Surf Forecasts:
Ersary beach (Barra) surf forecast from 4 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 1PM (local time) - 16ft (5.0m), 13s period, W swell with 7,864 kJ wave energy.
Best Forecast Surf Conditions for Ersary beach (Barra) this week:
The most powerful waves expected at Ersary beach (Barra) in the next 16 days are 5.0m 13s and forecast to arrive on Tuesday (Sep 08) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Sunday (Sep 06) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Tue 8th 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. Gotta be straight with you – if you’re looking for a proper surf session at Ersary beach on Barra over the next 16 days, you’re gonna be fighting a losing battle. The wind just won’t play ball.
We kick off on Friday the 4th of September with a solid 13ft swell pushing in from the WSW, but that near gale (34 mph) onshore wind is gonna have it absolutely blown out and messy. Not worth even looking at.
Saturday the 5th is a bit smaller at 8ft in the morning and 6ft in the afternoon, still from the WSW/W, but that moderate breeze is still cross-onshore, keeping things choppy and poor.
Sunday the 6th, the swell just vanishes – drops to 0.3ft. Not surfable.
Monday the 7th, we get a bump back up to 10ft and 12ft from the SW, but it’s accompanied by a strong breeze cross-onshore. The surf is messy and blown out. The same pattern repeats Tuesday the 8th with 15ft from the W and a near gale onshore.
Wednesday the 9th, swell drops to 6ft with a moderate breeze cross-onshore, but still poor quality. We limp through the rest of the first week and into the second with similar conditions: solid swell sizes (8ft to 12ft) but always with onshore or cross-onshore winds from the WSW, SW, or NW. Lots of strong breezes and near gales. No clean windows at all.
There is a flicker of something on Sunday the 13th of September afternoon – swell around 8ft from the WSW – but it’s only given a marginal call because of lumpy cross-chop from a fresh breeze.
After that, from Monday the 14th right through to Saturday the 19th of September, we’re seeing swell drop from 12ft down to just 2ft, but it’s all accompanied by strong to fresh cross-onshore winds, or when it goes offshore (S on the 18th), the swell is tiny at 2ft with a weak combined energy (86). The wave energy for the whole period is moderate at best (1231 to 6015 early on) but it's totally wasted by the wind. Short period swells (8-10 seconds) dominate, so the shape isn't gonna make up for the conditions.
Honestly, there’s nothing here to recommend. The consistent onshore wind is the killer. For the entire 16-day forecast, I can’t point you to a single standout. Ersary is exposed to the NW, and the wind is just coming from all the wrong directions. Given the strong winds and poor surf quality, this setup is honestly looking more interesting for kite surfing than paddle surfing right now. Surf forecasts can change, so keep an eye out, but for now, leave the boards in the van.
Rusty.
Short Range ForecastHeavy rain (total 29mm), heaviest during Sat night. Very mild (max 16°C on Sun morning, min 13°C on Fri afternoon). Winds decreasing (near gales from the WSW on Thu night, light winds from the SSW by Sat afternoon). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sun night. Very mild (max 16°C on Sun night, min 12°C on Mon afternoon). Winds decreasing (near gales from the W on Tue morning, moderate winds from the WSW by Wed morning). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | WSW 12 | WSW 12 | W 12 | W 10 | WSW 10 | W 9 | SW 13 | NW 8 | SW 10 | SW 10 | SW 10 | WSW 11 | W 12 | W 12 | W 10 | W 9 | W 8 | W 13 | SW 8 | WSW 9 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5156 | 4924 | 3298 | 1231 | 681 | 219 | 7 | 2 | 1531 | 1570 | 2523 | 3378 | 5627 | 6015 | 1869 | 573 | 316 | 3 | 330 | 559 | 885 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross-on | on | on | on | on | cross-on | cross-off | cross-on | on | on |
High Tide | 11:35AM2.76m | 00:13AM2.62m | 12:55PM2.58m | 1:48AM2.49m | 2:38PM2.59m | 3:29AM2.58m | 4:05PM2.81m | 4:41AM2.82m | 5:07PM3.11m | 5:34AM3.08m | 5:55PM3.38m | 6:18AM3.31m | 6:37PM3.58m | ||||||||
Low Tide | 5:14AM0.81m | 5:49PM0.90m | 6:28AM1.04m | 7:22PM1.07m | 8:12AM1.10m | 9:09PM0.99m | 9:45AM0.92m | 10:26PM0.73m | 10:49AM0.63m | 11:21PM0.43m | 11:38AM0.33m | 00:06AM0.18m | 12:20PM0.09m | 00:46AM0.01m | |||||||
 |  |  | |  |  |  | |  | | |  |  | |  | | |  | | |  | |
 | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:47 | — | — | 6:48 | — | — |
 | — | 8:19 | — | — | 8:16 | — | — | 8:14 | — | — | 8:10 | — | — | 8:08 | — | — | 8:06 | — | — | 8:02 | — |
mm | — | — | — | — | — | 20 | 4 | 2 | 3 | — | 3 | 4 | 2 | — | — | — | — | 6 | 1 | — | — |
Temp °C | 14 | 14 | 13 | 13 | 14 | 15 | 16 | 16 | 16 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 |
Feels °C | 4 | 4 | 3 | 8 | 10 | 8 | 7 | 7 | 8 | 4 | 5 | 5 | 1 | 2 | 4 | 8 | 10 | 9 | 10 | 8 | 6 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 10 | WSW 10 | W 9 | S 13 | NW 8 | SSE 6 | SW 14 | — | — | — | — | N 6 | W 9 | W 8 | W 13 | SE 5 | N 7 | — |
| kJ | — | — | — | 1231 | 461 | 219 | 4 | 2 | 34 | 401 | — | — | — | — | 1 | 573 | 316 | 3 | 8 | 1 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SSW 14 | SW 14 | SW 13 | — | SW 18 | — | — | — | — | — | — | NW 9 | NW 8 | W 13 | N 7 | N 7 | — |
| kJ | — | — | — | — | 18 | 7 | 7 | — | 12 | — | — | — | — | — | — | 328 | 120 | 3 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 13 | — | — | — | — | — | — | — | — | — | — | W 13 | — | — | — |
| kJ | — | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 12 | WSW 12 | W 12 | — | WSW 10 | S 5 | SSW 8 | S 8 | SW 10 | SW 10 | SW 10 | WSW 11 | W 12 | W 12 | W 10 | — | SSW 3 | SSW 7 | SW 8 | WSW 9 | W 10 |
| kJ | 5156 | 4924 | 3298 | — | 681 | 85 | 913 | 1331 | 1531 | 1570 | 2523 | 3378 | 5627 | 6015 | 1869 | — | 5 | 444 | 330 | 559 | 885 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 501 | 906 | 557 | 209 | 184 | 149 | 210 | 220 | 252 | 194 | 209 | 194 | 983 | 983 | 796 | 557 | 313 | 149 | 128 | 149 | 290 |
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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