Other facts from our historical weather data: Which is the hottest month in Makkah? June has an average maximum temperature of 43°C (109°F) and is the hottest month of the year. Which is the coolest month in Makkah? The coolest month is January with an average maximum temperature of 29°C (84°F). Which is the wettest month in Makkah? January tops the wettest month list with 37mm (1.5 in) of rainfall. Which is the driest month in Makkah? July is the driest month with 0mm (0 in) of precipitation. Which is the sunniest month in Makkah? June is the sunniest month with an average of 321 hours of sunshine. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.