February in Sliema is the cloudiest and the coldest month of the year. In February, the weather in Sliema is typically warm. Average daily high temperature in February is about 15 degrees above zero. On average, Sliema has 16 sunny, 8 rainy, and 5 partly cloudy days in February. The rains are usually moderate. February as well as January is considered the most uncomfortable time to visit Sliema.