Yi'an weather history, September 2023

The month at a glance

Recorded day by day for Yi'an in September 2023: conditions, high and low temperature, wind, and sunrise and sunset times. History pages show archived readings, so they never change.

Warmest day

34 °C

Coldest day

18 °C

Average

25 °C

Days recorded

Calendar

Mo	Tu	We	Th	Fr	Sa	Su
				09-01 Overcast to Cloudy 20 °C to 28 °C 05:44 18:33	09-02 Overcast 22 °C to 29 °C 05:45 18:32	09-03 Overcast to Cloudy 23 °C to 27 °C 05:45 18:30
09-04 Cloudy 23 °C to 30 °C 05:46 18:29	09-05 Light rain to Sunny 24 °C to 30 °C 05:47 18:28	09-06 Overcast to Sunny 24 °C to 31 °C 05:47 18:27	09-07 Overcast to Sunny 23 °C to 32 °C 05:48 18:25	09-08 Cloudy to Sunny 22 °C to 33 °C 05:48 18:24	09-09 Overcast to Cloudy 22 °C to 33 °C 05:49 18:23	09-10 Cloudy 23 °C to 34 °C 05:49 18:22
09-11 Overcast 24 °C to 33 °C 05:50 18:20	09-12 Overcast to Moderate rain 22 °C to 26 °C 05:51 18:19	09-13 Moderate rain to Light rain 21 °C to 22 °C 05:51 18:18	09-14 Light rain to Overcast 20 °C to 23 °C 05:52 18:17	09-15 Overcast to Cloudy 20 °C to 26 °C 05:52 18:15	09-16 Overcast to Cloudy 21 °C to 29 °C 05:53 18:14	09-17 Overcast to Cloudy 23 °C to 32 °C 05:53 18:13
09-18 Overcast 24 °C to 33 °C 05:54 18:11	09-19 Overcast to Light rain 24 °C to 34 °C 05:55 18:10	09-20 Heavy rain to Light rain 21 °C to 25 °C 05:55 18:09	09-21 Heavy rain to Light rain 19 °C to 21 °C 05:56 18:08	09-22 Light rain 20 °C to 23 °C 05:56 18:06	09-23 Overcast 18 °C to 20 °C 05:57 18:05	09-24 Overcast to Cloudy 20 °C to 25 °C 05:57 18:04
09-25 Overcast 21 °C to 25 °C 05:58 18:02	09-26 Overcast to Cloudy 21 °C to 27 °C 05:59 18:01	09-27 Overcast to Cloudy 22 °C to 27 °C 05:59 18:00	09-28 Overcast to Cloudy 23 °C to 28 °C 06:00 17:59	09-29 Overcast to Light rain 22 °C to 30 °C 06:00 17:57	09-30 Light rain to Overcast 20 °C to 23 °C 06:01 17:56

09-01

Overcast to Cloudy

20 °C to 28 °C

05:44 18:33

09-02

Overcast

22 °C to 29 °C

05:45 18:32

09-03

Overcast to Cloudy

23 °C to 27 °C

05:45 18:30

09-04

Cloudy

23 °C to 30 °C

05:46 18:29

09-05

Light rain to Sunny

24 °C to 30 °C

05:47 18:28

09-06

Overcast to Sunny

24 °C to 31 °C

05:47 18:27

09-07

Overcast to Sunny

23 °C to 32 °C

05:48 18:25

09-08

Cloudy to Sunny

22 °C to 33 °C

05:48 18:24

09-09

Overcast to Cloudy

22 °C to 33 °C

05:49 18:23

09-10

Cloudy

23 °C to 34 °C

05:49 18:22

09-11

Overcast

24 °C to 33 °C

05:50 18:20

09-12

Overcast to Moderate rain

22 °C to 26 °C

05:51 18:19

09-13

Moderate rain to Light rain

21 °C to 22 °C

05:51 18:18

09-14

Light rain to Overcast

20 °C to 23 °C

05:52 18:17

09-15

Overcast to Cloudy

20 °C to 26 °C

05:52 18:15

09-16

Overcast to Cloudy

21 °C to 29 °C

05:53 18:14

09-17

Overcast to Cloudy

23 °C to 32 °C

05:53 18:13

09-18

Overcast

24 °C to 33 °C

05:54 18:11

09-19

Overcast to Light rain

24 °C to 34 °C

05:55 18:10

09-20

Heavy rain to Light rain

21 °C to 25 °C

05:55 18:09

09-21

Heavy rain to Light rain

19 °C to 21 °C

05:56 18:08

09-22

Light rain

20 °C to 23 °C

05:56 18:06

09-23

Overcast

18 °C to 20 °C

05:57 18:05

09-24

Overcast to Cloudy

20 °C to 25 °C

05:57 18:04

09-25

Overcast

21 °C to 25 °C

05:58 18:02

09-26

Overcast to Cloudy

21 °C to 27 °C

05:59 18:01

09-27

Overcast to Cloudy

22 °C to 27 °C

05:59 18:00

09-28

Overcast to Cloudy

23 °C to 28 °C

06:00 17:59

09-29

Overcast to Light rain

22 °C to 30 °C

06:00 17:57

09-30

Light rain to Overcast

20 °C to 23 °C

06:01 17:56

Day by day

Date	Conditions	Temperature	Wind	Sunrise and sunset
Friday 1 September	Overcast to Cloudy	20 °C to 28 °C	Northeast force 3-4	05:44 / 18:33
Saturday 2 September	Overcast	22 °C to 29 °C	Northeast force 3-4	05:45 / 18:32
Sunday 3 September	Overcast to Cloudy	23 °C to 27 °C	Northeast force 3-4	05:45 / 18:30
Monday 4 September	Cloudy	23 °C to 30 °C	East to Northeast force 3-4	05:46 / 18:29
Tuesday 5 September	Light rain to Sunny	24 °C to 30 °C	Northeast force 3-4	05:47 / 18:28
Wednesday 6 September	Overcast to Sunny	24 °C to 31 °C	East to Northeast force 3-4	05:47 / 18:27
Thursday 7 September	Overcast to Sunny	23 °C to 32 °C	Northeast to East force 3-4	05:48 / 18:25
Friday 8 September	Cloudy to Sunny	22 °C to 33 °C	North to East force 3-4	05:48 / 18:24
Saturday 9 September	Overcast to Cloudy	22 °C to 33 °C	Northeast to East force 3-4	05:49 / 18:23
Sunday 10 September	Cloudy	23 °C to 34 °C	North to East force 3-4	05:49 / 18:22
Monday 11 September	Overcast	24 °C to 33 °C	East to Northeast force <3	05:50 / 18:20
Tuesday 12 September	Overcast to Moderate rain	22 °C to 26 °C	Northeast to North force 3-4	05:51 / 18:19
Wednesday 13 September	Moderate rain to Light rain	21 °C to 22 °C	North force 3-4	05:51 / 18:18
Thursday 14 September	Light rain to Overcast	20 °C to 23 °C	Northeast force 3-4	05:52 / 18:17
Friday 15 September	Overcast to Cloudy	20 °C to 26 °C	North to East force <3	05:52 / 18:15
Saturday 16 September	Overcast to Cloudy	21 °C to 29 °C	Northwest to Southeast force 3-4	05:53 / 18:14
Sunday 17 September	Overcast to Cloudy	23 °C to 32 °C	West to Southeast force 3-4	05:53 / 18:13
Monday 18 September	Overcast	24 °C to 33 °C	Southwest to South force 3-4	05:54 / 18:11
Tuesday 19 September	Overcast to Light rain	24 °C to 34 °C	North to South force <3	05:55 / 18:10
Wednesday 20 September	Heavy rain to Light rain	21 °C to 25 °C	Northwest to Northeast force 3-4	05:55 / 18:09
Thursday 21 September	Heavy rain to Light rain	19 °C to 21 °C	North to Northeast force 3-4	05:56 / 18:08
Friday 22 September	Light rain	20 °C to 23 °C	Northeast to East force 3-4	05:56 / 18:06
Saturday 23 September	Overcast	18 °C to 20 °C	Northeast force 3-4	05:57 / 18:05
Sunday 24 September	Overcast to Cloudy	20 °C to 25 °C	East to North force <3	05:57 / 18:04
Monday 25 September	Overcast	21 °C to 25 °C	North force <3	05:58 / 18:02
Tuesday 26 September	Overcast to Cloudy	21 °C to 27 °C	Northeast force <3	05:59 / 18:01
Wednesday 27 September	Overcast to Cloudy	22 °C to 27 °C	Northwest to Northeast force 3-4	05:59 / 18:00
Thursday 28 September	Overcast to Cloudy	23 °C to 28 °C	North to Northeast force 3-4	06:00 / 17:59
Friday 29 September	Overcast to Light rain	22 °C to 30 °C	Northwest to North force <3	06:00 / 17:57
Saturday 30 September	Light rain to Overcast	20 °C to 23 °C	North to Northeast force 3-4	06:01 / 17:56

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About this data

History pages list the daily readings WuAi Weather archives from public meteorological feeds. They record what was measured in the past, they are not a forecast, and they are provided for reference only.

How to read this forecast

A short guide to Yi'an: what these numbers mean and how to plan around them.

Why one day shows two conditions

Forecasts split the day into daytime and night. The daily table gives both, with separate wind, so you know what to expect on the way out and on the way home.

What "to" means between two conditions

In "light rain to moderate rain" the word "to" describes a change during the day, not two things happening at once. Pack for the stronger half.

When the high and low actually happen

The daily maximum usually falls between 14:00 and 16:00, and the minimum around sunrise. Mornings feel colder than the headline number, so dress for the low.

Far forecasts are a trend, not a promise

Days 1 to 3 are reliable. Days 7 to 15 shift as systems are re-run, so treat them as a direction and re-check three days before anything important.

Reading wind force

Force is the Beaufort-style scale used by the source service. Up to 4 it barely matters; 5 to 6 makes an umbrella awkward and cycling unstable; 7 and above is when outdoor work, scaffolding and small boats should stop.

AQI is not PM2.5

AQI blends several pollutants, PM2.5 is one measurement. 0 to 50 is excellent, 51 to 100 good, and above 150 sensitive groups should cut hard outdoor exercise; above 200 consider a mask and keep windows shut.

The precipitation figure

The current reading is accumulated rainfall in millimetres over the recent period. Around 10 mm means moderate to heavy rain and puddles, so leave extra time.

Using historical weather

From the city page open History and choose a month to see day-by-day recorded conditions. Historical archives and live forecasts are produced on different pipelines, so small differences are normal.

Frequently asked questions

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Current and hourly data is normally refreshed about every 15 minutes, and the daily forecast once a day. If a number looks frozen, reload the page.

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Short range is accurate, long range is a tendency. Use days 7 to 15 for the shape of the week rather than an exact figure and confirm close to your travel date.

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