Surf Forecasts:
Ersary beach (Barra) surf forecast from 28 Aug 2026:
- Best quality surf: Sunday 30 Aug, 1PM (local time) - 2.5ft (0.7m), 9s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 1AM (local time) - 8ft (2.5m), 11s period, WSW swell with 1,594 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 1PM (local time) - 2.5ft (0.7m), 9s 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 0.7m and 9s period with a secondary swell of 0.4m 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 2.5m 11s and forecast to arrive on Friday (Sep 04) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Thursday (Sep 03) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sun 30th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 1PM (Sun 30th Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 1AM (Fri 4th Sep) | 8ft (2.5m) 11s |
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 on offer for Ersary Beach on Barra. Gotta be straight with you, this is a tough one.
The next two weeks are a real mixed bag, but mostly a poor one. The water temp is sitting at 59°, which is about average for this time of year, so no surprises there. The issue is almost everything coming in brings a cross or cross-onshore wind, messing up what little swell we get.
To start, Thursday the 27th sees a tiny 2ft W swell with a 9-second period, but a north cross breeze puts a chop on it – not worth the paddle. Friday the 28th is worse, with a 2ft NNW bump and strong onshore winds. That trend of small, wind-affected slop continues right through Saturday and Sunday the 30th. There is a brief flicker of hope on Sunday afternoon – a 3ft SW swell creeps in with a 10-second period and light, clean cross-offshore winds. The combined energy is moderate (122), so you might find a surfable little wave, but it’s ordinary at best. A score of 1 out of 10 tells you all you need to know.
Monday the 31st builds in some size – 4ft to 5ft from the WSW – but the wind swings onshore and the period drops, creating chop and poor conditions. Tuesday the 1st of September gets a big 7ft W swell with strong energy (715), but it’s blown out and lumpy. That’s kite-surfing territory, not for a paddle surfer. Wednesday the 2nd offers a moment of pure glass: WNW wind is dead calm, there's a 3ft swell. The combined energy is weak (90), so it’s not going to be epic, but it'll be clean for a beginner.
Things go downhill hard after that. A massive 10ft+ groundswell hits on the 4th and 5th with powerful energy readings in the thousands, but the wind is a howling near-gale onshore. That’s dangerous and unsurfable. The size stays above 7ft through to the 6th and 7th, but the cross-onshore wind never lets up. By the 8th, the swell drops right down, and the final few days are just tiny, weak, and wind-affected leftovers.
All in, this is a grim outlook. The only real standout is that clear, glassy morning on Wednesday the 2nd of September. If you can get out for that 3ft swell, you’ll have clean, gentle conditions perfect for a beginner. Everything else is either too small, too windy, or a dangerous, blown-out mess. A proper blank run, this one.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Thu afternoon, min 13°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Mon night. Very mild (max 14°C on Sun afternoon, min 11°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the WSW by Mon night). | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 9 | W 8 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | N 7 | NNW 7 | SW 10 | SW 9 | WSW 11 | WSW 10 | WSW 8 | W 9 | WSW 9 | WSW 8 | WSW 7 | WSW 7 | NNW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 38 | 21 | 21 | 24 | 31 | 28 | 28 | 24 | 17 | 113 | 79 | 275 | 439 | 613 | 715 | 322 | 140 | 62 | 20 | 23 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross-off | glassy | cross-on | cross | on | cross-on | cross-on | cross-on | glassy | cross-off | cross-off |
High Tide | 6:54PM3.27m | 7:08AM3.22m | 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 | |||||||
Low Tide | 00:59AM0.31m | 1:10PM0.20m | 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 | ||||||||
 |  |  | |  |  | | | | |  | | |  | | | | | |  | |
 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — |
 | 8:40 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:27 | — | — | 8:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 19 | — | — | — | — | — | 13 |
Temp °C | 17 | 17 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 15 |
Feels °C | 15 | 13 | 10 | 10 | 13 | 11 | 10 | 9 | 13 | 13 | 14 | 9 | 9 | 7 | 6 | 5 | 6 | 9 | 6 | 10 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 7 | W 7 | W 7 | NNW 6 | NNW 6 | N 7 | SW 10 | SW 10 | SW 9 | SW 11 | N 6 | — | W 9 | WSW 9 | WSW 8 | WSW 7 | WSW 7 | NNW 11 |
| kJ | 38 | 21 | 10 | 4 | 4 | 28 | 28 | 24 | 47 | 113 | 79 | 140 | 1 | — | 715 | 322 | 140 | 62 | 20 | 23 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 12 | S 12 | W 7 | W 10 | WNW 6 | NNW 7 | NW 6 | NNW 5 | — | — | — | — | — | NNW 8 | NNW 7 | NNW 7 | SW 16 |
| kJ | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 4 | 17 | 9 | 5 | — | — | — | — | — | 70 | 21 | 9 | 10 |
Swell 3 Height (m) Direction Period (s) | N 9 | — | S 12 | — | — | — | — | W 9 | WSW 8 | — | — | — | — | — | — | — | — | NW 13 | WNW 7 | — |
| kJ | 2 | — | 3 | — | — | — | — | 2 | 7 | — | — | — | — | — | — | — | — | 7 | 10 | — |
Wind waves Height (m) Direction Period (s) | E 4 | N 3 | NNW 4 | NNW 5 | NNW 6 | NNE 3 | NE 3 | ENE 4 | — | — | — | WSW 11 | WSW 10 | WSW 8 | — | NNW 6 | — | — | S 4 | SSW 7 |
| kJ | 3 | 6 | 21 | 24 | 31 | 1 | 2 | 1 | — | — | — | 275 | 439 | 613 | — | 34 | — | — | 54 | 517 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 66 | 316 | 295 | 301 | 184 | 128 | 128 | 128 | 64 | 0 | 0 | 220 | 184 | 291 | 557 | 502 | 200 | 0 | 149 | 135 |
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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