Most of the year, the coastline enjoys a mild and sunny Trieste‘s climate. In winter, it rarely freezes, though it can rain quite a lot in March-April and October-November. One important reason why Trieste’s climate is beneficial, is that it is seldom, or never, cold and wet at the same time. When the weather is cold, it is with north wind, and the air is dry. When the air is moist, south wind prevails, and the temperature is mild. Sunscreen is a necessity in the hot, dry Mediterranean summer.
Average highs rise to around 80 F (27 C) by June, July and August, the warmest months. Heat waves can send the mercury into the 90s (32 C), although stifling heat is rare, thanks to the cooling effect of the sea breeze.
Autumn has generally pleasant temperatures, but rainfall begins to pick up markedly. October and November are normally the rainiest months of the year. Winters are generally mild and sunny.
This pleasant weather on the Mediterranean is sometimes interrupted by very changeable cold and blustery weather brought by a northerly wind called the Mistral in French Provence and Bora on the Adriatic.
The Northern wind can bring unseasonably cold weather on the Mediterranean for a few days in Winter and early spring.
Trieste is one big, open-air museum. Ancient Roman buildings are interspersed with beautiful eighteenth-century ones, Austrian-style landscapes, churches of all dominations, Art Nouveau facades, rural towns and villages such as Muggia and those on the upland plains (see Destination Guide).
Trieste is also the city of historical cafes, of science and literature (it is home to favoured haunts of James Joyce, Saba and the contemporary writer Claudio Magris), of carefree Sundays spent in the beautiful Carso.