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Surf Forecasts:

Trá Na Rosan surfForecast / Donegal / Ireland

information circle12 Day Weather and Surf, issued 11 am Tuesday 20 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
8.0° C
 (Which is 1.3°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 Thursday (Jan 22) at 12PM. The primary swell is predicted to be 2.3m and 15s 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 2.0m 18s and forecast to arrive on Saturday (Jan 24) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Jan 20) at 3PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Thu 22nd Jan)7.5ft (2.3m) 15s
Best Surf12PM (Thu 22nd Jan)7.5ft (2.3m) 15s
Most Powerful12PM (Sat 24th Jan)6.5ft (2.0m) 18s

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 Moderate rain (total 18mm), heaviest on Wed night. Very mild (max 10°C on Wed night, min 6°C on Tue night). Winds decreasing (near gales from the ESE on Tue afternoon, light winds from the SSE by Thu night).

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Fri afternoon. Mild temperatures (max 8°C on Fri afternoon, min 4°C on Sun night). Winds decreasing (near gales from the ESE on Sat afternoon, moderate winds from the ESE by Sun night).

Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
1
0
0
0
3
4
3
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
NW
2
WNW
1.7
WNW
1.4
WNW
1.3
WNW
1
WNW
2.2
WNW
2.2
WNW
1.9
WNW
1.4
WNW
0.9
WNW
1.9
WNW
1.8
WNW
2.1
WNW
1.7
WNW
1.1
WNW
1
WNW
0.8
WNW
0.7
WNW
0.7
WNW
0.5
WNW
Period(s) (?)151514131212161413131216151715141312111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)284817141080649451256230020531180633254178014522446124146032618410710970
Wind
(km/h)
40
ESE
50
ESE
45
SSE
30
SE
45
ESE
25
SE
30
SE
15
SSE
20
SE
45
ESE
45
E
50
E
50
E
50
ESE
45
ESE
35
ESE
30
ESE
30
ESE
40
ESE
45
ESE
50
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		offoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
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
9:19AM
3.22
9:41PM
2.79
10:02AM
3.04
10:31PM
2.65
10:57AM
2.84
11:36PM
2.53
Low Tide
/ height (m)
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
3:32PM
0.45
3:38AM
0.55
4:19PM
0.61
4:31AM
0.75
5:18PM
0.79
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Sunrise8:41--8:41--8:40--8:37--8:37--8:34--8:33--
Sunset-4:42--4:44--4:45--4:46--4:49--4:51--4:53-
cloud
light rain
light rain
part cloud
cloud
rain showers
rain showers
light rain
rain showers
cloud
rain showers
cloud
cloud
cloud
light rain
cloud
cloud
part cloud
part cloud
cloud
cloud
Rain (mm)
-31--5351-2---2------
Temp. °C8877710977787777665443
Feels °C (?)-21-2-1-32231-3-2-4-4-5-5-2-2-2-6-7-9
  • 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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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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