Climate
Río Gallegos logs 76 frost days a year to Rosario's 6 — Rosario wins by 70. Rosario also leads on outdoor-dinner months by 7.
Río Gallegos
Feels-like °C
Dinner outside
Rosario
Feels-like °C
Dinner outside
Air Quality
Río Gallegos averages 12.6 µg/m³ (moderate) PM2.5 annually versus Rosario's 12.6 µg/m³ (moderate) — Rosario breathes ~0% cleaner air (0.0 µg/m³ lower).
Río Gallegos
Rosario
PM2.5 annual average
WHO classification
City Scale
Both maps at the same real-world scale — 1 cm on either map is the same distance.
Río Gallegos (138K) and Rosario (1.2M) are 8.6x in population — Rosario is the larger metro, Río Gallegos the smaller; on land area Rosario spans roughly 6.9x more ground.
Rosario is roughly 7.7x the scale of Río Gallegos
Combined population & area comparison
RosarioRío GallegosCity Scale Rankings
Rosario1.2M8.6xRío Gallegos138K1xRosario199 km²6.9xRío Gallegos29 km²1xRío Gallegos
Rosario
Who Thrives Here
Rosario is the stronger fit for the sunshine lover. Both cities work well for the clean air seeker.
Also compared
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Berlin 
MiamiFrequently asked about Río Gallegos vs Rosario
▶How does the climate compare between Río Gallegos and Rosario?
▶Should I move to Río Gallegos or Rosario?
The best city depends on what matters to you
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