Trá Na Rosan surfForecast / Donegal / Ireland

information circle12 Day Weather and Surf, issued 5 pm Sunday 30 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
11.1° 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 Monday (Dec 01) at 12PM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.9m and 14s. 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 4.0m 17s and forecast to arrive on Saturday (Dec 06) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Friday (Dec 05) at 9PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 1st Dec)5.5ft (1.7m) 11s
Best Surf12PM (Sat 6th Dec)11ft (3.5m) 17s
Most Powerful 3PM (Sat 6th Dec)13ft (4.0m) 17s

Table - best surf conditions forecast for Trá Na Rosan over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 24mm), heaviest during Sun night. Very mild (max 10°C on Sun night, min 6°C on Sun afternoon). Winds decreasing (strong winds from the S on Sun afternoon, light winds from the SSE by Mon afternoon).

Days 3-6 Weather Summary Heavy rain (total 21mm), heaviest during Thu morning. Mild temperatures (max 9°C on Wed afternoon, min 5°C on Thu night). Winds increasing (calm on Wed night, strong winds from the SE by Fri night).

Sun
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
1
2
4
1
4
3
2
0
3
2
2
2
5
3
2
0
3
6
5
2
Swell
Height Map
Wave Height (m) & direction (?)
0.9
WNW
1.5
W
1.7
WNW
2.4
WNW
3
WNW
4
WNW
3.5
WNW
3
WNW
3.5
WNW
3
WNW
1.8
WNW
1
WNW
2.5
WNW
2.5
WNW
2.3
NW
1.9
NW
1.3
WNW
1.7
WNW
4
WNW
3
WNW
2.1
WNW
Period(s) (?)101011161516151414131216161716151419171513
Wave
Graph
(?)Metric surfscale
Energy kJ (?)170424698282135267073579934364425275495251835244108256215976432045854343851430
Wind
(km/h)
35
SSE
25
S
20
SSW
10
SSE
35
SW
35
SSW
40
S
35
S
35
WSW
20
S
35
SSE
15
WSW
25
SSW
20
SSE
30
SSE
40
SE
50
SE
30
SSE
20
SSW
20
SE
45
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
off
offcross-
off
cross-
off
offcross-
off
crosscross-
off
offcrosscross-
off
offoffoffoffoffcross-
off
offoff
High Tide
/ height (m)
2:23AM
2.63
2:39PM
3.02
3:17AM
2.89
3:34PM
3.22
4:07AM
3.15
4:26PM
3.38
4:54AM
3.38
5:16PM
3.48
5:40AM
3.55
6:05PM
3.48
6:27AM
3.63
6:53PM
3.38
7:15AM
3.62
Low Tide
/ height (m)
8:06PM
0.65
8:18AM
0.75
8:59PM
0.43
9:15AM
0.52
9:48PM
0.24
10:07AM
0.28
10:35PM
0.10
10:57AM
0.10
11:21PM
0.03
11:47AM
-0.02
12:07AM
0.02
12:37PM
-0.03
12:52AM
0.08
Sun
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunrise--8:32--8:33--8:34--8:37--8:37--8:40--8:41
Sunset4:07--4:07--4:06--4:05--4:04--4:04--4:02--
light rain
mod rain
part cloud
light rain
rain showers
rain showers
rain showers
light rain
rain showers
cloud
light rain
mod rain
light rain
clear
clear
cloud
light rain
rain showers
rain showers
rain showers
rain showers
Rain (mm)
27-341232-4101---51118
Temp. °C71098989101098786789910811
Feels °C (?)-43452011240321-2-2-22545
  • Map Icons:
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  • 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 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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