Weather and Seasons

Knowing the park’s seasonal weather variations will help you plan the perfect Yosemite vacation.

yosemite-heat-dehydration

Heat and Dehydration

Pay attention to the warning signs of dehydration and heat exhaustion, which can include thirst, dizziness, fatigue, nausea, headaches, muscle cramps, an increased pulse rate, and rapid, shallow breathing.

Yosemite Valley and the Half Dome in Winter

Winter Sightseeing in Yosemite

Winter and early spring are the only times to see a pair of fascinating natural phenomena in the Valley. Watch of video of winter moments.