Greece · Central Greece
Agios Ioannis
Central Greece, Greece
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 | 23.0 | 0.2 |
| Thu 3 | 23.2 | 0.2 |
| Fri 4 | 23.1 | 0.2 |
| Sat 5 | 22.6 | 0.2 |
| Sun 6 | 22.2 | 0.2 |
| Mon 7 | 22.1 | 0.2 |
| Tue 8 | 22.4 | 0.2 |
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: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent in the most recent season, and 11 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 | Excellent |
| 2023 | Excellent |
| 2024 | Excellent |
| 2025 | Excellent |
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 | 16 |
| Feb | 16 |
| Mar | 16 |
| Apr | 18 |
| May | 21 |
| Jun | 24 |
| Jul | 26 |
| Aug | 27 |
| Sep | 26 |
| Oct | 24 |
| Nov | 21 |
| Dec | 18 |
Location & nearby beaches
Nearby beaches
- Melissia2.1 kmCentral Greece
- Karavomylos Dytika2.9 kmCentral Greece
- Karavomylos3.8 kmCentral Greece
- Paralia Achinou4.5 kmCentral Greece
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- By car: there's parking about ~890 m from the beach.
Food, stays & town
- Nearest village: Καραβόμυλος, about ~3.3 km away.
- 1 place to stay mapped nearby Closest is Ξενοδοχειο Τσαμαντάνης, 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 Agios Ioannis?
Agios Ioannis sits on a stretch of coast classed as a coastal bathing site, carrying an official EU Bathing Water rating of Excellent for the 2025 season. Under the EU Bathing Water Directive, national authorities test for intestinal enterococci and E. coli through the season and report the results the following spring — the 2025 rating was published in spring 2026, and 2026's won't follow 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. It sits in Central Greece. You can park about ~890 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. That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. Καραβόμυλος — the closest town — sits about ~3.3 km from here.
“Excellent” 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
Is Agios Ioannis a safe beach for swimming?
Generally, yes. Agios Ioannis's 2025 EU Bathing Water rating is Excellent — the highest tier — backed by 11 of 11 classified seasons rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
How warm is the sea at Agios Ioannis right now?
The panel above shows a sample value of around 23°C. This is placeholder data shown because a live marine-weather feed wasn't reachable — it will be replaced automatically once the feed is available. That's the reading right off Central Greece.
Which month has the warmest sea at Agios Ioannis?
The most reliable stretch for warm water runs through July–September, based on the modeled climatology. That applies to the water around Central Greece.
What's behind the water quality rating shown above?
The annual classification — Excellent, Good, Sufficient or Poor — is built from a full season of official testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring. Some national authorities (Croatia's IZOR among them) also publish individual samples during the season itself; Agios Ioannis isn't yet covered by that in-season feed.
How do I get to Agios Ioannis without a car?
By car, there's parking about ~890 m from the beach. The nearest town is Καραβόμυλος, about ~3.3 km away.