Climate and average weather in Erlin

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

Best: late September to late December

Over the course of the year, the temperature in Erlin typically varies from 16°C to 29°C, and is rarely below 14°C or above 30°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 Erlin for warm-weather activities is from late September to late December.

Hottest
Jul
29°
Coldest
Jan
16°
Wettest
Jun
361 mm
Driest
Nov
38 mm
Rain / yr
1814 mm
123 wet days
Daylight
10.5–13.5 h
shortest–longest
Elevation
19 m
23.9°N
Clearest
Oct
33% cloud

Erlin 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 late September to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 5.2 months, from May 9 to October 12, with daily high temperatures above 26°C. The hottest month of the year in Erlin is July, with an average high of 29°C and low of 27°C.

The cool season lasts 2.6 months, from December 18 to March 5, with daily high temperatures below 20°C. The coldest month of the year in Erlin is January, with an average low of 16°C and high of 18°C.

Days typically run about 2°C warmer than nights year-round.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1816
Feb1816
Mar2118
Apr2422
May2624
Jun2826
Jul2927
Aug2926
Sep2826
Oct2624
Nov2321
Dec2018

How hot and cold Erlin 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, Erlin feels like about 35°C (around July 14). About 95 days a year carry some heat stress, peaking in July.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan18181616
Feb18181616
Mar21211818
Apr24242222
May26262424
Jun33282626
Jul35292727
Aug34292626
Sep32282626
Oct26262424
Nov23232121
Dec20201818

Average hourly temperature in Erlin

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 29°C, and coldest before dawn in January, near 16°C.

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

Erlin 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
Jan18° / 16°465.510.76.9
Feb18° / 16°697.611.26.5
Mar21° / 18°11010.211.86.7
Apr24° / 22°15910.912.56.8
May26° / 24°27514.113.16.0
Jun28° / 26°36117.613.44.8
Jul29° / 27°2351713.34.6
Aug29° / 26°30919.112.84.5
Sep28° / 26°13010.212.16.3
Oct26° / 24°383.111.48.3
Nov23° / 21°383.310.88.4
Dec20° / 18°464.610.67.5

Chance of rain

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

Erlin gets about 1814 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 5.9 months, from around Mar 18 to Sep 13, peaking in August at about 63% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 28.

June is the wettest month by volume, with 361 mm over about 18 wet days; November is the driest, with 38 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetAug 10 · 63%Oct 28 · 7%
Rain on a day (%)Rain days
Jan186
Feb278
Mar3310
Apr3611
May4514
Jun5818
Jul5517
Aug6119
Sep3410
Oct113
Nov113
Dec155

Monthly rainfall

Over a full year, Erlin collects about 1814 mm of rain across 123 wet days — roughly 151 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 361 mm, while November is the driest at just 38 mm. The three wettest months alone bring about 52% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec4669110159275361235309130383846
Rainfall (mm)Rain days
Jan466
Feb698
Mar11010
Apr15911
May27514
Jun36118
Jul23517
Aug30919
Sep13010
Oct383
Nov383
Dec465

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Erlin, 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 16 and lasts for 7.0 months, ending around April 17. The clearest month is October, when the sky is clear, mostly clear, or partly cloudy 77% of the time on average.

The cloudier part of the year begins around April 18 and lasts for 5.0 months, ending around September 15. The cloudiest month is June, when it is overcast or mostly cloudy 75% 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 17 · 80%Jun 16 · 20%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan7624
Feb7129
Mar6832
Apr5842
May4258
Jun2575
Jul3466
Aug3763
Sep5743
Oct7723
Nov7624
Dec7525

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 13, brings about 13 h 30 min of light; the shortest, around January 1, only 10 h 30 min — a swing of roughly 3 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan10.76:485:28
Feb11.26:385:48
Mar11.86:136:03
Apr12.55:426:15
May13.15:206:29
Jun13.45:156:43
Jul13.35:246:44
Aug12.85:386:28
Sep12.15:495:57
Oct11.46:015:27
Nov10.86:195:09
Dec10.66:395:11

Sunny days

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

Erlin averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 21 days.

The sunnier stretch runs 6.6 months, from around Sep 18 to Apr 5. The sunniest month is October, with roughly 20 sunny days (bright).

The greyest month is June, down near 4 sunny days — about 78% fewer than the October peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantOct 1921 daysJun 153 days
Sunny daysSky
Jan19Bright
Feb15Bright
Mar15Mixed
Apr12Mixed
May9Mixed
Jun4Gloomy
Jul6Gloomy
Aug7Gloomy
Sep12Mixed
Oct21Bright
Nov19Bright
Dec19Bright

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 Erlin, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 8.0 months, from around March 29 to November 25. 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 26 to March 28, and January is the most comfortable month — the air is dry or comfortable 71% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 28 · 79%May 13 · 0%humidmuggycomfortableoppressivemiserabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan323927200
Feb273730600
Mar924382350
Apr162035352
May003185128
Jun00021978
Jul0000397
Aug0000694
Sep00193159
Oct0211324213
Nov392740210
Dec1629371710

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 Erlin is typically breezy, near 24 km/h, and varies a lot with the seasons.

The windier part of the year lasts 5.8 months, from around Sep 28 to Mar 23. The windiest month is December, averaging about 33 km/h (windy).

The calmer part of the year runs from around Mar 24 to Sep 27, with August the calmest month at about 16 km/h.

0510152025303540JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezebreezywindyblusteryDec 14 · 34 km/hAug 26 · 15 km/h
Wind speed (km/h)Feels
Jan32windy
Feb29windy
Mar25breezy
Apr19light breeze
May16light breeze
Jun18light breeze
Jul17light breeze
Aug16light breeze
Sep19light breeze
Oct29breezy
Nov30windy
Dec33windy

Hazard calendar for Erlin

In seasonPeak

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

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

Erlin's monsoon runs May–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 Erlin

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late December, Erlin 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 Erlin for general outdoor tourist activities is from late September to mid January, with a peak score in the last week of October.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationOct 30 · 8.7

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
Jan6.9good
Feb6.5good
Mar6.6good
Apr6.8good
May6.0good
Jun4.8fair
Jul4.6fair
Aug4.5fair
Sep6.3good
Oct8.3ideal
Nov8.4ideal
Dec7.5ideal

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 Erlin for hot-weather activities is from early September to late November, with a peak score in the third week of October.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationOct 18 · 7.8

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 Erlin, 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 29°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 18°C), pack a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Erlin sees daytime highs around 29°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

Sea temperature near Erlin

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

The sea at the nearest coast (about 25 km away) is warmest in August at about 29°C and coldest in January near 21°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
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Warm
May26Warm
Jun28Warm
Jul29Tropical
Aug29Tropical
Sep28Warm
Oct26Warm
Nov25Warm
Dec22Refreshing

UV index (midday) in Erlin 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 Erlin peaks around June 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 18UV 12Dec 20UV 5
UV index (midday)Level
Jan6High
Feb8Very high
Mar9Very high
Apr8Very high
May10Very high
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct7Very high
Nov7High
Dec5High

Average hourly UV index in Erlin

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)
Jan50
Feb6.53.5
Mar74.5
Apr74
May85.5
Jun8.56.5
Jul8.56
Aug86
Sep74.5
Oct6.53.5
Nov62.5
Dec50

Air quality in Erlin 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 Erlin is worst in March — around 38 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (July, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 2038 µg/m³Jul 2321 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb34Moderate
Mar38Poor
Apr37Poor
May31Moderate
Jun25Moderate
Jul21Moderate
Aug22Moderate
Sep26Moderate
Oct26Moderate
Nov26Moderate
Dec26Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Erlin 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. Erlin banks about 4,770 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)
Jan216
Feb205
Mar296
Apr379
May472
Jun505
Jul545
Aug541
Sep504
Oct459
Nov368
Dec279

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.

Erlin receives about 4.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.4 and 5.8 kWh/m².

The brighter stretch of the year lasts 7.3 months, from around Mar 9 to Oct 15. The brightest month is July, averaging about 5.7 kWh/m² (bright).

The dimmest month is December, down near 3.5 kWh/m² — roughly 39% less than the July peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 35.8 kWhDec 163.4 kWh
Solar energy (kWh/m²)Level
Jan3.7Moderate
Feb4.2Bright
Mar5.0Bright
Apr5.5Bright
May5.6Bright
Jun5.4Bright
Jul5.7Bright
Aug5.1Bright
Sep5.1Bright
Oct4.8Bright
Nov3.9Moderate
Dec3.4Moderate

Where is Erlin?

Erlin sits at 23.9°N, 120.4°E, 19 m above sea level, in Taiwan. The nearest listed city is Pitou, 11 km away.

Topography around Erlin

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

Within 3 km, the terrain around Erlin has only modest variations in elevation — a maximum elevation change of 18 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 51 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,887 m.

The land around Erlin is covered by cropland (62%) and artificial surfaces (23%) within 3 km, cropland (42%) and water (28%) within 16 km, and trees (39%) and water (39%) within 80 km.

3 km
18 m
16 km
51 m
80 km
3,887 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Pitou 11 km · Xihu 13 km · Xiluo 15 km · Erlun 15 km · Tianwei 16 km · Beidou 16 km · Yongjing 18 km · Citong 21 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 Erlin (23.9005°, 120.3689°, 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).