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Surf Forecasts:
Mullaghmore surf forecast from 1 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 1AM (local time) - 10ft (3.0m), 11s period, W swell with 2,319 kJ wave energy.
Best Forecast Surf Conditions for Mullaghmore this week:
The most powerful waves expected at Mullaghmore in the next 16 days are 3.0m 11s and forecast to arrive on Tuesday (Sep 08) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Monday (Sep 07) at 10PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 8th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Mullaghmore over the next 16 days.
The Lowdown
Alright, let’s talk in feet and miles per hour, mates.
It’s a tough stretch out at Mullaghmore. For the next week and a half, the wind is junk – mostly side-shore or side-onshore – and the swell is choppy and uninviting. There’s nothing to get excited about. The water is 62°F, a touch warmer than usual for this time of year.
The first real chance doesn’t come until Monday, September 14th. That morning, we’ve got a 5ft swell from the west with a 9-second period, light offshore wind from the east-southeast, and clean conditions. The swell energy is moderate (401). But the afternoon of the 14th is the real standout – a 8ft west swell, 11-second period, light offshore-to-side-offshore wind from the southeast, and the energy jumps to 1656. That’s moderate-to-strong.
Mullaghmore is a reef, and it’s sheltered, so it needs that northwest swell direction. The west swell is a bit off that, but 8ft waves with that period on a reef are going to be powerful and mean. The crowds are listed as “sometimes,” so you might have company, but not a full-on lineup. The water is still that warmer 62°F. That Monday afternoon session is the one to circle on the calendar.
Tuesday, September 15th morning is still solid – 7ft west-northwest swell, 10-second period, clean cross-off wind, but it’s a step down in energy (850). The afternoon gets smaller and more ordinary. After that, it’s back to the doldrums. The 14th is your only real shot. It’s a long wait, but that Monday afternoon is the gem.
Rusty out.
Short Range ForecastHeavy rain (total 22mm), heaviest during Thu afternoon. Very mild (max 18°C on Wed afternoon, min 13°C on Thu night). Winds increasing (light winds from the S on Tue night, strong winds from the WSW by Thu night). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Fri morning. Very mild (max 19°C on Sun afternoon, min 12°C on Sat night). Winds decreasing (strong winds from the W on Fri morning, light winds from the S by Sat night). | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 10 | W 10 | W 11 | W 11 | WNW 12 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 9 | W 6 | W 8 | W 9 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 212 | 182 | 127 | 57 | 40 | 127 | 86 | 426 | 666 | 1555 | 1789 | 1455 | 521 | 295 | 113 | 39 | 39 | 108 | 234 | 247 | 2319 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | off | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | off | cross-off | cross-off | cross-off | on | cross-on | cross-off |
High Tide | 9:10PM3.42m | 9:34AM3.12m | 9:51PM3.18m | 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 | |||||||||
Low Tide | 2:49PM0.33m | 3:17AM0.33m | 3:29PM0.50m | 3:57AM0.55m | 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 | ||||||||
 | |  | |  | | |  | | | | |  | |  |  | | | | | | |
 | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — |
 | — | 8:25 | — | — | 8:23 | — | — | 8:21 | — | — | 8:19 | — | — | 8:15 | — | — | 8:14 | — | — | 8:10 | — |
mm | 1 | 3 | 1 | 3 | 1 | 1 | 1 | 7 | 4 | 1 | 1 | 1 | — | — | — | — | — | 4 | — | — | 4 |
Temp °C | 17 | 16 | 15 | 15 | 18 | 17 | 17 | 15 | 14 | 14 | 14 | 14 | 15 | 16 | 15 | 18 | 19 | 18 | 15 | 15 | 15 |
Feels °C | 13 | 14 | 14 | 14 | 16 | 13 | 12 | 11 | 11 | 6 | 6 | 9 | 11 | 13 | 13 | 13 | 15 | 16 | 15 | 14 | 9 |
Swell 1 Height (m) Direction Period (s) | — | W 8 | W 8 | W 8 | W 7 | NNW 11 | W 7 | NW 10 | N 10 | — | — | — | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 9 | W 9 | W 8 | W 9 | — |
| kJ | — | 182 | 127 | 57 | 40 | 11 | 86 | 4 | 2 | — | — | — | 521 | 295 | 113 | 39 | 39 | 41 | 234 | 247 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | NW 9 | — | NNW 11 | — | — | — | — | — | — | — | — | W 8 | NW 9 | — | W 13 | — | — |
| kJ | — | — | — | — | 3 | — | 11 | — | — | — | — | — | — | — | — | 32 | 19 | — | 13 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | — | — | SE 2 | SW 3 | W 7 | — | W 10 | W 10 | W 11 | W 11 | WNW 12 | — | — | SSE 3 | S 4 | S 4 | W 6 | SW 4 | SSW 4 | W 11 |
| kJ | 212 | — | — | 1 | 2 | 127 | — | 426 | 666 | 1555 | 1789 | 1455 | — | — | 2 | 13 | 22 | 108 | 12 | 28 | 2319 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 29 | 3 | 9 | 55 | 55 | 88 | 55 | 142 | 292 | 317 | 266 | 55 | 55 | 3 | 64 | 100 | 55 | 19 | 17 | 29 |
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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