Climate averages 1991–2020

Jimo weather
in September.

A warm, moderately wet month: the 4th warmest and the joint 9th driest of the year. Meets the pleasant-weather rule

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

Average high 25.4°C Daytime mean, September
Average low 18.2°C Night-time mean, September
Rainfall 69 mm 6 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Jimo · average highYear overview

September is a warm month in Jimo: daytime highs average 25.4°C and nights cool to about 18.2°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 69 mm of rain on roughly 6 days, which makes September a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.

The nearest other city in this atlas is Jiangshan (33 km away). In September its highs average 25.8°C, about as warm as Jimo, with 65 mm of rain.

Among the 884 cities listed in China, Jimo ranks joint 574th of 884 for the warmest September highs and joint 260th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Jimo is 0.3°C cooler than that mean.

From September to October, average highs fall by 5.5°C to 19.9°C, and monthly rainfall falls from 69 mm to 31 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. -10-505101520253035 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 2000

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

Every month, side by side

Jimo climate table

1991–2020
Monthly climate averages for Jimo, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 3.8°C-4.2°C-4.2°C9.42.110.010 h
February 6.2°C-2.7°C-2.7°C153.110.811 h
March 11.2°C1.7°C1.7°C224.011.912 h
April 17.3°C7.8°C7.8°C364.913.113 h
May 22.8°C13.7°C13.7°C586.114.114 h
June 26.4°C18.8°C18.8°C696.414.615 h
July 28.8°C23.0°C23.0°C17611.914.414 h
August 28.7°C23.0°C23.0°C16312.713.514 h
September, selected 25.4°C18.2°C18.2°C696.212.412 h
October 19.9°C11.8°C11.8°C314.511.311 h
November 12.5°C4.7°C4.7°C284.210.310 h
December 5.7°C-1.8°C-1.8°C122.69.710 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

September in nearby cities

Distance from Jimo

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