Surf Forecasts:
Ersary beach (Barra) surf forecast from 10 Aug 2026:
- Best quality surf: Thursday 13 Aug, 4AM (local time) - 4.5ft (1.4m), 11s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 1AM (local time) - 5ft (1.5m), 11s period, SW swell with 524 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 1PM (local time) - 2.5ft (0.8m), 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 0.8m 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 1.5m 11s and forecast to arrive on Thursday (Aug 13) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Monday (Aug 17) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Mon 10th Aug) | 2.5ft (0.8m) 10s |
| Best Surf | 4AM (Thu 13th Aug) | 4.5ft (1.4m) 11s |
| Most Powerful | 1AM (Thu 13th Aug) | 5ft (1.5m) 11s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Alright, folks. Rusty here.
Let’s look at Ersary beach (Barra). This is a consistent beginner-friendly beach break, exposed to the north-west. The water temp is about 58°F, which is normal for this time of year. The forecast is a slow burn.
Monday the 10th kicks off with a small, clean 3ft swell from the NNW, 10-second period, and a light NNE breeze in the morning. Combined swell energy is 258 (moderate). The afternoon holds a similar 3ft swell, still clean. It’s tiny, but it’s surfable.
Tuesday the 11th drops off hard to 2ft and 1ft swells with strong southerly winds. Not worth it.
Wednesday the 12th and Thursday the 13th bring a rise to 4ft and 5ft from the SW, but fresh to moderate southerly winds rip it apart. The surf is messy and poor. Thursday sees combined energy at 385 (moderate), but the wind ruins it.
From Friday the 14th right through to Saturday the 22nd, it’s the same story: poor conditions with onshore and cross-onshore winds, choppy and lumpy. The one bright spot is Monday the 17th afternoon, where a 5ft WSW swell arrives with light winds, giving clean conditions. Combined energy is 354 (moderate). That’s your best wave, but it’s a short window.
After that, it’s back to strong winds, onshore slop, and messy seas. The surf quality is poor all the way to the end of the forecast. There’s a long stretch of days with no decent surf.
The only real standout is that Monday the 17th afternoon session. It’s not huge, but it’s clean and the wind is light. For a beginner spot, that’s a nice little window. Everything else is a washout.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Very mild (max 18°C on Wed night, min 12°C on Mon morning). Winds increasing (calm on Mon morning, strong winds from the SSE by Tue morning). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu morning. Very mild (max 17°C on Thu morning, min 13°C on Fri afternoon). Mainly fresh winds. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | NNW 10 | NNW 10 | W 7 | W 7 | W 7 | WSW 11 | SW 10 | SW 10 | SW 11 | SW 10 | SW 10 | SW 10 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | W 7 | W 6 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 160 | 109 | 37 | 24 | 8 | 223 | 341 | 208 | 524 | 385 | 363 | 290 | 273 | 157 | 207 | 232 | 168 | 149 | 81 | 52 | 20 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-on | cross-on | on | on | on | on | cross | cross | on |
High Tide | 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 | 9:14AM3.38m | 9:35PM3.45m | ||||||||
Low Tide | 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 | 3:16PM0.08m | 3:39AM0.26m | |||||||
 |  |  | | | | |  |  | |  |  | | | | | | | | | | |
 | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:15 | — | — | 9:14 | — | — | 9:10 | — | — | 9:08 |
mm | — | — | — | — | — | — | — | 1 | 11 | 3 | 3 | — | — | — | — | — | — | — | — | 5 | — |
Temp °C | 12 | 13 | 14 | 14 | 17 | 17 | 16 | 17 | 18 | 17 | 17 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 15 |
Feels °C | 10 | 12 | 9 | 7 | 10 | 11 | 11 | 13 | 17 | 14 | 13 | 12 | 10 | 10 | 9 | 9 | 9 | 10 | 9 | 8 | 12 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | W 8 | W 7 | W 7 | W 7 | WSW 11 | SW 10 | SW 10 | SW 11 | SW 10 | SW 10 | SW 10 | N 10 | N 9 | WSW 8 | WSW 8 | W 8 | W 8 | W 7 | NNW 9 | W 6 |
| kJ | 160 | 55 | 37 | 24 | 8 | 223 | 341 | 208 | 524 | 385 | 363 | 290 | 2 | 2 | 111 | 232 | 168 | 149 | 81 | 16 | 20 |
Swell 2 Height (m) Direction Period (s) | W 8 | NNW 10 | NNW 9 | NNW 8 | N 8 | N 8 | — | — | WSW 12 | — | — | N 10 | — | — | — | N 10 | N 10 | N 8 | NNW 8 | WSW 8 | W 10 |
| kJ | 98 | 109 | 26 | 14 | 5 | 1 | — | — | 54 | — | — | 2 | — | — | — | 2 | 2 | 6 | 14 | 6 | 8 |
Swell 3 Height (m) Direction Period (s) | S 12 | W 11 | WSW 10 | W 9 | SW 13 | N 8 | — | — | — | — | — | — | — | — | — | — | S 13 | S 14 | SW 8 | W 11 | N 9 |
| kJ | 3 | 2 | 10 | 2 | 7 | 1 | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 3 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SSW 10 | SE 4 | SSE 4 | SSE 4 | — | WSW 9 | WSW 8 | WSW 8 | — | — | — | — | W 6 | SW 4 |
| kJ | — | — | — | 20 | 98 | 74 | 61 | 522 | 8 | 13 | 16 | — | 273 | 157 | 207 | — | — | — | — | 52 | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 66 | 0 | 0 | 130 | 159 | 135 | 184 | 67 | 67 | 67 | 67 | 266 | 235 | 235 | 596 | 581 | 235 | 184 | 184 | 184 | 184 |
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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