Mild
Average highs are around 22°C, so days are mild rather than hot.
May verdict
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 7.9h per day, enough for a balanced month. Rainfall averages 40mm, which is relatively low for holiday planning.

Monthly averages
Temp
22°C
Rain
40mm
Sun
7.9h
Weather score
59
Good
Mild
Average highs are around 22°C, so days are mild rather than hot.
Drier
Rainfall averages 40mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.9h per day, enough for a balanced month.
Map
Compare Lanzhou, Gansu, China with nearby places by weather score, rain, sun, temperature, and swim conditions.
May22°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to August
This stretch sets the upper range for average daytime heat.
May40mm average rain
May sits near Lanzhou's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May7.9 hours average sun
May is one of Lanzhou's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
May59 weather score
May sits close to Lanzhou's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.