Climate and average weather in Jaén

In Jaén, the weather is hot, wet, and mostly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around May.

Best: mid May to late October

Over the course of the year, the temperature in Jaén typically varies from 18°C to 31°C, and is rarely below 17°C or above 35°C. November is the hottest month of the year, while July is the coldest.

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

Hottest
Nov
31°
Coldest
Jul
18°
Wettest
May
84 mm
Driest
Nov
31 mm
Rain / yr
691 mm
154 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
730 m
5.7°S
Clearest
Aug
54% cloud

Jaén is capital city of Jaén, Peru.

Density
1/km²
people per km²
Founded
1549

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

Jaén 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 May to late October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Jaén stay fairly even through the year, without a distinct hot or cool season. The warmest month is November, with an average high of 31°C and low of 21°C; the coolest is July, with an average low of 18°C and high of 26°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 10°C) in November.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3021
Feb3021
Mar3021
Apr2920
May2820
Jun2619
Jul2618
Aug2619
Sep2819
Oct3020
Nov3121
Dec3021

Average hourly temperature in Jaén

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 November afternoons, near 31°C, and coldest before dawn in July, near 18°C.

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

Jaén 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
Jan30° / 21°479.812.34.7
Feb30° / 21°6212.412.24.4
Mar30° / 21°7114.3124.4
Apr29° / 20°8317.111.94.4
May28° / 20°8416.911.75.3
Jun26° / 19°7516.611.75.6
Jul26° / 18°6717.411.75.7
Aug26° / 19°5313.311.86.2
Sep28° / 19°399.9126.1
Oct30° / 20°368.312.15.2
Nov31° / 21°317.612.34.6
Dec30° / 21°4310.112.34.6

Chance of rain

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

Jaén gets about 691 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 6.2 months, from around Feb 8 to Aug 15, peaking in May at about 61% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 28.

May is the wettest month by volume, with 84 mm over about 17 wet days; November is the driest, with 31 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetMay 6 · 61%Oct 28 · 24%
Rain on a day (%)Rain days
Jan3310
Feb4312
Mar4614
Apr5617
May5617
Jun5417
Jul5517
Aug4413
Sep3310
Oct288
Nov268
Dec3210

Monthly rainfall

Over a full year, Jaén collects about 691 mm of rain across 154 wet days — roughly 58 mm in an average month.

It doesn’t fall evenly. May is the wettest month with 84 mm, while November is the driest at just 31 mm. The three wettest months alone bring about 35% of the year’s total.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec476271838475675339363143
Rainfall (mm)Rain days
Jan4710
Feb6212
Mar7114
Apr8317
May8417
Jun7517
Jul6717
Aug5313
Sep3910
Oct368
Nov318
Dec4310

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Jaén, 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 May 2 and lasts for 5.5 months, ending around October 16. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 62% of the time on average.

The cloudier part of the year begins around October 17 and lasts for 6.5 months, ending around May 1. The cloudiest month is March, when it is overcast or mostly cloudy 91% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 17 · 64%Mar 16 · 8%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2377
Feb1486
Mar991
Apr2278
May3961
Jun4951
Jul5446
Aug6238
Sep4951
Oct3565
Nov3070
Dec2674

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. Close to the equator, Jaén barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.36:166:33
Feb12.26:246:35
Mar12.06:246:26
Apr11.96:196:12
May11.76:196:04
Jun11.76:256:06
Jul11.76:306:12
Aug11.86:256:14
Sep12.06:106:09
Oct12.15:566:04
Nov12.35:536:08
Dec12.36:026:21

Sunny days

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

Jaén averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 8 days.

The sunnier stretch runs 5.7 months, from around Jun 1 to Nov 21. The sunniest month is August, with roughly 8 sunny days (gloomy).

The greyest month is March, down near 0 sunny days — about 95% fewer than the August peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 198 daysMar 50 days
Sunny daysSky
Jan2Gloomy
Feb0Gloomy
Mar0Gloomy
Apr1Gloomy
May4Gloomy
Jun4Gloomy
Jul5Gloomy
Aug8Gloomy
Sep7Gloomy
Oct5Gloomy
Nov4Gloomy
Dec3Gloomy

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 Jaén, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 6.1 months, from around February 21 to August 24. The muggiest month is May, when the air feels humid, muggy or worse about 99% of the time.

The most comfortable stretch runs from around August 25 to February 20, and January is the most comfortable month — the air is dry or comfortable 17% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 15 · 18%May 2 · 0%muggyhumidcomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan2146717
Feb196228
Mar055837
Apr024157
May014456
Jun046531
Jul048016
Aug078111
Sep0108010
Oct3106820
Nov696719
Dec397316

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.

Wind in Jaén is steady company: average speeds sit near 3 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmNov 17 · 3 km/hJun 4 · 3 km/h
Wind speed (km/h)Feels
Jan3calm
Feb3calm
Mar3calm
Apr3calm
May3calm
Jun3calm
Jul3calm
Aug3calm
Sep3calm
Oct3calm
Nov3calm
Dec3calm

Best time to visit Jaén

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late May, Jaén 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 time of year to visit Jaén for general outdoor tourist activities is from mid May to late October, with a peak score in the third week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 21 · 6.3

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
Jan4.6fair
Feb4.4fair
Mar4.4fair
Apr4.5fair
May5.2fair
Jun5.6good
Jul5.7good
Aug6.2good
Sep6.1good
Oct5.2fair
Nov4.6fair
Dec4.6fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Jaén for hot-weather activities run from mid May to early June and again from early August to mid April, with a peak score in the first week of October.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationOct 6 · 6.9

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 Jaén, 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.

Jaén packs about the same all year — highs hold near 31°C. Across the year the things worth having are light clothes, sun protection and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In November, Jaén sees daytime highs around 31°C and nights near 21°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

UV index (midday) in Jaén 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 Jaén peaks around February 15 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 15UV 17Jul 13UV 11
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar16Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct15Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Jaén

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 February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 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)
Jan8.57
Feb8.57
Mar8.57
Apr86.5
May86
Jun7.55.5
Jul7.55.5
Aug7.55.5
Sep86
Oct8.56.5
Nov8.56.5
Dec8.56.5

Air quality in Jaén 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 Jaén is worst in November — around 18 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1418 µg/m³Jul 108 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar13Moderate
Apr12Moderate
May10Good
Jun8Good
Jul8Good
Aug12Good
Sep18Moderate
Oct14Moderate
Nov18Moderate
Dec12Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Jaén 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. Jaén banks about 5,172 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around November.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan478
Feb424
Mar465
Apr433
May421
Jun379
Jul370
Aug386
Sep405
Oct457
Nov472
Dec482

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.

Jaén receives about 4.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.8 and 5.8 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Aug 28 to Feb 24. The brightest month is November, averaging about 5.7 kWh/m² (bright).

The dimmest month is June, down near 3.9 kWh/m² — roughly 33% less than the November peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseNov 125.8 kWhJun 273.8 kWh
Solar energy (kWh/m²)Level
Jan5.1Bright
Feb4.9Bright
Mar4.8Bright
Apr4.7Bright
May4.3Bright
Jun3.8Moderate
Jul3.9Moderate
Aug4.5Bright
Sep5.2Bright
Oct5.6Bright
Nov5.8Bright
Dec5.2Bright

Where is Jaén?

Jaén sits at 5.7°S, 78.8°W, 730 m above sea level, in Peru. The nearest listed city is Bagua Grande, 41 km away.

ChachapoyasChongoyapePátapoFerreñafePicsiSaña

Topography around Jaén

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

Within 3 km, the terrain around Jaén has large variations in elevation — a maximum elevation change of 752 m around an average of 860 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,515 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,781 m.

The land around Jaén is covered by trees (35%), grassland (34%) and artificial surfaces (21%) within 3 km, trees (54%) and grassland (39%) within 16 km, and trees (60%) and grassland (38%) within 80 km.

3 km
752 m
16 km
2,515 m
80 km
3,781 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Bagua Grande 41 km · La Peca 43 km · Chachapoyas 119 km · Chongoyape 122 km · Pátapo 146 km · Ferreñafe 150 km · Picsi 155 km · Saña 160 km

Peru travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
220 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$9,684
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
8.6
per 100k, 2021
Road deaths
13.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 519
Religion
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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 Jaén (-5.7073°, -78.8079°, elevation 730 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).