The weather is beautiful in the Grand Circle region and the water at Lake
Powell is surprisingly warm for most of the seasons. It can get rather hot in
July and August, so you may want to schedule your vacation for the milder months
of May, June or September.
Springtime (March, April & May) can be
windy and the water is still
cold (you'll need a wetsuit for skiing). Spring weather is highly unpredictable
and a cold snap in March is not uncommon. The advantage of traveling this time
of year is that availability of accommodations and rentals are greater. June,
July and August tend to be very hot, very crowded and availability can be tough.
September is the ideal month for travel to Lake Powell as the air temperature
has cooled off a bit, yet the water is still extremely warm and the crowds have
dispersed somewhat. It usually rains a great deal in September. Early October is
surprisingly a great time to visit Lake Powell as long as the weather holds. The
lake is relatively empty and the water is usually still warm enough for skiing
or swimming -- even into the third week of the month.
Average water temperatures fluctuate from a chilly 46 degrees F in February
to an inviting 80 degrees F in August. Cold water months: January, 47; March,
52; December, 53; April 54; November 62. Warmest water months: July and
September, 76; June, 70; May, 64, October, 69. But don't let cold water scare you
away, there's always fishing!