
Surf Forecasts:
Ersary beach (Barra) surf forecast from 9 Aug 2026:
- Best quality surf: Monday 10 Aug, 1PM (local time) - 3ft (0.9m), 10s period, NNW swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 7AM (local time) - 4.5ft (1.4m), 10s period, SW swell with 428 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 1PM (local time) - 3ft (0.9m), 10s period with NNW 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 Monday (Aug 10) at 1PM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.8m and 8s. 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 1.4m 10s and forecast to arrive on Thursday (Aug 13) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 10s period and expected on Wednesday (Aug 12) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Mon 10th Aug) | 3ft (0.9m) 10s |
| Best Surf | 1PM (Mon 10th Aug) | 3ft (0.9m) 10s |
| Most Powerful | 7AM (Thu 13th Aug) | 4.5ft (1.4m) 10s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's talk about the next couple of weeks at Ersary beach on Barra. It’s a bit of a mixed bag, so let’s get into it.
Overall, we’re looking at a period where the swell is often there, but the wind is going to be our biggest enemy. The water temperature is sitting at 58°, which is about average for this time of year. This place is dead consistent, exposed to the west, and usually handles a good NW groundswell, but the conditions are going to have to line up for it to be worth the paddle.
The first few days are pretty grim, honestly. Sunday the 9th is a write-off with a 15 mph cross-on breeze and choppy surf. Monday the 10th drops in size but stays messy. Tuesday the 11th is tiny. We’re looking at a gap of a few days with nothing worth getting wet for.
The first real glimmer of hope comes on the morning of Thursday, the 13th. The wind swings around to a light S cross-off, and we’ve got a clean 5ft SW swell at 10 seconds. It’s not going to be giant, but the conditions will finally be clean. It’s the standout of the first week, but we’re not talking about a classic. The energy is moderate, reading 370, but the clean conditions are the big positive here.
After that, things go downhill again. The wind goes back onshore Friday and through the weekend, and the swell drops off. Monday the 17th has a pulse of 5ft, but it’s only a 5-second period, so it’ll be gutless and messy. Forget it.
Now, for the long-range. The second week is a different story in size but not in wind. The 18th of August brings a bigger 7ft WSW swell, but it’s cross-onshore and choppy. We’re dealing with a lot of onshore wind through this whole period. The energy is strong, hitting 658, but the conditions aren't there.
The big one looks like Sunday the 23rd into Monday the 24th. The 23rd afternoon sees a jump to 6ft with a longer 11-second period, and the energy is strong at 725. But again, the wind is cross-onshore. Then Monday the 24th looks the most promising of the whole run in terms of pure size: a solid 7ft WSW groundswell at 10 seconds, with energy readings up at 985. That’s strong, powerful stuff. But the wind is forecast to be straight onshore. It’s going to be a big, lumpy, close-out machine unless that wind shifts. That's a bit over the 8ft mark for experts only. It’s a promising sign for the long-range, but I wouldn’t be booking my flights just yet. We’re talking about a week and a half out, so treat that one with caution.
So, the pick of the fortnight is the Thursday morning session. It’s the only time we get decent swell and clean conditions. The rest is a waiting game.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 17°C on Tue night, min 12°C on Sun night). Winds increasing (calm on Mon afternoon, strong winds from the SSE by Tue morning). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Thu night. Very mild (max 18°C on Wed afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the S on Wed morning, light winds from the W by Thu night). | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 9 | W 9 | W 8 | NNW 10 | NNW 10 | N 9 | WSW 7 | W 7 | WSW 11 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 9 | WSW 9 | WSW 8 | SW 8 | SW 7 | NW 7 | NW 7 |
Wave Graph | |||||||||||||||||||||
612 | 407 | 230 | 160 | 109 | 40 | 16 | 8 | 223 | 425 | 268 | 199 | 370 | 348 | 258 | 151 | 99 | 53 | 27 | 91 | 23 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 4:04PM2.81m | 4:42AM2.85m | 5:11PM3.08m | 5:43AM3.09m | 6:06PM3.35m | 6:32AM3.30m | 6:54PM3.58m | 7:17AM3.44m | 7:37PM3.71m | 7:58AM3.50m | 8:18PM3.73m | 8:37AM3.48m | 8:57PM3.63m | ||||||||
Low Tide | 10:25PM0.73m | 10:53AM0.66m | 11:27PM0.46m | 11:48AM0.39m | 00:19AM0.21m | 12:35PM0.15m | 1:04AM0.02m | 1:18PM-0.02m | 1:46AM-0.07m | 1:59PM-0.09m | 2:25AM-0.05m | 2:38PM-0.06m | 3:03AM0.06m | ||||||||
5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | |
— | — | 9:25 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:15 | — | — | 9:14 | — | — | 9:10 | |
mm | — | — | — | — | — | — | — | — | — | 2 | 2 | 3 | — | 1 | 4 | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 12 | 12 | 13 | 14 | 16 | 17 | 16 | 18 | 18 | 16 | 17 | 18 | 14 | 14 | 13 | 13 | 13 | 14 |
Feels °C | 8 | 8 | 9 | 9 | 11 | 9 | 6 | 9 | 11 | 10 | 15 | 16 | 15 | 15 | 16 | 10 | 10 | 9 | 9 | 9 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | SSW 7 | W 8 | NNW 10 | W 8 | W 7 | WSW 7 | W 7 | WSW 11 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 9 | WSW 9 | WSW 8 | SW 8 | SW 7 | SW 7 | NW 7 |
612 | 26 | 230 | 160 | 55 | 37 | 16 | 8 | 223 | 425 | 268 | 199 | 370 | 348 | 258 | 151 | 99 | 53 | 27 | 26 | 23 | |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 7 | NW 12 | W 8 | NNW 10 | N 9 | NNW 8 | N 8 | N 8 | — | — | — | SSE 4 | — | SSE 3 | N 10 | N 9 | — | WNW 8 | SW 9 | SW 7 |
33 | 35 | 5 | 98 | 109 | 40 | 14 | 6 | 1 | — | — | — | 1 | — | 1 | 2 | 2 | — | 6 | 3 | 12 | |
Swell 3 Height (m) Direction Period (s) | — | N 8 | N 8 | S 12 | W 11 | WSW 10 | W 9 | W 9 | — | — | — | — | — | — | — | — | — | — | SW 10 | S 13 | SW 9 |
— | 1 | 1 | 3 | 2 | 10 | 2 | 6 | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 3 | |
Wind waves Height (m) Direction Period (s) | — | W 9 | — | — | — | — | S 4 | SSE 6 | SSE 5 | SSE 5 | SSW 10 | SW 9 | — | S 4 | — | NNW 3 | NNW 3 | NW 4 | NW 5 | NW 7 | NNW 4 |
— | 407 | — | — | — | — | 36 | 126 | 74 | 64 | 522 | 349 | — | 9 | — | 3 | 2 | 21 | 22 | 91 | 20 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 147 | 983 | 194 | 71 | 0 | 0 | 130 | 209 | 130 | 195 | 67 | 67 | 0 | 67 | 64 | 67 | 235 | 235 | 778 | 128 | 128 |
Best forecast wave conditions in Outer Hebrides | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











