Tainan weather in October

In October, Tainan sees average daytime highs of 29°C and overnight lows near 24°C, with 54 mm of rain across 6.4 wet days and about 11.5 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 28°C by the end. The sky is clear or mostly clear about 46% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 12 min by month's end. Set against the rest of the year, October is Tainan's 3rd-clearest and 10th-windiest month. For the whole year in context, see Tainan's year-round climate.

Daytime high
29°
6th warmest
Overnight low
24°
7th coldest
Rainfall
54 mm
6.4 wet days
Daylight
11 h 30 min
6:00 AM – 5:28 PM
Cloud cover
47%
3rd clearest
Wind
8 km/h
10th windiest
Solar energy
4.55 kWh/m²
Travel score
5.9
out of 10

Tainan is city in southern Taiwan.

Density
847/km²
people per km²
Founded
1624

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 28°C by the end.

A typical October day in Tainan reaches about 29°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, October runs about 2°C cooler than September and about 2°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93024
103024
113024
123024
133024
143024
153024
162924
172924
182924
192923
202923
212923
222923
232923
242923
252923
262923
272923
282923
292823
302823
312822

How October really feels in Tainan

Once humidity and wind are folded in, October averages 20 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
20
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Tainan weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 16°497.210.77.4
Feb23° / 17°447.811.27.3
Mar25° / 19°589.211.87.0
Apr28° / 22°12011.812.55.8
May30° / 25°29918.713.14.0
Jun31° / 26°39319.713.43.2
Jul32° / 27°30519.113.33.2
Aug31° / 26°40121.112.83.2
Sep31° / 26°18413.612.14.1
Oct29° / 24°546.411.55.9
Nov27° / 21°415.710.97.3
Dec24° / 18°476.410.67.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 23% of October, with mostly cloudy or overcast conditions the remaining 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26337
36436
46535
56634
66634
76733
86733
96832
106832
116832
126931
136931
146931
157030
167030
177129
187129
197129
207129
217228
227228
237228
247030
257030
267030
277030
286931
296931
306931
316832

Chance of precipitation in October

Any precipitation

Tainan gets around 54 mm of rain over 6.4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 29% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
129
228
327
426
526
626
725
825
925
1025
1125
1224
1324
1423
1522
1622
1721
1820
1920
2019
2118
2218
2317
2417
2516
2616
2716
2816
2916
3015
3115

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100103654
200103753
300113851
400123948
501134047
601134145
701144243
801154341
901164539
1001174637
1101184735
1201194832
1301194930
1401205128
1502215126
1612225124
1712235222
1813245220
1913245418
2014255317
2115265315
2215275413
2326275312
2427285211
2527295210
262830519
272930518
282931517
292932497
3021033496
3121034485

Wind in October

Winds average 8 km/h in October.

Across October, 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.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

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

Days shrink by about 36 minutes over October. Sunrise moves from 5:54 AM to 6:08 AM, and sunset from 5:42 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:545:42
211.85:555:41
311.75:555:40
411.75:565:39
511.75:565:38
611.75:565:37
711.75:575:36
811.65:575:35
911.65:575:34
1011.65:585:33
1111.65:585:32
1211.55:595:31
1311.55:595:30
1411.56:005:30
1511.56:005:29
1611.56:005:28
1711.46:015:27
1811.46:015:26
1911.46:025:25
2011.46:025:25
2111.46:035:24
2211.36:035:23
2311.36:045:22
2411.36:045:22
2511.36:055:21
2611.26:055:20
2711.26:065:20
2811.26:065:19
2911.26:075:18
3011.26:085:18
3111.26:085:17

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.55 kWh/m².

For context, solar energy here swings from a low near 3.27 kWh/m² to a high of 5.43 kWh/m² in July across the year — October's 4.55 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
314.1Bright
Planning a trip in October

Hazard calendar for Tainan

In seasonPeak

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

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

Tainan'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 October a good time to visit Tainan?

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

5.9
Sightseeing
6th-best month of the year
7.6
Beach & pool
1st-best month of the year

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

What to pack for Tainan in October

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

In October, Tainan sees daytime highs around 29°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Tainan in October

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

The sea at the nearest coast (about 16 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
Jan24Refreshing
Feb24Refreshing
Mar24Warm
Apr26Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Warm
Nov26Warm
Dec25Warm

UV index in Tainan in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tainan peaks around June 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 17UV 12Dec 22UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr9Very high
May9Very high
Jun12Extreme
Jul10Very high
Aug12Extreme
Sep11Extreme
Oct8Very high
Nov7Very high
Dec6High

Air quality in Tainan in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Tainan 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 Tainan?

Tainan sits at 23.0°N, 120.2°E, 26 m above sea level, in Taiwan. The nearest listed city is Yongkang, 6.0 km away.

YujingXinyingKaohsiungFengshanBudaiTaibaoChiayi City

Topography around Tainan

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

Within 3 km, the terrain around Tainan has only modest variations in elevation — a maximum elevation change of 40 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 136 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,645 m.

The land around Tainan is covered by artificial surfaces (86%) within 3 km, water (30%) and artificial surfaces (27%) within 16 km, and water (46%) and trees (37%) within 80 km.

3 km
40 m
16 km
136 m
80 km
3,645 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Yongkang 6.0 km · Yujing 29 km · Xinying 37 km · Kaohsiung 43 km · Fengshan 43 km · Budai 43 km · Taibao 54 km · Chiayi City 59 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 Tainan (22.9908°, 120.2133°, elevation 26 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).