The climate of Aix-en-Provence is generally mild, and can be defined as transitional Mediterranean, with relatively mild winters and hot, sunny summers.
The city is located in southern France, about 30 km (18 miles) north of Marseille.
The average temperature of the coldest month (January) is of 6.2 °C (43 °F), that of the warmest month (July) is of 23.6 °C (74 °F). Here are the average temperatures.
Aix-en-Provence - Average temperatures
Min (°C)114610141716131052
Max (°C)111216182327313026211512
Min (°F)343439435057636155504136
Max (°F)525461647381888679705954

Precipitation amounts to 585 millimeters (23 inches) per year: so, it is at an intermediate level. It ranges from 15 mm (0.6 in) in the driest month (July) to 85 mm (3.3 in) in the wettest (September). Here is the average precipitation.
Aix-en-Provence - Average precipitation

On average, there are around 2,860 sunshine hours per year: the city, like in general the south of France, is very sunny. Here are the average sunshine hours per day.
Aix-en-Provence - Sunshine


Best Time

The best time to visit Aix-en-Provence is spring, from mid-April to mid-June. September is also a good month, but sometimes it can rain a lot, especially in the second half of the month. Summer, from mid-June to August, can be hot, even though it's the best time for those who also want to go to the beach. Winter is generally mild, but it can sometimes get cold and it can rain.