Overview: LisbonLisbon (Portugal) is a place with a hot climate. Temperatures during the day are in the range from 15 °C (58 °F) in January to 28 °C (82 °F) in August. Temperatures during the night go from 8 °C (47 °F) in January to 18 °C (65 °F) in August. The least rainy month in Lisbon is July with its 1 day of rain, the rainiest month is November, when it rains 11 days.