Climate averages 1991–2020

Jiangmen weather
in July.

A hot, very wet month: the warmest and the 9th driest of the year.

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

Average high 31.6°C Daytime mean, July

Average low 25.8°C Night-time mean, July

Rainfall 233 mm 22 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

July is a hot month in Jiangmen: daytime highs average 31.6°C and nights cool to about 25.8°C. By daytime temperature it is the warmest month of the year.

Expect about 233 mm of rain on roughly 22 days, which makes July a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 22 min on an average July day.

The nearest other city in this atlas is Shaping (24 km away). In July its highs average 31.6°C, about as warm as Jiangmen, with 215 mm of rain.

Among the 884 cities listed in China, Jiangmen ranks joint 223rd of 884 for the warmest July highs and joint 703rd of 884 for the driest July (rainfall, lowest first). The mean July high of those 884 cities is 30.0°C; Jiangmen is 1.6°C warmer than that mean.

From July to August, average highs fall by 0.2°C to 31.4°C, and monthly rainfall rises from 233 mm to 283 mm.

The annual picture

July 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

Jiangmen climate table

1991–2020

Monthly climate averages for Jiangmen, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	19.2°C11.2°C	11.2°C	32	5.4	10.911 h
February	20.8°C13.2°C	13.2°C	42	7.8	11.411 h
March	23.9°C16.4°C	16.4°C	86	12.7	12.012 h
April	27.2°C20.4°C	20.4°C	164	15.7	12.713 h
May	29.5°C23.4°C	23.4°C	269	21.6	13.213 h
June	30.8°C25.4°C	25.4°C	303	22.7	13.513 h
July, selected	31.6°C25.8°C	25.8°C	233	21.9	13.413 h
August	31.4°C25.6°C	25.6°C	283	24.0	12.913 h
September	30.3°C24.2°C	24.2°C	210	17.6	12.312 h
October	28.2°C20.9°C	20.9°C	71	7.9	11.612 h
November	24.8°C16.7°C	16.7°C	35	5.6	11.111 h
December	20.4°C12.2°C	12.2°C	33	4.3	10.811 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

July in nearby cities

Distance from Jiangmen

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