For staying in Chengdu from April 26 to 27: Daytime temperatures will be 15-27°C with occasional showers. Pack light shirts, jackets, and rain gear. When climbing Mount Emei from the 27th to the 28th: Mountain temperatures (especially at Jinding) are lower (5-15°C). Prepare windproof outerwear, thermal underwear, non-slip hiking shoes, and prioritize light, breathable clothing. Carry raincoats for unpredictable mountain weather.