The Paris Basin has a cool temperate oceanic climate, with average temperatures of 5°C in winter and 16°C in summer. Annual rainfall is around 800mm. Inland, it experiences a cool temperate continental climate with 700mm rainfall, mostly from convectional sources.
This moderate climate is ideal for agriculture, particularly grain farming and wine growing, as seen in the Champagne region
Chalk soils: Found in areas like Champagne, ideal for vine growing.
Clay soils: Suited for dairy farming.
Limon soil: Formed during the Ice Age, it is fertile and dominates much of the Basin, supporting large-scale cereal production.
The Paris Basin is composed of sedimentary rock that formed around 400 million years ago. It is shaped like a bowl, surrounded by escarpments and flat in the centre. The main rivers, such as the Seine and Loire, flow through this flat landscape, which facilitates transportation and agriculture. The structure includes alternating layers of harder and softer rock, creating features like the Armoricain plateau and the escarpments.
The Paris Basin is home to 17 universities and is a major hub for French research, with 85% of French research occurring here. It also has high-tech industrial parks, and a large educated workforce with 21 million people, 27.5% of whom work in the secondary sector.
Deindustrialisation in the Paris Basin occurred between 1975 and 2005 due to high wages, land costs, and traffic congestion. Many industries moved to peripheral regions, contributing to a 10.5% unemployment rate in France by 2015. Over 300,000 jobs were lost in the Basin in the past seven years.
Tourism is a major sector in the Paris Basin, with 70% of the population employed in the tertiary sector. Paris is highly accessible and hosts world-famous attractions such as Notre Dame, the Eiffel Tower, Disneyland, and luxury shopping districts. Paris is the most visited city in the world, with 30 million visitors annually, and 7% of Parisians work in tourism.
Paris has a radial transport network with flat topography, allowing easy construction. High-speed TGV trains travel at 300 km/h, connecting Paris to major cities like Brussels, London, and Cologne. Around 3 million people commute in Paris daily using the metro, airports, and roads. One-third of commuters still rely on cars, using the Périphérique ring road