Overview: VallettaValletta (Malta) in general has a hot climate. Temperatures during the day are in the range from 16 °C (61 °F) in February to 32 °C (89 °F) in August. Sea temperatures are in the following range: 15 °C (59 °F) in February to 26 °C (79 °F) in August. The highest night temperatures could be experienced in August with 23 °C (74 °F), the lowest in February with 10 °C (50 °F). The driest month is July with just 0 days of rain, on the contrary, the month when it rains the most is December with 10 days of rain.