Weather & What to Pack — Shanghai in April

Mid-April in Shanghai runs mild and genuinely spring-like — averages around 16-17°C, climbing toward the low-20s by month's end, with daytime highs regularly hitting 20°C or warmer. Rain is the detail that actually matters for planning: roughly 90mm falls across the month over 10-12 rainy days, usually light and short rather than a dramatic downpour, but frequent enough that a wet session is a real possibility across a three-day weekend. Humidity sits around 75%, enough to make a mild temperature feel heavier than the number suggests, and skies are overcast or cloudy more often than not.

Pack for that mix rather than a single average. A packable rain shell beats a full umbrella — easier to manage in a grandstand crowd, and April's rain is rarely heavy enough to need more. Bring layers: a light jacket or fleece for cooler mornings and evenings, with something breathable underneath for warmer, humid afternoons. Closed, comfortable walking shoes matter more than anything else — you're on your feet across a full session day, possibly on wet concrete. Pack a few pairs of socks in different thicknesses too, so you can adjust for a cooler, damp morning versus a warmer, humid afternoon without changing shoes. Sunglasses and a light hat are still worth packing even with the cloud cover, since Shanghai's spring sun does break through, and a reusable water bottle helps with the humidity. If your seat is in an uncovered grandstand or general admission, treat the rain layer as essential rather than optional.

Grandstand A, H, and K are covered structures; Grandstand B and general admission areas offer no reliable shelter. Pack based on where you're actually sitting, not just the citywide forecast.