Surf Forecasts:
Ersary beach (Barra) surf forecast from 31 Jul 2026:
- Best quality surf: Sunday 2 Aug, 4PM (local time) - 2.5ft (0.8m), 8s period, WNW swell with glassy winds.
- Most powerful swell: Sunday 2 Aug, 1AM (local time) - 3.5ft (1.1m), 8s period, W swell with 153 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 4PM (local time) - 2.5ft (0.8m), 8s 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 Sunday (Aug 02) at 4PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.3m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ersary beach (Barra) in the next 16 days are 1.1m 8s and forecast to arrive on Sunday (Aug 02) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 10s period and expected on Monday (Aug 03) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Sun 2nd Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 4PM (Sun 2nd Aug) | 2.5ft (0.8m) 8s |
| Most Powerful | 1AM (Sun 2nd Aug) | 3.5ft (1.1m) 8s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let’s have a look at what’s on offer for Ersary beach (Barra) for the next couple of weeks.
First up, the water temperature is sitting at 58°F, which is bang on average for this time of year. Nothing unusual there.
Now, I’m not gonna lie to you, the immediate outlook is a bit of a struggle. We’re starting off with a long, quiet period. From now right through until the 9th of August, there’s just nothing worth paddling out for. The swell is tiny, the wind is mostly onshore or cross-onshore, and the energy is weak. You’d be wasting your time. There’s a little tease on Sunday afternoon, the 2nd of August, with glassy conditions and a 3ft swell from the WNW, but the combined energy is only 90 – weak as dishwater. It’s surfable, but very ordinary.
Then we hit a bit of a gap, and things get interesting on the 10th of August. That Monday morning brings a solid 8ft swell from the west, with a period of 9 seconds and a combined energy of 961 – that’s strong, and it’s building. The wind is a gentle cross-onshore, so it’s a bit choppy, but the size is there. The real standout, though, is the Monday afternoon. We’ve got a 8ft west swell, still 9 seconds, and the energy jumps to 1048 – very strong. The wind swings light and cross-shore, which will clean it up a treat. This is a big, powerful swell. For the experienced crew, this is the one. It’s a proper groundswell, and at over 8ft, it’s strictly for experts. The swell direction is from the west, and the optimum for this spot is from the NW, so it’s not a perfect match, but the size and the improving wind make it the best on offer by a long shot.
After that, the 11th of August sees the swell drop back, and the wind goes bananas with a strong breeze, making a mess of things. The rest of the second week is a write-off – tiny surf and strong, messy winds.
So, to sum it up: the first week is a total washout. The only real window, and the clear standout, is Monday the 10th of August. The afternoon session looks the best bet for those who know what they’re doing. It’s a long way off, so keep an eye on the forecasts, but that’s the one to pencil in.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri night. Very mild (max 14°C on Sat afternoon, min 13°C on Fri afternoon). Winds decreasing (fresh winds from the W on Fri night, calm by Sun afternoon). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Very mild (max 14°C on Mon afternoon, min 12°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 7 | W 6 | W 6 | W 6 | W 8 | WNW 8 | WNW 8 | NNW 9 | N 9 | NNW 9 | NNW 9 | NNW 8 | N 8 | WSW 11 | WSW 10 | WSW 11 | N 4 | WSW 10 | WSW 10 | WSW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 89 | 83 | 106 | 73 | 153 | 107 | 64 | 28 | 45 | 28 | 16 | 14 | 6 | 11 | 10 | 11 | 19 | 19 | 19 | 18 |
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 | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | glassy | cross | cross-on | on | cross-on |
High Tide | 8:24PM3.32m | 8:39AM3.19m | 8:56PM3.31m | 9:11AM3.17m | 9:29PM3.26m | 9:45AM3.12m | 10:04PM3.17m | 10:23AM3.03m | 10:44PM3.04m | 11:07AM2.90m | 11:32PM2.88m | 12:01PM2.76m | 00:33AM2.72m | |||||||
Low Tide | 2:29AM0.30m | 2:40PM0.26m | 3:01AM0.30m | 3:13PM0.29m | 3:34AM0.35m | 3:48PM0.37m | 4:10AM0.44m | 4:26PM0.51m | 4:52AM0.59m | 5:12PM0.68m | 5:42AM0.76m | 6:11PM0.86m | ||||||||
 |  | | |  | |  |  |  | |  | | | |  | | | | | | |
 | — | — | 5:26 | — | — | 5:28 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — |
 | — | 9:45 | — | — | 9:43 | — | — | 9:40 | — | — | 9:38 | — | — | 9:37 | — | — | 9:35 | — | — | 9:31 |
mm | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 13 | 13 | 12 | 13 | 13 |
Feels °C | 7 | 8 | 8 | 10 | 8 | 11 | 12 | 11 | 10 | 12 | 12 | 11 | 13 | 12 | 10 | 12 | 8 | 9 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | NNW 5 | WSW 11 | SW 10 | SW 9 | W 8 | WNW 8 | WNW 8 | WNW 7 | SSW 10 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 7 | WSW 10 | N 4 | WSW 11 | WSW 10 | WSW 10 | WSW 10 |
| kJ | 3 | 12 | 15 | 39 | 153 | 107 | 64 | 27 | 117 | 96 | 46 | 26 | 13 | 5 | 10 | 1 | 11 | 19 | 19 | 18 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 7 | N 7 | NNW 9 | SW 9 | SW 8 | NNW 9 | NNW 9 | N 9 | NNW 9 | NNW 9 | NNW 8 | WNW 7 | WNW 7 | WNW 6 | WNW 6 | S 7 | NW 5 | NW 5 | N 3 |
| kJ | 1 | 1 | 4 | 17 | 27 | 18 | 15 | 28 | 45 | 28 | 16 | 14 | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | N 10 | — | NNW 9 | N 9 | SW 8 | WSW 10 | WNW 6 | NW 6 | WNW 6 | NW 6 | N 8 | WSW 11 | SSW 7 | WSW 11 | S 13 | S 13 | S 13 | NW 5 |
| kJ | — | — | 2 | — | 28 | 14 | 11 | 9 | 16 | 9 | 3 | 1 | 6 | 11 | 5 | 11 | 3 | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | W 7 | W 6 | W 6 | W 6 | W 8 | — | — | — | — | ESE 2 | E 3 | E 3 | E 3 | N 6 | N 4 | — | N 4 | N 4 | NNW 4 | — |
| kJ | 89 | 83 | 106 | 73 | 74 | — | — | — | — | 1 | 3 | 3 | 1 | 6 | 3 | — | 19 | 8 | 3 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 290 | 235 | 558 | 572 | 128 | 64 | 0 | 0 | 0 | 128 | 128 | 128 | 128 | 235 | 254 | 148 | 254 | 235 | 607 | 235 |
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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