Arnasco ( in Ligurian: Arnasco ) is a municipality with 650 inhabitants (as at 31 December 2012) in the northern Italian region of Liguria. Politically it belongs to the province of Savona.


Arnasco is in the lower section of the ridge of the Castellermo, between Monte Monte Nero ( 858 meters), the Monte Croce di Arnasco ( 646 meters ) and the Rocca Liverna (551 meters). The community consists of three parts: Arnasco, Menosio and Bezzo. These are located at an altitude of 250 to 300 meters above sea level.

Arnasco belongs to the Comunità Montana Ingauna and is approximately 57 km from the provincial capital Savona.

According to the Italian classification with respect to seismic activity, the community of Zone 3 was assigned. This means that Arnasco is in a seismically active zone little.


The municipality is classified under climate category D, as the number of degree days has a value of 2006. This means that in Italy legally regulated heating season is between November 1 and April 15 for 12 hours per day.

Community partnerships

Arnasco maintains the following towns partnering:

  • United Kingdom Brading, UK, since 2004