Surf Forecasts:
Ersary beach (Barra) surf forecast from 14 Sep 2026:
- Best quality surf: Friday 18 Sep, 4AM (local time) - 16ft (5.0m), 14s period, W swell with cross-onshore winds.
- Most powerful swell: Thursday 17 Sep, 4PM (local time) - 16ft (5.0m), 15s period, W swell with 10,351 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 10AM (local time) - 7ft (2.1m), 11s period with WSW 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 Wednesday (Sep 16) at 10AM. The primary swell is predicted to be 2.1m and 11s period with a secondary swell of 0.1m 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 5.0m 15s and forecast to arrive on Thursday (Sep 17) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 9s period and expected on Monday (Sep 21) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Wed 16th Sep) | 7ft (2.1m) 11s |
| Best Surf | 4AM (Fri 18th Sep) | 16ft (5.0m) 14s |
| Most Powerful | 4PM (Thu 17th Sep) | 16ft (5.0m) 15s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a look at what's cooking for Ersary Beach on Barra. It's going to be a bit of a mixed bag over the next couple of weeks, so let's get into it.
Right off the bat, things are looking pretty grim. Monday the 14th is a write-off with a strong cross-shore wind making a mess of things. We're looking at a bit of a lull until we get a proper window.
Wednesday the 16th is where you want to be. First light is the call. The wind is set to go glassy with the swell coming in at a clean 7ft from the WSW. The combined energy is sitting at 963 (moderate), and with that period around 11 seconds, you're looking at proper, well-shaped waves. This is the standout of the entire forecast. The water temp is 57°, which is about average for this time of year. Just keep in mind that the swell is over 5ft, so it's a bit more for the experienced crew.
After that, we get a rough stretch. From Thursday the 17th through to Saturday the 19th, we're getting hammered by some serious, stormy swell. The energy jumps up into the thousands, but the wind is howling, making it pretty much unsurfable unless you're into a fight with the elements.
We get a bit of a tease on Sunday the 20th. The morning sees a big 10ft W swell, and the wind is only a moderate cross-shore, but the combined energy is massive at 2300 (strong). The catch? The swell is predicted to be too big for this break, so it's only for the experts. The afternoon cleans up a bit, but the tide and swell combo is marginal.
The following week is full of near-misses and messy conditions. Monday the 23rd morning looks interesting with a 12ft SW swell and light offshore winds from the ESE. The energy is strong at 1834, and it's clean. But again, that 12ft is solid and too big for beginners. The same goes for Wednesday afternoon.
After that, it's a long stretch of strong cross-shore winds and chop right through to the end of the month. The swell drops off and the quality goes with it. A couple of mornings on the 28th and 29th show some clean offshore or cross-off winds, but the swell is small and weak, with energy readings below 100.
So, to sum it up: if you can get out on Wednesday the 16th, you're in for a treat. That's the one. The rest of the period is either blown out, too big, or too small. It's a classic Barra waiting game.
Stay safe out there.
Rusty
Short Range ForecastHeavy rain (total 45mm), heaviest during Mon afternoon. Very mild (max 15°C on Mon morning, min 11°C on Tue night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu morning. Very mild (max 15°C on Fri afternoon, min 12°C on Thu morning). Winds decreasing (near gales from the S on Fri afternoon, moderate winds from the SW by Sat night). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | NW 13 | SW 8 | SW 10 | WSW 10 | W 10 | W 9 | WSW 11 | WSW 10 | WSW 8 | WSW 10 | W 15 | W 14 | W 13 | WSW 12 | WSW 11 | WSW 10 | W 11 | W 12 | W 12 | W 13 | W 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 60 | 579 | 496 | 363 | 550 | 554 | 961 | 625 | 782 | 2299 | 10351 | 7767 | 3785 | 3301 | 1555 | 1682 | 2339 | 2364 | 2300 | 2175 | 1187 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | on | cross-on | glassy | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross |
High Tide | 9:00PM3.40m | 9:13AM3.27m | 9:33PM3.16m | 9:47AM3.06m | 10:07PM2.89m | 10:23AM2.82m | 10:45PM2.62m | 11:07AM2.56m | 11:36PM2.36m | 12:13PM2.34m | 1:02AM2.18m | 2:03PM2.25m | 2:58AM2.21m | ||||||||
Low Tide | 2:43PM0.09m | 3:01AM0.28m | 3:17PM0.32m | 3:33AM0.52m | 3:51PM0.59m | 4:07AM0.78m | 4:29PM0.89m | 4:46AM1.06m | 5:18PM1.18m | 5:42AM1.30m | 6:39PM1.40m | 7:28AM1.43m | 8:43PM1.41m | ||||||||
 |  |  |  | |  |  |  | | | |  |  | | |  | | | | | | |
 | 6:56 | — | — | 6:58 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — |
 | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | — | 7:40 | — | — | 7:37 | — | — | 7:36 | — |
mm | 7 | 13 | 16 | 1 | 1 | 1 | — | 1 | 5 | 2 | 2 | — | — | 2 | — | — | — | — | — | 3 | — |
Temp °C | 15 | 15 | 14 | 13 | 14 | 13 | 12 | 13 | 14 | 12 | 13 | 13 | 13 | 15 | 14 | 13 | 13 | 13 | 13 | 14 | 15 |
Feels °C | 8 | 9 | 12 | 7 | 7 | 8 | 10 | 4 | 6 | 2 | 4 | 6 | 6 | 9 | 7 | 5 | 6 | 6 | 9 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 13 | NNW 12 | SW 10 | WSW 10 | NNW 10 | W 9 | WSW 11 | NNW 8 | N 8 | N 8 | — | — | W 13 | W 12 | — | — | — | — | W 12 | W 13 | W 12 |
| kJ | 60 | 28 | 496 | 363 | 10 | 554 | 961 | 24 | 6 | 1 | — | — | 2431 | 915 | — | — | — | — | 2300 | 2175 | 1187 |
Swell 2 Height (m) Direction Period (s) | NNW 12 | NW 12 | SSE 5 | NW 11 | NW 10 | W 12 | N 9 | NW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 30 | 23 | 21 | 5 | 4 | 78 | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | N 12 | NW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 8 | SW 8 | NW 11 | NW 4 | W 10 | N 10 | — | WSW 10 | WSW 8 | WSW 10 | W 15 | W 14 | W 13 | WSW 12 | WSW 11 | WSW 10 | W 11 | W 12 | — | — | SSE 4 |
| kJ | 475 | 579 | 99 | 16 | 550 | 7 | — | 625 | 782 | 2299 | 10351 | 7767 | 3785 | 3301 | 1555 | 1682 | 2339 | 2364 | — | — | 29 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 147 | 147 | 213 | 325 | 983 | 623 | 0 | 194 | 304 | 340 | 953 | 557 | 194 | 286 | 194 | 209 | 393 | 184 | 67 | 184 | 184 |
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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