Trá Na Rosan Surf Break

Lat Long: 55.23° N 7.82° W

Trá Na Rosan Surf Forecast and Surf Report

Issued: 6 am 18 Oct 2026 (local time)

Forecast update in  hr  min

Today's Trá Na Rosan sea temperature is
13.8°C
1.6° 

Trá Na Rosan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Trá Na Rosan surf forecast from 18 Oct 2026:

  • Best quality surf: Sunday 25 Oct, 1AM (local time) - 18ft (5.5m), 13s period, WNW swell with onshore winds.
  • Most powerful swell: Sunday 25 Oct, 12PM (local time) - 20ft (6.0m), 14s period, WNW swell with 13,573 kJ wave energy.
  • Next surfable swell (1★+): Sunday 18 Oct, 4PM (local time) - 4.5ft (1.4m), 14s period with WNW swell.

Best Forecast Surf Conditions for Trá Na Rosan this week:

The surf forecast for Trá Na Rosan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Oct 18) at 4PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.4m and 11s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Trá Na Rosan in the next 16 days are 6.0m 14s and forecast to arrive on Sunday (Oct 25) at 12PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Saturday (Oct 24) at 4PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Sun 18th Oct)4.5ft (1.4m) 14s
Best Surf 1AM (Sun 25th Oct)18ft (5.5m) 13s
Most Powerful12PM (Sun 25th Oct)20ft (6.0m) 14s

Table - best surf conditions forecast for Trá Na Rosan over the next 16 days.


Short Range Forecast

Light rain (total 2mm), mostly falling on Tue night. Very mild (max 12°C on Mon afternoon, min 8°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 42mm), heaviest during Wed morning. Very mild (max 11°C on Thu morning, min 9°C on Wed night). Winds increasing (calm on Thu night, severe gales from the NW by Fri night).

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
2
3
4
4
3
3
2
0
0
3
1
1
3
0
0
0
0
0
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
WNW
10
1.4
WNW
14
1.2
W
12
1.6
WNW
15
1.9
NW
15
1.9
NW
14
1.7
WNW
13
1.7
WNW
13
1.7
WNW
12
4
WNW
11
3
NW
13
2.2
NW
13
2.2
WNW
12
2
WNW
11
1.7
WNW
11
3
NW
7
4
WNW
9
4
NW
13
3
WNW
13
2.4
WNW
12
5.5
WNW
13
Wave Graph
Metric surfscale
Energy kJ
186
778
404
1178
1576
1428
1045
904
849
4322
3365
1609
1288
1012
724
846
2459
5651
2890
1622
10007
Wind (km/h)
10
S
5
SSE
15
SSE
15
SSE
20
SE
20
SSE
20
SSE
20
SE
20
SE
20
NNW
45
WNW
20
SW
20
WSW
30
SW
5
NW
60
NW
65
WNW
70
WNW
60
NW
50
NW
10
NW
Wind State
off
off
off
off
off
off
off
off
cross-off
on
cross-on
cross-off
cross
cross-off
glassy
on
cross-on
cross-on
cross-on
cross-on
on
High Tide
11:42AM2.36m
00:23AM2.06m
1:25PM2.30m
2:14AM2.08m
2:52PM2.43m
3:27AM2.26m
3:46PM2.65m
4:13AM2.49m
4:26PM2.89m
4:51AM2.74m
5:02PM3.13m
5:25AM2.99m
5:36PM3.34m
Low Tide
6:14PM1.37m
6:32AM1.35m
8:08PM1.34m
8:16AM1.27m
9:22PM1.14m
9:22AM1.08m
10:07PM0.88m
10:08AM0.84m
10:42PM0.61m
10:45AM0.61m
11:15PM0.35m
11:21AM0.38m
11:47PM0.14m
clear
clear
clear
clear
part cloud
clear
cloud
cloud
rain showers
heavy rain
light rain
rain showers
rain showers
rain showers
mod rain
light rain
light rain
light rain
rain showers
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:04
—
—
8:07
—
—
8:08
—
—
8:11
—
—
8:14
—
—
8:15
—
—
8:18
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—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:25
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—
6:22
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—
6:21
—
—
6:19
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—
6:15
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—
6:14
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—
6:12
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 mm
—
—
—
—
—
—
—
—
2
15
3
3
3
2
7
3
1
5
3
1
—
Temp °C
8
10
9
9
12
11
11
12
10
10
10
10
11
11
9
9
9
10
11
12
12
Feels °C
5
8
5
4
7
7
6
7
6
5
0
4
4
4
5
-4
-5
-5
-1
3
6
  • 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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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 16 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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