Surf Forecasts:
Clonmass Bay (Ards) surf forecast from 10 Nov 2026:
- Best quality surf: Tuesday 17 Nov, 12PM (local time) - 10ft (3.0m), 12s period, NNW swell with cross-offshore winds.
- Most powerful swell: Wednesday 18 Nov, 12AM (local time) - 10ft (3.0m), 14s period, NNW swell with 3,121 kJ wave energy.
- Next surfable swell (1★+): Friday 13 Nov, 3AM (local time) - 6ft (1.8m), 11s period with N swell.
Best Forecast Surf Conditions for Clonmass Bay (Ards) this week:
The surf forecast for Clonmass Bay (Ards) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 13) at 3AM. The primary swell is predicted to be 1.8m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Clonmass Bay (Ards) in the next 16 days are 3.0m 14s and forecast to arrive on Wednesday (Nov 18) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 12s period and expected on Tuesday (Nov 17) at 12AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 13th Nov) | 6ft (1.8m) 11s |
| Best Surf | 12PM (Tue 17th Nov) | 10ft (3.0m) 12s |
| Most Powerful | 12AM (Wed 18th Nov) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Clonmass Bay (Ards) over the next 16 days.
Short Range ForecastMostly dry. Mild temperatures (max 9°C on Tue morning, min 7°C on Mon night). Winds increasing (light winds from the E on Mon night, fresh winds from the NNE by Wed night). | Days 5-7 Weather SummarySome drizzle, heaviest during Sun afternoon. Very mild (max 12°C on Sun afternoon, min 3°C on Sat morning). Winds increasing (calm on Thu night, fresh winds from the SSE by Sun morning). | ||||||||||||||||||
Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | ||||||||||||||
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 11 | W 14 | N 12 | N 11 | N 10 | N 9 | N 5 | N 7 | N 12 | N 12 | N 10 | N 10 | N 9 | N 8 | N 8 | N 8 | NNW 14 | NNW 13 | NNW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 0 | 3 | 9 | 30 | 39 | 65 | 339 | 1209 | 1079 | 496 | 231 | 78 | 66 | 33 | 1 | 19 | 54 | 47 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross | glassy | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 6:11AM3.31m | 6:26PM3.18m | 6:43AM3.28m | 6:59PM3.06m | 7:16AM3.19m | 7:32PM2.90m | 7:51AM3.05m | 8:08PM2.72m | 8:31AM2.88m | 8:47PM2.52m | 9:16AM2.70m | 9:34PM2.33m | |||||||
Low Tide | 11:54PM0.25m | 12:14PM0.29m | 00:26AM0.33m | 12:48PM0.37m | 00:58AM0.44m | 1:24PM0.51m | 1:32AM0.57m | 2:01PM0.69m | 2:07AM0.73m | 2:42PM0.88m | 2:47AM0.88m | 3:31PM1.06m | |||||||
 |  |  |  | | |  | | | | | | | | | | |  |  | |
 | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:58 | — | — | 8:00 | — | — | 8:03 | — | — |
 | — | — | 4:36 | — | — | 4:35 | — | — | 4:32 | — | — | 4:30 | — | — | 4:29 | — | — | 4:28 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 |
Temp °C | 8 | 9 | 9 | 8 | 9 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 5 | 6 | 7 | 8 | 10 | 12 | 12 |
Feels °C | 4 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 5 | 4 | 1 | 1 | 2 | 2 | 3 | 7 | 9 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 10 | NW 9 | NW 9 | N 10 | N 9 | W 9 | N 15 | N 13 | N 12 | N 10 | N 10 | N 9 | N 8 | N 8 | W 12 | W 12 | W 11 | W 11 |
| kJ | 75 | 37 | 22 | 20 | 30 | 39 | 2 | 5 | 324 | 1079 | 496 | 231 | 78 | 66 | 33 | 25 | 134 | 121 | 114 |
Swell 2 Height (m) Direction Period (s) | W 14 | W 14 | W 13 | W 15 | W 15 | WNW 8 | NW 8 | W 10 | — | — | — | NW 7 | NW 7 | SW 4 | WSW 6 | NW 8 | NNW 14 | NNW 13 | NNW 12 |
| kJ | 37 | 36 | 13 | 17 | 41 | 6 | 2 | 2 | — | — | — | 11 | 7 | 3 | 19 | 3 | 19 | 54 | 47 |
Swell 3 Height (m) Direction Period (s) | — | — | N 12 | N 11 | WNW 8 | W 14 | W 11 | — | — | — | — | W 16 | W 15 | W 13 | W 12 | N 8 | WSW 7 | NW 9 | ENE 9 |
| kJ | — | — | 3 | 9 | 7 | 15 | 2 | — | — | — | — | 5 | 17 | 14 | 12 | 1 | 5 | 3 | 17 |
Wind waves Height (m) Direction Period (s) | E 2 | ENE 2 | ENE 2 | NE 4 | N 5 | N 5 | N 5 | N 7 | N 12 | — | — | — | — | SSE 2 | S 3 | SW 8 | S 5 | SSE 5 | SSE 4 |
| kJ | 1 | 1 | 1 | 6 | 23 | 34 | 65 | 339 | 1209 | — | — | — | — | 1 | 4 | 292 | 89 | 100 | 31 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 14 | 27 | 27 | 34 | 33 | 197 | 306 | 77 | 77 | 33 | 0 | 1 | 1 | 7 | 14 | 14 | 133 | 111 | 7 |
Best forecast wave conditions in Donegal | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Clonmass Bay (Ards) Surf forecast
The above surf forecast table for Clonmass Bay (Ards) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Clonmass Bay (Ards) can be found by selecting the local surf guide option on the grey menu. Our Clonmass Bay (Ards) 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 (Clonmass Bay (Ards)) 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 Clonmass Bay (Ards) 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.
Clonmass Bay (Ards) is 26 km (16 miles) from the city of Letterkenny. If you plan a holiday in Donegal, look for hotels and other accommodation in Letterkenny. Letterkenny has rooms for a wide range of budgets as well as car hire and transport links.
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