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Using Translation

The County of San Mateo has added a translation feature developed by Google Translate to assist web visitors in understanding information on this website in a variety of foreign languages. Please be aware that Google Translate, a free third party service which the County does not control, provides automated computer translations that may not give you an exact translation. The County cannot guarantee the accuracy of translations through Google Translate so translations should not be considered exact and only used as a rough guide. Anyone relying on information obtained from Google Translate does so at his or her own risk. The County disclaims and will not accept any liability for damages or losses of any kind caused by the use of the Google Translate feature.

Extreme Heat

Extreme heat can make you sick. Learn how to stay cool and safe.

Beat the Heat

San Mateo County sometimes has very hot days, especially inland and in summer. Heat can make people sick, strain power grids, and increase fire risk. Older adults, children, and people with health problems are most at risk.

10 Ways to Stay Safe in Extreme Heat

  1. Drink lots of water, even if you’re not thirsty.
  2. Stay inside during the hottest part of the day.
  3. Use air conditioning or go to a cooling center.
  4. Wear light, loose clothes in light colors.
  5. Never leave kids or pets in a parked car.
  6. Check on older neighbors and people who live alone.
  7. Close curtains to keep your home cooler.
  8. Know the signs of heat illness: dizziness, nausea, confusion. Get help right away.
  9. Sign up for SMC Alert.
  10. Prepare for power outages—heat can overload the power grid.

Use These Links to Find Cooling Centers and Heat Safety Information

Explore these resources to help you prepare for and respond to extreme heat. From local cooling options to state and national guidance, these links provide quick access to trusted information.

County Resources
  • SMC Alert
  • Cooling Centers – San Mateo County Libraries (link only works when cooling centers are open)
  • Department of Public Works Emergency Information Line: call 650-363-4100 (24/7)
State Resources
Other Resources