Calais

Summer (June to August):

• Summers in Hauts-de-France are mild and relatively cool compared to other regions in France.
• Daytime temperatures average around 20-25°C (68-77°F), making it pleasant for outdoor activities and exploration.

Fall (September to November):

• Fall brings cooler temperatures, with daytime highs ranging from 10-15°C (50-59°F).
• It's a beautiful time to visit as the foliage changes, offering scenic landscapes.

Winter (December to February):

• Winters in Hauts-de-France are chilly and can be damp.
• Daytime highs range from 5-7°C (41-45°F), and some areas may experience snowfall, especially in the northern parts.

Spring (March to May):

• Spring is a refreshing time with blooming flowers and rising temperatures.
• Daytime highs range from 10-15°C (50-59°F), making it suitable for outdoor activities.