Spring (March to May): Temperatures gradually pick up in spring, with average temperatures ranging from 10°C to 20°C. The temperature of the spring season is usually between 10°C and 20°C, with the average temperature between 10°C and 20°C. The days are warm and pleasant and the nights are slightly cooler. Spring is one of Hangzhou's rainy seasons, with more precipitation and rainy weather, but there are also sunny days. Everything is revived and spring is in full bloom in Hangzhou, making it suitable for outdoor activities such as flower viewing and trekking. However, due to the high rainfall, you need to pay attention to carrying rain gear when traveling.

Summer (June to August): Summer temperatures are high, with average temperatures ranging from 25℃ to 35℃, and extreme high temperatures reaching over 40℃. Summer is the rainy season and typhoon season in Hangzhou, with heavy precipitation and many thunderstorms, rainstorms and other strong convective weather. Hangzhou in summer is hot and humid, and attention needs to be paid to prevent heatstroke and dampness and mold. At the same time, due to the frequency of strong convective weather, travel need to pay attention to the weather forecast and take safety precautions.

Autumn (September to November): Temperatures gradually drop in the fall, with average temperatures ranging from 15°C to 25°C, but still warmer during the day. Precipitation is moderate in the fall, with mainly rainy weather, but significantly less than in the summer. Hangzhou's high and pleasant climate in the fall makes it a prime season for tourism and outdoor activities. The autumn colors in Hangzhou are also very charming at this time, which is suitable for enjoying the autumn scenery and tastes.

Winter (December to February): Temperatures are cooler in winter, averaging between 5°C and 10°C, but occasionally a cold snap will hit, causing temperatures to plummet. Winter precipitation is low, with mainly overcast and cold weather, and occasional snow or sleet. Hangzhou in winter is cold and dry, so you need to pay attention to keep warm and protect yourself from the cold. At the same time, due to the cloudy and foggy weather, travelers need to pay attention to traffic safety.