Malta's climate is typical Mediterranean strongly influenced by the sea surrounding the island, with hot, dry summers, warm and sporadically wet autumns, and short, cool winters with adequate rainfall.
The monthly mean air temperature ranges from 12.4 degrees C during the winter period to 26.3 degrees C during the summer period. The annual mean being 18 degrees C. July is on average the hottest month, however you are to expect very high temperatures in August (the maximum temperature ever recorded was of 43.8 on August 9th of 1999) and September too. February is usually the coldest month (the minimum temperature ever recorded was of 1.4 degrees C on 29th January 1981) .
Winds are strong and frequent; the most common are the cool north-westerly (majjistral), the dry north-easterly (grigal, or gregale), and the hot humid south-easterly (xlokk, or sirocco). Occasionally it gets quite windy and usually lasting for up to 3 days with strong gale force winds blowing either from the northwest or from the northeast bringing days of miserable stormy weather.
Rainfall patterns show that the average total rainfall of the Maltese Islands is 553.1 mm. The month with the highest precipitation is December, amounting to 20.3% of the total annual precipitation. The summer period between June and August represents barely 2% of the total rainfall. The period October-December amounts to almost 51% of the total annual precipitation, followed by the periods January till March and April till September, representing 35% and 14% of the total precipitation respectively. October shows the highest variability throughout the entire year that ranges from a minimum of 14.5 mm to a maximum of 222.6 mm of rainfall.
The relative humidity is consistently high and rarely falls below 40%.
Check out Malta's Current Weather Conditions