Heraklion is the largest city on Crete and is in the middle of the northern coast. The city has a population of 131.000 inhabitants (census 2001). Heraklion is the fourth largest in Greece, and has the largest port in Crete, as the largest airport (Nikos Kazantzakis International Airport). The town is also the commercial and scientific center of Crete.
All the information about crete's weather conditions
Here we have some information about the average of the maximum day temprature. It's important to know that this tempratures are not the daily picks. So on July it's possible to get tempratures for some days near 40°C (be prepared).
Summer in Crete (June, July, August)
Tempratures: 27 - 28 °C (average max day temprature)
Autumn in Crete (September, October, November)
Tempratures: 19 - 26 °C (average max day temprature)
Winter in Crete (December, January, February)
Tempratures: 14 - 15 °C (average max day temprature)
Spring in Crete (March, April, May)
Tempratures: 15 - 23 °C (average max day temprature)