Climate averages 1991–2020

Jiangyou weather
in September.

A warm, wet month: the 5th warmest and the 10th driest of the year.

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

Average high 24.3°C Daytime mean, September

Average low 18.6°C Night-time mean, September

Rainfall 164 mm 16 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

September is a warm month in Jiangyou: daytime highs average 24.3°C and nights cool to about 18.6°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 164 mm of rain on roughly 16 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average September day.

The nearest other city in this atlas is Mianyang (33 km away). In September its highs average 25.1°C, 0.8°C warmer than Jiangyou, with 142 mm of rain.

Among the 884 cities listed in China, Jiangyou ranks joint 628th of 884 for the warmest September highs and 772nd of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Jiangyou is 1.3°C cooler than that mean.

From September to October, average highs fall by 4.7°C to 19.6°C, and monthly rainfall falls from 164 mm to 65 mm.

The annual picture

September in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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

Every month, side by side

Jiangyou climate table

1991–2020

Monthly climate averages for Jiangyou, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	8.9°C2.0°C	2.0°C	11	3.6	10.310 h
February	11.4°C4.2°C	4.2°C	15	4.4	11.011 h
March	15.9°C7.8°C	7.8°C	27	6.7	12.012 h
April	21.5°C12.5°C	12.5°C	45	8.0	12.913 h
May	25.4°C16.8°C	16.8°C	74	10.4	13.814 h
June	27.8°C20.2°C	20.2°C	129	12.6	14.214 h
July	29.0°C22.2°C	22.2°C	255	20.3	14.014 h
August	28.6°C21.7°C	21.7°C	215	18.7	13.313 h
September, selected	24.3°C18.6°C	18.6°C	164	16.2	12.412 h
October	19.6°C14.2°C	14.2°C	65	11.5	11.411 h
November	15.0°C8.9°C	8.9°C	27	6.3	10.611 h
December	10.2°C3.5°C	3.5°C	9.9	3.4	10.110 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 Jiangyou

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