
Surf Forecasts:
Ersary beach (Barra) surf forecast from 18 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 7AM (local time) - 7.5ft (2.3m), 9s period, WNW swell with 865 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 2.3m 9s and forecast to arrive on Saturday (Jul 25) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 16s period and expected on Wednesday (Jul 22) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sat 25th Jul) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Ersary beach (Barra) over the next 16 days.
The Lowdown
Right then, let’s talk about Ersary beach (Barra). The water here is sitting at 59°, which is a touch warmer than normal for this time of year, so that’s a nice little bonus.
Honestly, for the next few days, it’s pretty grim. We’ve got a moderate cross-onshore breeze blowing from the north through the weekend, and the swell is all over the place – small, short-period stuff around 2ft to 4ft, with the combined energy barely reaching 140 (weak). It’s choppy and messy, and the wave comment says it all: poor surf conditions. Not a single session worth paddling out for.
That trend of poor surf hangs around all through the next week. The wind stays mostly cross-on from the north-west, and the swell is tiny and weak. Thursday the 24th sees a bit of a jump in swell height to 7ft, but the wind is howling at 25 mph from the west-southwest, making it a total mess. The combined energy hits 685 (moderate), but with that strong cross-onshore, it’s just a washing machine. Not for surfing.
We finally get a bit of a glimmer on Saturday the 25th. The swell is up to 7ft from the west-northwest, with a period of 9 seconds, and the combined energy is a solid 1118 (strong). The wind is a gentle cross-onshore, so it’s fairly choppy. The wave comment calls it marginal, but it’s the best we’ve seen. Still, that’s a big swell for beginners – over 5ft – and the conditions aren’t clean. It’s a maybe for the experienced crew, but nothing to get excited about.
Then, on Monday the 27th, we get a rare moment of magic. The wind drops to nothing, going glassy, and that 5ft swell from the west with an 8-second period is clean. The combined energy is 324 (moderate). The wave comment says "expect good surf conditions." This is the standout of the entire 16-day window. It’s only a short window, and the swell is a bit strong for beginners, but for anyone with a bit of experience, Monday afternoon is the time to go. The water will be clean, the waves will have some shape.
After that, it’s right back to the poor stuff. The wind picks up again, the swell drops, and we’re left with weak, choppy conditions for the rest of the period. The last week is a write-off, with tiny swell and onshore winds.
So, to be honest, the whole 16 days is a bit of a bust. The only real chance to get a wave is that Monday afternoon the 27th, and even then, it’s a short window. If you’re a beginner, there’s nothing here for you. The rest of the time, you’re better off with the kite.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Sat morning, min 11°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Thu afternoon, min 12°C on Tue morning). Winds increasing (light winds from the W on Thu morning, fresh winds from the WSW by Thu night). | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | NNW 6 | NW 7 | NW 7 | NW 7 | WNW 7 | W 11 | NW 7 | NW 7 | NW 7 | W 10 | W 10 | NW 6 | NW 7 | NW 7 | WNW 7 | WNW 7 | W 4 | W 7 | W 9 | W 9 | W 9 |
Wave Graph | |||||||||||||||||||||
60 | 105 | 59 | 36 | 29 | 61 | 79 | 82 | 54 | 50 | 47 | 64 | 75 | 96 | 68 | 67 | 40 | 230 | 685 | 686 | 742 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 10:08PM3.41m | 10:29AM3.11m | 10:53PM3.18m | 11:14AM2.92m | 11:39PM2.92m | 12:02PM2.74m | 00:30AM2.68m | 12:57PM2.57m | 1:30AM2.49m | 2:04PM2.48m | 2:43AM2.40m | 3:20PM2.48m | 3:58AM2.43m | ||||||||
Low Tide | 3:47PM0.18m | 4:17AM0.31m | 4:31PM0.37m | 5:01AM0.54m | 5:18PM0.60m | 5:48AM0.77m | 6:10PM0.84m | 6:41AM0.99m | 7:12PM1.05m | 7:45AM1.14m | 8:27PM1.17m | 8:59AM1.20m | 9:43PM1.16m | ||||||||
5:01 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:07 | — | — | 5:09 | — | — | 5:11 | — | — | |
— | — | 10:08 | — | — | 10:07 | — | — | 10:06 | — | — | 10:04 | — | — | 10:01 | — | — | 10:00 | — | — | 9:59 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 13 | 14 | 15 | 13 | 13 | 13 | 13 |
Feels °C | 9 | 7 | 7 | 10 | 10 | 9 | 7 | 8 | 7 | 9 | 8 | 8 | 8 | 7 | 10 | 12 | 10 | 8 | 6 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | W 7 | S 13 | NW 7 | NW 7 | W 8 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | WSW 9 | WSW 9 | WSW 9 | WNW 7 | S 14 | S 14 | S 14 | S 14 | — | W 9 |
40 | 3 | 59 | 36 | 13 | 61 | 57 | 58 | 52 | 50 | 47 | 28 | 26 | 26 | 68 | 4 | 4 | 4 | 4 | — | 372 | |
Swell 2 Height (m) Direction Period (s) | S 13 | W 15 | WSW 7 | W 9 | W 12 | — | — | — | — | — | SW 7 | — | S 16 | S 16 | WSW 9 | — | S 14 | — | — | — | S 13 |
3 | 4 | 5 | 14 | 24 | — | — | — | — | — | 2 | — | 5 | 5 | 26 | — | 4 | — | — | — | 3 | |
Swell 3 Height (m) Direction Period (s) | — | W 15 | W 9 | W 12 | S 11 | — | — | S 13 | S 18 | S 18 | — | — | — | — | S 15 | — | SW 14 | — | — | — | — |
— | 4 | 7 | 11 | 3 | — | — | 3 | 6 | 6 | — | — | — | — | 4 | — | 8 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 6 | NW 7 | NNE 4 | N 3 | WNW 7 | NW 5 | NW 7 | NW 7 | NW 7 | NW 6 | NW 6 | NW 6 | NW 7 | NW 7 | — | WNW 7 | W 4 | W 7 | W 9 | W 9 | W 9 |
60 | 105 | 8 | 1 | 29 | 27 | 79 | 82 | 54 | 41 | 38 | 64 | 75 | 96 | — | 67 | 40 | 230 | 685 | 686 | 742 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 213 | 295 | 128 | 71 | 200 | 278 | 235 | 472 | 379 | 581 | 781 | 399 | 235 | 128 | 71 | 306 | 295 | 320 | 436 | 1071 | 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.










