Best season to visit Janardhana Swamy Temple while passing through Varkala

The Janardhana Swamy Temple in Varkala is open 24 hours, so timing isn’t a problem for a quick visit. It’s only about 1 km from Varkala Beach, so you can stroll there before or after. Historically, the temple is over 2000 years old and attracts pilgrims and tourists alike. When would be the best time to drop by if I’m just passing through? And should I stay overnight to catch any evening rituals?