Xi'an weather and climate: what to expect each month
Xi'an has a sharp four-season continental climate: cold, dry winters (Dec–Feb), hot, humid summers (Jun–Aug) with most of the year's rain, and short, mild spring and autumn windows that are easily the best time to visit. Air quality has improved steadily over the past decade — 2025 had a record 274 good-air days and PM2.5 below 40 µg/m³ for the first time — though winter heating still brings hazier spells. Here are the month-by-month norms, what to wear, and how it should shape your dates.