This content was generated using artificial intelligence based on publicly available information. It is provided for general informational purposes only and does not constitute legal, tax, immigration, or professional advice. Information may be incomplete or outdated. Always verify with official sources before making decisions.
Data Source: Safety, crime, and quality metrics are sourced from Numbeo, a crowd-sourced global database of reported data.
All scores are relative comparisons on a 0-100 scale, where 50 = global average. Higher scores mean better than average, lower scores mean worse than average.
Guyancourt offers a pragmatic, high-quality lifestyle for international professionals, functioning primarily as a strategic hub for those working in the surrounding tech and business corridors. With a notable expat presence, the area provides a reliable sense of community and well-integrated amenities, including dependable healthcare and efficient public transport links to Paris. It is an ideal base for families seeking a stable, suburban rhythm without sacrificing connectivity.
However, the experience is more functional than festive; you are trading the vibrant, high-energy atmosphere of central Paris for predictable convenience and safety. While the infrastructure is solid, the lifestyle leans heavily toward professional utility rather than cultural tourism.
Population
31,989
Area
2 km²
Density
18,707 per km²
Founded
-
Language
French
Distance to Coast
216 km
Districts & Neighborhoods in Guyancourt
Loading districts…
Climate & Weather in Guyancourt
Guyancourt has a **temperate oceanic climate (Köppen Cfb)** with mild summers, cool winters, and rainfall distributed throughout the year. Météo-France also classifies the commune as having an **altered oceanic climate**, consistent with the western Paris basin, where spring rainfall is relatively low and winter temperatures are cool. Current weather conditions are broadly consistent with this climate pattern, but long-term averages are what matter for seasonal climate planning.
Summer Average
22°C
Winter Average
5°C
Climate Type
Oceanic
Rainy Days
120
Sunny Days
170
Humidity
75%
Spring
March - May
8-17°C
Spring is cool to mild, with changeable weather and periodic rain. Temperatures rise steadily through the season, and cloudy days remain common.
Moderate rainfall
Summer
June - August
18-25°C
Summer is generally mild rather than hot, with comfortable daytime conditions and occasional warm spells. Rain can still occur, often as short showers or thunderstorms.
Moderate rainfall
Autumn
September - November
9-18°C
Autumn is cool and often damp, with increasing cloud cover and shorter days. Temperatures fall gradually, and rainy periods become more frequent.
Moderate rainfall
Winter
December - February
2-8°C
Winter is cold but usually not severe, with occasional frost and limited snowfall. Overcast skies and damp conditions are common.
Moderate rainfall
Loading Weather...
Air Quality
Guyancourt
Advantages
Guyancourt
Excellent school infrastructure
Abundant parks and green spaces
Rich cultural attractions nearby
Suburban tranquility with convenience
Strong community amenities
Disadvantages
Guyancourt
Limited higher education options
Minimal nightlife and entertainment
Suburban isolation from Paris
Few coworking spaces available
Safety & Security in Guyancourt
Overall Safety Score
Includes resilience and environmental factors
Moderate
55
/100
France Avg
55
Europe Avg
58
Worldwide Avg
56
Crime & Safety Metrics
Thermometer compares Guyancourt to France averages using different marker styles.Compare:
Guyancourt
France Average
Safety Index
0510
Moderate
Safety from Crime
0510
Moderate
Safe Alone (Day)
0510
Moderate
Safe Alone (Night)
0510
Low
Safety from Violent Crime
0510
Moderate
Safety from Property Crime
0510
Concerning
Environmental & Natural Hazard Risks
Resilience Score: 86/100
No data for Guyancourt — showing hazard indicators from nearby Clamart (~14 km).
