Climate averages 1991–2020

Ya'an weather
in July.

A warm, very wet month: the warmest and the 11th driest of the year.

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

Average high 27.7°C Daytime mean, July

Average low 21.6°C Night-time mean, July

Rainfall 284 mm 22 days with ≥1 mm

Daylight 14 h Sunrise to sunset, per day

July is a warm month in Ya'an: daytime highs average 27.7°C and nights cool to about 21.6°C. By daytime temperature it is the warmest month of the year.

Expect about 284 mm of rain on roughly 22 days, which makes July a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 52 min on an average July day.

The nearest other city in this atlas is Meishan (81 km away). In July its highs average 30.0°C, 2.3°C warmer than Ya'an, with 253 mm of rain.

Among the 884 cities listed in China, Ya'an ranks joint 724th of 884 for the warmest July highs and joint 852nd of 884 for the driest July (rainfall, lowest first). The mean July high of those 884 cities is 30.0°C; Ya'an is 2.3°C cooler than that mean.

From July to August, average highs fall by 0.4°C to 27.3°C, and monthly rainfall rises from 284 mm to 329 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

Ya'an climate table

1991–2020

Monthly climate averages for Ya'an, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	8.3°C2.7°C	2.7°C	45	12.9	10.410 h
February	10.8°C4.5°C	4.5°C	52	13.4	11.111 h
March	15.2°C8.1°C	8.1°C	76	15.2	12.012 h
April	20.2°C12.7°C	12.7°C	104	15.3	12.913 h
May	23.5°C16.5°C	16.5°C	129	17.1	13.614 h
June	26.0°C19.8°C	19.8°C	168	18.2	14.014 h
July, selected	27.7°C21.6°C	21.6°C	284	22.0	13.914 h
August	27.3°C21.3°C	21.3°C	329	22.5	13.213 h
September	23.4°C18.8°C	18.8°C	197	20.5	12.412 h
October	18.7°C14.6°C	14.6°C	119	20.4	11.511 h
November	14.6°C9.8°C	9.8°C	76	15.5	10.711 h
December	9.8°C4.4°C	4.4°C	44	12.4	10.310 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 Ya'an

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 Ya'an) is explained once on the Ya'an year overview and on the Sources, method and limits page.