In March, there are hints of warm weather and blossoms. This is a great time to visit because the city is still a little quiet. I have seen snow in March so you just never know. Magnolias are the first to blossom and you can find them outside of Hôtel de Ville, Palais Royal and in The Tuileries outside the Louvre. You can refer to this blog post for where to see Paris in Bloom.
Last March, Paris had some warm days followed by my visit which was cold and wet. Prepare to bring a warm coat and scarf. I had a leather coat that worked for the weather but I could have brought my Sézane coat or a trench and it would have worked too.
Read a book in Parc Monceau. This is one of my favorite off the beaten path spots in Paris. There are a few places to spot blossoms including apple blossoms and magnolias.
Book a bike tour with Fat Tire Tours. I am going on the Versailles VIP Tour in May. This is a great way to have access to different parts of the city and learn about local spots in Paris.
If it rains, book high tea at The Bristol Hotel. You won’t leave hungry and the people watching will be just as good as an outdoor café.
If you are only in Paris for a short time, I highly recommend getting the Paris Pass. This will help you skip the line at a good amount of Paris Museums including Versailles. Time is limited in Paris and this will help maximize your time, plus it saves you money!
P.S. Check out When to Visit Paris in 2020, Fall is a beautiful time to visit.