Osaka or Rome: which is better?
World city: head-to-head comparison
Osaka and Rome are even: 1 : 1 across 2 indicators.
- Climate and risks: tie 1:1
All indicators weigh the same. This is a score based on data, not advice on where to live: different people have different circumstances.
Osaka
Indicator
Rome
Population
no winnerCity population
neutral indicator: higher does not mean better
2,592,413 people
GeoNames snapshot (all-the-cities 3.1.0 package, 2022), exact date not stated
2,318,895 people
GeoNames snapshot (all-the-cities 3.1.0 package, 2022), exact date not stated
Urban centre population
neutral indicator: higher does not mean better
12,653,994 people
2025
2,476,089 people
2025
Urban centre area
neutral indicator: higher does not mean better
2,212 km²
2025
467 km²
2025
Urban centre density
neutral indicator: higher does not mean better
5,721 people per km²
2025
5,302 people per km²
2025
Urban centre population growth, 2015–2025
neutral indicator: higher does not mean better
-8.0 %
2015–2025
3.6 %
2015–2025
Climate and risks
Tie (1 : 1)Hot days (max ≥ +30 °C)
no data for one of the places
no data
76 days per year
2016-2025
Frost days (min ≤ −10 °C)
no data for one of the places
no data
0 days per year
2016-2025
Severe frost (min ≤ −20 °C)
no data for one of the places
no data
0.0 days per year
2016-2025
Ice days (max ≤ 0 °C)
no data for one of the places
no data
0 days per year
2016-2025
Heating degree days
no data for one of the places
no data
1,250 °C·days per year
2016-2025
Cooling degree days
no data for one of the places
no data
942 °C·days per year
2016-2025
Rainy days
no data for one of the places
94 days per year
2016-2025
no data
Annual precipitation
no data for one of the places
1,500 mm per year
2016-2025
no data
Daylight on December 21
neutral indicator: higher does not mean better
9.8 hours
December 21 and June 21 (does not depend on the year)
9.1 hours
December 21 and June 21 (does not depend on the year)
Daylight on June 21
neutral indicator: higher does not mean better
14.5 hours
December 21 and June 21 (does not depend on the year)
15.2 hours
December 21 and June 21 (does not depend on the year)
Air humidity
no data for one of the places
no data
68 %
2021-2025
Muggy days (dew point ≥ +20 °C)
no data for one of the places
no data
9 days per year
2021-2025
Distance to the sea
neutral indicator: higher does not mean better
12 km
2006-2025
25 km
2006-2025
Earthquakes M4.5+ within 100 km
lower is better
✗1.15 per year
2006-202535% higher
✓0.85 per year
2006-202526% lower
Strongest earthquake in the period
lower is better
✓5.8 magnitude
2006-20258% lower
✗6.3 magnitude
2006-20259% higher
A winner is named only for indicators with a known “better / worse” direction. Population and other neutral indicators are shown without a winner. Outdated and missing values are not counted. Details for each place: Osaka, Rome.