Heatwaves are periods of unusually high temperatures that last for several days or even weeks. These events are more common in regions with hot climates but can occur anywhere. During a heatwave, temperatures are much higher than normal for the season, often exceeding 90°F (32°C) or more. Heatwaves can be triggered by high-pressure systems that trap warm air in an area. They may also be influenced by factors like climate change, which can make them more frequent and intense.

Mitigation: To reduce the impact of heatwaves, strategies like improving urban planning (e.g., increasing green spaces, using reflective materials in buildings), implementing early warning systems, and providing access to cooling centers for vulnerable populations can help. Public awareness campaigns about the risks of heat and how to stay safe during extreme temperatures are also key to reducing harm.