Tempe — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Tempe, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Tempe today is 28.9°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 |
|---|---|---|---|
| SEP 14 | 29.9°C | 20.5°C | |
| SEP 15 | 30.1°C | 20.5°C | |
| SEP 16 | 30.1°C | 20.5°C | |
| SEP 17 | 29.9°C | 20.5°C | |
| SEP 18 | 29.0°C | 20.5°C | |
| SEP 19 | 28.9°C | 20.5°C | |
| SEP 20 | 28.9°C | 20.5°C | |
| SEP 21 | 28.9°C | 20.5°C | |
| SEP 22 | 20.5°C | 28.5°C | |
| SEP 23 | 20.5°C | 28.1°C | |
| SEP 24 | 20.5°C | 27.6°C | |
| SEP 25 | 20.5°C | 27.2°C | |
| SEP 26 | 20.5°C | 26.8°C | |
| SEP 27 | 20.5°C | 26.4°C | |
| SEP 28 | 20.5°C | 26.0°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 | 16°C |
| February | 3°C | 9°C | 16°C |
| March | 3°C | 12°C | 21°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 | 26°C | 36°C |
| August | 17°C | 26°C | 36°C |
| September | 11°C | 21°C | 30°C |
| October | 8°C | 17°C | 26°C |
| November | 3°C | 13°C | 22°C |
| December | 10°C | 13°C | 17°C |
Tempe: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Tempe, Arizona, is located along the Salt River, a major waterway that runs through the area, providing some recreational opportunities, including swimming. The water temperature in the Salt River can fluctuate throughout the year, with the warmest temperatures occurring during the summer months. During this time, the river's water temperature generally ranges from 70°F (21°C) to 80°F (27°C), which can feel quite refreshing given the intense summer heat in Tempe, where temperatures often soar above 100°F (38°C). Swimming in the river is a popular way to cool off during the hotter months, though the flow of the river can be strong in some areas, making it more suitable for those who are comfortable with natural waterways.
In the winter, the water temperature of the Salt River cools down significantly, typically ranging between 50°F (10°C) and 60°F (15°C). These colder temperatures can make swimming less comfortable for many people, although it is still possible for those willing to brave the chill. Additionally, the river's flow can be stronger during the cooler months, so caution is necessary for swimmers who want to venture into the water. Despite the cooler conditions in winter, the river still offers various activities like kayaking, tubing, and fishing, which attract visitors looking to enjoy the natural beauty of the area.
For those looking for more consistent swimming conditions, Tempe offers plenty of public pools and water parks, where the water is maintained at a comfortable temperature of around 78°F (26°C) to 82°F (28°C). However, the Salt River provides a more adventurous, natural swimming experience, especially in the summer when its water temperature is at its peak.