All year round, Montpellier and the surrounding region have an inexhaustible wealth of opportunities available for people staying there: hundreds of outings around town and in the country, beaches five minutes away, the Camargue and the Cévennes less than an hour away, etc...
why not spend a morning on the Mediterranean coast, unless you'd prefer to spend a day or more exploring the attractions of the hinterland. It's your choice: go walking in Cathar country, explore the Hérault Gorge, visit the Pont du Gard or the Cité de Carcassonne...
To give yourself a foretaste of what the region has to offer,
have a look at the Montpellier Tourist Office site.