Extreme heat is one of the most significant hazards facing New York City, and New Yorkers are especially vulnerable to extreme heat-related hazards during the summer months. 


Know the Signs of Heat-Related Illnesses 

Prolonged exposure to the heat can be harmful and potentially fatal. Call 911 if you or someone you know shows signs or symptoms of heat illness, including headache, light headedness, muscle cramps, nausea, and vomiting. Learn more about heat-related illnesses and tips from the NYC Department of Health & Mental Hygiene. 

 Stay Informed 

Listen to local weather forecasts and announcements from officials. NYC Emergency Management will send emergency alerts and updates to New Yorkers through various channels. 

 Sign up for Notify NYC, the City of New York's official, free emergency communications program. Register for emergency notifications by getting the free Notify NYC mobile application, visiting, contacting 311 (212-639-9675 for Video Relay Service, or TTY: 212-504-4115) or following @NotifyNYC on Twitter

 Protect Your Health & Stay Cool 

  • During heat emergencies, the City will open cooling centers throughout the five boroughs. Visit the Cooling Center Finder or contact 311 (212-639-9675 for Video Relay Service, or TTY: 212-504-4115) to find out whether a cooling center is open near you. 

Note: Cooling centers are facilities managed by agency partners who determine each site's hours of operation, level(s) of accessibility and other logistical details. New Yorkers are encouraged to call ahead to determine whether their pets are fallowed at the facilities. Service animals are always allowed. For additional information, please contact these facilities directly. 

  • Use an air conditioner during hot weather and heat emergencies, even if it is only for a few hours. A setting of 78 degrees F (or low cool) can provide a comfortable environment, help save on electricity bills, and conserve energy. 
  • If you do not have an air conditioner, you may qualify for energy assistance. Visit the Human Resource Administration online for information about the Home Energy Assistance Program (HEAP). 
  • If possible, stay out of the sun. When in the sun, wear sunscreen (at least SPF 15) and a hat to protect your face and head, and lightweight, light-colored, loose clothing that covers as much of your skin as possible. 
  • If you do not have an air conditioner, keep rooms well-ventilated with open windows and fans. Fans work best at night, when they can bring in cooler air from outside. 
  • Drink fluids particularly water even if you do not feel thirsty.* (*People with heart, kidney or liver disease, or on fluid restricted diets should check with their doctors before increasing fluid intake.) 
  • Never leave children, pets, or those who require special care in a parked car during periods of intense summer heat. 
  • Avoid strenuous activity, especially during the sun's peak hours 11 a.m. to 4 p.m. If you must engage in strenuous activity, do it during the coolest part of the day, usually in the morning between 4am and 7am. 
  • Cool showers or baths may be helpful, but avoid extreme temperature changes. Never take a shower immediately after becoming overheated extreme temperature changes may make you ill, nauseated, or dizzy. 
  • If you have asthma or other respiratory problems, stay in an area where it is cool, and the air is filtered or air-conditioned. 
July 12, 2024