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Sweetwater Reservoir

Sweetwater Reservoir Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Sweetwater 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

58°F

TODAY

58°F

YESTERDAY

58°F

A WEEK AGO

As of today, the minimum water temperature in the Sweetwater Reservoir ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.

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 Sweetwater Reservoir Over the Last 30 Days

Today the water temperature in Sweetwater Reservoir is lower than the same day in previous years. The water temperature range here in February is from 57°F to 77°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 Sweetwater 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

DateCurrentAverageForecast
Feb 1658°F67°F
Feb 1758°F67°F
Feb 1857°F67°F
Feb 1957°F67°F
Feb 2058°F67°F
Feb 2158°F67°F
Feb 2258°F67°F
Feb 2359°F67°F
Feb 2467°F59°F
Feb 2567°F60°F
Feb 2667°F60°F
Feb 2767°F60°F
Feb 2867°F61°F
Mar 172°F62°F
Mar 272°F62°F
Mar 372°F63°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Sweetwater Reservoir by Month

January

MinimumAverageMaximum
59°F67°F75°F

February

MinimumAverageMaximum
57°F67°F77°F

March

MinimumAverageMaximum
68°F72°F77°F

April

MinimumAverageMaximum
75°F79°F84°F

May

MinimumAverageMaximum
75°F79°F84°F

June

MinimumAverageMaximum
75°F80°F84°F

July

MinimumAverageMaximum
86°F90°F93°F

August

MinimumAverageMaximum
84°F89°F91°F

September

MinimumAverageMaximum
82°F86°F90°F

October

MinimumAverageMaximum
73°F77°F81°F

November

MinimumAverageMaximum
70°F75°F79°F

December

MinimumAverageMaximum
70°F74°F79°F

Monthly Water Temperature Histogram for Sweetwater Reservoir

Sweetwater Reservoir Weather

FEBRUARY 24

59°F / 77°F
overcast

rain: 0% | wind: 9 mph

FEBRUARY 25

59°F / 79°F
overcast

rain: 0% | wind: 8 mph

FEBRUARY 26

63°F / 82°F
overcast

rain: 0% | wind: 7 mph

FEBRUARY 27

64°F / 81°F
overcast

rain: 1% | wind: 9 mph

FEBRUARY 28

59°F / 75°F
overcast

rain: 12% | wind: 12 mph

Water Temperature in Sweetwater Reservoir: General Trends and Swimming Opportunities

Sweetwater Reservoir is located in the state of California, in the county of San Diego, at an elevation of 236 feet (72 meters) above sea level.

Sweetwater Reservoir is a small lake. Its surface area is 1.44 sq mi (3.72 sq km). These are small water bodies often used for recreation, fishing, or irrigation.

The water temperature in Sweetwater Reservoir varies throughout the year, ranging from 66°F (19°C) in January to 93°F (34°C) in July. The average annual water temperature of the lake is 79°F (26°C). Throughout the year, the average monthly water temperature in Sweetwater Reservoir does not drop below 68 degrees Fahrenheit (20°C).

The nearest cities ans towns to Sweetwater Reservoir are: La Presa, Spring Valley, Bonita, Lemon Grove, Rancho San Diego, Casa de Oro-Mount Helix, La Mesa, Chula Vista, El Cajon, National City in California.

Geographical Location of Sweetwater Reservoir

Frequently Asked Questions About Sweetwater Reservoir and its Water Temperatures

What is the current water temperature in Sweetwater Reservoir?

The water temperature today in Sweetwater Reservoir is 58°F (14.7°C).

What is the water temperature in Sweetwater Reservoir during the summer months?

The average water temperature in Sweetwater Reservoir during the summer months is typically between 80°F to 90°F (27°C to 32°C), and it can reach up to 93°F (34°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Sweetwater Reservoir in May?

The average water temperature in Sweetwater Reservoir in May ranges from 75°F to 84°F (24°C to 29°C).

What is the water temperature in Sweetwater Reservoir in September?

The average water temperature in Sweetwater Reservoir in September is typically between 82°F to 90°F (28°C to 32°C).

Where is Sweetwater Reservoir located?

Sweetwater Reservoir is located in the United States in the state of California, in the county of San Diego, at an elevation of 236 feet (72 meters) above sea level. The surface area of the lake is 1.435 sq mi (3.72 sq km).

Is it possible to swim in Sweetwater Reservoir and what are the possibilities for this?

No, it is not possible to swim in Sweetwater Reservoir in California as it is a protected source of drinking water. Recreational activities including swimming are strictly prohibited to maintain water quality.

What are the coordinates of Sweetwater Reservoir?

Sweetwater Reservoir is located at coordinates 32.6990°N 116.9880°W.

Is Lake Sweetwater Reservoir a popular vacation spot among Americans?

Sweetwater 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.

What species of fish can be found in Sweetwater Reservoir?

Sweetwater Reservoir is home to fish species such as Largemouth bass (best caught in Spring, Fall), Bluegill (Spring, Summer), Channel catfish (Spring, Summer), Black crappie (Spring, Fall), Rainbow trout (Spring, Fall).