Surf Forecasts:
Port Rhu surf forecast from 2 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 2PM (local time) - 5ft (1.5m), 8s period, W swell with 291 kJ wave energy.
Best Forecast Surf Conditions for Port Rhu this week:
The most powerful waves expected at Port Rhu in the next 16 days are 1.5m 8s and forecast to arrive on Wednesday (Aug 05) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Aug 10) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Wed 5th Aug) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Port Rhu over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you: the next couple of weeks are looking grim for a proper paddle. We've got a full-blown flat spell on our hands, so don't bother dragging your board down to Port Rhu just yet.
Right now, on Sunday the 2nd, it's tiny – barely a wobble at 1ft with a weak 8-second period. The wind is on it, and it's just poor. The water is sitting at 68°F, which is a touch warmer than usual for this time of year, so at least you won't freeze while you're staring at the flatness.
We're looking at a serious gap here. From now until the middle of next week, there is nothing. Nada. The swell stays small, mostly under 3ft, and even when it bumps up to 4ft on Tuesday and Wednesday, the wind is all over it – cross-onshore and choppy. That's not surf, that's a washing machine. The combined energy is weak to moderate at best, hitting around 159 on Tuesday morning, but it's a messy and unrideable energy. It's a proper write-off.
We finally see a shift around the 10th and 11th with some offshore and cross-offshore winds, but there's still no swell to speak of. It's just clean and flat, which is almost more frustrating.
The only glimmer of hope, and I mean the only real standout, is way out there on Saturday the 15th of August. For the first time, the models are showing a pulse of energy. The surf is still small, around 3ft, but it's from the WNW with a 10-second period, and crucially, the wind is light and cross-offshore. The combined energy jumps right up to 216, which is the strongest reading we've seen in the whole window. It's still small, but it should be clean and have a bit of push. That's your window. It's a week and a half away, so don't hold your breath, but it's something to dream about.
Before that, on Friday the 14th afternoon, there's a tiny 2ft with a light cross-offshore breeze, but the energy is weak and it's just "ordinary." Not worth the effort.
So, the long and short of it is: we're in for a long, flat, blown-out stretch. Keep your boards in the car if you must, but honestly, you might be better off finding something else to do. The 15th is the one to circle on the calendar – promising, but we'll have to see if it holds.
Keep the faith.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sun night, min 18°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Fri night, min 14°C on Fri morning). Winds decreasing (fresh winds from the W on Wed night, light winds from the N by Fri morning). | ||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 | W 8 | W 8 | W 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | W 8 | W 8 | W 7 | W 7 | W 10 | W 10 | W 9 | WNW 5 | W 9 | W 4 | WNW 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 47 | 50 | 51 | 49 | 130 | 147 | 153 | 186 | 219 | 153 | 48 | 58 | 17 | 16 | 16 | 13 | 6 | 23 | 18 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | on | cross-off | cross | on | cross | cross | on | cross-on |
High Tide | 8:01PM4.29m | 8:20AM4.02m | 8:36PM4.18m | 8:57AM3.92m | 9:15PM4.01m | 9:40AM3.77m | 10:03PM3.79m | 10:33AM3.59m | 11:04PM3.55m | 11:44AM3.44m | 00:30AM3.39m | 1:19PM3.44m | 2:11AM3.44m | ||||||
Low Tide | 2:25AM0.41m | 2:37PM0.54m | 3:03AM0.54m | 3:18PM0.69m | 3:46AM0.72m | 4:06PM0.87m | 4:37AM0.93m | 5:06PM1.06m | 5:42AM1.12m | 6:20PM1.17m | 6:59AM1.20m | 7:42PM1.11m | |||||||
 |  | |  | | | | | | | | |  | | | |  | | | |
 | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — |
 | 9:45 | — | — | 9:44 | — | — | 9:43 | — | — | 9:40 | — | — | 9:39 | — | — | 9:37 | — | — | 9:37 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 19 | 20 | 20 | 20 | 20 | 20 | 18 | 18 | 18 | 16 | 17 | 20 | 16 | 18 | 21 | 16 | 19 | 19 |
Feels °C | 20 | 17 | 17 | 18 | 19 | 19 | 18 | 15 | 15 | 12 | 15 | 13 | 14 | 15 | 14 | 15 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 8 | W 8 | W 8 | WSW 8 | W 9 | — | WSW 7 | — | W 8 | W 7 | W 10 | W 5 | W 6 | W 9 | WNW 5 | W 9 | — | WNW 5 |
| kJ | 47 | 50 | 51 | 49 | 130 | 6 | — | 186 | — | 32 | 48 | 18 | 12 | 7 | 16 | 13 | 6 | — | 18 |
Swell 2 Height (m) Direction Period (s) | WNW 3 | NW 6 | NW 6 | — | — | W 9 | — | — | — | — | W 10 | — | W 10 | W 10 | — | W 9 | WNW 6 | — | WNW 9 |
| kJ | 1 | 2 | 2 | — | — | 15 | — | — | — | — | 18 | — | 17 | 16 | — | 7 | 3 | — | 16 |
Swell 3 Height (m) Direction Period (s) | W 6 | — | — | — | — | — | — | — | — | — | — | — | W 7 | — | — | — | — | — | W 6 |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 3 | WSW 3 | WSW 4 | WSW 7 | WSW 7 | WSW 7 | W 8 | W 8 | — | W 7 | NNE 3 | — | W 3 | NNE 3 | — | W 4 | N 3 |
| kJ | — | — | 3 | 3 | 6 | 147 | 153 | 85 | 219 | 153 | — | 58 | 3 | — | 10 | 6 | — | 23 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 84 | 258 | 109 | 97 | 679 | 138 | 139 | 149 | 28 | 7 | 149 | 81 | 131 | 455 | 453 | 112 | 354 | 81 |
Best forecast wave conditions in Morbihan - Brittany | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
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Information about the Port Rhu Surf forecast
The above surf forecast table for Port Rhu provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Port Rhu can be found by selecting the local surf guide option on the grey menu. Our Port Rhu 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 (Port Rhu) 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 Port Rhu 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.
Port Rhu is 31 km (19 miles) from the city of Lanester. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lanester. Lanester has rooms for a wide range of budgets as well as car hire and transport links.
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