For pleasant weather and a full range of activities, the best time to go to Poitiers is from late spring to early autumn, specifically May through September.During these months, you'll experience warmer temperatures and more sunshine, which is ideal for exploring the city's historic sites and enjoying outdoor activities. The summer months, July and August, are particularly popular, with many local festivals and events taking place. However, they can also be the busiest, so booking accommodation and popular attractions in advance is a good idea.If you prefer to avoid the peak crowds while still enjoying agreeable weather, May, June, and September are excellent choices. The temperatures are still comfortable for walking around, and the city is generally less crowded, allowing for a more relaxed experience.Conversely, the winter months, from November to March, are much cooler and often damp.