Los Angeles Weather in August 2026

August in Los Angeles runs hot and bone-dry, with daytime highs reaching 32.1C (90F) and overnight lows around 18.3C (65F). Rainfall barely registers at 9mm across roughly 0.6 rainy days, while sunshine averages 12.3 hours per day, longer than most European capitals see in mid-summer. Humidity stays low compared to East Coast cities, but the inland Valley routinely runs 8-10 degrees hotter than Santa Monica, and the marine layer that saved June mornings has retreated offshore by now.

On the ground, this is when the city splits geographically by micro-climate strategy. Locals migrate to El Matador tide pools by 7am or hide in Grand Central Market until the westside ocean breeze kicks in around 4pm. The Hollywood Bowl summer season peaks with weekend concerts, and the Sunset Junction stretch between Silver Lake and Echo Park stays lively until midnight because the pavement finally cools. Museum days at LACMA and the Getty double as air-conditioning refuges, and rooftop pools at DTLA hotels sell out three weeks ahead.

The ten-year trend shows August highs creeping up roughly 0.8C since 2016, with more days breaking 35C (95F) inland and marine-layer relief arriving later in the morning. NOAA seasonal outlooks for 2026 favour continued above-average warmth, and the ENSO-neutral pattern predicted for late summer suggests fire-weather advisories will start appearing by late month across Angeles National Forest ridges.

For 2026 travelers, August rewards early risers and late finishers: aquarium visits by 9am, canyon hikes wrapped by 10, and dinner reservations pushed to 8:30pm when Santa Monica finally drops below 24C. Book coastal-side hotels rather than Hollywood proper if the temperature spread matters, and expect Runyon Canyon and Griffith trailheads to close on any red-flag warning day in 2026.