Geography and Climate 101

If you're not sure whether Sardinia is worth traveling to, stop, and think about this: It's an island. Already you cannot go wrong with this region in Italy. Flanked by the sparkling Mediterranean and the Tyrrhenian sea, Sardinia is easily the second largest island in the area, and it governs independently from the rest of Italy.
Sardinia spans about 24 090 km², including it's offshore islands. Its largest city is Cagliari (which interestingly means "Castle" in Sardinia). Some other provinces in Sardinia include: Carbonia Iglesias, Medio Campidano, Nuoro, ogliastra, olbia Tempio, Oristano, and finally Sassari. But here's another fact that I'm sure will peak the attention of anyone: Sardinia is known to have beautiful, clear turquoise coastlines. Imagine standing on high and rocky cliffs overlooking white beaches. Sardinia's rocky coastline is due to tectonic and large volcanic activity during the Cenozoic era. But in general, the west and southwest coasts are not as rocky as the other sides. 

 Sardinia is well known for having a summer that spans six months (from May to October). Although there still exists a mild wind that blows from the northwest. Sardinia's climate is greatly affected by its location in the Mediterranean. Wind masses from the Atlantic, Arctic and Africa also have an affect on Sardinian climate. Although it is known to be very warm during the summer, it also can get very cold, usually higher above land, on the mountains. Locals can even see, when weathers go below zero, white caps on Gennargentu (the main mountain of Sardinia).  

Overall, the weather is not to hot or too cold; there's a little something to fit everyone's needs.