Surf Forecasts:
Trez Hir surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 5PM (local time) - 5.5ft (1.7m), 11s period, WNW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 5PM (local time) - 7.5ft (2.3m), 10s period, WNW swell with 983 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 3ft (0.9m), 7s period with WNW swell.
Best Forecast Surf Conditions for Trez Hir this week:
The surf forecast for Trez Hir over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.4m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Trez Hir in the next 16 days are 2.3m 10s and forecast to arrive on Thursday (Aug 20) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 8s period and expected on Saturday (Aug 22) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 19th Aug) | 3ft (0.9m) 7s |
| Best Surf | 5PM (Wed 19th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 5PM (Thu 20th Aug) | 7.5ft (2.3m) 10s |
Table - best surf conditions forecast for Trez Hir over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s get into it.
First off, Trez Hir is a bit of a tricky one. It’s a spot that rarely breaks, so when it does, you’ve got to be on it. The best window is shaping up to be the middle of this week, with Wednesday and Thursday offering the most promise. The swell is coming from the WNW, and with a period of 10 to 11 seconds, it’s a solid groundswell that will wrap in with some decent energy (472 to 1085). The Wednesday morning session has a gentle offshore breeze from the WNW, which will keep it clean and well-shaped. The afternoon sees a bit more wind, but still offshore, and the energy jumps up to 1085, making for some punchy, lined-up waves. This is the best of the lot for the whole forecast.
Thursday still has size, with waves around 8 ft to 8 ft from the WNW, but the wind swings cross-offshore, so it won’t be as glassy. Still, there’s a lot of energy in the water (1572 to 1631), so it’ll be powerful. Just be aware that at this size, it’s getting a bit much for beginners. For the experienced crew, it’s a solid day.
After that, things drop off sharply. Friday sees the swell back down to 5 ft to 6 ft, with a moderate offshore wind, but the energy drops right off (328 to 512). Saturday and Sunday are a write-off – tiny waves, poor conditions, and on Sunday the wind is fresh and cross-shore, making it lumpy. There’s a real gap in the surf from the 22nd of August through to the 25th, with only small, weak, and poor-quality waves on offer.
The end of the month and into early September has some glimmers. The 27th of August brings a morning of knee-to-waist high, short-period swell (7 seconds) from the WNW, but with light offshore winds, it’ll be clean. The 29th and 30th of August look like the next decent run, with 4 ft to 6 ft from the W and WNW, periods of 8 to 9 seconds, and clean, offshore winds. The energy is moderate (424 to 453), so it’s not a powerhouse, but it’ll be rideable and fun.
Then, the 1st of September afternoon is a standout for the long-range, with a very clean, light offshore wind, 5 ft from the WNW, and a period of 10 seconds. The energy is strong (775), and the conditions look excellent. Promising, but it’s a way off, so keep an eye on it.
Given that Trez Hir rarely breaks, you’ve got to pick your window. The 19th and 20th of August are the best bets in the near term, with the 1st of September a potential later-season highlight.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed morning. Very mild (max 19°C on Tue night, min 17°C on Wed morning). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sun afternoon, min 15°C on Fri night). Winds increasing (light winds from the NW on Fri night, fresh winds from the NNE by Sun afternoon). | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 7 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 10 | W 9 | W 9 | W 9 | W 9 | W 8 | W 9 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 76 | 454 | 643 | 651 | 938 | 983 | 817 | 495 | 311 | 236 | 46 | 28 | 24 | 13 | 13 | 12 | 14 | 14 | 13 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off |
High Tide | 9:40PM5.06m | 10:00AM4.81m | 10:21PM4.57m | 10:44AM4.39m | 11:13PM4.13m | 11:47AM4.03m | 00:35AM3.82m | 1:26PM3.88m | 2:22AM3.82m | 2:58PM4.05m | 3:35AM4.08m | 3:57PM4.40m | 4:22AM4.44m | ||||||
Low Tide | 4:04AM1.19m | 4:24PM1.42m | 4:45AM1.64m | 5:13PM1.83m | 5:39AM2.03m | 6:20PM2.14m | 6:56AM2.27m | 7:54PM2.24m | 8:33AM2.23m | 9:21PM2.03m | 9:46AM1.94m | 10:19PM1.66m | |||||||
 |  |  |  | | |  | |  |  | | | | | | | | | | |
 | — | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:24 | — | — |
 | 9:28 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:16 |
mm | — | 6 | 2 | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 17 | 17 | 19 | 21 | 19 | 18 | 20 | 20 |
Feels °C | 19 | 17 | 15 | 14 | 14 | 15 | 15 | 15 | 14 | 16 | 12 | 13 | 13 | 13 | 15 | 13 | 15 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | SW 16 | WNW 11 | SW 15 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 10 | W 9 | NW 6 | NNW 6 | W 9 | NNW 6 | NW 5 | W 9 | W 8 |
| kJ | 76 | 9 | 643 | 8 | 938 | 983 | 817 | 495 | 311 | 236 | 46 | 28 | 75 | 41 | 13 | 24 | 10 | 14 | 13 |
Swell 2 Height (m) Direction Period (s) | W 8 | NW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 15 | SW 15 | SW 15 | W 9 | W 9 | SW 14 | W 8 | W 9 | NW 8 | NW 5 |
| kJ | 18 | 7 | 10 | 9 | 8 | 8 | 7 | 7 | 7 | 9 | 9 | 8 | 24 | 13 | 8 | 12 | 14 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 15 | — | — | — | — | — | SW 16 | SW 16 | — | SW 12 | SW 12 | SW 14 | NW 7 | W 10 | SW 14 | NW 9 | SW 13 | NW 8 |
| kJ | 11 | 9 | — | — | — | — | — | 10 | 10 | — | 6 | 6 | 8 | 7 | 2 | 8 | 3 | 7 | 2 |
Wind waves Height (m) Direction Period (s) | — | WNW 10 | W 10 | WNW 10 | WNW 9 | WNW 10 | — | — | — | — | NW 7 | NNW 6 | — | — | N 5 | ENE 3 | NNE 4 | NNW 4 | NNE 3 |
| kJ | — | 454 | 432 | 651 | 626 | 640 | — | — | — | — | 127 | 100 | — | — | 53 | 1 | 4 | 10 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 86 | 70 | 360 | 0 | 0 | 192 | 28 | 39 | 71 | 2 | 198 | 102 | 507 | 456 | 539 | 534 |
Best forecast wave conditions in Finistere - Brittany | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
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Information about the Trez Hir Surf forecast
The above surf forecast table for Trez Hir provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trez Hir can be found by selecting the local surf guide option on the grey menu. Our Trez Hir 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 (Trez Hir) 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 Trez Hir 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.
Trez Hir is 12 km (7 miles) from the city of Camaret-sur-Mer. If you plan a holiday in Finistere - Brittany, look for hotels and other accommodation in Camaret-sur-Mer. Camaret-sur-Mer has rooms for a wide range of budgets as well as car hire and transport links.
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