Cool
Average highs are around 18°C, so pack for cooler days.
September verdict
Three parallel rivers, China in September
Weather score34Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 4.9h per day, so this is not one of the brighter months. Rainfall averages 91mm, so some wet days are possible.
September weather
Monthly averages
Temp
18°C
Rain
91mm
Sun
4.9h
Weather score
34
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 91mm, so some wet days are possible.
Limited sun
Sunshine averages 4.9h per day, so this is not one of the brighter months.
Map
Weather map
Compare Three parallel rivers, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September18°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September91mm average rain
September sits near Three parallel rivers' yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February, May, and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September4.9 hours average sun
September is below Three parallel rivers' yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to April and November to December
This stretch has the strongest sunshine in the monthly averages.
Weather score
September34 weather score
September scores below Three parallel rivers' yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to February, May, and November to December
These months have the strongest weather score in the monthly averages.
