Over the past 10 years, Florence Marathon runners have faced temperatures ranging from 4\u00b0C (38\u00b0F) on cooler years to 13\u00b0C (55\u00b0F) in warmer editions. The median temperature of 9\u00b0C (49\u00b0F) puts this race in the favorable category for running conditions.
Wind speeds average 12 km/h during race hours, with peak gusts reaching 20 km/h in challenging years. Humidity sits around 73%, and there is a 20% chance of rain on race day.
These conditions translate to an estimated pace impact of +1.6% compared to ideal running conditions. For a 4-hour marathoner, that means roughly 4 minutes slower than a perfect-weather day.