Climate averages 1991–2020

Chaoyang weather
in September.

A warm, fairly dry month: the 5th warmest and the 8th driest of the year. Meets the pleasant-weather rule

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

Average high 24.6°C Daytime mean, September
Average low 13.0°C Night-time mean, September
Rainfall 38 mm 6 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Chaoyang · average highYear overview

September is a warm month in Chaoyang: daytime highs average 24.6°C and nights cool to about 13.0°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 38 mm of rain on roughly 6 days, which makes September a fairly dry month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 31 min on an average September day.

The nearest other city in this atlas is Beipiao (36 km away). In September its highs average 23.7°C, 0.9°C cooler than Chaoyang, with 36 mm of rain.

Among the 884 cities listed in China, Chaoyang ranks joint 614th of 884 for the warmest September highs and 45th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Chaoyang is 1.1°C cooler than that mean.

From September to October, average highs fall by 7.8°C to 16.8°C, and monthly rainfall falls from 38 mm to 30 mm.

The annual picture

September 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. -15-10-505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

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

Every month, side by side

Chaoyang climate table

1991–2020
Monthly climate averages for Chaoyang, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -2.3°C-12.4°C-12.4°C2.10.79.510 h
February 2.3°C-8.8°C-8.8°C3.31.010.611 h
March 9.4°C-3.4°C-3.4°C122.511.912 h
April 18.0°C3.6°C3.6°C264.813.313 h
May 25.0°C11.3°C11.3°C526.214.514 h
June 28.9°C17.0°C17.0°C9510.915.115 h
July 30.1°C20.4°C20.4°C13612.014.915 h
August 28.8°C19.0°C19.0°C1209.813.814 h
September, selected 24.6°C13.0°C13.0°C385.512.513 h
October 16.8°C4.6°C4.6°C304.411.111 h
November 6.2°C-4.1°C-4.1°C122.49.910 h
December -0.7°C-9.8°C-9.8°C2.81.09.29 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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

September in nearby cities

Distance from Chaoyang

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 Chaoyang) is explained once on the Chaoyang year overview and on the Sources, method and limits page.