Trá Na Rosan Surf Break

Lat Long: 55.23° N 7.82° W

Trá Na Rosan Surf Forecast and Surf Report

Issued: 6 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Trá Na Rosan sea temperature is
16.4° C
2.3° 

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 21 Jul 2026:

  • Best quality surf: Monday 27 Jul, 10PM (local time) - 5ft (1.5m), 9s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 25 Jul, 10AM (local time) - 7ft (2.2m), 10s period, WNW swell with 894 kJ wave energy.
  • Next surfable swell (1★+): Monday 27 Jul, 10PM (local time) - 5ft (1.5m), 9s 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 Monday (Jul 27) at 10PM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.5m and 11s. 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 2.2m 10s and forecast to arrive on Saturday (Jul 25) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Friday (Jul 24) at 4AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 27th Jul)5ft (1.5m) 9s
Best Surf10PM (Mon 27th Jul)5ft (1.5m) 9s
Most Powerful10AM (Sat 25th Jul)7ft (2.2m) 10s

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


Short Range Forecast

Mostly dry. Very mild (max 14°C on Wed morning, min 11°C on Tue afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Sat afternoon. Very mild (max 16°C on Fri afternoon, min 13°C on Sun night). Winds decreasing (strong winds from the WSW on Fri night, light winds from the NW by Sun afternoon).

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
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
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
NNW
6
1.1
NNW
6
1.1
NNW
6
1
NNW
7
0.8
NNW
7
0.7
NW
7
0.6
NNW
6
0.5
NW
6
0.9
WNW
6
1.5
WNW
8
1.6
WNW
8
1.7
WNW
8
2.2
WNW
10
2
NW
10
1.6
NW
10
1.3
WNW
9
1.5
WNW
9
1.7
WNW
9
1.5
WNW
9
1.3
WNW
9
1.6
WNW
9
Wave Graph
Metric surfscale
Energy kJ
82
82
87
91
59
44
26
18
69
329
336
414
894
769
471
288
354
497
370
312
391
Wind (km/h)
25
NNW
25
NNW
20
NNW
15
NNW
15
NW
15
W
15
W
20
W
20
SW
30
WSW
30
WSW
35
SW
30
W
20
W
25
WNW
20
NW
15
NW
15
W
20
WSW
20
W
15
SSW
Wind State
on
on
on
on
on
cross-on
cross-on
cross-on
cross-off
cross
cross
cross-off
cross
cross
cross-on
on
cross-on
cross-on
cross
cross
cross-off
High Tide
12:01PM2.56m
00:26AM2.66m
1:01PM2.43m
1:31AM2.45m
2:15PM2.38m
2:49AM2.35m
3:33PM2.43m
4:04AM2.39m
4:37PM2.57m
5:01AM2.51m
5:26PM2.75m
5:45AM2.66m
6:06PM2.93m
Low Tide
6:01PM0.87m
6:43AM0.97m
7:07PM1.09m
7:49AM1.11m
8:26PM1.19m
9:02AM1.15m
9:45PM1.16m
10:08AM1.08m
10:47PM1.04m
11:01AM0.94m
11:34PM0.88m
11:44AM0.77m
00:14AM0.72m
cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:20
5:22
5:24
5:24
5:26
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:54
9:52
9:51
9:50
9:47
9:46
9:45
 mm
2
2
4
4
1
Temp °C
12
12
12
14
14
14
14
14
14
15
16
15
15
15
15
15
15
14
14
16
16
Feels °C
8
8
7
12
12
13
12
11
10
10
11
11
11
12
13
12
13
11
11
13
14
  • 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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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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