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Union Valley Reservoir
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Union Valley Reservoir Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Union Valley Reservoir, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Lake Water Temperature Information
48°F
TODAY
49°F
YESTERDAY
48°F
A WEEK AGO
As of today, the minimum water temperature in the Union Valley Reservoir ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing can be used.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Union Valley Reservoir Over the Last 30 Days
Today the water temperature in Union Valley Reservoir is lower than the same day in previous years. The water temperature range here in May is from 45°F to 63°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for Union Valley Reservoir are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Daily Water Temperature Chart
| Date | Current | Average | Forecast |
|---|---|---|---|
| May 9 | 48°F | 54°F | |
| May 10 | 47°F | 54°F | |
| May 11 | 47°F | 54°F | |
| May 12 | 48°F | 54°F | |
| May 13 | 48°F | 54°F | |
| May 14 | 49°F | 54°F | |
| May 15 | 49°F | 54°F | |
| May 16 | 48°F | 54°F | |
| May 17 | 54°F | 49°F | |
| May 18 | 54°F | 49°F | |
| May 19 | 54°F | 49°F | |
| May 20 | 54°F | 50°F | |
| May 21 | 54°F | 50°F | |
| May 22 | 54°F | 50°F | |
| May 23 | 54°F | 50°F | |
| May 24 | 54°F | 50°F |
Water Temperature Ranges in Union Valley Reservoir by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 43°F | 48°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 41°F | 45°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 42°F | 46°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 47°F | 54°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 45°F | 54°F | 63°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 67°F | 72°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 73°F | 77°F | 81°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 73°F | 77°F | 81°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 70°F | 75°F | 79°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 59°F | 64°F | 68°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 56°F | 61°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 46°F | 50°F |
Monthly Water Temperature Histogram for Union Valley Reservoir
Union Valley Reservoir Weather
MAY 17
45°F / 66°F
light drizzlerain: 45% | wind: 12 mph
MAY 18
37°F / 59°F
light drizzlerain: 45% | wind: 12 mph
MAY 19
34°F / 66°F
overcastrain: 9% | wind: 10 mph
MAY 20
43°F / 72°F
clear skyrain: 1% | wind: 10 mph
MAY 21
48°F / 75°F
clear skyrain: 1% | wind: 11 mph
Water Temperature in Union Valley Reservoir: General Trends and Swimming Opportunities
Union Valley Reservoir is located in the state of California, in the county of El Dorado, at an elevation of 4832 feet (1473 meters) above sea level.
Union Valley Reservoir is a medium lake. Its surface area is 4.3 sq mi (11.1 sq km). Typically versatile lakes with developed ecosystems; popular for water sports and tourism.
The water temperature in Union Valley Reservoir varies throughout the year, ranging from 37°F (3°C) in February to 81°F (27°C) in July. The average annual water temperature of the lake is 57°F (14°C). The months when the average water temperature in Union Valley Reservoir exceeds 68 degrees Fahrenheit (20°C) are July, August and September.
The nearest cities ans towns to Union Valley Reservoir are: Pollock Pines, Camino, Tahoma, Somerset, Placerville, Georgetown, South Lake Tahoe, Sunnyside-Tahoe City, Foresthill, Diamond Springs in California.
Geographical Location of Union Valley Reservoir
Nearby Lakes
Frequently Asked Questions About Union Valley Reservoir and its Water Temperatures
What is the current water temperature in Union Valley Reservoir?
The water temperature today in Union Valley Reservoir is 48°F (9.1°C).
What is the water temperature in Union Valley Reservoir during the summer months?
The average water temperature in Union Valley Reservoir during the summer months is typically between 67°F to 77°F (19°C to 25°C), and it can reach up to 81°F (27°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Union Valley Reservoir in May?
The average water temperature in Union Valley Reservoir in May ranges from 54°F to 63°F (12°C to 17°C).
What is the water temperature in Union Valley Reservoir in September?
The average water temperature in Union Valley Reservoir in September is typically between 70°F to 79°F (21°C to 26°C).
Where is Union Valley Reservoir located?
Union Valley Reservoir is located in the United States in the state of California, in the county of El Dorado, at an elevation of 4832 feet (1473 meters) above sea level. The surface area of the lake is 4.273 sq mi (11.07 sq km).
Is it possible to swim in Union Valley Reservoir and what are the possibilities for this?
Yes, it is possible to swim in Union Valley Reservoir in California. The possibilities include recreational swimming, boating, and engaging in other water sports.
What are the coordinates of Union Valley Reservoir?
Union Valley Reservoir is located at coordinates 38.8740°N 120.4130°W.
Is Lake Union Valley Reservoir a popular vacation spot among Americans?
Union Valley Reservoir enjoys local popularity among the residents of State California, and nationally, it ranks in the top 10 percent of all lakes in the country.