France · Finistère
Porsmoguer-Kerhornou
Finistère, France
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 | 18.5 | 1.3 |
| Thu 3 | 18.5 | 1.2 |
| Fri 4 | 18.6 | 1.4 |
| Sat 5 | 19.3 | 1.4 |
| Sun 6 | 19.2 | 1.0 |
| Mon 7 | 19.1 | 1.6 |
| Tue 8 | 19.0 | 2.1 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Sufficient2015
- 2016: Sufficient2016
- 2017: Sufficient2017
- 2018: Sufficient2018
- 2019: Sufficient2019
- 2020: Sufficient2020
- 2021: Good2021
- 2022: Good2022
- 2023: Good2023
- 2024: Good2024
- 2025: Sufficient2025
Sufficient in the most recent season, and 4 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Sufficient |
| 2016 | Sufficient |
| 2017 | Sufficient |
| 2018 | Sufficient |
| 2019 | Sufficient |
| 2020 | Sufficient |
| 2021 | Good |
| 2022 | Good |
| 2023 | Good |
| 2024 | Good |
| 2025 | Sufficient |
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 | 17 |
| May | 19 |
| Jun | 22 |
| Jul | 23 |
| Aug | 24 |
| Sep | 23 |
| Oct | 22 |
| Nov | 19 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Corsen1.4 kmFinistère
- Ruscumunoc2.1 kmFinistère
- Pors Sevigne2.8 kmFinistère
- Illien2.8 kmFinistère
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Kerhornou, about ~780 m away.
Food, stays & town
- Nearest village: Trézien, about ~2.0 km away.
- 1 place to eat within 1 km Closest is La Colo, about ~510 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 Porsmoguer-Kerhornou?
Thinking of swimming at Porsmoguer-Kerhornou? The short answer: its official EU Bathing Water rating for 2025 is Sufficient — meets the minimum EU standard in the latest annual assessment. 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. Worth noting: the rating slipped from Good to Sufficient in 2025, so it's especially worth checking the latest local advisories. You can park about ~150 m away.
Looking to avoid the busiest weeks? The water is typically warmest around August, with the most reliable swimming window running July–September; outside that stretch you'll find a cooler sea but a quieter beach. Over the 11 classified seasons on record, 4 have come back Excellent or Good — a track record worth checking each year rather than assuming. On site you'll find Parking. Trézien — the closest town — sits about ~2.0 km from here.
“Sufficient” 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. There's 1 place to eat near the beach — La Colo, about ~510 m away.
Frequently asked questions
Is Porsmoguer-Kerhornou a safe beach for swimming?
Generally yes, but with caution. Its official 2025 rating is Sufficient — the minimum passing grade — so check for posted local advisories before swimming.
How warm is the sea at Porsmoguer-Kerhornou right now?
Right now, the sea at Porsmoguer-Kerhornou is measuring around 19°C; see the “Right now” panel above for the latest conditions. That's the reading right off Finistère.
What's the best month to visit Porsmoguer-Kerhornou for swimming?
July–September is typically the most reliable swimming window, with the sea usually warmest in the second half of summer. That applies to the water around Finistère.
How is the water quality rating measured?
National authorities sample the water for intestinal enterococci and E. coli bacteria through the bathing season and report the full-season results to the European Environment Agency each spring for the season just finished, which assigns one of four annual classifications — Excellent, Good, Sufficient or Poor — under the EU Bathing Water Directive. Some national authorities, including Croatia's IZOR, also publish individual in-season sample results ahead of that annual report.
How do I get to Porsmoguer-Kerhornou without a car?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Kerhornou, about ~780 m away. The nearest town is Trézien, about ~2.0 km away.