Weather in Guiyang in September 2025
Average weather
Average temperature in Guiyang in September
The temperature in September is +81°F on average, with a range between a maximum of +86°F during the day and a minimum of +59°F at night.
The average maximum temperature goes up 20% by the end of the month, compared with the beginning of the month, from +79°F to +84°F.
Is Guiyang warm or cold in September?
Guiyang is typically warm in September.
Maximum temperatures go down compared to the previous month from +81°F to +75°F. The minimum temperature also goes down from +68°F to +63°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Guiyang:
Climate in Guiyang in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +81°F | +75°F | +66°F | ||||
| Min. temperature | ||||||
| +57°F | +50°F | +39°F | ||||
| Max. temperature | ||||||
| +95°F | +91°F | +88°F | ||||
| Rainfall | ||||||
| 145 mm | 121 mm | 124 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 80% | 80% | 83% | ||||
| Air pressure | ||||||
| 1006 HPa | 1012 HPa | 1018 HPa | ||||
| Sunny days | ||||||
| 1 | 3 | 2 | ||||
| Cloudy days | ||||||
| 6 | 7 | 8 | ||||
| Rainy days | ||||||
| 24 | 21 | 21 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +81°F in the day, the average maximum temperature lowers to +75°F. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 145 mm to 121 mm. Humidity levels don’t change as the month goes on, averaging around 80%. The average wind speed doesn’t change much during September, staying around 2 m/s. The good news is there are likely to be more sunny days in September, from 1 to 3.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Guiyang is gradually decreasing during September, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Guiyang?
Climate Change Over the Years
The climate in Guiyang in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1984 (+63°F) and the highest in 2023 (+68°F). The driest year was 2011 with only 935 mm of rainfall, and the wettest year was 1997 with 1958 mm.
FAQ
Is September a good time to visit Guiyang?
Can you sunbathe in Guiyang in September?
Is Guiyang rainy in September?
Is it sunny in Guiyang in September?
Other cities in China
Monthly weather in Guiyang
Source of the data
For this page, we’ve looked at the typical weather in Guiyang, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
