On the beach
Right now
Live conditions from Open-Meteo, refreshed hourly.
7-day outlook
7-day marine forecast from Open-Meteo.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 18.1 | 1.2 |
| Thu 3 | 18.4 | 1.1 |
| Fri 4 | 18.6 | 1.5 |
| Sat 5 | 19.1 | 1.5 |
| Sun 6 | 19.3 | 1.1 |
| Mon 7 | 19.4 | 1.4 |
| Tue 8 | 19.3 | 1.9 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Poor2015
- 2016: Not classified2016
- 2017: Not classified2017
- 2018: Not classified2018
- 2019: Poor2019
- 2020: Not classified2020
- 2021: Not classified2021
- 2022: Poor2022
- 2023: Not classified2023
- 2024: Not classified2024
- 2025: Not classified2025
Not classified in the most recent season, and 0 of 3 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Poor |
| 2016 | Not classified |
| 2017 | Not classified |
| 2018 | Not classified |
| 2019 | Poor |
| 2020 | Not classified |
| 2021 | Not classified |
| 2022 | Poor |
| 2023 | Not classified |
| 2024 | Not classified |
| 2025 | Not classified |
Typical sea temperature by month
Modeled estimatePlausible seasonal climatology derived from latitude, for illustration — not a measured average.
Monthly sea temperature
Typical range across the year, °C
View as table
| Month | Typical sea temp (°C) |
|---|---|
| Jan | 15 |
| Feb | 14 |
| Mar | 15 |
| Apr | 16 |
| May | 19 |
| Jun | 21 |
| Jul | 23 |
| Aug | 24 |
| Sep | 23 |
| Oct | 22 |
| Nov | 19 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Croix375 mFinistère
- Barrachou628 mFinistère
- Poul Feunteun1.2 kmFinistère
- Dibennou1.4 kmFinistère
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- By car: there's parking about ~1.4 km from the beach.
- Bus stop: Moulin de Couffon, about ~1.1 km away.
Food, stays & town
- Nearest village: Guissény, about ~800 m away.
What kind of beach is this?
This beach belongs to a small coastal village. It's usually calmer than a resort or town beach, though a popular village spot can still fill up on the best summer days.
Estimated from OpenStreetMap surroundings data (ODbL).
Is the water clean at Lerret?
Thinking of swimming at Lerret? The short answer: its official EU Bathing Water rating for 2025 is Not classified — not enough samples in this year to assign an official rating. That rating is set once a year under the EU Bathing Water Directive, from a full season of testing for intestinal enterococci and E. coli reported to the European Environment Agency the following spring, so the 2025 season's grade appeared in spring 2026 and the 2026 season won't be graded until spring 2027. In addition to that yearly rating, some national authorities — for Croatia, the national environmental authority — publish individual water sample results during the season itself, ahead of the annual report. There's parking about ~1.4 km from the beach.
Over the 3 classified seasons on record, 0 have come back Excellent or Good — a track record worth checking each year rather than assuming. If you're timing a visit around water temperature rather than crowds, July–September is the safest bet, with August typically the peak — expect a cooler, calmer sea either side of that stretch. The nearest town, Guissény, is about ~800 m away.
“Not classified” is one point on a four-step scale — Excellent, Good, Sufficient or Poor — assigned once per year from that season's water samples, not a live reading. It describes how the site performs on average across the season, not the exact water quality this afternoon; for day-to-day sea conditions, see the “Right now” and 7-day outlook panels above.
Frequently asked questions
Should you swim at Lerret?
Best to be careful here: Lerret's official 2025 classification is Not classified, so check for local advisories and posted flags before swimming.
What temperature is the sea at Lerret right now?
The latest reading puts the sea at Lerret at around 18°C — the “Right now” panel above has the full live picture. That's the reading right off Finistère. On the modeled climatology here, August usually runs warmest.
When is the best time to swim at Lerret?
For swimming, July–September is usually the best call — that's the modeled window when the sea here runs warmest. That applies to the water around Finistère. Within that window, August is typically the single warmest month.
Who measures the water quality rating, and how?
Once a year, national authorities report a full season of testing for intestinal enterococci and E. coli to the European Environment Agency, which grades the season Excellent, Good, Sufficient or Poor under the EU Bathing Water Directive. A handful of countries, including Croatia via IZOR, also publish individual in-season samples ahead of that report — Lerret doesn't have that feed set up yet.
What's the easiest way to reach Lerret?
By car, there's parking about ~1.4 km from the beach. By bus, the nearest stop is Moulin de Couffon, about ~1.1 km away. The nearest town is Guissény, about ~800 m away.