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San Antonio
San Antonio Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in San Antonio, 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 Water Temperature in San Antonio
83°F
TODAY
78°F
YESTERDAY
77°F
A WEEK AGO
As of today, the minimum water temperature in San Antonio is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating.
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 in San Antonio Over the Last 30 Days
Today the water temperature in San Antonio is higher than the same day in previous years. The water temperature range here in July is from 63°F to 79°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 San Antonio 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 |
|---|---|---|---|
| Jul 19 | 77°F | 71°F | |
| Jul 20 | 78°F | 71°F | |
| Jul 21 | 77°F | 71°F | |
| Jul 22 | 78°F | 71°F | |
| Jul 23 | 78°F | 71°F | |
| Jul 24 | 78°F | 71°F | |
| Jul 25 | 78°F | 71°F | |
| Jul 26 | 83°F | 71°F | |
| Jul 27 | 71°F | 83°F | |
| Jul 28 | 71°F | 82°F | |
| Jul 29 | 71°F | 81°F | |
| Jul 30 | 71°F | 81°F | |
| Jul 31 | 71°F | 80°F | |
| Aug 1 | 71°F | 80°F | |
| Aug 2 | 71°F | 79°F | |
| Aug 3 | 71°F | 78°F |
Water Temperature Ranges in San Antonio by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 49°F | 61°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 51°F | 64°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 56°F | 75°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 59°F | 77°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 65°F | 84°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 70°F | 82°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 71°F | 79°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 71°F | 73°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 64°F | 66°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 61°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 47°F | 61°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 40°F | 46°F |
Monthly Water Temperature Histogram in San Antonio
San Antonio Weather
JULY 27
73°F / 99°F
light drizzlerain: 28% | wind: 20 mph
JULY 28
73°F / 100°F
overcastrain: 12% | wind: 15 mph
JULY 29
73°F / 100°F
overcastrain: 5% | wind: 16 mph
JULY 30
77°F / 106°F
overcastrain: 4% | wind: 12 mph
Water Temperature in San Antonio: General Trends and Swimming Opportunities
San Antonio, Texas, is home to a variety of water bodies, with temperatures in rivers, lakes, and other natural features fluctuating based on the season. The San Antonio River, which flows through the heart of the city, typically has warmer water during the summer, ranging from 75°F to 85°F (24°C to 29°C). While the river is popular for leisurely activities like walking along the riverwalk and enjoying the city’s scenic views, swimming in the San Antonio River itself is generally not encouraged. The river is more suited for sightseeing and kayaking rather than swimming due to urban runoff and occasional water quality concerns.
In addition to the river, San Antonio has several notable swimming destinations, such as the natural springs of the San Marcos River, located just outside the city, or the city's many public pools. For those seeking cooler, clearer water, the springs in areas like the Guadalupe River maintain a temperature range of 68°F to 72°F (20°C to 22°C) year-round, providing a refreshing option for swimming, tubing, and canoeing. The area's lakes, including Braunig Lake and Calaveras Lake, also offer more controlled environments for swimming, with water temperatures typically ranging from 80°F to 90°F (27°C to 32°C) in the summer months, making them ideal for a day of swimming or boating in a more serene atmosphere.
Overall, while the San Antonio River is a scenic spot for other activities, the city's lakes, spring-fed rivers, and public pools are the best options for swimming in the area.
Geographical Location of San Antonio
Frequently Asked Questions About San Antonio and its Water Temperatures
What is the current water temperature in San Antonio?
The water temperature today in San Antonio is 83°F (28.6°C).
What is the water temperature in San Antonio during the summer months?
The average water temperature in San Antonio during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in San Antonio in May?
The average water temperature in San Antonio in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in San Antonio in September?
The average water temperature in San Antonio in September is typically between 52°F to 66°F (11°C to 19°C).
Is it possible to swim in any bodies of water in San Antonio (United States, Texas), and what are the available options for doing so?
Yes, it's possible to swim in various bodies of water in San Antonio, Texas. Options include public pools, water parks, local rivers such as the San Antonio River, and natural springs like the San Pedro Springs Park.