yearsofweather

Beijing in September:
warm, only a little rain

Beijing, China · Records from 2006 to 2025. Not a forecast.

Mean high27°Hottest day 35.7° (2019)
Mean low17°Coldest night 7.4° (2016)
Rain days4 days0-8 by year
Rainfall54mmDaylight 13.1 → 11.8 h
Beijing's 12 months iBest: April, May and September
Trip types Sightseeing on foot Goodmild and mostly dry
Humidity65%2 muggy days
Clear days11 days6 overcast days
Mean wind7 km/hRarely windy
Sunrise / sunset (15th)05:55 / 18:24Daylight 13.1 → 11.8 h

Beijing in September

One of the best times in Beijing. The sky is high and clear, the humidity drops, and walking is easy. The Mid-Autumn Festival, on the 15th day of the eighth lunar month, lands in September or early October and brings a holiday. The date moves yearly.

Highs of 27°C and lows of 17°C: short sleeves by day, with mild nights. A 10°C gap between afternoon and night meant dressing twice: once for the day, once for after dark. 4 rain days in a typical September: noticeable, but most days stayed dry. September could skip rain entirely: 1 of 20 years had none, while 2010 had 8 rain days.

Highs passed 30°C on 5 days on average. The warmest year was 2022, with highs averaging 29.6°C, 3.1°C above normal.

Date by date i

‹ August September 2027 October ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-4rain on 18% of days28° 19°
5-11rain on 16% of days28° 18°
12-18rain on 10% of days27° 17°
19-25rain on 14% of days26° 15°
26-30rain on 11% of days24° 14°

0-5/206-8/209-11/2012-20/20

1-4rain on 18% of days28° 19°
5-11rain on 16% of days28° 18°
12-18rain on 10% of days27° 17°
19-25rain on 14% of days26° 15°
26-30rain on 11% of days24° 14°
Tap another date to change

2006none
2007none
2008none
2009none
2010none
2011none
2012none
201322mm
2014none
201534mm
201615mm
2017none
2018none
2019none
2020none
202142mm
2022none
2023none
20246mm
2025none
Holidays in September (2027)
  • September 15 Mid-Autumn Festival *
  • September 6 Labor Day

* Provisional: not yet officially announced.

1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)

Day by day temperature i

12°20°29°37° 1815222930

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
0 d 1 d
2007
0 d 4 d
2008
3 d 6 d
2009
0 d 2 d
2010
1 d 8 d
2011
2 d 3 d
2012
2 d 3 d
2013
1 d 5 d
2014
0 d 5 d
2015
2 d 8 d
2016
1 d 5 d
2017
0 d 1 d
2018
0 d 2 d
2019
2 d 3 d
2020
0 d 5 d
2021
2 d 8 d
2022
0 d 0 d
2023
2 d 3 d
2024
2 d 6 d
2025
2 d 2 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
4
3
2
5
4
2
3
2
5
4
2
2
2
2
1
2
3
2
2
3
2
2
3
4
3
4
1
2
3
1
Rain days on trip
00301221021002020222

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2022 had 0 rain days, 2010 had 8.

Beijing through the year

MonthHighLowRain daysRainfall
January 3°−7°0 days1mm
February 6°−4°2 days7mm
March 14°2°2 days10mm
AprilGood 21°9°3 days22mm
MayGood 27°15°3 days30mm
June 31°20°6 days59mm
July 32°23°9 days191mm
August 31°22°7 days115mm
SeptemberGood 27°17°4 days54mm
October 19°9°3 days26mm
November 11°1°2 days15mm
December 4°−5°1 day1mm

Common questions

Does it rain a lot in Beijing in September?

Over the past 20 years September averaged 4 rain days (1 mm or more) out of 30. Individual years ran from 0 in the driest to 8 in the wettest.

What should I wear in Beijing in September?

Days averaged 27°C and nights 17°C. Pack a light layer for the evenings, T-shirts, and sunscreen plus a hat.

Is September a good time to visit Beijing?

On warmth and rain days alone, Beijing's easiest months were April, May and September. September ranked 2 of 12, close to the top.

How many clear days does Beijing get in September?

About 11 clear days (under 30% cloud on average) and 6 overcast days (80% or more).