Over the past 10 years, Beirut Marathon runners have faced temperatures ranging from 19\u00b0C (66\u00b0F) on cooler years to 26\u00b0C (80\u00b0F) in warmer editions. The median temperature of 23\u00b0C (73\u00b0F) puts this race in the challenging category for running conditions.
Wind speeds average 9 km/h during race hours, with peak gusts reaching 18 km/h in challenging years. Humidity sits around 56%, and there is a 10% chance of rain on race day.
These conditions translate to an estimated pace impact of +6.9% compared to ideal running conditions. For a 4-hour marathoner, that means roughly 17 minutes slower than a perfect-weather day.