Climate averages 1991–2020

Yancheng weather
in May.

A warm, wet month: the 5th warmest and the 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 25.2°C Daytime mean, May
Average low 14.8°C Night-time mean, May
Rainfall 92 mm 8 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Yancheng · average highYear overview

May is a warm month in Yancheng: daytime highs average 25.2°C and nights cool to about 14.8°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 92 mm of rain on roughly 8 days, which makes May a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 52 min on an average May day.

The nearest other city in this atlas is Dazhong (33 km away). In May its highs average 24.3°C, 1.0°C cooler than Yancheng, with 91 mm of rain.

Among the 884 cities listed in China, Yancheng ranks joint 551st of 884 for the warmest May highs and joint 456th of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Yancheng is level with that mean.

From May to June, average highs rise by 3.2°C to 28.4°C, and monthly rainfall rises from 92 mm to 159 mm.

The annual picture

May in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Yancheng climate table

1991–2020
Monthly climate averages for Yancheng, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 6.9°C-1.7°C-1.7°C385.710.210 h
February 9.2°C-0.4°C-0.4°C396.511.011 h
March 13.8°C3.5°C3.5°C577.312.012 h
April 20.0°C9.0°C9.0°C666.913.013 h
May, selected 25.2°C14.8°C14.8°C928.413.914 h
June 28.4°C19.4°C19.4°C15910.214.314 h
July 30.7°C23.9°C23.9°C24616.314.114 h
August 30.0°C23.7°C23.7°C18615.513.413 h
September 26.3°C18.9°C18.9°C938.412.412 h
October 21.7°C12.9°C12.9°C496.011.411 h
November 15.7°C6.7°C6.7°C526.110.510 h
December 9.2°C0.4°C0.4°C325.010.010 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

May in nearby cities

Distance from Yancheng

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Yancheng) is explained once on the Yancheng year overview and on the Sources, method and limits page.