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Ya'an Weather and Climate: A Comprehensive Guide

The climate in Ya'an is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to cold in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

In Ya'an, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 29°C in July to a chilly 9°C in January.

Nighttime temperatures can drop, with average lows reaching 2°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Ya'an experiences significant rain/snowfall throughout the year, averaging 1704 mm of precipitation annually. The seasons in Ya'an, bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 336 mm of precipitation. This rainfall is distributed across 17 rainy days.

In contrast, the driest month, December, experiences much less rainfall, totaling 52 mm over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Ya'an Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Ya'an

Sun   Dec 22
8°C | 5°C
NE 2 m/s
4.2 mm
overcast and rain

overcast and rain

Mon   Dec 23
9°C | 5°C
E 2 m/s
overcast and no rain

overcast and no rain

Tue   Dec 24
9°C | 5°C
E 2 m/s
2 mm
broken clouds and slight rain

broken clouds and slight rain

The best time of year to visit Ya'an in China

During the months of April, May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is the rainy season in Ya'an?
    Rainy season in Ya'an occurs in the months of June, July, August and September.
  • Which is the warmest month in Ya'an?
    July has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Ya'an?
    The coldest month is January with an average maximum temperature of 9°C.
  • Which is the wettest month in Ya'an?
    August tops the wettest month list with 336 mm of rainfall.
  • Which is the driest month in Ya'an?
    December is the driest month with 52 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.