(Äp'É-nÄf'rÄ­n) A hormone that is secreted by the adrenal gland in response to physical or mental stress, as from fear, and is regulated by the autonomic nervous system. The release of epinephrine causes an increase in heart rate, blood pressure, and respiratory rate.
The average maximum daytime temperature in Sicily in December is a comfortable 16Â°C (61Â°F), while the average minimum night-time temperature is a cool 11Â°C (52Â°F). On average 90 mm (3.5 inches) of rain normally falls in Sicily during December with rain falling on 12 days of the month.
Before you plan a day (or a week) at the beach or in the mountains, get the current weather conditions and forecast. (The report will open in a new browser window or tab.) An accurate precipitation map follows below. Palermo Weather Regional capital and Sicily's largest urban area. Sunny Palermo typically has less rainfall annually than any other large city in Italy. Catania Weather In the shadow of Mount Etna, this region sees more precipitation than other areas, but also some occasional volcanic ash. Messina Weather A gateway to Sicily if you arrive by land.