
Surf Forecasts:
Ersary beach (Barra) surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 1AM (local time) - 10ft (3.0m), 13s period, W swell with cross-shore winds.
- Most powerful swell: Tuesday 8 Sep, 1PM (local time) - 13ft (4.0m), 11s period, WNW swell with 3,241 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 1AM (local time) - 10ft (3.0m), 13s 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 Saturday (Sep 12) at 1AM. The primary swell is predicted to be 3.0m and 13s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Ersary beach (Barra) in the next 16 days are 4.0m 11s and forecast to arrive on Tuesday (Sep 08) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Thursday (Sep 10) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 12th Sep) | 10ft (3.0m) 13s |
| Best Surf | 1AM (Sat 12th Sep) | 10ft (3.0m) 13s |
| Most Powerful | 1PM (Tue 8th Sep) | 13ft (4.0m) 11s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on the cards for Ersary beach on Barra. To be honest, the next week and a half is mostly a write-off. We’ve got a heap of strong wind and messy conditions. The water temp is sitting at 58°, which is pretty much what you’d expect for this time of year, so no surprises there.
The first sniff of anything decent doesn’t show up until Sunday the 20th of September. Through the week before that, we’re looking at an awful lot of blown-out, lumpy slop. On Thursday the 18th, the swell is pushing 10ft but it’s cross-onshore and lumpy; that’s more of a kitesurfing mission than a paddle session, if you ask me.
So, the standout window starts on Sunday the 20th. That morning, we’ve got an 8ft swell from the west with a very long 12-second period, and the wind is just a slight air from the west, so it’s light cross-onshore with small ripples. The combined energy is big, at 3427. It’s a bit of a beast, but it’s still going to be lumpy from the previous days. The real gem is that afternoon: the swell drops a touch to 7ft from the west-southwest, still with that long 12-second period, and the wind goes glassy. The setup there looks excellent for experienced surfers. The break is exposed, but with that clean face, it’ll be a joy if you can handle the size. Be warned, it’s over 8ft, so this is strictly for the experts.
Then Monday the 21st looks very promising too. Morning brings an 8ft west-southwest swell with a 9-second period and clean offshore conditions from the east-northeast. The energy is moderate at 1340. That afternoon, the swell builds to 10ft from the west-southwest with a long 12-second period, and it’s clean with light east-northeast winds. That’s a big, powerful wave, and the forecast notes it might actually be too big for this break, but for those with the skills, it’ll be a proper session. Tuesday the 22nd follows up with solid 10ft west swell and a very long 14-second period, with clean offshore easterly winds. Again, that’s a heavy groundswell, best for experienced chargers. The break is exposed, so it’ll cop the full force. Through to Wednesday the 23rd, the swell drops back to a more manageable 7ft from the west with a long period, still clean.
Overall, the first real quality is on Sunday the 20th afternoon. The other strong days (Monday 21st to Wednesday 23rd) are all quality but the swell is big and powerful, so it’s not for everyone. There are no crowds to worry about at Ersary – it rarely gets busy, so you’ll have plenty of room to pick off the sets.
The long-range stuff looks promising, but it’s still a way off, so keep an eye on the wind.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Thu morning. Very mild (max 15°C on Thu afternoon, min 11°C on Tue night). Winds decreasing (near gales from the WNW on Tue morning, light winds from the WSW by Wed morning). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Fri night. Very mild (max 15°C on Sat morning, min 12°C on Fri night). Winds decreasing (near gales from the SSW on Sat morning, light winds from the NW by Sun morning). | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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 11 | WNW 11 | WNW 10 | W 9 | W 8 | W 7 | WSW 11 | SW 10 | WSW 10 | WSW 9 | WSW 10 | W 13 | W 13 | WSW 13 | WNW 12 | WNW 11 | W 10 | W 9 | SW 8 | WSW 11 | WSW 11 |
Wave Graph | |||||||||||||||||||||
3471 | 2688 | 913 | 220 | 157 | 70 | 13 | 0 | 1082 | 1001 | 880 | 2668 | 1659 | 3164 | 857 | 407 | 204 | 81 | 711 | 1035 | 1167 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-on | cross-on | cross-off | cross-off | cross | cross | cross-on |
High Tide | 5:07PM3.11m | 5:34AM3.08m | 5:55PM3.38m | 6:18AM3.31m | 6:37PM3.58m | 6:56AM3.46m | 7:16PM3.69m | 7:33AM3.53m | 7:52PM3.68m | 8:07AM3.52m | 8:26PM3.58m | 8:41AM3.43m | 9:00PM3.40m | ||||||||
Low Tide | 10:49AM0.63m | 11:21PM0.43m | 11:38AM0.33m | 00:06AM0.18m | 12:20PM0.09m | 00:46AM0.01m | 12:58PM-0.06m | 1:22AM-0.06m | 1:35PM-0.11m | 1:56AM-0.03m | 2:09PM-0.06m | 2:29AM0.09m | 2:43PM0.09m | 3:01AM0.28m | |||||||
6:43 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | |
— | 8:08 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — | — | 7:58 | — | — | 7:54 | — | — | 7:52 | — | |
mm | 2 | — | — | — | — | 1 | 3 | 1 | — | — | — | 3 | 2 | — | — | — | — | 3 | — | 2 | 6 |
Temp °C | 13 | 12 | 13 | 13 | 13 | 14 | 13 | 15 | 13 | 13 | 13 | 13 | 15 | 15 | 13 | 12 | 13 | 15 | 15 | 15 | 13 |
Feels °C | 3 | 2 | 5 | 10 | 8 | 8 | 3 | 8 | 6 | 6 | 6 | 7 | 8 | 9 | 9 | 11 | 9 | 8 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | — | — | WSW 10 | W 9 | W 8 | W 7 | WSW 11 | SE 6 | — | — | W 12 | W 13 | W 13 | W 13 | WNW 12 | WNW 11 | W 10 | W 9 | NW 12 | NNW 12 | NNW 11 |
— | — | 328 | 220 | 157 | 70 | 13 | 36 | — | — | 239 | 2668 | 1659 | 826 | 857 | 407 | 204 | 81 | 24 | 26 | 12 | |
Swell 2 Height (m) Direction Period (s) | — | — | N 10 | NNW 8 | NNW 8 | N 7 | — | — | — | — | W 17 | — | — | — | SW 9 | SW 9 | SW 9 | NW 13 | NNW 12 | NW 12 | — |
— | — | 2 | 70 | 19 | 4 | — | — | — | — | 22 | — | — | — | 294 | 179 | 152 | 60 | 28 | 23 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 10 | SW 12 | — | — | — | — | W 16 | — | — | — | SSE 4 | — | NW 14 | NNW 12 | — | — | — |
— | — | — | — | 4 | 6 | — | — | — | — | 45 | — | — | — | 2 | — | 29 | 30 | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 11 | WNW 11 | WNW 10 | — | SW 3 | SSW 4 | SSW 7 | SW 10 | WSW 10 | WSW 9 | WSW 10 | SW 9 | S 7 | WSW 13 | — | — | SSW 2 | SSW 8 | SW 8 | WSW 11 | WSW 11 |
3471 | 2688 | 913 | — | 1 | 32 | 620 | 1422 | 1082 | 1001 | 880 | 206 | 511 | 3164 | — | — | 1 | 290 | 711 | 1035 | 1167 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 647 | 1508 | 326 | 69 | 147 | 195 | 220 | 235 | 318 | 543 | 557 | 147 | 276 | 194 | 326 | 69 | 64 | 190 | 147 | 147 | 252 |
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.










