Yancheng weather in May
In May, Yancheng has an average high of 27 °C81 °F and an average low of 14 °C57 °F, with about 76 mm3.0 in of precipitation. It is the 5th warmest month of the year and ranks 5th for precipitation.
How May compares with other months
Compared with April, May is 6 °C10.9 °F warmer on average and wetter by 24 mm0.9 in. Compared with June, May is 4.1 °C7.3 °F cooler on average and drier by 58 mm2.3 in. Daylight lasts about 13.9 hours around the middle of the month. Average relative humidity is 67% and the average cloud amount 68%.
Is May a good time to visit Yancheng?
Yes — May is one of the most comfortable months to visit Yancheng by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in May
For Yancheng in May, pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
May in nearby places
Other months in Yancheng
- January6 °C42 °F / −4 °C26 °F
- February9 °C48 °F / −2 °C29 °F
- March15 °C58 °F / 2 °C35 °F
- April21 °C70 °F / 7 °C45 °F
- May27 °C81 °F / 14 °C57 °F
- June30 °C87 °F / 19 °C65 °F
- July31 °C88 °F / 23 °C74 °F
- August31 °C87 °F / 23 °C73 °F
- September27 °C81 °F / 18 °C64 °F
- October22 °C72 °F / 11 °C52 °F
- November15 °C60 °F / 5 °C40 °F
- December8 °C46 °F / −2 °C29 °F
Frequently asked questions
How warm is Yancheng in May?
In May the average high in Yancheng is 27 °C (81 °F) and the average low is 14 °C (57 °F).
Does it rain a lot in Yancheng in May?
On average about 76 mm (3.0 in) of precipitation falls in May; it ranks 5th of the 12 months.
Is May the warmest month in Yancheng?
No. The warmest month in Yancheng is July, with an average high of 31 °C (88 °F). The coldest month is January, with an average low of -4 °C (26 °F).
How long is the day in Yancheng in May?
In the middle of May the day in Yancheng lasts about 13.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Yancheng in May?
The average relative humidity in May is about 67%. This is a long-term average for the whole day.
How cloudy is Yancheng in May?
On average about 68% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.