Boulder City water temp
This data the coastal Boulder City water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Current water temperature in Boulder City
Water temperature in Boulder City today is 66.2°F. Based on our historical data over a period of ten years, the warmest water in this day in Boulder City was recorded in 2020 and was 78.8°F, and the coldest was recorded in 2021 at 62.6°F. Water temperature in Boulder City is expected to rise to 68°F in the next 10 days. October average water temperature in Boulder City is 75°F, the minimum temperature is 62.6°F, and the maximum is 86°F.
The swimming season in Boulder City lasts from April to October. During those months, Boulder City water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Boulder City in winter reaches 49.6°F, in spring 64.9°F, in summer the average temperature rises to 87.4°F, and in autumn it is 74.3°F.
Boulder City water temperature now
| October 19, 2025 |
|---|
| today temp |
| 66.2°F |
| October 18, 2025 |
|---|
| yesterday temp |
| 66.2°F |
Current temperature and weather
Data in a table show Boulder City temperature today (October 19, 2025). For more information and forecast for a few days, go to the weather forecast Boulder City.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 65.5°F | 63°F | 61.2°F | 67.5°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 | | |  |
| 76.3°F | 82.2°F | 76.6°F | 67.1°F |
You may also be interested in other sections of our site for Boulder City: Sunrise and Sunset
Boulder City water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Boulder City. 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. Using them, you can check the water temperature in Boulder City on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
| Month | Avr | Min | Max | |
|---|---|---|---|---|
| January | 47.3°F | 41°F | 55.4°F | cold |
| Water temperature in Boulder City in January | ||||
| February | 51.4°F | 42.8°F | 59°F | cold |
| Water temperature in Boulder City in February | ||||
| March | 55.8°F | 37.4°F | 69.8°F | cold |
| Water temperature in Boulder City in March | ||||
| April | 65.1°F | 53.6°F | 82.4°F | cold |
| Water temperature in Boulder City in April | ||||
| May | 74.1°F | 62.6°F | 87.8°F | warm |
| Water temperature in Boulder City in May | ||||
| June | 82.4°F | 69.8°F | 98.6°F | hot |
| Water temperature in Boulder City in June | ||||
| July | 90°F | 75.2°F | 100.4°F | hot |
| Water temperature in Boulder City in July | ||||
| August | 90°F | 78.8°F | 98.6°F | hot |
| Water temperature in Boulder City in August | ||||
| September | 86.4°F | 77°F | 96.8°F | hot |
| Water temperature in Boulder City in September | ||||
| October | 75°F | 62.6°F | 86°F | warm |
| Water temperature in Boulder City in October | ||||
| November | 61.7°F | 50°F | 78.8°F | cold |
| Water temperature in Boulder City in November | ||||
| December | 50°F | 42.8°F | 59°F | cold |
| Water temperature in Boulder City in December | ||||
Chart monthly average water temperature in Boulder City
