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 | 18.6 | 1.1 |
| Thu 3 | 18.8 | 1.0 |
| Fri 4 | 18.9 | 1.2 |
| Sat 5 | 19.8 | 1.2 |
| Sun 6 | 19.6 | 0.9 |
| Mon 7 | 19.4 | 1.4 |
| Tue 8 | 19.3 | 1.8 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Excellent2015
- 2016: Excellent2016
- 2017: Excellent2017
- 2018: Excellent2018
- 2019: Excellent2019
- 2020: Excellent2020
- 2021: Excellent2021
- 2022: Good2022
- 2023: Good2023
- 2024: Poor2024
- 2025: Poor2025
Poor in the most recent season, and 9 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Excellent |
| 2016 | Excellent |
| 2017 | Excellent |
| 2018 | Excellent |
| 2019 | Excellent |
| 2020 | Excellent |
| 2021 | Excellent |
| 2022 | Good |
| 2023 | Good |
| 2024 | Poor |
| 2025 | Poor |
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
- Aber1.6 kmFinistère
- Portzic1.9 kmFinistère
- Morgat (Toul An Trez)2.6 kmFinistère
- Kador3.0 kmFinistère
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
Food, stays & town
- Nearest village: Crozon, about ~2.1 km away.
- 1 place to eat within 1 km Closest is Restaurant Le Korrigan, about ~160 m away.
- 1 shop nearby, about ~1.4 km away
What kind of beach is this?
With no facilities mapped nearby, this beach is usually on the quiet side even in season — worth knowing if you're after solitude, but also worth bringing your own water and shade.
Estimated from OpenStreetMap surroundings data (ODbL).
- A quiet swim
Is the water clean at Postolonnec?
Postolonnec is a coastal bathing site with an official EU Bathing Water rating of Poor for the 2025 season — below the EU standard; swimming may be discouraged or restricted by local authorities. That annual classification comes from the EU Bathing Water Directive: national authorities test for two indicator bacteria, intestinal enterococci and E. coli, throughout the bathing season, then report the full-season results to the European Environment Agency (EEA) the following spring — the 2025 season's rating was published in spring 2026, and the 2026 season won't be rated 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. On site you'll find Toilets, Restaurant, and Parking. There's parking about ~80 m from the beach.
Over the 11 classified seasons on record, 9 have come back Excellent or Good — a track record worth checking each year rather than assuming. The most reliable swimming window here typically runs from July–September, with the sea usually at its warmest around August. Outside that window the water is cooler and often quieter. It's been a consistently reliable spot too — the rating has held at Poor for 2 straight years. The nearest town, Crozon, is about ~2.1 km away.
That “Poor” label comes from a full season of official water sampling, not a single test — it's one step on a four-point scale (Excellent, Good, Sufficient, Poor) reassessed once a year. Today's actual conditions can differ from the seasonal average, so for a live snapshot see the “Right now” and 7-day outlook panels above. There's 1 place to eat near the beach — Restaurant Le Korrigan, about ~160 m away.
Frequently asked questions
Is it safe to go in the water at Postolonnec?
Caution is advised — Postolonnec's official 2025 rating is Poor. Check for local advisories and posted flags before going in.
What temperature is the sea at Postolonnec right now?
Postolonnec's sea temperature currently sits at around 19°C, based on the latest update — check the “Right now” panel above for 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 Postolonnec?
If you're planning around water temperature, July–September is the window to target — the modeled sea temperature is typically highest then. That applies to the water around Finistère. Within that window, August is typically the single warmest month.
How is bathing water quality actually assessed?
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 — Postolonnec doesn't have that feed set up yet.
What's nearby Postolonnec — parking, buses, or a ferry?
By car, it's easy — parking is right by the beach. The nearest town is Crozon, about ~2.1 km away.