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Surf Forecasts:

Trá Na Rosan surfForecast / Donegal / Ireland

information circle12 Day Weather and Surf, issued 5 pm Thursday 20 Nov 2025 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
11.7° C
 (Which is slightly warmer than usual)

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 Friday (Nov 21) at 3AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.9m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Trá Na Rosan in the next 12 days are 2.5m 12s and forecast to arrive on Sunday (Nov 23) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Friday (Nov 21) at 3PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 21st Nov)2ft (0.6m) 10s
Best Surf 6PM (Sat 22nd Nov)5ft (1.5m) 12s
Most Powerful12PM (Sun 23rd Nov)8ft (2.5m) 12s

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 Heavy rain (total 23mm), heaviest during Sat night. Very mild (max 10°C on Fri night, min 4°C on Fri morning). Winds increasing (light winds from the WNW on Thu night, strong winds from the WSW by Sun morning).

Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Sun afternoon. Very mild (max 10°C on Sun night, min 7°C on Wed morning). Winds decreasing (gales from the N on Sun night, light winds from the WNW by Tue night).

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
NNW
0.7
N
0.8
NNW
0.7
WNW
0.8
WNW
1.4
WNW
1.5
WNW
1.3
WNW
2.5
WNW
2.5
WNW
3
N
2.5
N
2.5
NNW
2.2
NNW
2.1
N
1.4
N
0.9
WNW
0.4
WNW
1.3
W
2
W
2.5
W
Period(s) (?)71110141313121112129888879106911
Wave
Graph
(?)Metric surfscale
Energy kJ (?)414110122166241604655401177720051407997831614579215124321356641612
Wind
(km/h)
35
N
5
WNW
20
S
25
S
20
W
25
WNW
15
SSW
35
SSE
50
WSW
35
NNW
65
N
55
N
50
NNW
45
N
35
NNE
25
N
15
W
25
SSW
40
SSW
35
SW
20
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
off		offcrosscross-
on		cross-
off		offcrossoncross-
on		ononcross-
on		cross-
on		oncrosscross-
off		cross-
off		cross-
off		cross
High Tide
/ height (m)
5:58PM
3.10
6:15AM
3.21
6:30PM
3.05
6:48AM
3.18
7:03PM
2.95
7:22AM
3.10
7:36PM
2.83
7:59AM
2.99
8:12PM
2.68
8:39AM
2.86
8:53PM
2.52
9:25AM
2.73
9:43PM
2.38
10:20AM
2.64
Low Tide
/ height (m)
11:59PM
0.39
12:20PM
0.43
12:30AM
0.44
12:54PM
0.50
1:03AM
0.51
1:29PM
0.62
1:36AM
0.61
2:07PM
0.75
2:13AM
0.71
2:48PM
0.89
2:53AM
0.83
3:38PM
1.00
3:43AM
0.94
Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise--8:14--8:15--8:18--8:19--8:22--8:23--8:25
Sunset4:19--4:17--4:16--4:15--4:14--4:13--4:12--
light rain
part cloud
cloud
light rain
rain showers
rain showers
cloud
mod rain
rain showers
light rain
rain showers
cloud
light rain
rain showers
part cloud
part cloud
part cloud
cloud
light rain
light rain
cloud
Rain (mm)
1--241-9632-23----22-
Temp. °C77561010109109109999998101212
Feels °C (?)-22-10446-211-1-4-2-30251179
  • 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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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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