Althen-des-Paluds (French pronunciation: [altɛ̃ de paly]; Provençal: Lei Palús or Alten) is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in southeastern France.

The climate is of Mediterranean type and is characterized by rather hot and dry summers and soft winters.

The record of temperature since the existence of the INRA' station is of 40,5 °C at the time of the European heat wave of 2003 on August 5 and -12,8 °C on January 5, 1985.

The weather statements are done with Agroparc office of Avignon.

Monteux Bédarrides Entraigues-sur-la-Sorgue Velleron Le Thor Saint-Saturnin-lès-Avignon Althen-des-Paluds is twinned with Monte Carlo, Monaco.