In which month is the sun at its highest position?

The sun reaches its highest position in the sky during June due to the summer solstice, which occurs around June 21st in the Northern Hemisphere. This event marks the longest day of the year and the point where the sun is directly overhead at noon at the Tropic of Cancer. As a result, the sun appears highest in the sky during this month when the angle of sunlight is optimal, leading to more direct exposure and increased ultraviolet radiation. This is particularly significant for understanding sun exposure and tanning, as it impacts both the potential for tanning and the risk of overexposure to UV rays.