The weather in Paris is continental, which means that the winters are very cold, between 33,8 and 42,8 °F, and hot summers exceeding 77 °F. It is also a rainy destination so it is always advisable to carry an umbrella everywhere. Yet, there is a curious fact: August has the highest number of rainy days. Although summer is hot, it is not suffocating because Paris has a dry climate.
3 days minimum: Paris is a huge city. It has a lot of places to observe and visit. If you like city tourism, you'll have a great time. It also has a wide cultural offer, so it is worth taking time to get into a museum and stroll to discover all kinds of places that make this city a special destination.
Shops in Paris follow European time. Small shops tend to open at 09.00h and close at 18.00h or a little later. Some businesses also close for lunch, 12.00h to 2.00h.
Department stores, like Galleries Lafayette are open until 20.00h. Thursday is the day in which stores are opened for a little more, because it is the shopping day.