The best time to visit Dongying is during the autumn, particularly from September to November, when the weather is most pleasant.During these months, you'll find comfortable temperatures, typically ranging from 15°C to 25°C, with less humidity and a lower chance of rain compared to the summer. This makes it ideal for exploring the Yellow River Delta National Nature Reserve without the heat and crowds. Birdwatchers, for instance, will appreciate this period as it's prime time for migratory birds.Spring, from March to May, is another good option, with mild temperatures between 10°C and 20°C. This season sees the landscape come to life with blooming flora, particularly in areas like the Dongying Forest Park. It's a lovely time for those who enjoy outdoor activities and photography, though you might encounter occasional spring showers.While summer (June to August) can be hot and humid, with temperatures often exceeding 30°C, it's still a popular time for visitors interested in water activities or the annual Yellow River Estuary International Marathon.