The hottest temperature ever recorded at Disneyland in Anaheim occurred on July 6, 2018, when the thermometer reached a blistering 114°F (45.5°C). This historic heatwave forced the park to temporarily close several outdoor attractions like Big Thunder Mountain and led to a significant drop in attendance as guests retreated to air-conditioned hotels. Even the Disney apps crashed that day due to the extreme demand for information. While Anaheim is typically known for its mild "Mediterranean" climate, summer spikes above 100°F have become more common in the 2020s. For 2026 visitors, Disneyland often issues "Heat Advisories" on such days, encouraging guests to stay hydrated and utilize indoor shows like The Enchanted Tiki Room or Great Moments with Mr. Lincoln to escape the intense Southern California sun.