Climate and average weather in Budai

In Budai, the summers are oppressive, hot, wet, and mostly cloudy and the winters are mild and mostly clear.

Best: mid October to late March

Over the course of the year, the temperature in Budai typically varies from 14°C to 32°C, and is rarely below 11°C or above 33°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Budai for warm-weather activities is from mid October to late March.

Hottest
Jul
32°
Coldest
Jan
14°
Wettest
Jun
429 mm
Driest
Nov
52 mm
Rain / yr
2350 mm
154 wet days
Daylight
10.6–13.4 h
shortest–longest
Elevation
7 m
23.4°N
Clearest
Jan
41% cloud

Budai weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid October to late March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Budai, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 5.3 months, from May 8 to October 16, with daily high temperatures above 29°C. The hottest month of the year in Budai is July, with an average high of 32°C and low of 26°C.

The cool season lasts 2.6 months, from December 14 to March 2, with daily high temperatures below 23°C. The coldest month of the year in Budai is January, with an average low of 14°C and high of 22°C.

Days typically run about 6°C warmer than nights year-round.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2214
Feb2215
Mar2517
Apr2721
May2923
Jun3125
Jul3226
Aug3126
Sep3125
Oct2923
Nov2720
Dec2316

How hot and cold Budai really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Budai feels like about 40°C (around July 1). About 159 days a year carry some heat stress, and 51 of them tip into dangerous heat (feels-like above 39°C), peaking in July.

10°15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan21221414
Feb22221515
Mar24251717
Apr28272121
May33292323
Jun38312525
Jul39322626
Aug39312626
Sep36312525
Oct31292323
Nov27272020
Dec23231616

Average hourly temperature in Budai

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 32°C, and coldest before dawn in January, near 14°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Budai weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 14°708.210.77.2
Feb22° / 15°849.511.26.9
Mar25° / 17°12111.611.86.7
Apr27° / 21°20814.212.55.7
May29° / 23°37918.513.14.3
Jun31° / 25°42921.513.43.1
Jul32° / 26°29719.613.33.2
Aug31° / 26°39721.112.83.2
Sep31° / 25°18912.212.14.4
Oct29° / 23°554.511.56.4
Nov27° / 20°52610.97.5
Dec23° / 16°706.710.67.6

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Budai gets about 2350 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.5 months, from around Mar 30 to Sep 13, peaking in June at about 76% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 25.

June is the wettest month by volume, with 429 mm over about 22 wet days; November is the driest, with 52 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 15 · 76%Oct 25 · 11%
Rain on a day (%)Rain days
Jan278
Feb3410
Mar3912
Apr4714
May5819
Jun7222
Jul6320
Aug6621
Sep4112
Oct155
Nov196
Dec227

Monthly rainfall

Over a full year, Budai collects about 2350 mm of rain across 154 wet days — roughly 196 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 429 mm, while November is the driest at just 52 mm. The three wettest months alone bring about 51% of the year’s total.

050100150200250300350400450500JanFebMarAprMayJunJulAugSepOctNovDec7084121208379429297397189555270
Rainfall (mm)Rain days
Jan708
Feb8410
Mar12112
Apr20814
May37919
Jun42922
Jul29720
Aug39721
Sep18912
Oct555
Nov526
Dec707

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Budai, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around September 19 and lasts for 6.4 months, ending around April 1. The clearest month is November, when the sky is clear, mostly clear, or partly cloudy 69% of the time on average.

The cloudier part of the year begins around April 2 and lasts for 5.6 months, ending around September 18. The cloudiest month is June, when it is overcast or mostly cloudy 82% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecOct 21 · 72%Jun 14 · 14%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan6832
Feb6337
Mar5644
Apr4654
May3466
Jun1882
Jul2674
Aug2674
Sep4654
Oct6931
Nov6931
Dec6832

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 3, brings about 13 h 24 min of light; the shortest, around January 1, only 10 h 36 min — a swing of roughly 2 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan10.76:475:30
Feb11.26:385:50
Mar11.86:146:04
Apr12.55:436:16
May13.15:226:29
Jun13.45:176:42
Jul13.35:266:44
Aug12.85:396:28
Sep12.15:505:58
Oct11.56:015:28
Nov10.96:195:10
Dec10.66:385:13

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Budai averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 17 days.

The sunnier stretch runs 5.9 months, from around Sep 23 to Mar 22. The sunniest month is November, with roughly 16 sunny days (bright).

The greyest month is June, down near 2 sunny days — about 87% fewer than the November peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightNov 2717 daysJun 151 days
Sunny daysSky
Jan16Bright
Feb13Mixed
Mar11Mixed
Apr9Mixed
May6Gloomy
Jun2Gloomy
Jul3Gloomy
Aug3Gloomy
Sep8Mixed
Oct16Bright
Nov16Bright
Dec16Bright

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Budai, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 7.9 months, from around March 28 to November 23. The muggiest month is May, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around November 24 to March 27, and January is the most comfortable month — the air is dry or comfortable 75% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 29 · 82%May 12 · 0%humidmuggycomfortablemiserableoppressivedrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan373823200
Feb293826710
Mar1222352650
Apr251835392
May002145529
Jun00011980
Jul0000991
Aug00001189
Sep00173756
Oct0211314610
Nov4102841160
Dec2229351300

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Budai is typically light breeze, near 12 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.3 months, from around Oct 17 to Mar 27. The windiest month is January, averaging about 16 km/h (light breeze).

The calmer part of the year runs from around Mar 28 to Oct 16, with September the calmest month at about 10 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 22 · 17 km/hSep 4 · 9 km/h
Wind speed (km/h)Feels
Jan16light breeze
Feb15light breeze
Mar13light breeze
Apr11calm
May9calm
Jun11calm
Jul10calm
Aug10calm
Sep10calm
Oct12light breeze
Nov14light breeze
Dec16light breeze

Hazard calendar for Budai

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

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

Budai's monsoon runs April–August, when most of the year's rain falls.

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

Best time to visit Budai

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Budai throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late March, Budai is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Budai for general outdoor tourist activities is from mid October to late March, with a peak score in the first week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 5 · 7.9

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan7.1good
Feb6.9good
Mar6.7good
Apr5.7good
May4.3fair
Jun3.2poor
Jul3.2poor
Aug3.2poor
Sep4.4fair
Oct6.4good
Nov7.5good
Dec7.6ideal

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Budai for hot-weather activities is from late September to early December, with a peak score in the last week of October.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationOct 22 · 8.2

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Budai, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 32°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 22°C), pack rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Budai sees daytime highs around 32°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

Sea temperature near Budai

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea offshore 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 (midday) in Budai by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Budai peaks around June 17 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 highExtremeVery highHighJun 17UV 12Dec 20UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr9Very high
May10Very high
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep10Very high
Oct7Very high
Nov7High
Dec5High

Average hourly UV index in Budai

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan5.51
Feb6.54
Mar75
Apr7.55
May85.5
Jun8.56.5
Jul86
Aug8.56
Sep7.55
Oct6.53.5
Nov62.5
Dec50

Air quality in Budai by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Budai 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
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Budai is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Budai banks about 5,145 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan245
Feb241
Mar337
Apr415
May507
Jun539
Jul580
Aug570
Sep532
Oct488
Nov393
Dec299

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Budai receives about 4.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.6 and 5.9 kWh/m².

The brighter stretch of the year lasts 7.1 months, from around Mar 3 to Oct 3. The brightest month is April, averaging about 5.8 kWh/m² (bright).

The dimmest month is December, down near 3.7 kWh/m² — roughly 36% less than the April peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseApr 225.9 kWhDec 173.6 kWh
Solar energy (kWh/m²)Level
Jan4.0Bright
Feb4.5Bright
Mar5.4Bright
Apr5.8Bright
May5.7Bright
Jun5.5Bright
Jul5.5Bright
Aug5.0Bright
Sep5.1Bright
Oct4.8Bright
Nov4.0Bright
Dec3.6Moderate

Where is Budai?

Budai sits at 23.4°N, 120.2°E, 7 m above sea level, in Taiwan. The nearest listed city is Xinying, 17 km away.

BeigangXingangChiayi CityYongkangYujingTainan

Topography around Budai

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

Within 3 km, the terrain around Budai has only modest variations in elevation — a maximum elevation change of 14 m around an average of 0 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 33 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,662 m.

The land around Budai is covered by water (67%) within 3 km, water (53%) and cropland (27%) within 16 km, and water (51%) and trees (29%) within 80 km.

3 km
14 m
16 km
33 m
80 km
3,662 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Xinying 17 km · Taibao 20 km · Beigang 26 km · Xingang 27 km · Chiayi City 31 km · Yongkang 40 km · Yujing 42 km · Tainan 43 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 Budai (23.3779°, 120.1615°, elevation 7 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).