Surf Forecasts:
Ersary beach (Barra) surf forecast from 23 Aug 2026:
- Best quality surf: Monday 24 Aug, 4PM (local time) - 5ft (1.5m), 11s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 4AM (local time) - 5ft (1.5m), 12s period, W swell with 604 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 4PM (local time) - 5ft (1.5m), 11s 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 Monday (Aug 24) at 4PM. The primary swell is predicted to be 1.5m and 11s period with a secondary swell of 0.1m and 14s. 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 1.5m 12s and forecast to arrive on Monday (Aug 24) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 25) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Mon 24th Aug) | 5ft (1.5m) 11s |
| Best Surf | 4PM (Mon 24th Aug) | 5ft (1.5m) 11s |
| Most Powerful | 4AM (Mon 24th Aug) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good look at what Ersary beach on Barra has in store for us over the next couple of weeks.
The overall picture is a bit of a mixed bag for the first week or so. There’s some swell around, but the conditions don’t always line up for a proper surf. We start off on Sunday the 23rd with nothing to write home about – weak WNW swell at 3ft and a cross-on breeze making it a write-off.
Monday the 24th is where it first gets interesting. We’ve got a clean 5ft W groundswell rolling in with a period of 11 seconds, and a cross-off wind. The energy is moderate (515 on the Monday morning, building to 536 in the afternoon). This is a decent window for a beginner-friendly wave – the size is manageable, the consistency is good, and the wind is keeping things tidy. This is probably the best bet in the first week.
Things get messy again from Tuesday the 25th onwards. The swell drops off, the wind turns onshore or picks up too strong, and a lot of the days are graded as poor. There’s a brief moment on Thursday the 27th morning with a clean 2ft W swell and light offshore wind, but it’s small and ordinary. The following days are mostly a washout with strong cross-onshore winds and tiny surf until we hit the end of the month. It’s a real quiet spell.
Now, hold onto your board for the start of September. On Saturday the 5th, the forecast shows a serious pulse of long-period WSW groundswell at 8ft. The wind is light offshore from the ESE in the morning. The wave energy is enormous (2113 in the morning). This is big, powerful stuff – definitely for experienced surfers only. It’s a standout for the whole period, but it’s also a fair way out, so keep an eye on it.
The next day, Sunday the 6th, gets even bigger – 13ft to 15ft from the W with a very long 11-12 second period. The energy figures are off the charts (4479 and 5384). However, the model itself says the swell is predicted to be too big for this break. At that size, a beach break like Ersary will be a washing machine, likely more interesting for the kite surfers than paddle surfers. The rest of the second week is ruled out by strong winds and messy conditions.
So to wrap it up: the pick of the early days is Monday 24th August for a clean, manageable wave. The true standout, if you have the skills and it holds, is the morning of Saturday 5th September for a powerful, clean, expert-only session. Just remember, that one is a long way off and the forecasts can wobble.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed morning. Very mild (max 17°C on Tue night, min 13°C on Sun afternoon). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Fri afternoon. Warm (max 20°C on Wed night, min 13°C on Thu night). Winds increasing (light winds from the NNE on Thu morning, strong winds from the NNW by Fri afternoon). | |||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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) | WNW 7 | WNW 12 | W 11 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | W 10 | W 9 | W 9 | W 8 | W 7 | NNW 6 | NNW 7 | NNW 8 | NW 8 | NW 8 |
Wave Graph | ||||||||||||||||||||
54 | 470 | 515 | 525 | 521 | 281 | 188 | 96 | 44 | 23 | 68 | 81 | 39 | 21 | 10 | 39 | 202 | 208 | 192 | 142 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | off | off | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 4:12PM2.45m | 4:43AM2.45m | 5:08PM2.66m | 5:29AM2.66m | 5:49PM2.89m | 6:05AM2.87m | 6:23PM3.10m | 6:37AM3.06m | 6:54PM3.27m | 7:08AM3.22m | 7:25PM3.41m | 7:39AM3.33m | 7:55PM3.48m | |||||||
Low Tide | 10:30PM1.17m | 10:48AM1.06m | 11:18PM0.95m | 11:31AM0.82m | 11:55PM0.72m | 12:06PM0.58m | 00:28AM0.50m | 12:39PM0.36m | 00:59AM0.31m | 1:10PM0.20m | 1:30AM0.18m | 1:41PM0.09m | 2:00AM0.10m | |||||||
— | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | |
8:51 | — | — | 8:49 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:37 | — | — | 8:35 | — | |
mm | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | 2 | 2 | — | — | 2 |
Temp °C | 13 | 13 | 14 | 15 | 16 | 15 | 15 | 17 | 15 | 18 | 20 | 15 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 13 |
Feels °C | 11 | 11 | 10 | 13 | 14 | 10 | 13 | 13 | 11 | 15 | 16 | 14 | 14 | 11 | 8 | 8 | 8 | 9 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | WNW 12 | W 11 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | W 10 | W 9 | W 9 | W 8 | W 7 | W 7 | — | — | — | NW 10 |
54 | 470 | 515 | 525 | 521 | 281 | 188 | 96 | 44 | 23 | 68 | 81 | 39 | 21 | 10 | 9 | — | — | — | 4 | |
Swell 2 Height (m) Direction Period (s) | WNW 11 | SSW 14 | SSW 14 | SW 14 | SW 9 | — | S 5 | WNW 8 | WNW 7 | WNW 7 | SW 7 | SSE 4 | SSE 4 | — | S 9 | — | — | — | — | NW 8 |
22 | 18 | 20 | 8 | 3 | — | 17 | 6 | 11 | 5 | 9 | 4 | 2 | — | 2 | — | — | — | — | 3 | |
Swell 3 Height (m) Direction Period (s) | WSW 8 | WSW 8 | SSW 10 | SW 9 | — | — | W 8 | SSE 4 | SSE 5 | W 11 | SSE 5 | NW 6 | S 12 | S 12 | S 12 | — | — | — | — | — |
7 | 6 | 9 | 3 | — | — | 1 | 2 | 5 | 9 | 2 | 2 | 3 | 3 | 3 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | S 3 | S 4 | SSE 4 | SSE 4 | — | ENE 3 | ENE 2 | ENE 4 | E 3 | — | N 6 | NNE 3 | N 4 | NNW 6 | NNW 7 | NNW 8 | NW 8 | NW 8 |
— | — | 3 | 4 | 5 | 19 | — | 4 | 1 | 10 | 2 | — | 1 | 3 | 8 | 39 | 202 | 208 | 192 | 142 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 67 | 64 | 64 | 0 | 0 | 68 | 0 | 66 | 66 | 128 | 0 | 0 | 66 | 263 | 295 | 301 | 545 | 128 | 213 | 128 |
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.











