Average Lake Mead Water Temperature
As measured at Sentinel Island in the Boulder Basin.
(Water temperatures are averaged based on data acquired from the National Geological Survey)
Month |
15 feet |
60 feet |
90 feet |
180 feet |
January |
55° |
55° |
55° |
55° |
February |
53° |
53° |
53° |
53° |
March |
54° |
54° |
53° |
53° |
April |
60° |
54° |
53° |
52° |
May |
65° |
60° |
56° |
53° |
June |
76° |
63° |
58° |
53° |
July |
81° |
65° |
60° |
54° |
August |
84° |
70° |
61° |
55° |
September |
80° |
70° |
65° |
55° |
October |
80° |
72° |
64° |
55° |
November |
65° |
65° |
65° |
54° |
December |
61° |
62° |
61° |
55° |
