Nantes logs 15 frost days a year to Paris's 24 — Nantes wins by 9. Paris also leads on outdoor-dinner months by 1.

Nantes runs about $2,157/mo for a balanced lifestyle against Paris's $2,953/mo — Nantes comes in $796 cheaper each month, roughly 37% less.

On mobility, Paris scores 4.6 vs Nantes's 3.2 (0–5 scale), with the biggest gap on flight connectivity. Nantes still holds an edge on car efficiency.

Paris's culture score of 4.7 sits well above Nantes's 3.5, with the biggest gap on history museums.

Paris's nature & outdoors score of 4.7 sits well above Nantes's 4.0, with the biggest gap on rock climbing. Nantes still holds an edge on sea access.

Nantes's safety score is ~1.8× Paris's — in the upper band, while Paris lands below average, with the biggest gap on road safety.

Paris's career score of 4.9 sits well above Nantes's 3.3, with the biggest gap on career opportunities.

Paris's social & community score of 3.1 sits well above Nantes's 2.8, with the biggest gap on expat-first community. Nantes still holds an edge on expat integration experience.

On food & dining, Paris scores 4.2 vs Nantes's 2.6 (0–5 scale), with the biggest gap on brunch availability.

On family, Paris scores 4.1 vs Nantes's 2.7 (0–5 scale), with the biggest gap on international schools.

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

Nantes averages 8.6 µg/m³ (good) PM2.5 annually versus Paris's 10.1 µg/m³ (moderate) — Nantes breathes ~14% cleaner air (1.4 µg/m³ lower).

Who Thrives Here