Summer is the most popular time to explore the Hauts de France region, especially if you want to get on the water, but temperatures remain mild through spring and fall, too. Time your stay in Abbeville to visit the local market (Thursdays and Saturdays), when the town centre buzzes with activity. Camping season, as in the rest of France, runs from April through October, but there are still a few spots that welcome motorhome campers and caravanners year-round.