Lake Mead water temp
The swimming season in Lake Mead lasts from May to October. During those months, Lake Mead water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Lake Mead in winter reaches 57.9°F, in spring 63.9°F, in summer the average temperature rises to 82.2°F, and in autumn it is 74.1°F.
Lake Mead water temperature now
You may also be interested in other sections of our site for Lake Mead: Sunrise and Sunset
Lake Mead water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Lake Mead. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years.
| Month | Avr | Min | Max | |
|---|---|---|---|---|
| January | 57°F | 55°F | 59°F | cold |
| February | 55.9°F | 54.3°F | 59°F | cold |
| March | 57.9°F | 54.3°F | 64.8°F | cold |
| April | 63.3°F | 58.1°F | 70.2°F | cold |
| May | 70.2°F | 64.8°F | 79.9°F | warm |
| June | 77.9°F | 70.7°F | 88.9°F | hot |
| July | 83.8°F | 76.1°F | 89.8°F | hot |
| August | 84.9°F | 81.7°F | 89.4°F | hot |
| September | 81.3°F | 75.6°F | 87.8°F | hot |
| October | 74.1°F | 70.2°F | 80.1°F | warm |
| November | 67.1°F | 63.5°F | 71.8°F | cold |
| December | 60.8°F | 57.7°F | 64.9°F | cold |
Chart monthly average water temperature in Lake Mead
Current temperature and weather
Data in a table show Lake Mead temperature today (September 17, 2025). For more information and forecast for a few days, go to the weather forecast Lake Mead.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 81°F | 73.4°F | 68.4°F | 75.7°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | |  |
| 91°F | 98.1°F | 95.4°F | 88.3°F |
