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Rosny-sur-Seine
City in Île-de-France, France
Overview
Rosny-sur-Seine is a picturesque small town along the Seine River, west of Paris in Île-de-France. Known for its tranquil neighborhoods, historic churches, and local markets, it offers a welcoming atmosphere for visitors escaping the bustle of the capital.
Geographic Context
Jurisdiction
France
Metropolitan Region
Île-de-France
Population
7,041
Time Zone
Europe/Paris
Coordinates
49.00°, 1.63°
Key Metrics
Safety Score · estimate
78
Female Safety
80
LGBTQ+ Safety
80
Traffic Safety
82
Food Safety
97
Monthly Cost · estimate
$1,883
Local Cost
$1,210
Local Income
$2,100
Cashless
75
English
40
Temperature
10.7°C
Summer Avg
18.1°C
Winter Avg
3.5°C
Record High
38.1°C
Record Low
-12.1°C
Humidity
82%
Precipitation
672 mm
Internet Speed
275 Mbps
Upload
258 Mbps
Latency
13 ms
City Vibrancy
6
Coworking
0
Cafes
1
Nightlife
1
Parks
4
Transport
100
Walk Score
100
Footways
213.0
Airport
EVX
Distance
30 km
Explore
Data sources
Source-backed data
World Air Quality Index - Latest available city-level air quality station measurement. Record updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Record updated 2025-12-07.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Record updated 2025-12-06.
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
Oyster List city price estimates - Price origins are unverified. Available generation methods include AI estimates; stored records do not identify a survey, observation period, or model for each price. Record updated 2026-01-14.
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores include model-assisted estimates. Stored records do not identify supporting observations for each score. Model-reported confidence: 68/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.
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