Climate averages 1991–2020

Mianzhu, Deyang, Sichuan 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 23.1°C Daytime mean, September

Average low 18.4°C Night-time mean, September

Rainfall 152 mm 18 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

September is a warm month in Mianzhu, Deyang, Sichuan: daytime highs average 23.1°C and nights cool to about 18.4°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 152 mm of rain on roughly 18 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 Luojiang (27 km away). In September its highs average 24.6°C, 1.5°C warmer than Mianzhu, Deyang, Sichuan, with 133 mm of rain.

Among the 884 cities listed in China, Mianzhu, Deyang, Sichuan ranks joint 693rd of 884 for the warmest September highs and joint 758th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Mianzhu, Deyang, Sichuan is 2.6°C cooler than that mean.

From September to October, average highs fall by 4.9°C to 18.2°C, and monthly rainfall falls from 152 mm to 79 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

Mianzhu, Deyang, Sichuan climate table

1991–2020

Monthly climate averages for Mianzhu, Deyang, Sichuan, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	7.3°C2.2°C	2.2°C	33	9.2	10.410 h
February	9.8°C4.3°C	4.3°C	34	9.0	11.111 h
March	14.4°C8.1°C	8.1°C	37	10.7	12.012 h
April	20.0°C12.8°C	12.8°C	53	11.3	12.913 h
May	23.9°C16.7°C	16.7°C	73	12.7	13.714 h
June	26.4°C20.0°C	20.0°C	116	13.2	14.114 h
July	27.8°C21.9°C	21.9°C	230	19.8	14.014 h
August	27.4°C21.6°C	21.6°C	214	18.8	13.313 h
September, selected	23.1°C18.4°C	18.4°C	152	17.6	12.412 h
October	18.2°C14.0°C	14.0°C	79	16.0	11.411 h
November	13.7°C9.3°C	9.3°C	42	10.5	10.611 h
December	8.8°C4.0°C	4.0°C	28	8.7	10.210 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 Mianzhu, Deyang, Sichuan

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 Mianzhu, Deyang, Sichuan) is explained once on the Mianzhu, Deyang, Sichuan year overview and on the Sources, method and limits page.