Surf Forecasts:
Ersary beach (Barra) surf forecast from 29 Aug 2026:
- Best quality surf: Friday 4 Sep, 4AM (local time) - 10ft (3.0m), 11s period, WSW swell with cross-onshore winds.
- Most powerful swell: Friday 4 Sep, 4PM (local time) - 16ft (5.0m), 13s period, W swell with 7,765 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 1PM (local time) - 2ft (0.6m), 10s period with SW 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 30) at 1PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.3m and 6s. 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 5.0m 13s and forecast to arrive on Friday (Sep 04) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Wednesday (Sep 02) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sun 30th Aug) | 2ft (0.6m) 10s |
| Best Surf | 4AM (Fri 4th Sep) | 10ft (3.0m) 11s |
| Most Powerful | 4PM (Fri 4th Sep) | 16ft (5.0m) 13s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s brewing for Ersary Beach on Barra.
Right off the bat, it’s a quiet start. The next few days are a bit of a write-off, with a real lack of quality. We’ve got a long stretch from now until the end of the month where the conditions are just grim – choppy, windy, or just plain weak. You’re looking at at least a week of nothing worth getting wet for. The water temp is sitting at 59°F which is about average for this time of year, so at least you won't freeze if you're stubborn.
The first real glimmer of hope comes on Sunday the 30th of August. It’s not a classic, but the morning shows a light offshore breeze from the ESE at 6 mph with a tiny 1ft SW swell. The energy is weak (58), but the wind is clean. By the afternoon, the swell picks up a touch to 3ft from the SW, with a period of 10 seconds, and the cross-off wind keeps things tidy. The combined energy climbs to 129 – still moderate, but it’s the first surfable wave we’ve seen. It’s nothing special, but if you’re desperate, that Sunday afternoon session is your best bet early on.
Monday the 31st brings a pulse of swell, but it’s a mess. The wind goes onshore and the quality drops out. Tuesday the 1st of September is a write-off with near gale force winds.
Then, we get a real standout. Saturday the 5th of September. The morning is looking excellent. We’ve got a 8ft swell from the west, with a nice 11-second period, which is a proper groundswell. The combined energy is a strong 1615, so there’s plenty of power. The best part? A light offshore wind from the SE at 6 mph. This is for experienced surfers only – that size is too big for the average punter. The longer period will mean longer lulls, but the waves will be clean and powerful. This is the pick of the forecast.
The rest of the second week falls away again. The 8th of September sees a huge 12ft swell from the NW on Tuesday afternoon, but with near gale force onshore winds, it’ll be a washing machine. Thursday the 10th sees a small clean-up, but the swell is tiny. By the 12th, it’s flat.
So, the takeaway is clear: hold out for Saturday the 5th of September. That morning session at Ersary Beach is the only real standout. The rest is a whole lot of waiting.
- Rusty
Short Range ForecastMostly dry. Very mild (max 15°C on Fri afternoon, min 12°C on Mon morning). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Wed afternoon. Very mild (max 15°C on Mon night, min 12°C on Tue afternoon). Winds decreasing (near gales from the SW on Mon night, light winds from the W by Tue night). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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 | N 6 | N 4 | N 4 | NNW 7 | SW 10 | SW 10 | SW 9 | W 7 | WSW 10 | WSW 7 | W 8 | W 8 | NW 10 | NNW 9 | NNW 9 | SW 8 | WSW 10 | WSW 10 | WSW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 26 | 31 | 18 | 14 | 15 | 36 | 120 | 95 | 231 | 433 | 329 | 332 | 408 | 296 | 103 | 45 | 649 | 1563 | 1514 | 1841 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross | cross-off | off | cross-off | on | on | cross | cross | on | on | on | off | off | cross-on | on | on | cross-on |
High Tide | 7:25PM3.41m | 7:39AM3.33m | 7:55PM3.48m | 8:10AM3.38m | 8:27PM3.50m | 8:42AM3.38m | 9:00PM3.44m | 9:16AM3.31m | 9:36PM3.31m | 9:54AM3.17m | 10:16PM3.11m | 10:38AM2.98m | 11:06PM2.87m | |||||||
Low Tide | 1:30AM0.18m | 1:41PM0.09m | 2:00AM0.10m | 2:12PM0.06m | 2:32AM0.10m | 2:45PM0.10m | 3:05AM0.18m | 3:20PM0.22m | 3:41AM0.33m | 3:59PM0.41m | 4:22AM0.55m | 4:46PM0.65m | ||||||||
 |  |  | | | | | |  | |  | | | | |  | |  | | | |
 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — |
 | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | 9 | 1 | 4 | — | 8 |
Temp °C | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 13 | 14 | 15 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 |
Feels °C | 12 | 12 | 10 | 10 | 10 | 14 | 13 | 14 | 8 | 9 | 6 | 3 | 7 | 9 | 6 | 12 | 7 | 4 | 5 | 6 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | NW 6 | NNW 7 | SW 10 | SW 10 | SW 9 | SW 8 | — | NW 6 | — | NW 11 | NW 10 | NNW 9 | NNW 9 | NNW 11 | N 11 | N 10 | N 10 |
| kJ | 4 | 4 | 1 | 2 | 15 | 36 | 120 | 95 | 35 | — | 10 | — | 29 | 296 | 103 | 45 | 23 | 9 | 8 | 2 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | — | W 7 | NW 6 | NNW 7 | NNW 6 | NNW 6 | SW 11 | — | — | — | — | W 8 | SW 8 | NW 12 | NW 11 | — | — | — |
| kJ | 3 | 3 | — | 1 | 1 | 15 | 8 | 4 | 56 | — | — | — | — | 149 | 28 | 6 | 5 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | S 11 | W 10 | W 9 | WSW 8 | NW 5 | — | — | — | — | — | — | — | W 8 | SW 16 | SW 16 | — | — | — |
| kJ | — | — | 3 | 2 | 2 | 7 | 1 | — | — | — | — | — | — | — | 28 | 10 | 10 | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 5 | N 6 | N 4 | N 4 | NNE 4 | — | — | — | W 7 | WSW 10 | WSW 7 | W 8 | W 8 | — | S 4 | S 7 | SW 8 | WSW 10 | WSW 10 | WSW 11 |
| kJ | 26 | 31 | 18 | 14 | 10 | — | — | — | 231 | 433 | 329 | 332 | 408 | — | 16 | 427 | 649 | 1563 | 1514 | 1841 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 301 | 184 | 128 | 128 | 148 | 130 | 0 | 69 | 325 | 326 | 184 | 252 | 559 | 64 | 68 | 235 | 220 | 1110 | 791 | 148 |
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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