Overview: Sanary-sur-Mer Sanary-sur-Mer (France) in general has a hot climate. The day temperatures range from 13 °C (55 °F) in January to 29 °C (83 °F) in July. The least rainy month in Sanary-sur-Mer is July with its 2 days of rain, the rainiest month is November, when it rains 8 days. Temperatures during the night go from 5 °C (41 °F) in February to 20 °C (67 °F) in August. Sea temperatures are in the following range: 13 °C (55 °F) in February to 23 °C (73 °F) in August.