Greece · Ionian Islands
Sidari
Ionian Islands, Greece
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 | 29.0 | 0.5 |
| Thu 3 | 28.6 | 0.9 |
| Fri 4 | 28.6 | 0.7 |
| Sat 5 | 28.8 | 0.5 |
| Sun 6 | 29.0 | 0.3 |
| Mon 7 | 29.1 | 0.3 |
| Tue 8 | 29.0 | 0.1 |
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: Good2019
- 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 | Good |
| 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 | 15 |
| Mar | 16 |
| Apr | 18 |
| May | 21 |
| Jun | 24 |
| Jul | 26 |
| Aug | 26 |
| Sep | 25 |
| Oct | 23 |
| Nov | 20 |
| Dec | 18 |
Location & nearby beaches
Nearby beaches
- Canal D Amour427 mIonian Islands
- Apotrypiti838 mIonian Islands
- Astrakeri4.4 kmIonian Islands
- Agios Stefanos6.9 kmIonian Islands
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Sidari Green Buses, about ~190 m away.
- Ferry: Σιδάρι, about ~540 m away.
Food, stays & town
- Nearest village: Σιδάρι, about ~200 m away.
- 36 places to eat within 1 km Closest is Mamacita, about ~270 m away.
- 53 places to stay mapped nearby Closest is Olive grove Hotel, about ~310 m away.
- 11 shops nearby, the closest about ~160 m away
What kind of beach is this?
This beach sits in a built-up resort setting, with hotels, restaurants and services clustered around it — a full-service stretch of coast that tends to be busy in peak season and quieter outside it.
Estimated from OpenStreetMap surroundings data (ODbL).
- Families
- Water sports
- Full-service days
Is the water clean at Sidari?
Sidari is a coastal bathing site with an official EU Bathing Water rating of Excellent for the 2025 season — the highest official classification under the EU bathing-water assessment. 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 Sandy shore, Beach bar, and Restaurant. 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. That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. The nearest town, Σιδάρι, is about ~200 m away.
Worth remembering: “Excellent” 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 Ionian Islands. There are 36 places to eat within a kilometre — Mamacita is the closest, about ~270 m away.
Frequently asked questions
Is Sidari safe to swim in?
Yes, without much reservation. Sidari holds the top EU Bathing Water classification, Excellent, for 2025, and 11 of 11 classified seasons here have rated Excellent or Good. It's also held steady at Excellent for 6 straight years.
What temperature is the sea at Sidari right now?
The most recent reading for Sidari shows the sea at around 29°C. For live, up-to-the-hour conditions, see the “Right now” panel above. That's the reading right off Ionian Islands. On the modeled climatology here, August usually runs warmest.
When is the best time to swim at Sidari?
For the warmest water, aim for July–September — that's when the modeled sea temperature is typically at its best. That applies to the water around Ionian Islands. Within that window, August is typically the single warmest month.
How is bathing water quality actually assessed?
It's based on official water samples: authorities test for intestinal enterococci and E. coli through the season, then report the full-season results to the European Environment Agency each spring, which assigns one of four grades — Excellent, Good, Sufficient or Poor. A few national authorities, including Croatia's IZOR, also publish individual samples during the season itself, ahead of that annual report — that isn't yet available for Sidari.
What's the easiest way to reach Sidari?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Sidari Green Buses, about ~190 m away. By ferry, the nearest landing is Σιδάρι, about ~540 m away. The nearest town is Σιδάρι, about ~200 m away.