Surf Forecasts:
Ersary beach (Barra) surf forecast from 21 Aug 2026:
- Best quality surf: Monday 24 Aug, 4AM (local time) - 5ft (1.6m), 12s period, W swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 1AM (local time) - 8ft (2.5m), 8s period, SW swell with 831 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 1AM (local time) - 4.5ft (1.3m), 10s period with WNW 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 24) at 1AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.6m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ersary beach (Barra) in the next 16 days are 2.5m 8s and forecast to arrive on Saturday (Aug 29) 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 1.4m 6s period and expected on Wednesday (Aug 26) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 24th Aug) | 4.5ft (1.3m) 10s |
| Best Surf | 4AM (Mon 24th Aug) | 5ft (1.6m) 12s |
| Most Powerful | 1AM (Sat 29th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be real. The next couple weeks look pretty bleak for the most part, with a long run of poor conditions and small, messy surf. But there is one decent window if you’re willing to wait.
The week starts off with nothing. The 21st and 22nd are write-offs – small, lumpy slop with a fresh cross-onshore breeze. Not worth the effort. Same story on Sunday the 23rd, just choppy and weak.
There’s a brief spark on Monday the 24th. The swell picks up to about 5 feet, but it’s coming from the west with a 11-second period. It’s clean with a light cross-offshore breeze, but the tide is questionable. It’s surfable, but it’s marginal at best. Energy is moderate, around 513, so there’s some juice, but it doesn’t quite line up.
Midweek is mostly poor. Tuesday the 25th has better offshore winds, but the swell drops off. By Wednesday and Thursday, we’re back to tiny, weak waves. You’d be scratching for anything.
Things get properly messy again from Friday the 28th onward. The wind swings around, bringing rain and cross-shore chop. There’s some size, but it’s poor quality.
The standout, if you can call it that, is Ersary beach (Barra) on Monday the 31st of August. That’s your day. The morning looks best. We’ve got a 4-foot swell from the southwest with a 9-second period, and a light offshore breeze out of the ESE. The energy reading is 296, which is solid. It should be clean with some proper waves on offer. The afternoon is similar with a touch lighter wind. This is your best bet for a decent session. It’s not huge, but it’s clean and has some push.
After that, the door slams shut. From September 1st through the 5th, it’s all onshore wind, lumps, and deteriorating conditions. The swell stays small and the wind gets strong, gusting up to 31 mph on the 4th. This setup looks more interesting for kite surfing than paddle surfing. It’s a long, flat, and messy run to finish. The water temp is around 58.5°, which is about normal for this time of year.
Keep it on the shelf, folks. That Monday the 31st is the one.
Short Range ForecastMostly dry. Very mild (max 15°C on Sat afternoon, min 12°C on Fri afternoon). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Very mild (max 18°C on Wed afternoon, min 14°C on Tue morning). Winds increasing (light winds from the SE on Mon afternoon, near gales from the SE by Thu morning). | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 5 | SW 8 | SW 10 | SW 9 | SW 9 | WNW 6 | WNW 7 | WNW 10 | W 11 | W 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | SW 8 | WSW 10 | WSW 8 | W 8 | W 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 33 | 18 | 24 | 21 | 20 | 35 | 66 | 363 | 585 | 340 | 282 | 197 | 127 | 88 | 44 | 15 | 112 | 284 | 181 | 88 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross-on | cross | cross-off | cross-off | cross-off | off | cross-off | off | off | off | off | off | cross-off | cross-off | cross |
High Tide | 1:51AM2.25m | 2:43PM2.33m | 3:33AM2.28m | 4:12PM2.45m | 4:43AM2.45m | 5:08PM2.66m | 5:29AM2.66m | 5:49PM2.89m | 6:05AM2.87m | 6:23PM3.10m | 6:37AM3.06m | 6:54PM3.27m | ||||||||
Low Tide | 7:33PM1.34m | 8:14AM1.37m | 9:16PM1.34m | 9:47AM1.27m | 10:30PM1.17m | 10:48AM1.06m | 11:18PM0.95m | 11:31AM0.82m | 11:55PM0.72m | 12:06PM0.58m | 00:28AM0.50m | 12:39PM0.36m | 00:59AM0.31m | |||||||
 |  |  | | |  | |  | | | | | |  | | |  |  | | | |
 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — |
 | 8:55 | — | — | 8:53 | — | — | 8:51 | — | — | 8:49 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — |
Temp °C | 13 | 13 | 14 | 15 | 15 | 13 | 13 | 14 | 14 | 15 | 17 | 15 | 17 | 17 | 15 | 18 | 18 | 15 | 14 | 13 |
Feels °C | 8 | 9 | 11 | 11 | 12 | 11 | 10 | 12 | 10 | 12 | 13 | 10 | 14 | 13 | 10 | 15 | 16 | 11 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | SW 8 | SW 10 | SW 9 | SW 9 | WNW 6 | WNW 7 | WNW 10 | W 11 | W 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | SW 8 | SSE 6 | WSW 8 | W 8 | W 7 |
| kJ | 8 | 18 | 24 | 21 | 20 | 35 | 66 | 363 | 585 | 340 | 282 | 197 | 127 | 88 | 44 | 15 | 49 | 284 | 181 | 88 |
Swell 2 Height (m) Direction Period (s) | W 7 | W 7 | W 6 | W 6 | W 9 | W 8 | WNW 11 | WNW 12 | SW 14 | SW 14 | SW 14 | SW 13 | S 13 | S 13 | WNW 8 | W 8 | N 8 | SSE 5 | N 8 | N 8 |
| kJ | 4 | 4 | 3 | 3 | 7 | 12 | 22 | 121 | 8 | 8 | 8 | 7 | 3 | 3 | 6 | 5 | 1 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | SW 14 | S 13 | SW 13 | SW 14 | SSW 14 | SW 9 | SW 8 | SSW 14 | SW 14 | SW 9 | — | — | SW 13 | S 13 | S 13 | N 9 | S 12 | S 12 | N 8 | — |
| kJ | 7 | 3 | 7 | 7 | 21 | 20 | 10 | 18 | 8 | 3 | — | — | 7 | 3 | 3 | 1 | 3 | 3 | 1 | — |
Wind waves Height (m) Direction Period (s) | NNW 5 | NW 5 | NW 5 | NW 4 | WNW 5 | — | — | — | SSE 3 | S 4 | SSE 4 | SSE 5 | SSE 5 | SSE 4 | SE 4 | SSE 6 | WSW 10 | — | — | — |
| kJ | 33 | 18 | 7 | 4 | 15 | — | — | — | 3 | 5 | 10 | 40 | 48 | 7 | 29 | 115 | 112 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 304 | 295 | 235 | 245 | 271 | 235 | 235 | 67 | 0 | 64 | 64 | 0 | 68 | 0 | 0 | 66 | 128 | 128 | 0 | 66 |
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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