The extreme heat and humidity pose significant risks, including heat stress and discomfort, particularly for those without access to air conditioning or who work outdoors. Coastal areas are also at risk of dangerous rip currents and high surf, making swimming unsafe. Public health officials have advised against ocean swimming through Wednesday due to potential bacteria spikes caused by recent rainfall. Overnight temperatures will remain high, staying in the 70s (21-26°C) and even reaching the 80s (26-31°C) in foothill areas, offering little relief from the heat.