Surf Forecasts:
Ballymastocker surf forecast from 6 Nov 2026:
- Best quality surf: Wednesday 18 Nov, 12PM (local time) - 1.5ft (0.5m), 13s period, N swell with cross-offshore winds.
- Most powerful swell: Sunday 22 Nov, 12AM (local time) - 8ft (2.5m), 11s period, NNW swell with 1,602 kJ wave energy.
- Next surfable swell (1★+): Wednesday 18 Nov, 12PM (local time) - 1.5ft (0.5m), 13s period with N swell.
Best Forecast Surf Conditions for Ballymastocker this week:
The surf forecast for Ballymastocker over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 18) at 12PM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ballymastocker in the next 16 days are 2.5m 11s and forecast to arrive on Sunday (Nov 22) 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 3.5m 14s period and expected on Tuesday (Nov 17) at 6AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Wed 18th Nov) | 1.5ft (0.5m) 13s |
| Best Surf | 12PM (Wed 18th Nov) | 1.5ft (0.5m) 13s |
| Most Powerful | 12AM (Sun 22nd Nov) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Ballymastocker over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Sat morning. Very mild (max 10°C on Fri morning, min 6°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Tue night. Very mild (max 10°C on Wed night, min 6°C on Mon morning). Winds increasing (light winds from the SE on Mon morning, strong winds from the ENE by Wed night). | ||||||||||||||||||||
Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | |||||||||||||||
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) | WNW 12 | WNW 12 | WNW 11 | WNW 10 | N 7 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NW 12 | NW 12 | NW 11 | ESE 2 | N 15 | NNW 12 | N 11 | N 10 | NNW 9 | NNW 8 | N 9 | N 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 29 | 61 | 51 | 26 | 207 | 220 | 122 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | glassy | on | glassy | glassy | glassy | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:09PM3.18m | 4:34AM3.02m | 4:48PM3.23m | 5:09AM3.15m | 5:23PM3.23m | 5:42AM3.22m | 5:57PM3.19m | 6:14AM3.25m | 6:29PM3.11m | 6:45AM3.21m | 7:02PM3.00m | 7:18AM3.12m | 7:35PM2.84m | ||||||||
Low Tide | 9:49AM0.47m | 10:20PM0.29m | 10:31AM0.35m | 10:54PM0.23m | 11:08AM0.28m | 11:26PM0.22m | 11:43AM0.26m | 11:58PM0.26m | 12:18PM0.29m | 00:29AM0.33m | 12:52PM0.38m | 1:01AM0.44m | 1:27PM0.51m | 1:35AM0.58m | |||||||
 | |  |  | |  |  | |  |  | | | | |  | | |  | | | | |
 | 7:43 | — | — | 7:45 | — | — | 7:47 | — | — | 7:50 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — |
 | — | 4:43 | — | — | 4:40 | — | — | 4:38 | — | — | 4:37 | — | — | 4:35 | — | — | 4:32 | — | — | 4:31 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 3 | 10 | — | 4 | 4 | 5 | 3 | — |
Temp °C | 10 | 10 | 10 | 9 | 10 | 10 | 9 | 10 | 8 | 9 | 9 | 7 | 9 | 9 | 8 | 9 | 9 | 10 | 9 | 7 | 7 |
Feels °C | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 6 | 6 | 5 | 3 | 3 | 3 | 2 | 3 | 4 | 3 | 0 | -2 | -2 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NW 8 | NW 12 | NW 11 | NW 10 | NW 9 | NNW 12 | N 11 | N 10 | NNW 9 | NNW 8 | N 9 | N 9 |
| kJ | 123 | 121 | 99 | 56 | 49 | 27 | 14 | 13 | 12 | 14 | 49 | 57 | 24 | 22 | 29 | 61 | 51 | 26 | 207 | 220 | 122 |
Swell 2 Height (m) Direction Period (s) | ENE 4 | NE 4 | — | — | N 7 | — | — | — | NW 15 | NW 12 | WNW 7 | WNW 7 | W 12 | N 15 | NW 9 | NW 8 | NW 8 | NW 7 | W 10 | — | W 11 |
| kJ | 2 | 1 | — | — | 1 | — | — | — | 8 | 24 | 5 | 5 | 3 | 4 | 13 | 11 | 11 | 2 | 2 | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 10 | W 9 | W 13 | — | W 11 | W 17 | W 13 | W 14 | W 11 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 2 | 2 | 14 | — | 2 | 6 | 14 | 15 | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | ESE 2 | ESE 3 | ESE 3 | ENE 3 | NE 4 | NNE 4 | ENE 5 | ENE 4 | E 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 3 | 2 | 7 | 31 | 32 | 33 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 10 | 10 | 10 | 45 | 22 | 210 | 210 | 333 | 10 | 15 | 15 | 22 | 148 | 146 | 171 | 287 | 295 | 297 | 346 | 364 |
Best forecast wave conditions in Donegal | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Ballymastocker Surf forecast
The above surf forecast table for Ballymastocker provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ballymastocker can be found by selecting the local surf guide option on the grey menu. Our Ballymastocker 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 (Ballymastocker) 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 Ballymastocker 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 Ballymastocker, camping, hotels and holiday cottages in Donegal, consider staying in Derry which is 27 km (17 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 27 km (17 miles) away, Derry, Londonderry County Borough and Letterkenny.
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