On the beach
Right now
Sample dataIllustrative conditions — the live Open-Meteo marine feed wasn't reachable, so these are deterministic placeholder values that will be replaced automatically once the feed is available.
7-day outlook
Sample dataModeled placeholder forecast for demonstration — will be replaced by a live marine-weather feed.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 27.4 | 0.6 |
| Thu 3 | 26.9 | 0.6 |
| Fri 4 | 26.6 | 0.6 |
| Sat 5 | 26.8 | 0.6 |
| Sun 6 | 27.3 | 0.6 |
| Mon 7 | 27.8 | 0.6 |
| Tue 8 | 27.8 | 0.6 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Good2015
- 2016: Poor2016
- 2017: Poor2017
- 2018: Poor2018
- 2019: Poor2019
- 2020: Not classified2020
- 2021: Good2021
- 2022: Good2022
- 2023: Sufficient2023
- 2024: Sufficient2024
- 2025: Poor2025
Poor in the most recent season, and 3 of 10 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Good |
| 2016 | Poor |
| 2017 | Poor |
| 2018 | Poor |
| 2019 | Poor |
| 2020 | Not classified |
| 2021 | Good |
| 2022 | Good |
| 2023 | Sufficient |
| 2024 | Sufficient |
| 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 | 14 |
| Feb | 14 |
| Mar | 14 |
| Apr | 16 |
| May | 19 |
| Jun | 22 |
| Jul | 24 |
| Aug | 25 |
| Sep | 24 |
| Oct | 22 |
| Nov | 19 |
| Dec | 16 |
Location & nearby beaches
Nearby beaches
- La Frette22 kmAisne
- 45 km
- 50 km
- 51 km
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Saint-Quentin Gare, about ~280 m away.
Food, stays & town
- Nearest city: Saint-Quentin, about ~1.1 km away.
- 40 places to eat within 1 km Closest is La Bonne Planque, about ~290 m away.
- 7 places to stay mapped nearby Closest is Le Saint-Quentin, about ~360 m away.
- 17 shops nearby, the closest about ~240 m away
What kind of beach is this?
This is a town beach, woven into the everyday fabric of a city or larger settlement — expect company on warm days, especially through July and August, alongside easy access to shops and services.
Estimated from OpenStreetMap surroundings data (ODbL).
- Families
- Water sports
Is the water clean at Etang D'Isle?
Thinking of swimming at Etang D'Isle? The short answer: its official EU Bathing Water rating for 2025 is Poor — below the EU standard; swimming may be discouraged or restricted by local authorities. 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 Sufficient to Poor in 2025, so it's especially worth checking the latest local advisories. There's parking about ~100 m from the beach.
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 10 classified seasons on record, 3 have come back Excellent or Good — a track record worth checking each year rather than assuming. On site you'll find Sandy shore, Kids' area, and Parking. The nearest town, Saint-Quentin, is about ~1.1 km away.
Worth remembering: “Poor” isn't a live reading, it's an annual grade — Excellent, Good, Sufficient or Poor — set once a year from that season's water samples and describing the average, not this afternoon's conditions. For what the sea is doing right now, check the “Right now” panel and 7-day outlook above. It sits in Aisne. There are 40 places to eat within a kilometre — La Bonne Planque is the closest, about ~290 m away.
Frequently asked questions
Is it safe to go in the water at Etang D'Isle?
Caution is advised — Etang D'Isle's official 2025 rating is Poor. Check for local advisories and posted flags before going in.
What is the sea temperature at Etang D'Isle today?
For Etang D'Isle, the ~27°C figure above is a stand-in value, not a live reading — the marine-weather feed was unreachable when the page last built, and it'll swap in automatically once the feed responds again. That's the reading right off Aisne. On the modeled climatology here, August usually runs warmest.
When does Etang D'Isle have the warmest water?
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 Aisne. Within that window, August is typically the single warmest month.
Where does the water quality rating come from?
Behind the annual grade: a season of testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring under the EU Bathing Water Directive. A few countries, Croatia via IZOR included, also publish individual in-season samples ahead of that report, but Etang D'Isle doesn't have one published yet.
Is there parking near Etang D'Isle?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Saint-Quentin Gare, about ~280 m away. The nearest town is Saint-Quentin, about ~1.1 km away.