Average Temperatures in Florence, Tuscany, Italy. 1  The annual average temperature in Florence, Tuscany, Italy is mild at 14.6 degrees Celsius (58.3 degrees Fahrenheit).  Average monthly temperatures vary by 18.4 C (33.1F) which is a slightly low range.
For the novel, see Heartburn (novel) . Heartburn, also known as pyrosis, cardialgia, or acid indigestion, is a burning sensation in the chest, just behind the breastbone or in the epigastrium, the upper central abdomen. The pain often rises in the chest and may radiate to the neck, throat, or angle of the jaw.
Heartburn is felt when stomach acid flows back up into the esophagus (food pipe or gullet), down which food moves from the mouth to the stomach. At least 15 million Americans experience heartburn - the symptom of acid reflux - every day, according to estimates from the American College of Gastroenterology.