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Heat Advisory Safety Announcement

Public Service Announcement:


The San Francisco Department of Emergency Management (DEM) is monitoring extreme heat forecasts across the Bay Area, including increased temperatures in San Francisco. The National Weather Service has issued a Heat Advisory for the City and County of San Francisco from 11:00 a.m. today through 7:00 p.m. tomorrow, predicting temperatures ranging from the low 80s to the mid-90s. While the entire city is covered under the Heat Advisory, the areas predicted to be most at risk include urban heat island neighborhoods such as the Mission, Tenderloin, Mission Bay, Bayview, South of Market, Chinatown, and Treasure Island. These high temperatures are expected to last through the weekend.Heat deaths are preventable. The public is encouraged to carefully monitor themselves for heat impacts and to regularly check on family, friends, and neighbors who may be vulnerable to heat. Older adults, infants, and people with disabilities or pre-existing medical conditions are often at highest risk of heat illness, but anyone can feel impacts of extreme heat after prolonged exposure without proper preventative measures.

Heat illness prevention measures:

  • Stay hydrated! Drinking water, even when not thirsty, can help your body stay cool and healthy. Avoid alcohol, caffeine, and sports drinks with excess sugar.

  • Limit the amount of time spent outside in the sun. When outside, take frequent breaks in shady or cool areas whenever possible.

  • Check on family, friends, and neighbors frequently, especially if they live alone or are vulnerable to heat illness. When possible, schedule in-person visits so you can monitor the temperature of their living spaces rather than relying on phone calls.

  • Signs of heat exhaustion and heat stroke can appear suddenly. Heat exhaustion may include dizziness, excessive sweating, and nausea. Heat stroke may include an altered mental state or loss of consciousness. If you or someone you know experiences these severe symptoms, call 9-1-1.

Where to find cooler temperatures in San Francisco:

  • The public is encouraged to visit public places with air conditioning or shade to seek relief from the heat. This includes community centers, libraries, swimming pools, malls, movie theaters, museums, and parks with shade.

  • There are multiple City-managed locations equipped with air conditioning that are open to the public during regular business hours, including six libraries and a community center listed below. A map of these locations and their hours of operation can be found at

  • Main Library: 100 Larkin St.

  • Chinatown/Him Mark Li Branch Library: 1135 Powell St.

  • Glen Park Branch Library: 2825 Diamond St.

  • Mission Bay Branch Library: 960 Fourth St.

  • North Beach Branch Library: 850 Columbus Ave.

  • Potrero Hill Branch Library: 1616 20th St.

  • Southeast Community Center: 1550 Evans Ave.

Safety reminders:

  • Coastal safety: Riptides and sneaker waves can make San Francisco beaches dangerous places to swim. When at the beach, members of the public are encouraged to stay in shallow areas rather than swim into deeper water, especially on crowded days.

  • Vehicle safety: Look before you lock your car, especially when traveling with children, older adults, people with disabilities, or pets. Outside temperatures of 80 degrees can climb to over 100 degrees after only 15 minutes inside a locked car.

  • Window safety: Open windows can be powerful natural air conditioners but can also increase the risk of falls for young children. Always closely monitor activities near open windows, especially for kids and pets, and install window safety gates where possible.

  • Rooftop safety: Be aware of your surroundings when on rooftops and balconies. Do not approach the edge, especially when in a crowd.

Public information and notification:

  • Sign up for official city emergency alerts by texting your zip code to 888-777.

  • Visit for heat alerts and safety tips.

  • Follow DEM social media channels:

  • Facebook:

  • Instagram:

  • Nextdoor: San Francisco Department of Emergency Management

  • Twitter/X: @sf_emergency

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