In a general climate comparison, Croatia is not hotter than Greece. While both countries share a beautiful Mediterranean coastline, Greece is situated further south, resulting in higher average temperatures year-round. On average, Greece maintains an annual temperature of about 18°C (64°F), whereas Croatia averages around 13°C (55°F). During the peak of summer, Greece's hottest month (July) sees average highs of 33°C (91°F), while Croatia’s peak in August typically reaches a maximum of 30°C (86°F). Furthermore, Croatia tends to be significantly wetter, receiving more than double the annual rainfall of Greece. If you are looking for the most intense heat and reliable sunshine, Greece is the warmer choice, while Croatia offers a slightly milder, albeit still very warm, summer experience perfect for those who find extreme heat uncomfortable.