:44AM
0.20
2:16PM
0.29
2:18AM
0.26
2:52PM
0.34
2:55AM
0.38
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise8:45--8:45--8:44--8:41--8:41--8:40--8:37--
Sunset-4:36--4:37--4:39--4:42--4:44--4:45--4:46-
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
rain showers
part cloud
part cloud
light rain
part cloud
cloud
rain showers
cloud
light rain
part cloud
light rain
rain showers
rain showers
Rain (mm)
--------2--3--2-3-122
Temp. °C676676676788788878776
Feels °C (?)331-100-103-3-1-3-2-2010-2-4-20
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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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 Trá Na Rosan 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 Trá Na Rosan at:
surf-forecast.com

Information about the Trá Na Rosan Surf forecast

The above surf forecast table for Trá Na Rosan provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Trá Na Rosan can be found by selecting the local surf guide option on the grey menu. Our Trá Na Rosan 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 (Trá Na Rosan) 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 Trá Na Rosan 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.

Are you planning a holiday in Donegal? If you are looking for accommodation near Trá Na Rosan, camping, hotels and holiday cottages in Donegal, consider staying in Letterkenny which is 31 km (19 miles) away. Other places in and around Donegal where you can find information about places to rent, and car hire include Malin Head which is 35 km (22 miles) away, Derry, Derry and Londonderry County Borough.

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