Surf Forecasts:
Trestrignel surf forecast from 18 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 5PM (local time) - 6.5ft (2.0m), 9s period, WNW swell with 645 kJ wave energy.
Best Forecast Surf Conditions for Trestrignel this week:
The most powerful waves expected at Trestrignel in the next 16 days are 2.0m 9s and forecast to arrive on Thursday (Aug 20) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Aug 22) at 11AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Thu 20th Aug) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Trestrignel over the next 16 days.
The Lowdown
Right, Rusty here. Let’s have a look at what’s cooking for Trestrignel.
Honestly, for the bulk of this 16-day run, it’s a bit of a tough stretch. We’re looking at a solid week or more of very ordinary conditions, with the wind pretty much ruining any chance of decent surf. The water’s sitting at 66°F, which is about normal for this time of year, so at least the water temp’s not a shocker.
Things start off on Tuesday the 18th with a 4ft – 4ft WNW swell, but it’s a short-period 6-second windswell with a stiff west wind blowing cross-shore. Combined energy is weak (92). It’s poor, and the afternoon gets even choppier. Wednesday the 19th is more of the same – a bit of swell, but the wind is messy. The swell picks up on Thursday the 20th, with a 6ft – 7ft WNW swell, and the combined energy jumps to moderate (534), but the west wind is still strong and cross-shore, making it a lumpy, choppy mess. Not worth getting wet.
We get a brief window of hope on Friday the 21st morning. The swell drops to 4ft WNW, but we get a clean offshore wind from the NW. The combined energy is moderate (280). It’s a short window, and the afternoon turns cross-on and choppy again. Saturday the 22nd and Sunday the 23rd are a write-off – tiny, weak swell and strong winds. By Monday the 24th, the swell is virtually flat (1.0ft), and it’s glassy. Nice for a paddle, but not for surfing.
The first real glimmer of something decent comes on Tuesday the 25th. The morning is still tiny (2ft), but we have a clean offshore wind from the south. The afternoon sees the swell build to 3ft WNW with a 10-second period (moderate combined energy of 214) and a moderate offshore wind. It’s clean, but only surfable – nothing to write home about. Wednesday the 26th and Thursday the 27th are back to a messy cross-shore wind and lumpy conditions.
From Friday the 28th, things start to settle. The wind turns cross-offshore or clean on several mornings, with a consistent 3ft – 4ft W/WNW swell. The combined energy is moderate (around 180-207). The surf is surfable but ordinary – small and clean, but not exciting. This pattern holds through the weekend and into Monday the 31st.
Now, look here. The standout window is the first day of September, Tuesday the 1st. The swell jumps up to 8ft from the west with a 10-second period, and the combined energy is strong (1301). It’s big, and with a moderate offshore wind from the SSE, it’s going to be clean. But be warned – 8ft is expert territory. This is for the experienced crew only. The afternoon sees a fresh offshore wind, but the swell drops a touch to 7ft. Wednesday the 2nd is still big (7ft), but the wind turns cross-shore, making it a bit tricky.
So, the best bet on offer? That’s the morning of Tuesday the 1st of September. Big, clean, and powerful. If you’re not an expert, you’re better off waiting for a smaller, cleaner morning like the 25th or 28th, but those are just ordinary.
Stay safe out there.
Rusty
Short Range ForecastModerate rain (total 15mm), heaviest on Wed morning. Warm (max 20°C on Tue morning, min 15°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sat morning. Very mild (max 18°C on Sat afternoon, min 15°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 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) | WNW 6 | WNW 6 | WNW 7 | WNW 7 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | W 9 | NE 5 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 92 | 110 | 105 | 147 | 266 | 360 | 534 | 645 | 466 | 280 | 197 | 112 | 40 | 37 | 24 | 14 | 14 | 13 | 12 | 12 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-off | cross | cross-on | cross | on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | glassy | glassy | on | off |
High Tide | 10:56AM6.82m | 11:12PM6.62m | 11:32AM6.32m | 11:51PM6.03m | 12:13PM5.79m | 00:39AM5.46m | 1:09PM5.31m | 1:49AM5.02m | 2:34PM5.02m | 3:29AM4.88m | 4:13PM5.11m | 4:58AM5.14m | 5:25PM5.52m | ||||||||
Low Tide | 5:09PM1.10m | 5:28AM1.35m | 5:47PM1.68m | 6:06AM1.97m | 6:29PM2.26m | 6:52AM2.54m | 7:29PM2.76m | 8:06AM2.97m | 9:11PM3.00m | 9:59AM3.01m | 10:52PM2.75m | 11:18AM2.63m | 11:51PM2.25m | ||||||||
 |  |  |  |  |  |  | | | | | | | | | | | | | | | |
 | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — |
 | — | — | 9:23 | — | — | 9:22 | — | — | 9:20 | — | — | 9:17 | — | — | 9:16 | — | — | 9:15 | — | — | 9:13 |
mm | — | — | — | 11 | 4 | — | — | — | — | — | — | — | 4 | 1 | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 19 | 16 | 18 | 18 | 18 | 19 | 18 | 17 | 17 | 16 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 17 |
Feels °C | 18 | 18 | 18 | 15 | 16 | 15 | 13 | 14 | 15 | 15 | 14 | 14 | 13 | 13 | 14 | 15 | 14 | 15 | 17 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | — | W 8 | W 17 | WNW 7 | WNW 9 | W 15 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | W 9 | W 10 | NE 5 | NW 4 | NW 4 | NW 6 | NW 4 | W 8 | W 8 |
| kJ | — | 4 | 6 | 147 | 266 | 4 | 534 | 645 | 466 | 280 | 197 | 112 | 40 | 28 | 14 | 7 | 3 | 5 | 7 | 12 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 16 | — | — | — | — | — | — | NE 4 | WNW 8 | NW 7 | W 9 | W 9 | W 9 | W 8 | W 8 | NW 5 | NW 5 |
| kJ | — | — | — | — | 5 | — | — | — | — | — | — | 4 | 23 | 14 | 24 | 14 | 14 | 13 | 12 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 15 | W 15 | NW 6 | WNW 7 | NNE 4 | NE 4 | NW 9 | NW 8 | NW 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 5 | 4 | 4 | 11 | 4 | 1 | 1 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | WNW 6 | WNW 6 | WNW 7 | — | — | WNW 9 | — | — | — | — | NNE 4 | — | ENE 4 | NE 5 | — | NE 4 | — | — | — | NNW 3 | — |
| kJ | 92 | 110 | 105 | — | — | 360 | — | — | — | — | 6 | — | 25 | 37 | — | 4 | — | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 119 | 452 | 21 | 13 | 107 | 21 | 299 | 307 | 1 | 95 | 107 | 13 | 101 | 106 | 120 | 473 | 484 | 211 | 452 | 566 | 429 |
Best forecast wave conditions in Cote d'Armor - Brittany | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
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Information about the Trestrignel Surf forecast
The above surf forecast table for Trestrignel provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trestrignel can be found by selecting the local surf guide option on the grey menu. Our Trestrignel 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 (Trestrignel) 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 Trestrignel 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 Cote d'Armor - Brittany? If you are looking for accommodation near Trestrignel, camping, hotels and holiday cottages in Cote d'Armor - Brittany, consider staying in Lannion which is 10 km (6 miles) away. Other places in and around Cote d'Armor - Brittany where you can find information about places to rent, and car hire include Treguier which is 15 km (9 miles) away, Paimpol, Morlaix and Roscoff.
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