Xinying weather in September

In September, Xinying sees average daytime highs of 31°C and overnight lows near 25°C, with 190 mm of rain across 12.9 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Xinying's 8th-clearest and 11th-windiest month. For the whole year in context, see Xinying's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
25°
9th coldest
Rainfall
190 mm
12.9 wet days
Daylight
12 h 06 min
5:49 AM – 5:57 PM
Cloud cover
63%
8th clearest
Wind
9 km/h
11th windiest
Solar energy
5.01 kWh/m²
Travel score
4.3
out of 10

Xinying is A district in Tainan City, Taiwan.

Density
1,945/km²
people per km²
Founded
1981

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Xinying reaches about 31°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253025
263025
273025
283025
293025
303025

How September really feels in Xinying

Once humidity and wind are folded in, September averages 30 days 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
30
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.

Xinying weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 15°637.810.77.3
Feb23° / 16°659.111.27.0
Mar25° / 18°9111.511.86.7
Apr27° / 21°16413.312.55.8
May29° / 24°33718.113.14.3
Jun31° / 26°41520.413.43.2
Jul32° / 26°30619.813.33.2
Aug31° / 26°4072112.83.2
Sep31° / 25°19012.912.14.3
Oct29° / 23°504.811.56.2
Nov27° / 20°435.410.97.4
Dec24° / 17°576.910.67.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23070
33070
43367
53367
63367
73664
83763
93961
104060
114258
124357
134555
144654
154753
164852
174951
185050
195149
205248
215347
225347
235545
245644
255743
265842
275941
285941
296040
306139

Chance of precipitation in September

Any precipitation

Xinying gets around 190 mm of rain over 12.9 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 43% and peaks near 64% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
164
264
362
461
559
657
755
853
951
1049
1147
1245
1344
1442
1541
1640
1739
1838
1937
2036
2135
2234
2333
2432
2531
2630
2729
2828
2927
3026

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1011584
2011683
3011782
4011881
5011980
6012079
7012178
8022276
9022375
10032572
11032671
12032770
13042967
14043066
15053263
16053362
17063559
18063658
19063856
20073954
21074152
22084250
23084348
24094447
25094545
260104644
271114742
281114740
291124839
301134937

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 30 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over September. Sunrise moves from 5:44 AM to 5:54 AM, and sunset from 6:13 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:446:13
212.55:456:12
312.45:456:11
412.45:456:10
512.45:466:09
612.45:466:08
712.35:466:07
812.35:476:06
912.35:476:04
1012.35:476:03
1112.25:476:02
1212.25:486:01
1312.25:486:00
1412.25:485:59
1512.25:495:58
1612.15:495:57
1712.15:495:56
1812.15:505:55
1912.15:505:54
2012.05:505:53
2112.05:515:52
2212.05:515:51
2312.05:515:50
2411.95:525:49
2511.95:525:48
2611.95:525:46
2711.95:535:45
2811.95:535:44
2911.85:535:43
3011.85:545:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.01 kWh/m².

For context, solar energy here swings from a low near 3.48 kWh/m² to a high of 5.64 kWh/m² in April across the year — September's 5.01 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Hazard calendar for Xinying

In seasonPeak

In September, Xinying sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Xinying sits in the Pacific typhoon belt; the season peaks July–October.

Xinying's monsoon runs May–September, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Xinying?

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

4.3
Sightseeing
8th-best month of the year
6.2
Beach & pool
4th-best month of the year

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

What to pack for Xinying in September

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

In September, Xinying sees daytime highs around 31°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Xinying in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in July at about 29°C and coldest in January near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar23Refreshing
Apr25Warm
May27Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov25Warm
Dec23Refreshing

UV index in Xinying in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Xinying peaks around June 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeExtremeVery highHighJun 16UV 12Dec 20UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr9Very high
May9Very high
Jun12Extreme
Jul9Very high
Aug12Extreme
Sep10Very high
Oct8Very high
Nov7High
Dec6High

Air quality in Xinying 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 Xinying is worst in March — around 48 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (July, 27 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorMar 1848 µg/m³Jul 1828 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb44Poor
Mar48Poor
Apr46Poor
May38Poor
Jun30Moderate
Jul27Moderate
Aug29Moderate
Sep38Poor
Oct40Poor
Nov40Poor
Dec36Poor
Location & terrain

Where is Xinying?

Xinying sits at 23.3°N, 120.3°E, 19 m above sea level, in Taiwan. The nearest listed city is Taibao, 17 km away.

Chiayi CityYujingXingangBeigangYongkangTainan

Topography around Xinying

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

Within 3 km, the terrain around Xinying has only modest variations in elevation — a maximum elevation change of 23 m around an average of 14 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 273 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,887 m.

The land around Xinying is covered by cropland (42%) and artificial surfaces (37%) within 3 km, cropland (50%) and trees (24%) within 16 km, and trees (40%) and water (40%) within 80 km.

3 km
23 m
16 km
273 m
80 km
3,887 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Taibao 17 km · Budai 17 km · Chiayi City 24 km · Yujing 25 km · Xingang 28 km · Beigang 29 km · Yongkang 32 km · Tainan 37 km

Taiwan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
110 / 220 V · 60 Hz
Happiness
6.7 / 10
World Happiness, 2025
Religion
Buddhist 35%Taoist 33%none or unspecified 18%folk religion approximately 10%

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 Xinying (23.3069°, 120.3106°, elevation 19 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).