The high surf and rip currents pose a significant risk to beachgoers in San Luis Obispo and Santa Barbara counties. Swimmers and surfers are advised to exercise caution as these conditions can be life-threatening. The upcoming heat wave is expected to bring dangerous temperatures to interior valleys, with highs nearing 100 °F (38 °C). Coastal areas will also experience above-average temperatures, which could lead to heat-related illnesses if precautions are not taken.