* More direct: The Earth's tilt causes the sun's rays to strike the Northern Hemisphere at a more direct angle during the summer months. This means the rays are concentrated over a smaller area, delivering more energy.

* Stronger: Due to the direct angle, the sunlight is more intense, resulting in higher temperatures.

* Longer: The days are longer in the summer, meaning the Earth receives sunlight for a greater duration, contributing to the warmer temperatures.

* Higher in the sky: The sun's position in the sky is higher during summer, causing the sun's rays to travel through less atmosphere, leading to less scattering and absorption of light. This results in a brighter and more intense sun.

These factors combine to create the characteristic hot and sunny weather of summer.