Climate twin
Places with weather like Boulogne-Billancourt
Île-de-France, France
Boulogne-Billancourt has a near-identical climate twin abroad: Köln, Germany, 87% alike.
Around the world
The closest match in each country, outside France.
KölnNorth Rhine-Westphalia, Germany
Highs within 1.7°F (0.9°C) · lows within 1.5°F (0.9°C) · 25% more rain
410 km away · Compare side by side
87%
alike
BrusselsBrussels Capital, Belgium
Highs within 1.6°F (0.9°C) · lows within 1.7°F (0.9°C) · 29% more rain
270 km away · Compare side by side
87%
alike
LondonEngland, United Kingdom
Highs within 2.0°F (1.1°C) · lows within 2.1°F (1.2°C) · similar rainfall
342 km away · Compare side by side
85%
alike
MaastrichtLimburg, Netherlands
Highs within 2.1°F (1.1°C) · lows within 2.9°F (1.6°C) · 23% more rain
333 km away · Compare side by side
83%
alike
Gasteiz / VitoriaBasque Country, Spain
Highs within 2.0°F (1.1°C) · lows within 2.8°F (1.6°C) · 25% more rain
766 km away · Compare side by side
81%
alike
Elsewhere in France
One city per state or province, at least 150 km away.
Le MansPays de la Loire, France
Highs within 1.0°F (0.6°C) · lows within 1.4°F (0.8°C) · 11% more rain
177 km away · Compare side by side
90%
alike
ToursCentre-Val de Loire, France
Highs within 1.4°F (0.8°C) · lows within 1.1°F (0.6°C) · similar rainfall
197 km away · Compare side by side
90%
alike
RennesBrittany, France
Highs within 1.6°F (0.9°C) · lows within 1.5°F (0.9°C) · 21% more rain
300 km away · Compare side by side
87%
alike
How twins are matched
Each city’s twelve monthly highs, lows and rainfall totals (1991–2020 climate normals) are compared with every other city’s. Each year starts at its coldest month, so seasons line up across hemispheres: Boulogne-Billancourt’s winter is matched against a Southern Hemisphere city’s winter. 100% would be an identical year. Cities within 150 km are left out, since they share the same weather.
Boulogne-Billancourt’s full climate, month by month · Find cities that fit the weather you like