Climate and average weather in El Monte

In El Monte, the summers are hot, dry, and clear and the winters are cool and partly cloudy.

Best: late September to early May

Over the course of the year, the temperature in El Monte typically varies from 3°C to 29°C, and is rarely below -1°C or above 32°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit El Monte for warm-weather activities is from late September to early May.

Hottest
Jan
29°
Coldest
Jul
Wettest
Jun
144 mm
Driest
Jan
3 mm
Rain / yr
558 mm
48 wet days
Daylight
9.8–14.2 h
shortest–longest
Elevation
300 m
33.7°S
Clearest
Jan
12% cloud

El Monte 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 early May.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.2 months, from November 19 to March 27, with daily high temperatures above 25°C. The hottest month of the year in El Monte is January, with an average high of 29°C and low of 15°C.

The cool season lasts 3.5 months, from May 20 to September 1, with daily high temperatures below 17°C. The coldest month of the year in El Monte is July, with an average low of 3°C and high of 15°C.

Days typically run about 13°C warmer than nights, with the widest day–night swing (around 14°C) in December.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2915
Feb2814
Mar2712
Apr229
May186
Jun154
Jul153
Aug164
Sep186
Oct219
Nov2511
Dec2813

Average hourly temperature in El Monte

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

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

El Monte 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
Jan29° / 15°30.6147.5
Feb28° / 14°50.813.38.0
Mar27° / 12°111.412.38.7
Apr22° / 393.811.28.0
May18° / 826.310.36.3
Jun15° / 1448.89.84.5
Jul15° / 987.3104.6
Aug16° / 82710.75.5
Sep18° / 495.711.86.6
Oct21° / 293.712.87.7
Nov25° / 11°11213.78.8
Dec28° / 13°50.814.28.4

Chance of rain

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

El Monte gets about 558 mm of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.

The wetter season lasts 6.0 months, from around Apr 14 to Oct 12, peaking in June at about 31% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 1.

June is the wettest month by volume, with 144 mm over about 9 wet days; January is the driest, with 3 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetJun 17 · 31%Jan 1 · 2%
Rain on a day (%)Rain days
Jan21
Feb31
Mar51
Apr124
May206
Jun299
Jul247
Aug237
Sep196
Oct124
Nov62
Dec31

Monthly rainfall

Over a full year, El Monte collects about 558 mm of rain across 48 wet days — roughly 46 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 144 mm, while January is the driest at just 3 mm. The three wettest months alone bring about 58% of the year’s total.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec3511398214498824929115
Rainfall (mm)Rain days
Jan31
Feb51
Mar111
Apr394
May826
Jun1449
Jul987
Aug827
Sep496
Oct294
Nov112
Dec51

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In El Monte, 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 October 24 and lasts for 5.8 months, ending around April 18. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 94% of the time on average.

The cloudier part of the year begins around April 19 and lasts for 6.2 months, ending around October 23. The cloudiest month is June, when it is overcast or mostly cloudy 61% 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%JanFebMarAprMayJunJulAugSepOctNovDecFeb 17 · 95%Jun 15 · 37%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan937
Feb946
Mar8911
Apr7129
May4852
Jun3961
Jul4654
Aug4852
Sep5347
Oct6436
Nov8317
Dec919

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 January 1, brings about 14 h 12 min of light; the shortest, around June 8, only 9 h 48 min — a swing of roughly 4 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan14.06:538:53
Feb13.37:218:36
Mar12.37:468:01
Apr11.28:097:19
May10.38:326:48
Jun9.88:516:37
Jul10.08:516:49
Aug10.78:267:10
Sep11.87:447:32
Oct12.87:037:55
Nov13.76:368:23
Dec14.26:338:47

Sunny days

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

El Monte averages about 17 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 27 days.

The sunnier stretch runs 5.5 months, from around Oct 31 to Apr 16. The sunniest month is January, with roughly 27 sunny days (brilliant).

The greyest month is June, down near 8 sunny days — about 70% fewer than the January peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantJan 2027 daysJun 198 days
Sunny daysSky
Jan28Brilliant
Feb25Brilliant
Mar26Brilliant
Apr18Bright
May11Mixed
Jun8Mixed
Jul10Mixed
Aug11Mixed
Sep12Mixed
Oct15Mixed
Nov21Bright
Dec26Brilliant

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 El Monte, the air stays dry or comfortable essentially all year. Even in February, the muggiest month, it feels humid or worse only about 1% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDeccomfortabledry
Dry (%)Comfortable (%)Humid (%)
Jan74260
Feb69301
Mar84160
Apr9730
May9910
Jun10000
Jul10000
Aug10000
Sep10000
Oct9820
Nov9730
Dec88120

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 El Monte is steady company: average speeds sit near 5 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmJan 1 · 7 km/hJun 18 · 4 km/h
Wind speed (km/h)Feels
Jan7calm
Feb6calm
Mar6calm
Apr5calm
May4calm
Jun4calm
Jul4calm
Aug4calm
Sep5calm
Oct6calm
Nov6calm
Dec7calm

Hazard calendar for El Monte

In seasonPeak

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

El Monte's rainy season runs May–August, 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 El Monte

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late April, El Monte 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 El Monte for general outdoor tourist activities is from late September to early May, with a peak score in the third week of November.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationNov 16 · 8.8

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
Jan7.6ideal
Feb8.0ideal
Mar8.7ideal
Apr8.0ideal
May6.3good
Jun4.6fair
Jul4.6fair
Aug5.5fair
Sep6.6good
Oct7.7ideal
Nov8.7ideal
Dec8.4ideal

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 El Monte for hot-weather activities is from mid November to early April, with a peak score in the third week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 18 · 9.4

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 El Monte, 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 January (highs near 29°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 15°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, El Monte sees daytime highs around 29°C and nights near 15°C. Pack light clothes and sun protection.

Sea temperature near El Monte

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 60 km away) is warmest in February at about 16°C and coldest in August near 12°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr14Bracing
May14Bracing
Jun13Bracing
Jul13Bracing
Aug12Bracing
Sep12Bracing
Oct13Bracing
Nov13Bracing
Dec15Bracing

UV index (midday) in El Monte 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 El Monte peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateVery highExtremeJan 17UV 13Jun 15UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr5Moderate
May3Moderate
Jun3Moderate
Jul3Moderate
Aug3Moderate
Sep6High
Oct9Very high
Nov10Extreme
Dec12Extreme

Average hourly UV index in El Monte

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 January the burn window is concentrated in the middle of the day: about 9 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)
Jan97
Feb8.56.5
Mar7.55
Apr50
May00
Jun00
Jul00
Aug20
Sep5.50
Oct7.55
Nov8.56
Dec96.5

Air quality in El Monte 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 El Monte is worst in July — around 88 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (February, 35 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorJul 1287 µg/m³Feb 1836 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb35Moderate
Mar40Poor
Apr58Unhealthy
May83Unhealthy
Jun85Unhealthy
Jul88Unhealthy
Aug77Unhealthy
Sep64Unhealthy
Oct45Poor
Nov37Poor
Dec38Poor
Almanac & agriculture

Growing season

Chance of a frost-free dayReliably frost-free (≥90%)

El Monte is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about August 17 to June 6 (294 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freereliably frost-freeAug 1790%Jun 690%
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May970
Jun8726
Jul8231
Aug9019
Sep990
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. El Monte banks about 1,997 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

05001,0001,5002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan365
Feb314
Mar293
Apr165
May60
Jun1
Jul0
Aug12
Sep71
Oct155
Nov240
Dec320

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.

El Monte receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.3 and 9.0 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Sep 29 to Mar 28. The brightest month is December, averaging about 8.9 kWh/m² (intense).

The dimmest month is June, down near 2.4 kWh/m² — roughly 73% less than the December peak.

012345678910JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 309.0 kWhJun 192.3 kWh
Solar energy (kWh/m²)Level
Jan8.8Intense
Feb7.9Intense
Mar6.4Intense
Apr4.5Bright
May3.0Moderate
Jun2.3Moderate
Jul2.7Moderate
Aug3.6Moderate
Sep5.0Bright
Oct6.6Intense
Nov8.1Intense
Dec8.9Intense

Where is El Monte?

El Monte sits at 33.7°S, 71.0°W, 300 m above sea level, in Chile. The nearest listed city is Talagante, 6.0 km away.

Topography around El Monte

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

Within 3 km, the terrain around El Monte has only modest variations in elevation — a maximum elevation change of 177 m around an average of 292 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,156 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,382 m.

The land around El Monte is covered by trees (38%) and cropland (31%) within 3 km, shrubs (35%) and trees (25%) within 16 km, and shrubs (26%) and grassland (25%) within 80 km.

3 km
177 m
16 km
1,156 m
80 km
4,382 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Talagante 6.0 km · Peñaflor 13 km · Padre Hurtado 21 km · Melipilla 21 km · Buin 23 km · Paine 27 km · Maipú 27 km · San Bernardo 28 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

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 El Monte (-33.6797°, -70.9848°, elevation 300 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. 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).