Surf Forecasts:
Rossnowlagh surf forecast from 15 Nov 2026:
- Best quality surf: Wednesday 18 Nov, 12PM (local time) - 10ft (3.0m), 17s period, W swell with offshore winds.
- Most powerful swell: Wednesday 18 Nov, 3PM (local time) - 10ft (3.0m), 17s period, W swell with 5,046 kJ wave energy.
- Next surfable swell (1★+): Monday 16 Nov, 3AM (local time) - 3.5ft (1.0m), 10s period with NW swell.
Best Forecast Surf Conditions for Rossnowlagh this week:
The surf forecast for Rossnowlagh over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Nov 16) at 3AM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.5m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rossnowlagh in the next 16 days are 3.0m 17s and forecast to arrive on Wednesday (Nov 18) at 3PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Monday (Nov 16) at 9PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 16th Nov) | 3.5ft (1.0m) 10s |
| Best Surf | 12PM (Wed 18th Nov) | 10ft (3.0m) 17s |
| Most Powerful | 3PM (Wed 18th Nov) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Rossnowlagh over the next 16 days.
Short Range ForecastModerate rain (total 16mm), heaviest on Mon night. Very mild (max 10°C on Sat night, min 3°C on Mon morning). Winds increasing (calm on Sun night, strong winds from the ESE by Mon night). | Days 5-7 Weather SummarySome drizzle, heaviest during Tue night. Mild temperatures (max 9°C on Wed morning, min 3°C on Thu night). Winds decreasing (fresh winds from the ENE on Wed night, calm by Fri afternoon). | ||||||||||||||||||
Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | ||||||||||||||
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) | NW 9 | NW 8 | NW 9 | NW 10 | NW 9 | W 10 | NW 12 | W 12 | W 12 | W 14 | W 17 | W 17 | W 16 | W 14 | W 13 | W 13 | W 12 | W 12 | W 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 13 | 129 | 408 | 284 | 83 | 31 | 23 | 113 | 437 | 1472 | 3464 | 5046 | 3351 | 1196 | 595 | 256 | 143 | 132 | 85 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | off | off | off | cross-off | cross-off | off | glassy | cross-off |
High Tide | 9:02AM2.92m | 9:22PM2.39m | 9:56AM2.79m | 10:25PM2.25m | 10:59AM2.71m | 11:42PM2.23m | 12:06PM2.72m | 00:57AM2.33m | 1:07PM2.81m | 1:58AM2.54m | 2:02PM2.96m | 2:48AM2.80m | |||||||
Low Tide | 2:22AM0.90m | 3:15PM1.09m | 3:06AM1.08m | 4:17PM1.22m | 4:04AM1.23m | 5:37PM1.25m | 5:22AM1.32m | 6:52PM1.13m | 6:44AM1.28m | 7:49PM0.92m | 7:50AM1.14m | 8:34PM0.68m | |||||||
 |  | |  | |  |  |  | |  |  | |  | |  |  | | | | |
 | — | 8:00 | — | — | 8:03 | — | — | 8:04 | — | — | 8:07 | — | — | 8:08 | — | — | 8:11 | — | — |
 | — | — | 4:31 | — | — | 4:30 | — | — | 4:29 | — | — | 4:27 | — | — | 4:25 | — | — | 4:23 | — |
mm | 2 | — | — | — | — | 1 | 10 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 10 | 8 | 6 | 5 | 4 | 4 | 8 | 9 | 9 | 7 | 9 | 9 | 8 | 7 | 7 | 5 | 6 | 7 | 4 |
Feels °C | 6 | 2 | -1 | -1 | -1 | -4 | 4 | 5 | 6 | 3 | 5 | 5 | 2 | 0 | 0 | 0 | 3 | 5 | 1 |
Swell 1 Height (m) Direction Period (s) | NW 9 | W 12 | W 11 | W 11 | NW 9 | NW 9 | NW 12 | W 12 | W 12 | W 14 | W 17 | W 17 | W 16 | W 14 | W 13 | W 13 | W 12 | W 12 | W 11 |
| kJ | 13 | 26 | 22 | 36 | 83 | 31 | 23 | 113 | 437 | 1472 | 3464 | 5046 | 3351 | 1196 | 595 | 256 | 143 | 132 | 85 |
Swell 2 Height (m) Direction Period (s) | W 5 | NW 11 | — | NW 14 | W 10 | W 10 | W 9 | NW 11 | NW 11 | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 19 | — | 33 | 51 | 31 | 6 | 5 | 4 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 11 | NNW 16 | — | — | NW 13 | NW 13 | W 11 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 25 | — | — | 28 | 27 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | NW 8 | NW 9 | NW 10 | — | SE 3 | SE 5 | SSW 3 | WSW 5 | — | — | — | — | ENE 3 | — | — | — | — | — |
| kJ | 10 | 129 | 408 | 284 | — | 4 | 53 | 7 | 42 | — | — | — | — | 7 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 43 | 233 | 334 | 143 | 0 | 250 | 465 | 73 | 8 | 0 | 8 | 0 | 193 | 277 | 277 | 0 | 0 | 0 | 8 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Never miss your swells again.
Built by surfers, trusted by millions for over 20 years. The Wavefinder in our app makes it even easier to find where the best waves are breaking. Follow the yellow stars along your coast and get there first.
Scan the QR code to open the Surf‑Forecast app
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rossnowlagh surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Rossnowlagh Surf forecast
The above surf forecast table for Rossnowlagh provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rossnowlagh can be found by selecting the local surf guide option on the grey menu. Our Rossnowlagh 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 (Rossnowlagh) 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 Rossnowlagh 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.
Rossnowlagh is 17 km (11 miles) from Killybegs. If you plan a holiday in Donegal, look for hotels and other accommodation in Killybegs. Killybegs has rooms for a wide range of budgets as well as car hire and transport links.
Nearest