Nanjing has mild weather in April, with temperatures from 15°C to 31°C, 13 sunny days and lots of cloudy days. You'll see spring rains—3 in total, including heavy rain on April 11—and morning fog sometimes. Air quality is good most days (24 "Good" days), but keep an eye out for rare heavy pollution, like on April 12. It's perfect for outdoor activities: wear a light jacket on cool mornings (8-12°C), and afternoons are warmer so you won't need as much.
| Average Maximum | Average Minimum | Highest Maximum | Lowest Minimum | |
| ℃ | 24.8° | 14.3° | 31° | 8° |
| ℉ | 76.6° | 57.7° | 87.8° | 46.4° |
Sunny: 12 days
Cloudy: 12 days
Rainy: 4 days
Overcast: 2 days
In early April, Nanjing has mild but changeable temperatures—between 8°C and 24°C—with mostly sunny or cloudy days, plus occasional rain. Wear light layers: use a long-sleeve shirt or thin sweater as your base, then pair it with a breathable jacket or windbreaker you can easily take off when it gets warm at noon. For your lower body, jeans or casual pants work well. For sudden rain, don't forget waterproof shoes and a foldable umbrella; if you're sensitive to spring pollen, bring a mask too.
In mid-April, days get warmer (up to 31°C) but nights stay cool (around 9°C); there's some heavy rain too, and rare heavy pollution—like on April 12. Dress light during the day: pick a short-sleeve or thin long-sleeve shirt, and put a lightweight cardigan over it. For nights, add a thicker layer to keep warm. Rainy periods still call for waterproof sneakers. Take a reusable mask for air quality worries, a small umbrella, and a little bag to hold extra layers when afternoons heat up.
Nanjing stays warm in late April, with temperatures from 12°C to 30°C—mostly sunny or cloudy days, and occasional light rain. For daytime, wear breathable clothes: short-sleeve shirts or thin long-sleeves, and only a thin jacket if mornings are cool. Lightweight pants or skirts work for your lower body. Bring comfortable walking shoes if you plan to do outdoor activities. Have a foldable umbrella ready for rain, and a mask if pollen annoys you—this helps make your trip smooth.
April turns Nanjing into a sea of flowers. Late cherry blossoms and banksia roses bloom fully by Xuanwu Lake, and hydrangeas at Wuchao Gate pair perfectly with the Ming City Wall. This month, Hongshan Forest Zoo has the "Bird-Loving Week" event—you can join bird-watching contests and science lectures there. Don't skip spring's fresh local foods: stir-fried artemisia selengensis with dried tofu is crisp and tasty, and chrysanthemum greens and duck egg soup is light and savory, showing the local flavors well.