We are all from different places in the world.
Here in the state of Michigan, in the midwest of the United State, the first day of summer is technically in June.
However, most people begin the summer season on Memorial Day Weekend, which is the last weekend of May.
Most people get an extended holiday at this time, and begin traveling and camping.
When does summer 'officially' begin where you are from?
Summer in Iran
Summer begins with slight decreasing of precipitation. At June temperatures are only higher than May. June is the hottest and driest month of a year. Rains are rare.