The best time to visit Astene is typically from late spring to early autumn, specifically from May to September, when the weather is most pleasant for outdoor activities.During these months, you'll find warmer temperatures and less rainfall, making it ideal for exploring the Lys region, cycling along the river, or enjoying the local cafes and terraces. July and August are the warmest months, with average temperatures often reaching into the low 20s Celsius, great for leisurely boat trips on the Lys.For travellers who prefer slightly cooler weather and fewer crowds, May, June, and September are excellent choices. The landscape is lush, and you can still enjoy long daylight hours.