Climate and average weather in Jenzan

In Jenzan, the summers are humid, hot, showery, and partly cloudy and the winters are cold, snowy, and mostly clear.

Best: early April to mid June

Over the course of the year, the temperature in Jenzan typically varies from -4°C to 30°C, and is rarely below -9°C or above 35°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit Jenzan for warm-weather activities are from early April to mid June and early September to early November.

Hottest
Aug
30°
Coldest
Jan
-4°
Wettest
Jul
225 mm
Driest
Dec
21 mm
Rain / yr
1086 mm
89 wet days
Daylight
9.5–14.5 h
shortest–longest
Elevation
48 m
36.2°N
Clearest
Dec
43% cloud

Jenzan 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 early April to mid June.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.3 months, from May 16 to September 24, with daily high temperatures above 24°C. The hottest month of the year in Jenzan is August, with an average high of 30°C and low of 22°C.

The cool season lasts 3.0 months, from November 29 to February 28, with daily high temperatures below 9°C. The coldest month of the year in Jenzan is January, with an average low of -4°C and high of 4°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 13°C) in April.

-10°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan4-4
Feb7-3
Mar131
Apr197
May2413
Jun2818
Jul2922
Aug3022
Sep2617
Oct2010
Nov133
Dec6-2

How hot and cold Jenzan 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, Jenzan feels like about 34°C (around August 6). About 31 days a year carry some heat stress, peaking in August.

On the coldest nights, wind chill pulls the feels-like down to about -9°C (around January 26), with roughly 126 freezing days a year (feels-like at or below 0°C), worst in January.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan44-9-4
Feb77-7-3
Mar1313-21
Apr191957
May24241213
Jun28281818
Jul32292222
Aug32302222
Sep26261717
Oct2020910
Nov131313
Dec66-6-2

Average hourly temperature in Jenzan

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 August afternoons, near 30°C, and coldest before dawn in January, near -4°C.

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

Jenzan weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°223.91.99.80.0
Feb / -3°283.91.310.61.0
Mar13° / 526.81.211.73.8
Apr19° / 7670.112.96.6
May24° / 13°877.7013.97.2
Jun28° / 18°1259014.46.1
Jul29° / 22°22514.4014.24.6
Aug30° / 22°21114.1013.44.5
Sep26° / 17°1498.8012.26.8
Oct20° / 10°554.6011.17.4
Nov13° / 365.20.210.14.3
Dec / -3°213.90.99.60.7

Chance of rain

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

Jenzan gets about 1086 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 3.4 months, from around Jun 9 to Sep 21, peaking in July at about 49% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 1.

July is the wettest month by volume, with 225 mm over about 14 wet days; December is the driest, with 21 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 10 · 49%Jan 1 · 10%
Rain on a day (%)Rain days
Jan124
Feb154
Mar217
Apr237
May258
Jun319
Jul4614
Aug4514
Sep309
Oct155
Nov175
Dec124

Monthly rainfall

Over a full year, Jenzan collects about 1086 mm of rain across 89 wet days — roughly 91 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 225 mm, while December is the driest at just 21 mm. The three wettest months alone bring about 54% of the year’s total, and some of the cold-season precipitation falls as snow.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec2228527687125225211149553621
Rainfall (mm)Rain daysSnow days
Jan2242
Feb2841
Mar5271
Apr7670
May8780
Jun12590
Jul225140
Aug211140
Sep14990
Oct5550
Nov3650
Dec2141

Snow in Jenzan

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Jenzan averages about 6 snowy days a year. Snow season runs roughly Nov 24 to Mar 25 — about 4 months.

January is snowiest, with roughly 1.8 days of snow and an estimated 8 cm of snowfall. Over the year that adds up to an estimated 22 cm of snow.

01234JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonJan 22
Snow daysSnowfall (cm)
Jan28
Feb15
Mar16
Apr00
May00
Jun00
Jul00
Aug00
Sep00
Oct00
Nov01
Dec13

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Jenzan, 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 29 and lasts for 7.0 months, ending around April 28. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 66% of the time on average.

The cloudier part of the year begins around April 29 and lasts for 5.0 months, ending around September 28. The cloudiest month is July, when it is overcast or mostly cloudy 73% 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 29 · 69%Jul 8 · 22%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan6337
Feb6040
Mar5545
Apr5446
May4951
Jun3664
Jul2773
Aug3763
Sep4456
Oct6337
Nov6535
Dec6634

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 16, brings about 14 h 30 min of light; the shortest, around December 16, only 9 h 30 min — a swing of roughly 5 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.87:435:30
Feb10.67:236:00
Mar11.76:456:28
Apr12.95:596:55
May13.95:267:21
Jun14.45:137:41
Jul14.25:257:40
Aug13.45:497:13
Sep12.26:146:28
Oct11.16:405:44
Nov10.17:115:13
Dec9.67:375:09

Sunny days

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

Jenzan averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 16 days.

The sunnier stretch runs 7.2 months, from around Sep 30 to May 6. The sunniest month is October, with roughly 14 sunny days (mixed).

The greyest month is July, down near 4 sunny days — about 69% fewer than the October peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightOct 3116 daysJul 64 days
Sunny daysSky
Jan14Mixed
Feb12Mixed
Mar12Mixed
Apr12Mixed
May11Mixed
Jun7Gloomy
Jul5Gloomy
Aug7Gloomy
Sep9Mixed
Oct14Mixed
Nov15Bright
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 Jenzan, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.6 months, from around June 10 to September 26. The muggiest month is July, when the air feels humid, muggy or worse about 96% of the time.

The most comfortable stretch runs from around September 27 to June 9, and April is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 2 · 100%Jul 30 · 1%oppressivedrycomfortablehumidmuggycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan10000000
Feb10000000
Mar10000000
Apr9731000
May80154100
Jun2431261350
Jul031532462
Aug041331475
Sep2226291670
Oct83115100
Nov9910000
Dec10000000

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 Jenzan is typically calm, near 9 km/h, and varies little with the seasons.

The windier part of the year lasts 5.8 months, from around Nov 22 to May 16. The windiest month is January, averaging about 11 km/h (calm).

The calmer part of the year runs from around May 17 to Nov 21, with September the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 5 · 11 km/hSep 12 · 7 km/h
Wind speed (km/h)Feels
Jan11calm
Feb10calm
Mar10calm
Apr9calm
May9calm
Jun7calm
Jul7calm
Aug7calm
Sep7calm
Oct7calm
Nov8calm
Dec10calm

Hazard calendar for Jenzan

In seasonPeak

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

Jenzan's rainy season runs June–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Jenzan

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid April, Jenzan is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 times of year to visit Jenzan for general outdoor tourist activities run from early April to mid June and again from early September to early November, with a peak score in the second week of October.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationOct 8 · 7.6

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
Jan0.0poor
Feb1.1poor
Mar3.8fair
Apr6.5good
May7.2good
Jun6.1good
Jul4.6fair
Aug4.6fair
Sep6.7good
Oct7.3good
Nov4.3fair
Dec0.7poor

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 Jenzan for hot-weather activities is from early May to early October, with a peak score in the first week of June.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJun 5 · 7.0

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 Jenzan, 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 August (highs near 30°C), the essentials are light clothes and rain gear. In the cold season around January (highs near 4°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Jenzan sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. About 14 days see rain.

UV index (midday) in Jenzan 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 Jenzan peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 15UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Average hourly UV index in Jenzan

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 August the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 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)
Jan00
Feb10
Mar4.50
Apr6.52
May7.54
Jun84.5
Jul85
Aug85
Sep74
Oct50
Nov20
Dec00

Air quality in Jenzan 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 Jenzan is worst in March — around 63 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (August, 35 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1762 µg/m³Aug 935 µg/m³
PM2.5 (µg/m³)Level
Jan49Poor
Feb54Poor
Mar63Unhealthy
Apr55Unhealthy
May48Poor
Jun44Poor
Jul35Moderate
Aug35Moderate
Sep41Poor
Oct48Poor
Nov53Poor
Dec46Poor
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Jenzan typically lasts about 267 days, from around March 8 to November 29 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 5 to November 7.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonJan 3110%Mar 850%Apr 590%Nov 790%Nov 2950%Jan 510%
Frost-free chance (%)Frost nights
Jan1031
Feb2028
Mar6431
Apr964
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct990
Nov7622
Dec2431

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. Jenzan banks about 2,210 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

05001,0001,5002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr89
May261
Jun383
Jul483
Aug495
Sep335
Oct157
Nov7
Dec0

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.

Jenzan receives about 4.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.4 and 6.0 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Mar 3 to Aug 28. The brightest month is May, averaging about 5.8 kWh/m² (bright).

The dimmest month is December, down near 2.5 kWh/m² — roughly 57% less than the May peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseMay 296.0 kWhDec 102.4 kWh
Solar energy (kWh/m²)Level
Jan2.8Moderate
Feb3.7Moderate
Mar4.6Bright
Apr5.5Bright
May5.9Bright
Jun5.5Bright
Jul4.4Bright
Aug4.3Bright
Sep4.0Bright
Oct3.7Moderate
Nov2.7Moderate
Dec2.5Moderate

Where is Jenzan?

Jenzan sits at 36.2°N, 128.3°E, 48 m above sea level, in South Korea. The nearest listed city is Gumi, 15 km away.

MungyeongYeongdongYecheon

Topography around Jenzan

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

Within 3 km, the terrain around Jenzan has significant variations in elevation — a maximum elevation change of 456 m around an average of 98 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 873 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,578 m.

The land around Jenzan is covered by trees (45%) and cropland (34%) within 3 km, trees (60%) and cropland (24%) within 16 km, and trees (79%) within 80 km.

3 km
456 m
16 km
873 m
80 km
1,578 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Gumi 15 km · Gimcheon 21 km · Sangju 23 km · Kunwi 25 km · Waegwan 29 km · Mungyeong 40 km · Yeongdong 47 km · Yecheon 48 km

South Korea travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
220 V · 60 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$36,227
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.5
per 100k, 2023
Road deaths
8.6
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 522
Religion
none 60%Protestant 17%Buddhist 16%Catholic 6%

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 Jenzan (36.2408°, 128.2975°, elevation 48 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. 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).