Surf Forecasts:
Ersary beach (Barra) surf forecast from 11 Aug 2026:
- Best quality surf: Sunday 16 Aug, 7AM (local time) - 3.5ft (1.0m), 7s period, W swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 7AM (local time) - 5ft (1.5m), 10s period, SW swell with 478 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 7AM (local time) - 3.5ft (1.0m), 7s 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 (Aug 16) at 7AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.4m 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 1.5m 10s and forecast to arrive on Thursday (Aug 13) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 10s period and expected on Wednesday (Aug 12) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 16th Aug) | 3.5ft (1.0m) 7s |
| Best Surf | 7AM (Sun 16th Aug) | 3.5ft (1.0m) 7s |
| Most Powerful | 7AM (Thu 13th Aug) | 5ft (1.5m) 10s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Alright, listen up. For the next couple of weeks on Barra, it’s looking lean. That exposed west-facing beach is getting hammered by wind or starved of swell. A proper tough run.
Don't even bother from Tuesday the 11th through to Friday the 15th. Tiny, weak, and windy. Total junk.
The only flicker of hope comes on Sunday the 16th. The morning will see a small pulse of 3-foot swell from the west, but it’s short-period at 7 seconds and energy is weak. The wind, however, will be light and offshore from the southeast. That means clean, glassy conditions. It won't be big, just a few soft little crumbly waves. The afternoon drops to 2-foot, but that offshore breeze sticks around, so it’ll be clean for a log.
Monday the 17th is more of the same tiny, clean stuff. Tuesday the 18th is a write-off with near gale-force winds. Then from Wednesday the 19th, the swell picks up to 5 or 6 feet, but the wind swings onshore from the west or southwest. It’s going to be lumpy, choppy, and blown out, even if the wave energy gets strong. That’s more of a kitesurfing session.
Friday the 21st brings the biggest groundswell of the period, pushing 6-7 feet from the west-southwest with a 11-second interval. The energy is very strong. But a near-gale from the south-southeast at 34 mph will destroy any quality. Forget it.
So your best bet, and it’s a slim one, is Sunday the 16th. Small, weak, but with that light offshore wind, it’ll be the cleanest wave you’ll see in this whole outlook. Grab the biggest board you’ve got.
The water is about 58°F, which is normal for the time of year, so a good 4/3 wetsuit is fine.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 18°C on Wed afternoon, min 14°C on Tue morning). Winds decreasing (strong winds from the SSE on Tue night, light winds from the S by Wed night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri afternoon. Very mild (max 14°C on Fri morning, min 13°C on Fri night). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Sat night). | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 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) | W 7 | W 7 | WSW 11 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 10 | WSW 9 | WSW 8 | WSW 8 | W 8 | W 8 | W 7 | W 7 | W 7 | WSW 10 | WSW 8 | W 8 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 24 | 8 | 223 | 255 | 262 | 318 | 451 | 433 | 269 | 165 | 217 | 318 | 373 | 223 | 155 | 76 | 32 | 31 | 53 | 33 | 46 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | off | off | cross-off | off | cross-off | cross-off |
High Tide | 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 | 9:14AM3.38m | 9:35PM3.45m | 9:51AM3.22m | 10:12PM3.20m | ||||||||
Low Tide | 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 | 3:16PM0.08m | 3:39AM0.26m | 3:53PM0.30m | ||||||||
 |  |  | |  |  | | |  | | |  | | | | | | |  | | | |
 | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | — | 9:21 | — | — | 9:19 | — | — | 9:15 | — | — | 9:14 | — | — | 9:10 | — | — | 9:08 | — | — | 9:06 |
mm | — | — | — | — | 2 | 1 | 1 | — | 1 | — | 1 | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 14 | 17 | 17 | 16 | 18 | 17 | 17 | 17 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 15 | 15 |
Feels °C | 8 | 10 | 10 | 10 | 14 | 15 | 16 | 16 | 13 | 10 | 9 | 10 | 11 | 11 | 12 | 11 | 11 | 12 | 12 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | WSW 11 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 10 | N 10 | N 11 | N 10 | WSW 8 | S 13 | NNW 9 | W 7 | W 7 | WSW 10 | WSW 8 | SW 8 | SW 8 |
| kJ | 24 | 8 | 223 | 255 | 262 | 318 | 451 | 260 | 269 | 2 | 2 | 2 | 257 | 4 | 17 | 76 | 32 | 31 | 53 | 62 | 46 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | N 8 | N 8 | — | — | — | — | — | — | — | — | — | N 10 | — | S 14 | NNW 8 | N 8 | SW 6 | SSW 8 | W 8 | NW 5 |
| kJ | 14 | 5 | 1 | — | — | — | — | — | — | — | — | — | 2 | — | 4 | 14 | 12 | 9 | 39 | 33 | 1 |
Swell 3 Height (m) Direction Period (s) | W 9 | SW 13 | — | — | — | — | — | — | N 10 | — | — | — | — | — | S 14 | W 8 | SW 7 | NW 6 | NW 6 | NNW 6 | N 8 |
| kJ | 2 | 7 | — | — | — | — | — | — | 2 | — | — | — | — | — | 4 | 1 | 8 | 9 | 1 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 5 | SSE 5 | SSW 10 | SSW 9 | SSE 4 | SSE 3 | SW 10 | — | WSW 9 | WSW 8 | WSW 8 | W 8 | W 8 | W 7 | — | — | — | — | — | SE 3 |
| kJ | 19 | 94 | 86 | 636 | 501 | 7 | 7 | 433 | — | 165 | 217 | 318 | 373 | 223 | 155 | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 130 | 172 | 130 | 195 | 67 | 64 | 67 | 67 | 135 | 235 | 235 | 266 | 623 | 235 | 67 | 0 | 64 | 148 | 64 | 64 | 64 |
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.
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