Overview: PortovenerePortovenere (Italy) is a place with a mild climate. The day temperatures range from 11 °C (52 °F) in January to 29 °C (84 °F) in July. The least rainy month in Portovenere is July with its 5 days of rain, the rainiest month is November, when it rains 11 days. Sea temperatures are in the following range: 13 °C (56 °F) in February to 25 °C (77 °F) in August. The highest night temperatures could be experienced in August with 19 °C (67 °F), the lowest in February with 4 °C (40 °F).