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Surf Forecasts:
Mullaghmore surf forecast from 3 Sep 2026:
- Best quality surf: Saturday 5 Sep, 1PM (local time) - 4.5ft (1.4m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 10AM (local time) - 11ft (3.5m), 12s period, W swell with 4,068 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 1PM (local time) - 4.5ft (1.4m), 10s period with WNW swell.
Best Forecast Surf Conditions for Mullaghmore this week:
The surf forecast for Mullaghmore over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 1PM. The primary swell is predicted to be 1.4m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mullaghmore in the next 16 days are 3.5m 12s and forecast to arrive on Friday (Sep 04) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Sep 06) at 1PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sat 5th Sep) | 4.5ft (1.4m) 10s |
| Best Surf | 1PM (Sat 5th Sep) | 4.5ft (1.4m) 10s |
| Most Powerful | 10AM (Fri 4th Sep) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Mullaghmore over the next 16 days.
The Lowdown
Right, lads, Rusty here. Let’s have a proper look at what’s coming down the line for Mullaghmore. It’s a bit of a waiting game, with some real power showing up later on, but you’ll need patience and a good read on the conditions.
The first week is a write-off, to be honest. We’ve got a solid stretch of poor surf from the 3rd through to the 11th. The wind is a constant problem, mostly cross or cross-on, and often strong, making a mess of things. There’s a bit of swell on the 4th, with waves up to 12 ft from the west, but that’s paired with a 25-28 mph cross-onshore wind—that’s just a washing machine out there. The combined energy hits 4068 (strong to very strong) but it’s all for nothing with that wind. The water is a touch warmer than normal at 62°, but that’s not much comfort.
Right, the one standout. And it’s a belter. Saturday the 12th of September is your window. The morning brings a nice 8 ft swell from the west-northwest with a period of 13 seconds—that’s proper groundswell, long and powerful. The wind swings around to a light offshore from the east-southeast, a light breeze. That’s clean surf. The combined energy is 1935, which is strong. The afternoon holds up too, with a 6 ft swell and the same offshore wind, energy at 1000. This is a big, powerful reef break, and with that long period, it’ll be lining up nicely. Crowds are sometimes possible here, so you might have a few lads about, but with conditions this good, it’ll be worth it. This is for advanced surfers only—over 8 ft, it’s expert territory.
After that, the 13th and 14th drop right off. The swell disappears, and the wind turns fluky or cross-on again. The 15th of September looks a bit more promising. The morning has a 4 ft west-northwest swell with a 10-second period, and the wind is a light cross-off, keeping things clean. The afternoon is even better, with glassy conditions—flat calm, no wind. The energy is moderate at 300. It’s surfable, but nothing special compared to the 12th. The 16th is small again, and the 17th and 18th get messy with strong cross-onshore winds.
So, the call is simple. The 12th of September is the standout. Don’t waste your time on the rest of the first week or the tail end of the second. The 15th is a decent backup if you’re desperate, but it’s not the main event. Keep an eye on that long-range forecast, but this one looks solid.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Thu afternoon. Very mild (max 17°C on Sat night, min 13°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, light winds from the SW by Sat morning). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Sun night. Warm (max 20°C on Sun afternoon, min 13°C on Mon morning). Mainly strong winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | W 7 | WSW 8 | W 10 | W 12 | W 12 | WNW 12 | W 10 | W 10 | WNW 9 | W 8 | W 9 | W 6 | W 8 | W 9 | W 9 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 86 | 284 | 865 | 4068 | 2805 | 1641 | 562 | 319 | 103 | 66 | 60 | 165 | 555 | 493 | 635 | 1215 | 1798 | 1162 | 399 | 180 | 127 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-on | cross-on | on | cross-on | cross-on | cross | cross-off | cross-off |
High Tide | 10:19AM2.95m | 10:42PM2.89m | 11:18AM2.76m | 11:53PM2.61m | 12:40PM2.65m | 1:30AM2.47m | 2:18PM2.72m | 3:09AM2.55m | 3:39PM3.00m | 4:20AM2.77m | 4:39PM3.34m | 5:13AM3.02m | 5:27PM3.64m | ||||||||
Low Tide | 4:17PM0.73m | 4:47AM0.81m | 5:22PM0.97m | 5:58AM1.05m | 7:02PM1.11m | 7:40AM1.13m | 8:53PM0.99m | 9:13AM0.98m | 10:09PM0.69m | 10:16AM0.72m | 11:03PM0.38m | 11:05AM0.45m | 11:47PM0.12m | ||||||||
 |  |  |  | |  |  | | | | | | | | | | | | |  |  | |
 | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | 8:21 | — | — | 8:19 | — | — | 8:15 | — | — | 8:14 | — | — | 8:10 | — | — | 8:08 | — | — | 8:06 | — |
mm | — | 5 | 4 | 2 | 1 | — | — | — | — | — | 1 | 4 | — | 1 | 5 | 1 | 2 | — | — | 7 | 10 |
Temp °C | 16 | 14 | 15 | 15 | 15 | 14 | 15 | 15 | 17 | 19 | 20 | 16 | 14 | 15 | 13 | 13 | 14 | 14 | 14 | 15 | 15 |
Feels °C | 13 | 9 | 10 | 7 | 7 | 8 | 12 | 11 | 14 | 13 | 15 | 14 | 9 | 8 | 6 | 5 | 7 | 7 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | W 7 | NW 10 | N 10 | — | — | — | W 10 | W 10 | WNW 9 | W 8 | W 9 | — | — | — | — | — | — | — | WNW 10 | WNW 9 | — |
| kJ | 86 | 4 | 2 | — | — | — | 562 | 319 | 103 | 66 | 60 | — | — | — | — | — | — | — | 399 | 180 | — |
Swell 2 Height (m) Direction Period (s) | NNW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 3 | WSW 8 | W 10 | W 12 | W 12 | WNW 12 | — | — | S 4 | S 4 | S 4 | W 6 | W 8 | W 9 | W 9 | WNW 9 | WNW 10 | WNW 10 | — | — | W 8 |
| kJ | 4 | 284 | 865 | 4068 | 2805 | 1641 | — | — | 9 | 28 | 38 | 165 | 555 | 493 | 635 | 1215 | 1798 | 1162 | — | — | 127 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 266 | 249 | 553 | 727 | 266 | 23 | 29 | 19 | 64 | 53 | 413 | 55 | 648 | 292 | 727 | 720 | 261 | 51 | 29 | 3 |
Best forecast wave conditions in Sligo | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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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 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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