Trá Na Rosan Surf Break

Lat Long: 55.23° N 7.82° W

Trá Na Rosan Surf Forecast and Surf Report

Issued: 12 pm 19 Sep 2026 (local time)

Forecast update in  hr  min

Today's Trá Na Rosan sea temperature is
15.3°C
1.8° 

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 19 Sep 2026:

  • Best quality surf: Friday 25 Sep, 10AM (local time) - 10ft (3.0m), 16s period, WNW swell with offshore winds.
  • Most powerful swell: Friday 25 Sep, 10AM (local time) - 10ft (3.0m), 16s period, WNW swell with 4,523 kJ wave energy.
  • Next surfable swell (1★+): Sunday 20 Sep, 7PM (local time) - 7ft (2.2m), 11s period with NW 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 (Sep 20) at 7PM. The primary swell is predicted to be 2.2m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Trá Na Rosan in the next 16 days are 3.0m 16s and forecast to arrive on Friday (Sep 25) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Sep 24) at 1PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sun 20th Sep)7ft (2.2m) 11s
Best Surf10AM (Fri 25th Sep)10ft (3.0m) 16s
Most Powerful10AM (Fri 25th Sep)10ft (3.0m) 16s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Warm (max 20°C on Mon morning, min 12°C on Sun morning). Winds decreasing (strong winds from the WSW on Sat night, light winds from the S by Mon night).

Days 4-6 Weather Summary

Heavy rain (total 20mm), heaviest during Tue night. Very mild (max 18°C on Thu afternoon, min 10°C on Wed night). Winds increasing (calm on Wed afternoon, strong winds from the SSE by Thu morning).

Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
2
2
1
1
2
0
1
3
0
0
3
0
0
3
5
5
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
WNW
11
3.5
WNW
11
3.5
WNW
12
3
WNW
12
2.4
WNW
11
1.7
WNW
12
1.5
WNW
12
1.5
WNW
11
1.4
WNW
10
1.5
W
10
1.3
W
11
2
WNW
14
1.9
WNW
13
1.8
WNW
12
1.7
NW
11
1.5
NW
11
1.2
NW
12
1.7
WNW
12
3
WNW
16
3
WNW
16
2.3
WNW
13
Wave Graph
Metric surfscale
Energy kJ
2339
2771
3388
2077
1375
871
612
467
386
487
396
1490
1226
952
741
534
407
807
4523
4161
1780
Wind (km/h)
45
WSW
45
WSW
45
W
30
W
20
WSW
25
SSE
20
SSW
20
SW
15
S
10
WNW
5
NW
10
N
25
WNW
20
WNW
20
SSE
40
SSE
35
S
20
SSE
20
SSE
10
S
15
W
Wind State
cross
cross
cross
cross-on
cross
off
cross-off
cross-off
off
cross-on
on
on
cross-on
cross-on
off
off
cross-off
off
off
cross-off
cross-on
High Tide
12:19PM2.27m
1:15AM2.06m
2:25PM2.25m
3:15AM2.13m
3:50PM2.44m
4:17AM2.33m
4:38PM2.70m
4:57AM2.56m
5:13PM2.96m
5:30AM2.79m
5:44PM3.19m
6:01AM3.00m
6:14PM3.40m
Low Tide
6:56PM1.42m
7:33AM1.42m
9:03PM1.37m
9:17AM1.28m
10:12PM1.15m
10:14AM1.03m
10:52PM0.88m
10:53AM0.77m
11:25PM0.61m
11:26AM0.52m
11:54PM0.36m
11:57AM0.30m
00:23AM0.15m
part cloud
part cloud
clear
part cloud
part cloud
light rain
clear
clear
part cloud
light rain
light rain
rain showers
clear
clear
part cloud
cloud
part cloud
part cloud
clear
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:11
7:13
7:15
7:16
7:18
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:38
7:36
7:34
7:30
7:29
7:25
7:22
 mm
2
1
2
17
2
Temp °C
14
13
13
13
13
17
20
20
18
13
13
12
12
13
12
14
18
17
16
18
12
Feels °C
5
4
4
7
10
14
16
17
17
12
12
8
7
9
10
7
13
13
13
17
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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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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