
Surf Forecasts:
Ersary beach (Barra) surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 4AM (local time) - 5ft (1.5m), 11s period, W swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 4PM (local time) - 11ft (3.5m), 12s period, W swell with 3,865 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 4AM (local time) - 5ft (1.5m), 11s period with W swell.
Best Forecast Surf Conditions for Ersary beach (Barra) this week:
The surf forecast for Ersary beach (Barra) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 4AM. The primary swell is predicted to be 1.5m and 11s period with a secondary swell of 1.3m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ersary beach (Barra) in the next 16 days are 3.5m 12s and forecast to arrive on Thursday (Sep 17) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Saturday (Sep 12) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 13th Sep) | 5ft (1.5m) 11s |
| Best Surf | 4AM (Sun 13th Sep) | 5ft (1.5m) 11s |
| Most Powerful | 4PM (Thu 17th Sep) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
G’day, Rusty here with a look at what’s comin’ up for the next couple weeks at Ersary beach (Barra). Gotta be straight with ya – this is a tough read. There’s a proper stretch of rough, windy, and messy conditions that’ll have you wonderin’ if the ocean’s forgot how to peel.
The water’s sittin’ at about 57°, which is pretty normal for this time of year. Nothin’ wild there.
The first real chance for a wave comes up on Sunday the 13th, but it’s only barely worth mentionin’. The swell drops off fast, around 4 ft from the WNW, with a clean enough cross-shore breeze in the mornin’. It’s a short period swell at 11 seconds, so the energy’s on the weaker side (609 combined energy). I’d call it a borderline paddle – just to get the salt in your hair.
Saturday the 14th onwards turns ugly. Rain, strong cross and cross-on winds, and lumpy, blown-out surf. Swell’s often above 5 ft, but the wind wrecks any chance of a decent wave. Kite surfers might get a kick out of the wind and the beach setup, but for a paddlin’ surfer, it’s a write-off. That stretch runs all the way through to the 20th.
Now, here’s the standout. Monday the 21st of September – mark it. For the first time, Ersary Beach turns on. The winds go glassy in the mornin’ and light offshore in the arvo. Swell comes in around 8 ft to 8 ft from the W and WSW at 12 seconds – proper groundswell. That’s got some grunt, with combined energy over 1500, enough for a solid punch. It’s a bigger day though, so this is really for the experienced crew. The long period will make for cleaner, more powerful sets, but expect longer waits between them. Should be a quality session, and with no crowds to speak of, you’ll be the only one out.
The next few days after that, Tuesday the 22nd and Wednesday the 23rd (22 and 23 September), pump even bigger – 12 ft to 13 ft groundswell from WSW with clean offshore and cross-off winds. The combined energy soars past 3500 – that’s strong wave energy, no doubt. But I gotta warn ya, these are flagged as too big for the spot. For experts only, and even then you’d want to know the beach well and be ready for a proper hold-down. If you’re not comfortable in heavy, powerful surf, sit this one out.
After that, from Thursday the 24th onwards, the wind swings back onshore and the quality drops into marginal or poor territory again. A few small windows show up, but nothin’ you’d set an alarm for.
Bottom line: The best on offer is Monday 21st of September – glassy morning, clean 8 ft groundswell, and you’ll have the place to yourself. If you’re an expert, Tuesday and Wednesday are huge but risky. Otherwise, a pretty quiet spell for Ersary Beach, with a solid gap of rough days from the 14th to the 20th. Forecasts can always change, but right now, pick your day wisely.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Fri night. Very mild (max 15°C on Fri night, min 12°C on Fri night). Winds decreasing (near gales from the S on Fri night, calm by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 20mm), heaviest during Wed afternoon. Very mild (max 15°C on Mon afternoon, min 11°C on Tue night). Mainly near gales. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | WSW 10 | WSW 9 | W 13 | W 12 | W 12 | WNW 12 | WNW 11 | WNW 10 | WNW 9 | NW 13 | SW 8 | SW 10 | WSW 10 | W 9 | W 12 | W 10 | WSW 10 | WSW 10 | W 11 | W 12 | W 12 |
Wave Graph | |||||||||||||||||||||
821 | 778 | 1461 | 1448 | 1334 | 730 | 392 | 245 | 64 | 51 | 392 | 524 | 846 | 650 | 1786 | 962 | 874 | 1569 | 3090 | 3865 | 3035 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | on | on | on | cross | cross | cross-off | cross | cross | cross-on | cross-on | on | on | cross | cross | on | cross-on | on | on |
High Tide | 7:16PM3.69m | 7:33AM3.53m | 7:52PM3.68m | 8:07AM3.52m | 8:26PM3.58m | 8:41AM3.43m | 9:00PM3.40m | 9:13AM3.27m | 9:33PM3.16m | 9:47AM3.06m | 10:07PM2.89m | 10:23AM2.82m | 10:45PM2.62m | ||||||||
Low Tide | 12:58PM-0.06m | 1:22AM-0.06m | 1:35PM-0.11m | 1:56AM-0.03m | 2:09PM-0.06m | 2:29AM0.09m | 2:43PM0.09m | 3:01AM0.28m | 3:17PM0.32m | 3:33AM0.52m | 3:51PM0.59m | 4:07AM0.78m | 4:29PM0.89m | ||||||||
6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:01 | — | — | 7:03 | — | — | |
— | 8:00 | — | — | 7:58 | — | — | 7:54 | — | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | |
mm | — | — | 14 | — | — | — | — | — | 2 | 3 | 5 | 2 | 2 | — | — | — | 6 | 2 | — | — | — |
Temp °C | 13 | 13 | 15 | 13 | 13 | 13 | 13 | 13 | 15 | 14 | 15 | 14 | 13 | 12 | 12 | 12 | 14 | 14 | 12 | 12 | 12 |
Feels °C | 7 | 8 | 7 | 8 | 9 | 11 | 10 | 9 | 9 | 9 | 8 | 7 | 7 | 5 | 4 | 7 | 4 | 6 | 2 | 2 | 3 |
Swell 1 Height (m) Direction Period (s) | — | W 12 | W 13 | SW 10 | W 12 | WNW 12 | WNW 11 | WNW 10 | WNW 9 | NNW 12 | NW 13 | SW 10 | WSW 10 | WSW 10 | — | W 11 | N 9 | NNW 8 | — | — | — |
— | 75 | 1461 | 1111 | 1334 | 730 | 392 | 245 | 64 | 51 | 42 | 524 | 544 | 378 | — | 657 | 13 | 7 | — | — | — | |
Swell 2 Height (m) Direction Period (s) | — | W 16 | — | WSW 11 | SW 10 | SW 9 | SW 9 | SW 9 | NW 13 | NW 13 | NNW 12 | NNW 12 | NNW 11 | — | — | — | NNW 9 | — | — | — | — |
— | 5 | — | 47 | 653 | 314 | 217 | 183 | 61 | 44 | 28 | 26 | 23 | — | — | — | 25 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | WSW 11 | WSW 11 | — | NW 14 | NNW 13 | — | N 12 | NW 12 | — | — | — | — | — | — | — | — | — |
— | — | — | — | 78 | 240 | — | 31 | 17 | — | 3 | 6 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 10 | WSW 9 | SSW 6 | W 12 | — | — | — | SSW 2 | SSW 9 | SW 8 | SW 8 | — | WSW 10 | W 9 | W 12 | W 10 | WSW 10 | WSW 10 | W 11 | W 12 | W 12 |
821 | 778 | 318 | 1448 | — | — | — | 1 | 301 | 403 | 392 | — | 846 | 650 | 1786 | 962 | 874 | 1569 | 3090 | 3865 | 3035 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 209 | 184 | 209 | 209 | 221 | 69 | 64 | 67 | 195 | 147 | 130 | 340 | 642 | 1071 | 642 | 235 | 245 | 984 | 983 | 963 | 557 |
Best forecast wave conditions in Outer Hebrides | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Ersary beach (Barra) Surf forecast
The above surf forecast table for Ersary beach (Barra) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ersary beach (Barra) can be found by selecting the local surf guide option on the grey menu. Our Ersary beach (Barra) 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 (Ersary beach (Barra)) 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 Ersary beach (Barra) 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 Outer Hebrides? If you are looking for accommodation near Ersary beach (Barra), camping, hotels and holiday cottages in Outer Hebrides, consider staying in Tiree which is 69 km (43 miles) away. Other places in and around Outer Hebrides where you can find information about places to rent, and car hire include Portree which is 86 km (53 miles) away and Mallaig, 99 km (61 miles) away.










