The Sanctuaries are open all year round, but Lourdes is at its busiest during the Pilgrimage season between April and October. This is when there are regular masses at the Grotto and you will also have the opportunity to take part in the daily processions and ceremonies. The Baths also operate for longer hours during this period. Out of season Lourdes is very quiet with the majority of hotels and cafes closed for business.  Between May and September the average daytime temperature can vary between 17o – 28o centigrade, however it can get cool after sunset, and rain is not uncommon.