Santa Ana — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Santa Ana, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Santa Ana today is 31.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature 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.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 18 | 30.1°C | 24.2°C | |
| JUL 19 | 30.2°C | 24.2°C | |
| JUL 20 | 30.2°C | 24.2°C | |
| JUL 21 | 31.3°C | 24.2°C | |
| JUL 22 | 31.5°C | 24.2°C | |
| JUL 23 | 31.3°C | 24.2°C | |
| JUL 24 | 31.4°C | 24.2°C | |
| JUL 25 | 31.4°C | 24.2°C | |
| JUL 26 | 24.2°C | 30.7°C | |
| JUL 27 | 24.2°C | 30.3°C | |
| JUL 28 | 24.2°C | 30.0°C | |
| JUL 29 | 24.2°C | 29.6°C | |
| JUL 30 | 24.2°C | 29.2°C | |
| JUL 31 | 24.2°C | 28.8°C | |
| AUG 1 | 23.5°C | 28.4°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 3°C | 10°C | 17°C |
| February | 3°C | 11°C | 18°C |
| March | 3°C | 12°C | 20°C |
| April | 5°C | 14°C | 23°C |
| May | 8°C | 18°C | 27°C |
| June | 14°C | 22°C | 30°C |
| July | 17°C | 24°C | 32°C |
| August | 17°C | 24°C | 30°C |
| September | 11°C | 20°C | 29°C |
| October | 8°C | 18°C | 27°C |
| November | 3°C | 14°C | 24°C |
| December | 13°C | 6°C | 18°C |
Santa Ana: Weather Forecast
July 26
July 27
July 28
July 29
July 30
Location & Local Information
Santa Ana, California, is located near the Santa Ana River, which runs through the region, but the river is not commonly known for being a swimming destination. While the river provides opportunities for activities like fishing, hiking, and bird watching, its water temperature and current conditions make it less suitable for casual swimming. During the warmer months, the water temperature in the Santa Ana River typically ranges from 60°F (16°C) to 70°F (21°C). While this can feel refreshing, it is not typically warm enough for extended swimming, and the river's currents can be swift, adding an element of risk for swimmers.
The river’s water temperature drops even further during the cooler months, typically falling to 50°F (10°C) to 60°F (15°C), making swimming in it even less appealing. Despite the cool temperatures, the Santa Ana River offers a unique and scenic environment for other outdoor activities. While wading or dipping a toe in the water may be pleasant during the hot summer days, it’s important to be cautious and aware of the strong flows in certain sections, especially after rainstorms or in areas with steep gradients.
For those seeking better opportunities for swimming, Santa Ana offers other options, such as nearby public pools and recreational lakes. The city’s pools typically maintain water temperatures between 78°F (26°C) and 82°F (28°C), which makes them ideal for year-round swimming. Additionally, places like Irvine Lake or the reservoirs in surrounding areas offer warmer waters, ranging from 70°F (21°C) to 80°F (27°C) in the summer, making them far more suited for swimming, boating, and other water-based activities.