Oristano

Article

January 19, 2022

Oristano (AFI: / oriˈstano /; Aristanis in Sardinian) is an Italian town of 30 618 inhabitants, capital of the province of the same name, located in central-western Sardinia. It is located in the northern part of the Campidano plain, in the region called Campidano di Oristano. Provincial capital since July 16, 1974, the city has an ancient history; of early medieval origin, it was for a long time the capital of the Giudicato of Arborea.

Physical geography

Territory

Oristano is located on the central-western coast of Sardinia, facing the gulf of the same name at the mouth of the Tirso.

Climate

The gulf, approximately oval in shape, is closed by Capo Frasca to the south and Capo San Marco to the north. Oristano therefore remains quite exposed to westerly winds. The dominant wind is the mistral, which blows from the NW and reaches storm intensity for a few days a year, with gusts exceeding 100 km / h on Capo Frasca. These events arrive relatively dampened in Oristano (around 80 km / h) thanks to the moderate shielding of the two heads, whose maximum altitude is 80 meters. The major reliefs in the area are Montiferru to the N (1050 m a.s.l.) and Mount Arci to the East (815 m a.s.l.), too far away to provide adequate shelter from the north and east. The city therefore remains exposed to all quadrants, in particular to the sirocco which, blowing from the south east, can freely cross the entire Campidano plain from Cagliari to Oristano. Of the Campidano plain, Oristano occupies the NW strip, which is the most fertile thanks to the fine sediments carried by the Tirso river, on whose left bank Oristano rests at 5 meters above sea level. The Tirso is the longest river in Sardinia, it crosses it in the SW direction along the wide valley of the Goceano to flow into the Gulf of Oristano, about 4 km as the crow flies from the city. The climate, temperate in the middle latitudes, has a dry and hot summer season and a cool and rainy winter (Mediterranean climate). The intermediate seasons have mild and pleasant temperatures. Oristano is characterized by high humidity rates, which make it a very humid city, especially in summer. Despite this, it is frequently ventilated thanks to the presence of sea breezes that mitigate the heat in summer. The rainy season is concentrated between October and March, while the average rainfall is 580 mm / year. Sometimes the dense mists common in the middle Tirso valley manage to penetrate the plain, reaching the city. Winter frost is not uncommon, especially in the suburbs of the city where, in freezing winter nights, the mercury column manages to go a few degrees below zero.

Climatological data Capo Frasca (1971-2000)

Although it is about 18 km away as the crow flies and is located in the province of Southern Sardinia, the reference station for the province of Oristano is located in Capo Frasca which, together with Capo San Marco, form the Gulf of Oristano. Being located one step away from the sea, the minimum temperature values ​​in the winter months (significantly higher than in the inner city) and the maximum summer temperatures are affected above all, definitely mitigated by the immediate proximity to the sea. Based on the climatic averages of the 1971-2000 period, the average temperature in the coldest month, February, is +10.4 ° C, while that of the hottest month, August, is +25.0 ° C; on average there are zero days of frost per year and 21 days with a maximum temperature equal to or higher than +30 ° C. The extreme temperature values ​​recorded in the same thirty years are −4.8 ° C in January 1981 and +41.6 ° C in August 1999. Average annual rainfall is 529 mm, distributed on average over 71 rainy days, with a minimum in summer and a moderate peak in autumn. The annual average relative humidity records the value of 81% with a minimum of 78% in June, in July

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