Aix-en-Provence is situated in a plain overlooking the Arc, about a mile from the right bank of the river.
The city slopes gently from north to south and the Montagne Sainte-Victoire can easily be seen to the east. Aix's position in the south of France gives it a warm climate. It has an average January temperature of 5°C and a July average of 22°C. It has an average of 300 days of sunshine and only 91 of rain. While it is partially protected from the Mistral, Aix does occasionally suffer from the cold gusty conditions it brings.