Paris logs 9 hot days a year to Rouen's 5 — Rouen wins by 4. Rouen also leads on frost days by 8.

Paris runs about $2,953/mo for a balanced lifestyle against Rouen's $2,059/mo — Rouen comes in $894 cheaper each month, roughly 43% less.

On mobility, Paris scores 4.6 vs Rouen's 2.6 (0–5 scale), with the biggest gap on flight connectivity. Rouen still holds an edge on car efficiency.

Paris's culture score of 4.7 sits well above Rouen's 3.3, with the biggest gap on arts & culture.

Paris's nature & outdoors score of 4.7 sits well above Rouen's 3.7, with the biggest gap on rock climbing. Rouen still holds an edge on sea access.

Rouen's safety score is ~1.6× Paris's — in the upper band, while Paris lands below average, with the biggest gap on road safety. Paris still holds an edge on flooding safety.

Paris's career score of 4.9 sits well above Rouen's 2.8, with the biggest gap on economic scale.

Paris's social & community score of 3.1 sits well above Rouen's 2.6, with the biggest gap on expat-first community. Rouen still holds an edge on local-first community.

On food & dining, Paris scores 4.2 vs Rouen's 2.4 (0–5 scale), with the biggest gap on restaurant variety.

On family, Paris scores 4.1 vs Rouen's 2.5 (0–5 scale), with the biggest gap on international schools.

Paris and Rouen score neck-and-neck on healthcare (3.7 vs 3.7, 0–5 scale).

Paris averages 10.1 µg/m³ (moderate) PM2.5 annually versus Rouen's 8.8 µg/m³ (good) — Rouen breathes ~12% cleaner air (1.3 µg/m³ lower).

Who Thrives Here