Hydration in the Local Climate: How Much and What to Drink

Salt Lake City summers push daily fluid intake recommendations to at least 3.5 liters for active adults living above 4,000 feet.

The dry air and rapid temperature swings at this elevation increase water loss through respiration and sweat, a factor that local health programs now track more closely ahead of the July heat peak. City records show average afternoon humidity dropping below 25 percent on 22 days last July, which accelerates dehydration compared with sea-level cities.

Two local programs illustrate the shift in focus. The Salt Lake County Health Department’s summer hydration stations at Liberty Park on 600 East now stock electrolyte packets alongside water coolers. At the same time, the University of Utah’s campus wellness initiative added refill stations along the Jordan River Parkway trail that runs behind the Research Park buildings on Wakara Way.

Local drink choices and costs

Shoppers in the Sugar House neighborhood pay $2.49 for a 20-ounce bottle of coconut-water-based electrolyte at the Whole Foods on 700 East. City data from the 2025 summer season recorded 18 heat-related emergency calls tied to inadequate fluid replacement, prompting the health department to publish updated guidelines on July 1 of this year.

Plain tap water from the city’s canyons meets basic needs, yet residents at higher activity levels add sodium or potassium sources after 90 minutes of exertion. The county program distributes free packets at its five fixed stations through Labor Day.

Next steps for residents

Track urine color and body weight before and after outdoor time on trails such as the Bonneville Shoreline above Emigration Canyon. Adjust intake upward by half a liter for every hour spent above 85 degrees, and consult a primary-care provider before changing routines for chronic conditions.