Surf Forecasts:
Trá Na Rosan surf forecast from 13 Nov 2026:
- Best quality surf: Thursday 19 Nov, 3AM (local time) - 5.5ft (1.7m), 15s period, WNW swell with cross-offshore winds.
- Most powerful swell: Sunday 15 Nov, 3PM (local time) - 15ft (4.5m), 11s period, NNW swell with 5,053 kJ wave energy.
- Next surfable swell (1★+): Saturday 14 Nov, 6AM (local time) - 2ft (0.6m), 8s 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 Saturday (Nov 14) at 6AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.5m and 8s. 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 4.5m 11s and forecast to arrive on Sunday (Nov 15) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Tuesday (Nov 17) at 9PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 14th Nov) | 2ft (0.6m) 8s |
| Best Surf | 3AM (Thu 19th Nov) | 5.5ft (1.7m) 15s |
| Most Powerful | 3PM (Sun 15th Nov) | 15ft (4.5m) 11s |
Table - best surf conditions forecast for Trá Na Rosan over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 11°C on Sat night, min 5°C on Fri night). Winds increasing (light winds from the W on Fri morning, gales from the N by Sun afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon morning. Mild temperatures (max 8°C on Mon morning, min 5°C on Wed night). Winds decreasing (strong winds from the NNW on Mon morning, light winds from the SE by Wed night). | ||||||||||||||||||||
Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NNW 10 | NNW 10 | NW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 15 | NNW 11 | NNW 9 | NNW 9 | NNW 12 | NNW 12 | N 11 | N 10 | N 7 | W 13 | WNW 13 | WNW 15 | WNW 15 | WNW 14 | WNW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 385 | 231 | 141 | 82 | 148 | 145 | 4832 | 5053 | 795 | 595 | 1632 | 819 | 281 | 127 | 127 | 128 | 418 | 1163 | 1254 | 721 | 356 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | off | off | cross-off | cross-off | on | on | on | on | cross | cross-on | cross-on | cross | cross-off | cross | cross-off | off | cross-off | off |
High Tide | 8:08PM2.72m | 8:31AM2.88m | 8:47PM2.52m | 9:16AM2.70m | 9:34PM2.33m | 10:12AM2.55m | 10:36PM2.19m | 11:19AM2.47m | 11:56PM2.14m | 12:32PM2.48m | 1:14AM2.23m | 1:36PM2.60m | 2:16AM2.41m | ||||||||
Low Tide | 2:01PM0.69m | 2:07AM0.73m | 2:42PM0.88m | 2:47AM0.88m | 3:31PM1.06m | 3:34AM1.03m | 4:33PM1.19m | 4:37AM1.15m | 5:51PM1.21m | 5:54AM1.19m | 7:06PM1.11m | 7:09AM1.12m | 8:04PM0.91m | ||||||||
 | |  | |  | | | |  | |  |  | | | |  | |  | | | | |
 | 7:58 | — | — | 8:00 | — | — | 8:03 | — | — | 8:04 | — | — | 8:07 | — | — | 8:08 | — | — | 8:11 | — | — |
 | — | 4:30 | — | — | 4:29 | — | — | 4:27 | — | — | 4:25 | — | — | 4:23 | — | — | 4:22 | — | — | 4:21 | — |
mm | — | — | — | — | 1 | — | — | 3 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 9 | 9 | 7 | 9 | 9 | 11 | 9 | 6 | 7 | 8 | 8 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 6 |
Feels °C | 4 | 2 | 1 | 2 | 2 | 6 | 4 | -10 | -4 | -1 | 2 | 2 | 2 | 3 | 3 | 2 | 1 | 2 | 2 | 3 | -3 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NW 8 | NNW 8 | NNW 9 | NNW 9 | — | — | NNW 13 | NNW 12 | NNW 12 | NNW 12 | N 11 | N 10 | N 7 | N 6 | WNW 13 | WNW 15 | WNW 15 | WNW 14 | WNW 13 |
| kJ | 385 | 231 | 141 | 82 | 148 | 145 | — | — | 458 | 260 | 1632 | 819 | 281 | 127 | 127 | 101 | 418 | 1163 | 1254 | 721 | 356 |
Swell 2 Height (m) Direction Period (s) | — | W 16 | W 15 | W 6 | W 7 | WSW 9 | — | — | WNW 11 | W 10 | W 10 | WNW 9 | W 9 | W 13 | W 12 | W 11 | N 6 | N 6 | N 5 | N 5 | N 14 |
| kJ | — | 5 | 17 | 24 | 32 | 88 | — | — | 37 | 51 | 50 | 29 | 6 | 13 | 104 | 119 | 64 | 39 | 19 | 20 | 93 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 13 | W 12 | WNW 11 | — | — | — | — | — | — | W 13 | W 10 | — | W 13 | — | N 8 | N 14 | NNW 14 | — |
| kJ | — | — | — | 14 | 12 | 41 | — | — | — | — | — | — | 3 | 2 | — | 128 | — | 12 | 32 | 67 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 3 | S 3 | S 4 | NNW 15 | NNW 11 | NNW 9 | NNW 9 | — | — | ENE 4 | NE 4 | — | — | — | — | — | — | — |
| kJ | — | — | — | 3 | 6 | 4 | 4832 | 5053 | 795 | 595 | — | — | 24 | 28 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 13 | 8 | 0 | 67 | 25 | 35 | 136 | 345 | 140 | 78 | 7 | 54 | 32 | 2 | 7 | 29 | 0 | 0 | 0 | 7 |
Best forecast wave conditions in Donegal | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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