Surf Forecasts:
Barvas (Lewis) surf forecast from 25 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 4PM (local time) - 3.5ft (1.1m), 10s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 4AM (local time) - 5.5ft (1.7m), 9s period, NNE swell with 495 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 4PM (local time) - 3.5ft (1.1m), 10s period with WSW swell.
Best Forecast Surf Conditions for Barvas (Lewis) this week:
The surf forecast for Barvas (Lewis) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 25) at 4PM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.2m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Barvas (Lewis) in the next 16 days are 1.7m 9s and forecast to arrive on Monday (Aug 31) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Friday (Aug 28) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 25th Aug) | 3.5ft (1.1m) 10s |
| Best Surf | 4PM (Tue 25th Aug) | 3.5ft (1.1m) 10s |
| Most Powerful | 4AM (Mon 31st Aug) | 5.5ft (1.7m) 9s |
Table - best surf conditions forecast for Barvas (Lewis) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's break down what the next couple of weeks are offering up.
We’ve got a bit of a wait on our hands before anything really gets going. Nothing worth paddling for until Tuesday morning, August 25th. That first window kicks off at Barvas (Lewis) with clean 5ft waves out of the west, with a 10-second period. That light cross-off breeze from the SSE is going to keep it glassy. The water’s sitting at 57°, which is about average for this time of year. The combined wave energy is moderate (400), so there’s some decent grunt in those sets. Tuesday afternoon backs off to 4ft, but the wind holds, so you’ll still find a few fun ones.
Wednesday the 26th drops right down to a weak 2ft swell with offshore wind. It’s clean but small, and the energy is barely there (58). More of a longboard or log kind of day. That small, clean theme carries into Thursday morning the 27th with a 3ft swell, but the energy is still weak (101).
Then we hit a frustrating, drawn-out flat spell. From Thursday afternoon the 27th all the way through to Monday the 31st of August, it’s pretty grim. The swell tries to pick up, but gets hammered by onshore and cross-onshore winds, making everything choppy and messy. We see a pulse of 8ft swell on the 30th, but with a moderate cross-onshore wind, it’s totally blown out. The energy is strong (896), but it’s just not surfable. A real waiting game.
Things start looking up on Tuesday the 1st of September. That morning brings a solid 7ft swell from the southwest, but the real standout is Tuesday afternoon. We get a big 10ft swell from the west, and here’s the good news – the wind is light and cross-off from the south, making for clean conditions. The combined energy is very strong (1061). Now, 10ft is serious, heavy surf, so this one is for experienced surfers only. This is a real pulse and the clean conditions will make it a heavy, powerful session at Barvas.
Wednesday the 2nd of September is another one for the advanced crew. An 8ft groundswell from the NNW with a long 11-second period pushes in. The energy is extreme (1681). The wind stays light and cross-off from the south, so expect some beautifully shaped, powerful lines. This long-period groundswell can break a bit straight on the beach, but the quality here is undeniable. It’s too big for beginners, but for experts, it’s excellent.
Thursday the 3rd is a monster, but not one you want to be in the water for. 15ft swell from the WNW with a very long 12-second period. The combined energy is off the charts (6809). With a fresh cross-shore wind, it’s going to be a massive, lumpy beast. Watch from the car park. By Friday the 4th, a strong breeze cranks up and the whole thing gets messy again.
The following week looks mostly poor with onshore winds. The next real clean chance might be Tuesday the 8th of September, with a gentle offshore from the SE and a 3ft swell giving some cleaner, smaller waves. We also see a pulse of long-period (12 seconds) swell on Wednesday the 9th, but the moderate offshore wind makes it a little uncertain.
The call: If you’ve got the skills, lock in the afternoon of Tuesday the 1st of September and the morning of Wednesday the 2nd of September. Those two windows at Barvas offer the most powerful, cleanest waves of the whole 16 days. For everyone else, it's a waiting game for better conditions.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Tue morning, min 14°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Fri night. Very mild (max 16°C on Fri morning, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | W 10 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | W 10 | W 9 | W 8 | W 8 | WNW 7 | W 7 | NNE 6 | NW 7 | NW 7 | NNW 7 | N 8 | NNE 8 | NNE 8 | NNE 9 | NNE 9 | WSW 9 |
Wave Graph | |||||||||||||||||||||
400 | 240 | 126 | 53 | 36 | 96 | 101 | 51 | 20 | 18 | 9 | 59 | 73 | 93 | 117 | 256 | 212 | 432 | 360 | 254 | 238 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | off | off | cross-off | glassy | cross | cross-off | glassy | on | on | cross-on | glassy | cross | cross-off | cross | cross-on | cross |
High Tide | 6:28PM3.04m | 6:54AM2.96m | 7:02PM3.26m | 7:27AM3.14m | 7:32PM3.46m | 7:57AM3.29m | 8:02PM3.59m | 8:27AM3.39m | 8:32PM3.67m | 8:58AM3.44m | 9:03PM3.67m | 9:29AM3.43m | 9:36PM3.60m | ||||||||
Low Tide | 12:18PM0.94m | 00:45AM0.67m | 12:52PM0.73m | 1:18AM0.44m | 1:24PM0.55m | 1:49AM0.24m | 1:56PM0.42m | 2:20AM0.10m | 2:27PM0.33m | 2:51AM0.03m | 2:59PM0.30m | 3:22AM0.05m | 3:32PM0.34m | 3:56AM0.15m | |||||||
6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | |
— | 8:45 | — | — | 8:44 | — | — | 8:40 | — | — | 8:37 | — | — | 8:35 | — | — | 8:31 | — | — | 8:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 1 | 1 | 2 | 1 | — | — | 2 | 1 |
Temp °C | 18 | 17 | 16 | 16 | 18 | 18 | 18 | 18 | 15 | 16 | 15 | 14 | 14 | 14 | 13 | 14 | 13 | 13 | 14 | 14 | 12 |
Feels °C | 16 | 14 | 14 | 13 | 16 | 17 | 17 | 16 | 14 | 15 | 14 | 14 | 14 | 13 | 11 | 14 | 12 | 11 | 12 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | W 10 | WSW 10 | WSW 9 | WSW 8 | WSW 8 | W 10 | W 9 | W 8 | ENE 5 | WNW 7 | W 7 | NNE 6 | NW 7 | NW 7 | NNW 7 | N 8 | NNW 7 | NNE 8 | NNE 9 | NNE 9 | WSW 9 |
400 | 240 | 126 | 53 | 36 | 96 | 101 | 51 | 25 | 18 | 9 | 59 | 73 | 93 | 117 | 256 | 86 | 432 | 360 | 254 | 238 | |
Swell 2 Height (m) Direction Period (s) | NE 7 | WNW 8 | ENE 5 | ENE 5 | WNW 7 | WSW 8 | ENE 5 | ENE 5 | W 8 | N 6 | NNE 7 | NNW 6 | NE 6 | E 8 | W 9 | W 8 | WSW 8 | WSW 8 | W 11 | W 10 | NNE 9 |
2 | 7 | 10 | 14 | 5 | 11 | 19 | 15 | 20 | 1 | 4 | 4 | 24 | 1 | 6 | 5 | 23 | 22 | 82 | 96 | 132 | |
Swell 3 Height (m) Direction Period (s) | — | NE 6 | N 6 | WNW 7 | W 11 | N 8 | N 7 | N 7 | N 7 | N 7 | N 7 | W 7 | N 6 | N 10 | E 7 | NE 12 | W 12 | W 11 | — | — | — |
— | 2 | 1 | 5 | 9 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 20 | 2 | 1 | 6 | 3 | 9 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ENE 5 | ENE 5 | — | — | — | NE 5 | NNE 5 | WNW 5 | — | NNE 6 | NE 6 | NNE 7 | NNE 8 | — | — | WSW 4 | SSE 5 |
— | — | — | — | 7 | 9 | — | — | — | 23 | 28 | 17 | — | 30 | 15 | 38 | 212 | — | — | 20 | 8 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 231 | 294 | 106 | 0 | 13 | 630 | 107 | 0 | 14 | 14 | 6 | 107 | 107 |
Best forecast wave conditions in Outer Hebrides | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Barvas (Lewis) Surf forecast
The above surf forecast table for Barvas (Lewis) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Barvas (Lewis) can be found by selecting the local surf guide option on the grey menu. Our Barvas (Lewis) 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 (Barvas (Lewis)) 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 Barvas (Lewis) 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 Barvas (Lewis), camping, hotels and holiday cottages in Outer Hebrides, consider staying in Stornoway which is 20 km (12 miles) away.











