​​​​​ Summer Heat Safety Summer Heat Safety

Excessive Heat Warning

The National Weather Service in Phoenix has issued an Excessive
Heat Warning, which is in effect from Tuesday 10:00 AM until
Thursday, 8:00 PM. This warning includes the Phoenix metro area. High temperatures may range from 107 and 113 degrees. Increased potential for heat related illness. Those working or participating in outdoor activities during the afternoon hours or those without access to adequate air conditioning will be most at risk. Stay indoors and seek air-conditioned buildings. Drink water, more than usual.

Excessive Heat Watch

The National Weather Service in Phoenix has issued an Excessive
Heat Watch, which is in effect from Thursday 10:00 AM until
Friday, 9:00 PM. This watch affects the Greater Phoenix area, northwest Pinal County, and the Tonto Basin. High temperatures may range from 110 and 115 degrees. Increased potential for heat related illness. Those working or participating in outdoor activities during the afternoon hours or those without access to adequate air conditioning will be most at risk.

Severe Thunderstorm Warning

Severe Thunderstorm Warning including Phoenix AZ, Mesa AZ, Scottsdale AZ until 5:00 PM MST

Flash Flood Warning

Flash Flood Warning until 6:45 PM MST. Thunderstorms may produce heavy rain.


When it's above 100° it's important to: Stay cool. Stay hydrated. Stay informed. The Phoenix Metro area will experience hot temperatures with high to very high heat risk. Heat related illness will be possible to those sensitive to the heat such as the elderly and homeless, individuals spending time outdoors, and those without effective cooling and/or adequate hydration.

Practicee Heat Safety Wherever you are

Heat related illness and deaths are preventable. Review these tips to stay safe during extreme heat! 

​Do you know what triggers an excessive heat warning? An Excessive Heat Warning is issued by the National We​ather Service when there is a High or Very High Heat Risk.  During periods of excessive heat, it's best to remain indoors. Should you find yourself outside in the elements, here's how to protect yourself:

  • When possible, utilize indoor facilities that accommodate physical activity
  • Plan outdoor activities for the coolest times of the day
  • Limit and reduce duration of outdoor activity 
  • Take frequent breaks
  • Provide drinking water before, during, and after the activity 
  • Drink more water than usual. Avoid drinks with sugar, alcohol and caffeine
  • Pace physical activity
  • Plan for cool-down recovery time in the shade if possible following an outdoor activity
  • Wear light colored clothing, wide-brimmed hats

If you are outdoors, know the signs of heat exhaustion. Are you feeling faint or dizzy? Are you pale or is your skin clammy? See the warning signs below. 

Heat Exhaustion or heat strokeDownload flyer in English (PDF) or Spanish (PDF)

Cooling Stations

HRN.jpgDuring the summer, staying hydrated and cool is vital!

The "Heat Relief Network" offers free water and indoor locations to cool off. Download a map of cooling locations (PDF) that are BOTH hydration stations and cooling refuge locations for anyone needing to get out of the heat. Or share and embed the interactive locations map below.

Take a Hike. Do it Right.

When the forecast hits the triple-digit, City of Phoenix Rangers advise not hiking during these weather conditions and ask that always follow these life-saving Take a Hike. Do it Right website safety guidelines.

Beat the Heat 

Heat affects everyone differently. In order to better address heat risk and allow you to prepare for upcoming heat events, the NWS has developed the experimental HeatRisk forecast. The NWS HeatRisk forecast provides a quick view of heat risk potential over the upcoming seven days.

Summer Safety  

Visit Summer Safety to learn about Summer Fun, how to be Heat Ready, and to learn more about Monsoon Weather Phoenix.gov/Summer

Stay Cool Giveaway
Water droplets

Want to help? 

Small donations of water can be delivered to one of the following Human Services Department Senior or Family Services Centers between the hours of 8:00 a.m. – 4:30 p.m. on weekdays.

Large donations of water or a tax-deductible cash donation can be coordinated by contacting the City of Phoenix Human Services Department at 602-571-0134.

Other Ways We Help

Stay hydrated!

In addition to the "We're Cool" cooling locations, there are designated water locations around the Valley, where you can get a FREE bottle of water to stay hydrated. Phoenix Parks and Recreation Centers, Senior Centers and other city buildings. Download a full list of water hydration locations  (PDF).

Never leave kids in a parked car!

Never leave your child in a parked car .... not even for a minute. Phoenix Children's Hospital says temperatures can reach between 131 and 172 degrees inside a parked car within 15 minutes.  They also recommend when out with your kids to make sure they drink 16 ounces of water every four hours. Learn more summer safety tips

Keep Pets Safe!

Hot dog laying on ice

We want to help  keep pets safe and cool this summer. Did you know that dogs are prohibited on ALL city hiking trails when the temperature is 100 degrees or warmer? Learn how to spot signs of heat illness in you pets from the Humane Society (PDF)

Stay in the shade!

Phoenix has a Tree and Shade Master Plan that strives to create a healthier, more livable and prosperous Phoenix through the strategic investment in care and maintenance of urban forest and engineered shade.

Cars in unshaded parking lot  

​​​​​​​​​​Do you know what Phoenix Walkable Urban (WU) Code entails? The  Phoenix City Council approved code focuses on urban development around the light rail by adding pedestrian shade and architectural embellishments to make the area more walkable and pedestrian-friendly. 

Are you a renter that is having problems with your AC?

Phoenix adopted a Cooling Ordinance which included a minimum temperature for cooling and ventilation in rental  units. Rental units need to safely cool all habitable rooms to a temperature of no greater than 86 degrees if cooled by evaporative cooling; and no greater than 82 degrees if cooled by air conditioning.  

Phoenix's Neighborhood Services Department (NSD)  investigates complaints and also has the Landlord/Tenant Counseling division to help renters learn their rights. Reach NSD at 602-534-4444. 

Weather Disclaimer:
Weather data is provided as a general guide only. City of Phoenix assumes no responsibility for any loss resulting from use of this information. The user assumes the entire risk related to the use of this data. The City of Phoenix provides weather data through a third party "as is", and the City of Phoenix disclaims any and all warranties, whether express or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will the City of Phoenix be liable to you or to any third party for any direct, indirect, incidental, consequential, special or exemplary damages or lost profit resulting from any use or misuse of this data.