Yiwu Weather in May

May marks a transition period in Yiwu, Zhejiang Province, China, from the mild spring to the hotter summer months. This time of the year is characterized by warm temperatures, increased humidity, and moderate rainfall. It is a popular month for visitors due to the pleasant weather conditions before the peak summer heat sets in.

Weather Overview

May in Yiwu, China, offers a pleasant transition from spring to summer, characterized by warm temperatures, moderate rainfall, and increasing humidity. The average temperature ranges from 17°C (63°F) to 27°C (81°F), with daytime warmth and cooler nights. The city experiences around 140 mm (5.5 inches) of rainfall spread over 12 to 15 days, with humidity levels ranging from 70% to 80%. Despite occasional showers, Yiwu enjoys significant sunshine and long daylight hours. Light to moderate winds from the southeast bring mild and moist air, contributing to the overall comfortable climate. Whether visiting for business or leisure, May’s weather in Yiwu provides an ideal setting for outdoor activities, exploration, and enjoying the city’s many attractions.

Year Average Temperature (°C) Precipitation (mm) Sunny Days
2012 22.7 137.6 10
2013 22.8 144.3 10
2014 23.0 163.9 9
2015 23.1 131.4 11
2016 23.2 141.2 10
2017 23.4 124.7 10
2018 23.3 119.5 10
2019 23.1 134.6 10
2020 23.6 120.4 11
2021 23.3 135.9 9
2022 22.9 145.3 10


Average Temperature

In May, Yiwu experiences a considerable rise in temperatures compared to the cooler spring months. The average temperature ranges from approximately 17°C (63°F) to 27°C (81°F). These temperatures create a warm and comfortable environment, ideal for various outdoor activities and exploring the city.

Daytime and Nighttime Temperature

  • Daytime: During the daytime, temperatures often reach between 24°C (75°F) and 27°C (81°F). The warmth during the day is generally pleasant and not overly oppressive, making it an excellent time for outdoor activities and sightseeing.
  • Nighttime: Nighttime temperatures are cooler but still comfortable, averaging between 17°C (63°F) and 20°C (68°F). The cooler nights provide a respite from the daytime warmth, allowing for a restful sleep without the need for extensive cooling measures.



May in Yiwu is characterized by moderate rainfall, with an average of about 140 mm (5.5 inches) spread over approximately 12 to 15 days. The rain is typically less intense than in the summer months, but occasional showers and thunderstorms are common. The rainfall helps to maintain the lush greenery of the region and can provide a refreshing break from the warmer temperatures.


Humidity levels in May start to rise, ranging from 70% to 80%. While the humidity is noticeable, it is not as intense as during the peak summer months. The increasing humidity combined with the warmer temperatures can create a slightly muggy atmosphere, but it remains generally comfortable.

Sunshine and Daylight

Daylight Hours

May enjoys long daylight hours in Yiwu, with the sun rising around 5:20 AM and setting around 6:50 PM, providing approximately 13.5 hours of daylight each day. These extended daylight hours offer ample time for activities and exploration, although it’s essential to consider the potential for afternoon showers.


Despite the moderate rainfall, Yiwu experiences a significant amount of sunshine in May. Clear and sunny days are frequent, interspersed with cloudy periods and occasional rain showers. The balance of sunshine and rain creates a pleasant and dynamic climate, ideal for enjoying the city’s attractions.


Wind Speed and Direction

The wind in Yiwu during May is generally light to moderate, with an average speed of about 9 km/h (6 mph). The predominant wind direction is from the southeast, bringing mild and moist air from the ocean. Occasionally, stronger gusts may occur during thunderstorms, but they are usually brief and not disruptive.

Activities and Recommendations

Outdoor Activities

May’s weather in Yiwu is conducive to various outdoor activities. The warm temperatures and extended daylight hours provide excellent conditions for exploring the city’s markets, parks, and cultural sites. It’s advisable to carry an umbrella or light raincoat due to the possibility of showers. Staying hydrated and wearing light, breathable clothing can help manage the increasing humidity.

Clothing Recommendations

Given the warm and slightly humid conditions, lightweight, breathable clothing made from natural fibers like cotton or linen is recommended. Layering can be useful to adjust to the varying temperatures between day and night. A hat, sunglasses, and sunscreen are essential for sun protection during the sunny parts of the day.

Yiwu Weather in May

Sourcing Products in Yiwu During May

For individuals looking to source products in Yiwu during May, there are several factors to consider in addition to the weather conditions. As the city embraces the warmth of spring, businesses may experience shifts in activity levels and consumer demand. It’s essential to stay informed about market trends and seasonal changes in demand to make strategic decisions about product sourcing and inventory management.

Additionally, May marks the beginning of the trade fair season in Yiwu, with numerous exhibitions and trade shows taking place throughout the month. These events provide valuable opportunities for networking, product showcasing, and business expansion. It’s important for individuals sourcing products in Yiwu to plan ahead and participate in relevant trade fairs to maximize exposure and opportunities for collaboration.

Furthermore, as the weather becomes more favorable for outdoor activities and events in May, businesses may have opportunities to organize promotional events or product launches. Taking advantage of these opportunities can help businesses attract customers and generate interest in their products. However, it’s important to consider logistical considerations and plan ahead to ensure the success of these events.

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