(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.
The temperatures on the coast and in the islands will now be extremely comfortable. If youâre lucky, you might get to witness the â mattanza â or tuna harvest in the fishing towns all over the western part Sicily. Average daytime temperature 22Â°c | 72Â°f. Sea temperature 18Â°c | 64Â°f.