The extreme humidity and heat are affecting millions of residents in Southern California, disrupting the region's typically mild Mediterranean climate. Coastal areas, including Long Beach and Dana Point, have suffered damage from strong surf and flooding, with homes and infrastructure impacted. These conditions are expected to worsen as El Niño strengthens, potentially leading to more severe weather events. Residents accustomed to cooler evenings are now facing prolonged discomfort and increased reliance on air conditioning.