Surf Forecasts:
Rossnowlagh surf forecast from 8 Oct 2026:
- Best quality surf: Sunday 11 Oct, 4AM (local time) - 4.5ft (1.3m), 12s period, NW swell with glassy winds.
- Most powerful swell: Wednesday 14 Oct, 1PM (local time) - 11ft (3.5m), 14s period, W swell with 4,410 kJ wave energy.
- Next surfable swell (1★+): Sunday 11 Oct, 4AM (local time) - 4.5ft (1.3m), 12s 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 Sunday (Oct 11) at 4AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 1.3m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rossnowlagh in the next 16 days are 3.5m 14s and forecast to arrive on Wednesday (Oct 14) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Oct 12) at 4AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 11th Oct) | 4.5ft (1.3m) 12s |
| Best Surf | 4AM (Sun 11th Oct) | 4.5ft (1.3m) 12s |
| Most Powerful | 1PM (Wed 14th Oct) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Rossnowlagh over the next 16 days.
Short Range ForecastHeavy rain (total 37mm), heaviest during Thu afternoon. Very mild (max 15°C on Thu afternoon, min 9°C on Sat night). Winds decreasing (strong winds from the W on Fri afternoon, calm by Sat night). | Days 5-7 Weather SummaryHeavy rain (total 28mm), heaviest during Mon night. Very mild (max 17°C on Mon afternoon, min 10°C on Sun night). Winds increasing (light winds from the SSE on Mon morning, near gales from the SSW by Tue night). | |||||||||||||||||||
Thu 8 | Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | ||||||||||||||
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) | WNW 10 | W 10 | W 10 | W 10 | WNW 12 | WNW 13 | WNW 12 | WNW 12 | W 11 | W 10 | W 10 | W 12 | W 11 | WSW 5 | WSW 7 | W 9 | W 11 | W 13 | W 13 | W 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 231 | 895 | 1418 | 1945 | 3759 | 3972 | 2538 | 1288 | 338 | 177 | 68 | 98 | 62 | 126 | 175 | 380 | 449 | 3890 | 3808 | 2174 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | on | on | cross-on | on | on | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-on | cross-on | cross | cross-on | on | cross-on |
High Tide | 5:08PM3.64m | 5:38AM3.29m | 5:48PM3.75m | 6:14AM3.45m | 6:24PM3.77m | 6:47AM3.54m | 6:59PM3.69m | 7:19AM3.56m | 7:32PM3.54m | 7:50AM3.50m | 8:05PM3.32m | 8:22AM3.37m | 8:38PM3.08m | |||||||
Low Tide | 11:26PM0.13m | 11:30AM0.31m | 00:01AM0.01m | 12:07PM0.18m | 00:32AM-0.01m | 12:42PM0.13m | 1:03AM0.04m | 1:17PM0.16m | 1:32AM0.17m | 1:51PM0.27m | 2:02AM0.34m | 2:25PM0.44m | 2:33AM0.56m | |||||||
 |  |  | | | | |  |  |  | |  | | | | |  | | | | |
 | — | — | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:58 | — | — |
 | 6:52 | — | — | 6:50 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:39 | — | — | 6:37 | — |
mm | 12 | 16 | 2 | 2 | 2 | 2 | 1 | — | — | — | 1 | 1 | — | 8 | 1 | 1 | 14 | 2 | 2 | 5 |
Temp °C | 15 | 15 | 12 | 12 | 11 | 12 | 12 | 11 | 12 | 13 | 13 | 15 | 17 | 16 | 14 | 14 | 15 | 11 | 12 | 10 |
Feels °C | 10 | 11 | 5 | 3 | 2 | 5 | 5 | 7 | 8 | 9 | 10 | 14 | 15 | 13 | 9 | 10 | 6 | 2 | 3 | 4 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | — | — | — | — | — | — | WNW 12 | W 11 | W 10 | W 10 | W 12 | W 11 | — | W 11 | WNW 13 | W 11 | — | — | W 12 |
| kJ | 231 | — | — | — | — | — | — | 1288 | 338 | 177 | 68 | 98 | 62 | — | 9 | 31 | 449 | — | — | 2174 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 11 | NW 10 | NW 9 | NW 8 | NW 8 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 171 | 79 | 21 | 3 | 3 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | W 10 | W 10 | W 10 | WNW 12 | WNW 13 | WNW 12 | — | — | — | SE 3 | SSE 3 | S 3 | WSW 5 | WSW 7 | W 9 | SSW 5 | W 13 | W 13 | — |
| kJ | 32 | 895 | 1418 | 1945 | 3759 | 3972 | 2538 | — | — | — | 5 | 6 | 5 | 126 | 175 | 380 | 63 | 3890 | 3808 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 284 | 123 | 492 | 803 | 733 | 733 | 711 | 48 | 0 | 8 | 111 | 8 | 66 | 73 | 433 | 439 | 48 | 436 | 733 | 106 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.
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