Oslo or Tallinn: which is better?
World city: head-to-head comparison
Oslo wins on more indicators: 2 of 4 against 0.
- Climate and risks: Oslo 2:0
All indicators weigh the same. This is a score based on data, not advice on where to live: different people have different circumstances.
Oslo
Indicator
Tallinn
Population
no winnerCity population
neutral indicator: higher does not mean better
580,000 people
GeoNames snapshot (all-the-cities 3.1.0 package, 2022), exact date not stated
394,024 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
889,573 people
2025
449,861 people
2025
Urban centre area
neutral indicator: higher does not mean better
244 km²
2025
121 km²
2025
Urban centre density
neutral indicator: higher does not mean better
3,646 people per km²
2025
3,718 people per km²
2025
Urban centre population growth, 2015–2025
neutral indicator: higher does not mean better
11.6 %
2015–2025
13.4 %
2015–2025
Climate and risks
Better: Oslo (2 : 0)Hot days (max ≥ +30 °C)
tie
3 days per year
2016-2025
3 days per year
2016-2025
Frost days (min ≤ −10 °C)
lower is better
✓11 days per year
2016-202518% lower
✗13 days per year
2016-202521% higher
Severe frost (min ≤ −20 °C)
lower is better
✓0.1 days per year
2016-202575% lower
✗0.4 days per year
2016-2025300% higher
Ice days (max ≤ 0 °C)
neutral indicator: higher does not mean better
38 days per year
2016-2025
39 days per year
2016-2025
Heating degree days
neutral indicator: higher does not mean better
3,777 °C·days per year
2016-2025
3,974 °C·days per year
2016-2025
Cooling degree days
neutral indicator: higher does not mean better
90 °C·days per year
2016-2025
94 °C·days per year
2016-2025
Rainy days
neutral indicator: higher does not mean better
119 days per year
2016-2025
130 days per year
2016-2025
Annual precipitation
neutral indicator: higher does not mean better
867 mm per year
2016-2025
710 mm per year
2016-2025
Daylight on December 21
neutral indicator: higher does not mean better
5.9 hours
December 21 and June 21 (does not depend on the year)
6.0 hours
December 21 and June 21 (does not depend on the year)
Daylight on June 21
neutral indicator: higher does not mean better
18.8 hours
December 21 and June 21 (does not depend on the year)
18.7 hours
December 21 and June 21 (does not depend on the year)
Air humidity
no data for one of the places
76 %
2021-2025
no data
Muggy days (dew point ≥ +20 °C)
no data for one of the places
0 days per year
2021-2025
no data
Distance to the sea
neutral indicator: higher does not mean better
18 km
2006-2025
6 km
2006-2025
Earthquakes M4.5+ within 100 km
tie
0.00 per year
2006-2025
0.00 per year
2006-2025
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: Oslo, Tallinn.