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Ýdra
City in Attica, Greece
Overview
Ýdra, also known as Hydra, is a car-free island in the Saronic Gulf, renowned for its stone mansions, lively artistic scene, and captivating harbor. With no motor vehicles allowed, donkeys and water taxis are the main forms of transportation, lending the town an old-world Mediterranean charm.
Geographic Context
Jurisdiction
Greece
Administrative Region
Attica
Population
—
Time Zone
Europe/Athens
Coordinates
37.35°, 23.47°
Key Metrics
Safety Score
92
Female Safety
80
LGBTQ+ Safety
65
Traffic Safety
95
Food Safety
95
Monthly Cost
$2,275
Local Cost
$1,640
Local Income
$1,050
Cashless
55
English
60
Temperature
19.1°C
Summer Avg
25.8°C
Winter Avg
13.2°C
Record High
38.7°C
Record Low
2.9°C
Humidity
72%
Precipitation
577 mm
Internet Speed
34 Mbps
Upload
4 Mbps
Latency
30 ms
City Vibrancy
—
Coworking
0
Cafes
0
Nightlife
0
Parks
0
Transport
0
Walk Score
0
Footways
—
Airport
PKH
Distance
29 km
Explore
Frequently Asked Questions
Data sources
Source-backed data
NASA POWER - Climate normals and monthly weather measurements rendered as city weather metrics. Updated 2026-03-22.
World Air Quality Index - Latest available city-level air quality station measurement. Updated 2025-12-05.
Ookla Open Data - Internet speed aggregates for 2024Q3 from 136 tests. Updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Updated 2025-12-09.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Updated 2025-12-06.
Oyster List city price model - City price estimates calibrated from local price surveys and jurisdiction-level cost signals. Updated 2026-01-14.
Estimated data
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores are model-assisted estimates derived from source-backed country and city signals. Confidence 68/100.
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