Cool
Average highs are around 18°C, so pack for cooler days.
September verdict
Heihe, China in September
Weather score36Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 6.1h per day, enough for a balanced month. Rainfall averages 66mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
18°C
Rain
66mm
Sun
6.1h
Weather score
36
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 66mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Map
Weather map
Compare Heihe, 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
September66mm average rain
September sits near Heihe's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to May and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.1 hours average sun
September sits close to Heihe's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
September36 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.