Tainan weather in March

In March, Tainan sees average daytime highs of 25°C and overnight lows near 19°C, with 58 mm of rain across 9.2 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 41% of the time in March, and the air most often feels muggy.

Daylight stretches from about 11 h 30 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Tainan's 6th-clearest and 4th-windiest month. For the whole year in context, see Tainan's year-round climate.

Daytime high
25°
9th warmest
Overnight low
19°
4th coldest
Rainfall
58 mm
9.2 wet days
Daylight
11 h 48 min
6:14 AM – 6:04 PM
Cloud cover
50%
6th clearest
Wind
11 km/h
4th windiest
Solar energy
4.93 kWh/m²
Travel score
7.0
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 March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical March day in Tainan reaches about 25°C in the afternoon and slips back to 19°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 29°C. Set against its neighbours, March runs about 2°C warmer than February and about 3°C cooler than April.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12418
22418
32418
42418
52418
62418
72518
82518
92518
102518
112518
122518
132518
142519
152519
162519
172619
182619
192619
202619
212619
222619
232620
242620
252620
262620
272620
282620
292720
302720
312720

How March really feels in Tainan

Once humidity and wind are folded in, March 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

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

Tainan weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 7th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 22% of March, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26832
36832
46733
56733
66733
76733
86634
96634
106535
116535
126436
136436
146436
156337
166337
176238
186238
196238
206139
216139
226139
236040
246040
255941
265941
275941
285842
295842
305842
315842

Chance of precipitation in March

Any precipitation

Tainan gets around 58 mm of rain over 9.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
731
831
931
1030
1130
1230
1329
1429
1529
1628
1728
1828
1928
2028
2128
2228
2329
2429
2530
2631
2732
2833
2933
3034
3134

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the muggy band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
192837232
292837233
392837242
482737252
582737263
682637263
782537273
872537283
972437303
1062336314
1162236325
1252136335
1341936346
1441835357
1531735368
1631634379
17316343810
18315333811
19314323912
20313323913
21212314014
22212304015
23211304116
24211294117
25210284118
26210284119
27210274119
2829274120
2929274121
3029264123
3128264024

Wind in March

Winds average 11 km/h in March.

Across March, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in March

DaylightNight

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

Days grow by about 42 minutes over March. Sunrise moves from 6:27 AM to 5:59 AM, and sunset from 5:57 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:275:57
211.56:275:58
311.56:265:58
411.66:255:59
511.66:245:59
611.66:236:00
711.66:226:00
811.76:216:01
911.76:206:01
1011.76:196:01
1111.76:196:02
1211.76:186:02
1311.86:176:03
1411.86:166:03
1511.86:156:03
1611.86:146:04
1711.96:136:04
1811.96:126:05
1911.96:116:05
2011.96:106:05
2111.96:096:06
2212.06:086:06
2312.06:076:07
2412.06:066:07
2512.06:056:07
2612.16:046:08
2712.16:036:08
2812.16:026:08
2912.16:016:09
3012.26:006:09
3112.25:596:09

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.93 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 — March's 4.93 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.6Bright
54.6Bright
64.6Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.9Bright
164.9Bright
174.9Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in March

Hazard calendar for Tainan

In seasonPeak

In March, 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 March a good time to visit Tainan?

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

7.0
Sightseeing
5th-best month of the year
6.5
Beach & pool
4th-best month of the year

March is one of the better times to visit Tainan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tainan in March

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

In March, Tainan sees daytime highs around 25°C and nights near 19°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Tainan in March

The nearest coast averages about 24°C in March — 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 March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 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 March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March 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
March 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).