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Surf Forecasts:
Mullaghmore surf forecast from 20 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 7AM (local time) - 5ft (1.6m), 10s period, NW swell with 476 kJ wave energy.
Best Forecast Surf Conditions for Mullaghmore this week:
The most powerful waves expected at Mullaghmore in the next 16 days are 1.6m 10s and forecast to arrive on Thursday (Aug 20) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Aug 25) at 7PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Thu 20th Aug) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Mullaghmore over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s size up what Mullaghmore has in store over the next couple of weeks. I’ll be honest – it’s a bleak outlook for quite a while.
We’ve got a big empty stretch from now all the way through the last week of August and into the start of September. There is no decent surf to speak of for days on end. The swell is mostly tiny, and when there's a little more juice, the wind is making a mess of it. Leave the board in the car for a good ten days.
The one standout – the only real window – is the morning of Monday, 31st August. Mark it. We’ve got a solid 10ft swell from the west, with a period of 10 seconds. The combined energy is cranking at 2191 (strong to very strong wave energy). The wind is light from the east, giving us clean waves. This is for experienced surfers only – that’s a lot of power, and it’s not for the faint-hearted. This reef break will handle it, but you’ve got to know what you’re doing. The swell direction from the west is right in Mullaghmore’s sweet spot (NW). Expect crowds possible once word gets out.
The afternoon of that day fades with onshore wind and a drop to 8ft (1347 energy) – looking marginal. Then it’s back to poor conditions again.
So, bottom line: the first ten days are a total loss. The morning of Monday, 31st August is the one to wait for. A long wait, but that session looks like a true beast for the crew who can handle it.
- Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Wed night. Very mild (max 15°C on Sat morning, min 12°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 12°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the ESE by Tue afternoon). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 9 | W 9 | NW 8 | NW 8 | NW 6 | NW 6 | WNW 5 | NW 6 | WNW 6 | WNW 9 | NW 7 | WNW 10 | WNW 11 | WNW 10 | W 10 | W 10 | W 9 | W 8 | W 11 | W 10 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 172 | 85 | 120 | 75 | 36 | 11 | 11 | 9 | 7 | 15 | 13 | 90 | 280 | 227 | 151 | 89 | 40 | 21 | 84 | 125 | 148 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | glassy | cross-on | on | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 11:41AM2.56m | 00:08AM2.39m | 12:52PM2.41m | 1:34AM2.22m | 2:28PM2.40m | 3:12AM2.25m | 3:50PM2.56m | 4:19AM2.41m | 4:44PM2.80m | 5:04AM2.60m | 5:23PM3.06m | 5:41AM2.80m | 5:57PM3.30m | ||||||||
Low Tide | 5:14AM1.05m | 5:46PM1.21m | 6:15AM1.27m | 7:18PM1.37m | 7:50AM1.36m | 9:06PM1.34m | 9:21AM1.26m | 10:15PM1.16m | 10:19AM1.06m | 11:01PM0.94m | 11:00AM0.83m | 11:37PM0.71m | 11:35AM0.61m | 00:09AM0.50m | |||||||
 |  |  |  | |  |  | |  | | | | | | | | |  |  |  |  | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — |
 | — | 8:54 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — |
mm | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 1 |
Temp °C | 14 | 14 | 13 | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 16 | 16 | 19 | 22 | 17 | 18 | 19 | 17 | 17 | 19 | 17 |
Feels °C | 7 | 7 | 7 | 9 | 8 | 12 | 12 | 12 | 13 | 13 | 15 | 14 | 17 | 19 | 13 | 11 | 13 | 12 | 16 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | W 9 | — | — | W 8 | WNW 7 | W 8 | W 9 | WNW 6 | NW 6 | NW 7 | WNW 10 | WNW 11 | WNW 10 | W 10 | W 10 | W 9 | W 8 | W 11 | W 10 | W 10 |
| kJ | 157 | 85 | — | — | 10 | 9 | 6 | 6 | 7 | 8 | 11 | 90 | 280 | 227 | 151 | 89 | 40 | 21 | 84 | 125 | 148 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 10 | NW 7 | W 10 | W 10 | WNW 9 | WNW 8 | W 10 | — | — | — | WNW 11 | NW 10 | NW 9 | W 7 | NW 10 | N 10 |
| kJ | — | — | — | — | — | 2 | 2 | 2 | 2 | 15 | 13 | 2 | — | — | — | 12 | 4 | 3 | 17 | 4 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 8 | — | — | W 7 | — | W 11 | — | — | — | — | — | — | W 13 | NW 10 | — | — |
| kJ | — | — | — | — | — | 1 | — | — | 1 | — | 2 | — | — | — | — | — | — | 3 | 4 | — | — |
Wind waves Height (m) Direction Period (s) | NNW 9 | NNW 4 | NW 8 | NW 8 | NW 6 | NW 6 | WNW 5 | NW 6 | — | — | — | — | — | — | — | ESE 2 | ESE 3 | ESE 3 | — | W 3 | — |
| kJ | 172 | 35 | 120 | 75 | 36 | 11 | 11 | 9 | — | — | — | — | — | — | — | 1 | 1 | 1 | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 455 | 720 | 414 | 314 | 314 | 159 | 122 | 277 | 46 | 17 | 125 | 3 | 3 | 3 | 19 | 261 | 261 | 197 | 3 | 3 | 3 |
Best forecast wave conditions in Sligo | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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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 Mullaghmore 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 Mullaghmore Surf forecast
The above surf forecast table for Mullaghmore provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mullaghmore can be found by selecting the local surf guide option on the grey menu. Our Mullaghmore 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 (Mullaghmore) 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 Mullaghmore 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.
Mullaghmore is 20 km (12 miles) from Killybegs. If you plan a holiday in Sligo, 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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