Tunxi weather in September

In September, Tunxi sees average daytime highs of 28°C and overnight lows near 20°C, with 88 mm of rain across 10.2 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 25°C by the end. The sky is clear or mostly clear about 29% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Tunxi's 4th-clearest and 2nd-windiest month. For the whole year in context, see Tunxi's year-round climate.

Daytime high
28°
4th warmest
Overnight low
20°
9th coldest
Rainfall
88 mm
10.2 wet days
Daylight
12 h 12 min
5:56 AM – 6:06 PM
Cloud cover
61%
4th clearest
Wind
7 km/h
2nd windiest
Solar energy
4.27 kWh/m²
Travel score
6.0
out of 10

Tunxi is prefecture-level city in Anhui, China.

Density
48/km²
people per km²
Founded
1987

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 25°C by the end.

A typical September day in Tunxi reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 32°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13022
23022
32922
42922
52922
62921
72921
82921
92921
102821
112821
122820
132820
142820
152820
162720
172720
182719
192719
202719
212719
222619
232619
242618
252618
262618
272618
282618
292517
302517

How September really feels in Tunxi

Once humidity and wind are folded in, September averages 1 day that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
1
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Tunxi weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8211.43.110.31.3
Feb10° / 9811.61.910.92.2
Mar15° / 17515.40.511.83.8
Apr21° / 12°21015012.75.4
May25° / 17°23114.9013.55.8
Jun28° / 21°38418.4013.94.7
Jul32° / 24°24415.5013.73.5
Aug31° / 24°16316.4013.13.6
Sep28° / 20°8810.2012.26.0
Oct23° / 14°626.9011.37.3
Nov16° / 778.50.210.55.4
Dec11° / 608.11.310.12.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23961
34060
43961
54060
64060
74159
84159
94357
104258
114357
124357
134456
144456
154456
164555
174654
184753
194654
204753
214753
224852
234852
244852
254852
264852
274852
284951
294951
305050

Chance of precipitation in September

Any precipitation

Tunxi gets around 88 mm of rain over 10.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 48% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
148
247
346
445
544
643
742
841
940
1039
1138
1237
1337
1436
1535
1633
1732
1831
1930
2029
2128
2228
2327
2427
2526
2626
2726
2826
2925
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1121223575
2131424535
3131524525
4141625495
5141726475
6251926445
7251927434
8262027414
9272127394
10382127384
11392227363
123102326353
134112326333
145132326322
155142425302
166152425282
176172525261
187182524241
198192624221
208212624201
219222723191
2210232723171
2311242823150
2412242823130
2513252822120
2614252822100
271526282290
281726282180
291827282070
302027272060

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over September. Sunrise moves from 5:48 AM to 6:04 AM, and sunset from 6:25 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:486:25
212.65:486:24
312.65:496:23
412.55:496:22
512.55:506:20
612.55:506:19
712.45:516:18
812.45:516:17
912.45:526:15
1012.45:536:14
1112.35:536:13
1212.35:546:12
1312.35:546:10
1412.25:556:09
1512.25:556:08
1612.25:566:06
1712.15:566:05
1812.15:576:04
1912.15:576:02
2012.15:586:01
2112.05:596:00
2212.05:595:59
2312.06:005:57
2411.96:005:56
2511.96:015:55
2611.96:015:54
2711.86:025:52
2811.86:025:51
2911.86:035:50
3011.76:045:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.27 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 5.27 kWh/m² in July across the year — September's 4.27 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.0Bright
274.0Bright
284.0Bright
294.0Bright
304.0Moderate
Planning a trip in September

Hazard calendar for Tunxi

In seasonPeak

None of Tunxi's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Tunxi's rainy season runs March–July, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Tunxi?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.0
Sightseeing
2nd-best month of the year
6.5
Beach & pool
1st-best month of the year

September is a reasonable time to visit Tunxi for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tunxi in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Tunxi sees daytime highs around 28°C and nights near 20°C. Pack light clothes. Worth having: rain gear. About 10 days see rain.

light clothesrain gear

UV index in Tunxi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tunxi peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 14UV 11Jan 11UV 3
UV index (midday)Level
Jan3Moderate
Feb6High
Mar6High
Apr8Very high
May9Very high
Jun10Very high
Jul11Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov5High
Dec4Moderate

Air quality in Tunxi in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Tunxi is worst in January — around 63 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (July, 29 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1763 µg/m³Jul 2130 µg/m³
PM2.5 (µg/m³)Level
Jan63Unhealthy
Feb61Unhealthy
Mar61Unhealthy
Apr57Unhealthy
May48Poor
Jun37Poor
Jul29Moderate
Aug32Moderate
Sep38Poor
Oct46Poor
Nov50Poor
Dec61Unhealthy
Location & terrain

Where is Tunxi?

Tunxi sits at 29.7°N, 118.3°E, 134 m above sea level, in China. The nearest listed city is Pingyao, 176 km away.

ShanghaiWuhan

Topography around Tunxi

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tunxi.

Within 3 km, the terrain around Tunxi has only modest variations in elevation — a maximum elevation change of 200 m around an average of 149 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 971 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,760 m.

The land around Tunxi is covered by artificial surfaces (47%) and trees (40%) within 3 km, trees (76%) within 16 km, and trees (93%) within 80 km.

3 km
200 m
16 km
971 m
80 km
1,760 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Pingyao 176 km · Hangzhou 189 km · Nanjing 265 km · Wuxi 280 km · Suzhou 281 km · Ningbo 313 km · Shanghai 345 km · Wuhan 401 km

China travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / I
220 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$13,862
2025
Happiness
6.1 / 10
World Happiness, 2025
Homicide rate
0.5
per 100k, 2020
Road deaths
17.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 464
Religion
unaffiliated 52%folk religion 22%Buddhist 18%Christian 5%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Tunxi (29.7114°, 118.3125°, elevation 134 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).