Taitung weather in September

In September, Taitung sees average daytime highs of 27°C and overnight lows near 25°C, with 341 mm of rain across 21.1 wet days and about 12.1 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 25% of the time in September, and the air most often feels oppressive.

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 Taitung's 4th-clearest and 8th-windiest month. For the whole year in context, see Taitung's year-round climate.

Daytime high
27°
4th warmest
Overnight low
25°
9th coldest
Rainfall
341 mm
21.1 wet days
Daylight
12 h 06 min
5:46 AM – 5:54 PM
Cloud cover
66%
4th clearest
Wind
13 km/h
8th windiest
Solar energy
4.79 kWh/m²
Travel score
4.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Taitung reaches about 27°C in the afternoon and slips back to 25°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132725
142725
152725
162725
172725
182725
192725
202725
212725
222725
232725
242725
252725
262725
272725
282625
292625
302624

How September really feels in Taitung

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Taitung weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 17°31328.610.83.6
Feb20° / 18°2732511.23.8
Mar22° / 19°24225.411.84.4
Apr24° / 22°24422.412.54.8
May26° / 24°38823.813.14.5
Jun28° / 26°29517.913.44.5
Jul29° / 27°23317.213.34.6
Aug28° / 26°3152012.84.4
Sep27° / 25°34121.112.14.7
Oct25° / 23°2442211.55.0
Nov23° / 21°23623.810.94.6
Dec21° / 18°26727.410.63.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14060
23961
33961
43961
53961
63961
74060
84060
94060
103961
113961
123961
133961
143961
153961
163862
173862
183862
193862
203862
213763
223862
233862
243961
253961
264060
274159
284159
294357
304357

Chance of precipitation in September

Any precipitation

Taitung gets around 341 mm of rain over 21.1 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 70% and peaks near 72% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
167
267
367
468
568
668
768
868
968
1068
1168
1268
1369
1469
1570
1671
1771
1872
1972
2072
2172
2272
2372
2472
2572
2672
2771
2871
2971
3071

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 74% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1026335
2026533
3026632
4036631
5036829
6037027
7047026
8047224
9057322
10067420
11067519
12077617
13087616
14097714
150107713
160117712
170117811
180127810
19013789
20014788
21015778
22015787
23016786
24117766
25118765
26119764
27120754
28121753
29122743
30223723

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
912calm
1012calm
1112calm
1212light breeze
1312light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

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 5:41 AM to 5:50 AM, and sunset from 6:09 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:416:09
212.45:426:08
312.45:426:07
412.45:426:06
512.45:436:05
612.45:436:04
712.35:436:03
812.35:436:02
912.35:446:01
1012.35:446:00
1112.25:445:59
1212.25:455:58
1312.25:455:57
1412.25:455:56
1512.25:465:55
1612.15:465:54
1712.15:465:53
1812.15:465:52
1912.15:475:50
2012.05:475:49
2112.05:475:48
2212.05:485:47
2312.05:485:46
2411.95:485:45
2511.95:495:44
2611.95:495:43
2711.95:495:42
2811.95:505:41
2911.85:505:40
3011.85:505:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.79 kWh/m².

For context, solar energy here swings from a low near 2.74 kWh/m² to a high of 5.83 kWh/m² in July across the year — September's 4.79 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.7Bright
214.6Bright
224.6Bright
234.6Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Hazard calendar for Taitung

In seasonPeak

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

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

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

Is September a good time to visit Taitung?

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

4.7
Sightseeing
3rd-best month of the year
4.9
Beach & pool
4th-best month of the year

September is a reasonable time to visit Taitung for sightseeing.

What to pack for Taitung in September

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

In September, Taitung sees daytime highs around 27°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Taitung 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 15 km away) is warmest in July at about 29°C and coldest in January near 24°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb24Warm
Mar25Warm
Apr26Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct28Warm
Nov26Warm
Dec25Warm

UV index in Taitung in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Taitung peaks around June 21 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJun 21UV 12Dec 20UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar10Very high
Apr9Very high
May10Very high
Jun13Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct9Very high
Nov7Very high
Dec6High

Air quality in Taitung 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 Taitung is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1816 µg/m³Jul 148 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar16Moderate
Apr14Moderate
May10Good
Jun9Good
Jul8Good
Aug10Good
Sep9Good
Oct10Good
Nov9Good
Dec11Good
Location & terrain

Where is Taitung?

Taitung sits at 22.8°N, 121.1°E, 20 m above sea level, in Taiwan. The nearest listed city is Chaozhou, 66 km away.

ChaozhouDonggangYujingFengshanKaohsiungHengchunYongkangTainan

Topography around Taitung

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

Within 3 km, the terrain around Taitung has only modest variations in elevation — a maximum elevation change of 65 m around an average of 17 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,549 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,783 m.

The land around Taitung is covered by artificial surfaces (31%), trees (25%) and cropland (20%) within 3 km, water (51%) and trees (40%) within 16 km, and trees (49%) and water (46%) within 80 km.

3 km
65 m
16 km
1,549 m
80 km
3,783 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Chaozhou 66 km · Donggang 79 km · Yujing 81 km · Fengshan 82 km · Kaohsiung 87 km · Hengchun 94 km · Yongkang 96 km · Tainan 99 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 Taitung (22.7599°, 121.1446°, elevation 20 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).