Climate and average weather in Graneros

In Graneros, the summers are warm, dry, and clear and the winters are cool and partly cloudy.

Best: early January to late April

Over the course of the year, the temperature in Graneros typically varies from 2°C to 27°C, and is rarely below -3°C or above 31°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Graneros for warm-weather activities are from early January to late April and late October to late December.

Hottest
Jan
27°
Coldest
Jul
Wettest
Jun
149 mm
Driest
Jan
6 mm
Rain / yr
667 mm
64 wet days
Daylight
9.7–14.3 h
shortest–longest
Elevation
483 m
34.1°S
Clearest
Jan
14% cloud

Graneros 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 January to late April.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.9 months, from November 27 to March 26, with daily high temperatures above 24°C. The hottest month of the year in Graneros is January, with an average high of 27°C and low of 15°C.

The cool season lasts 3.5 months, from May 21 to September 4, with daily high temperatures below 16°C. The coldest month of the year in Graneros is July, with an average low of 2°C and high of 14°C.

Days typically run about 13°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2715
Feb2714
Mar2512
Apr218
May175
Jun143
Jul142
Aug153
Sep175
Oct207
Nov2310
Dec2612

Average hourly temperature in Graneros

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 27°C, and coldest before dawn in July, near C.

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

Graneros 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
Jan27° / 15°61.30148.7
Feb27° / 14°61.5013.38.7
Mar25° / 12°91.6012.39.0
Apr21° / 383.6011.27.9
May17° / 876.8010.36.1
Jun14° / 1498.50.39.84.4
Jul14° / 1138.50.4104.3
Aug15° / 998.20.510.75.0
Sep17° / 7490.211.85.9
Oct20° / 5480.112.96.8
Nov23° / 10°234.6013.88.3
Dec26° / 12°112.2014.28.8

Chance of rain

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

Graneros gets about 667 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 6.0 months, from around May 10 to Nov 9, peaking in September at about 31% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 26.

June is the wettest month by volume, with 149 mm over about 9 wet days; January is the driest, with 6 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetSep 7 · 31%Jan 26 · 3%
Rain on a day (%)Rain days
Jan41
Feb52
Mar52
Apr124
May217
Jun299
Jul279
Aug278
Sep309
Oct258
Nov165
Dec72

Monthly rainfall

Over a full year, Graneros collects about 667 mm of rain across 64 wet days — roughly 56 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 149 mm, while January is the driest at just 6 mm. The three wettest months alone bring about 54% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec66938871491139974542311
Rainfall (mm)Rain daysSnow days
Jan610
Feb620
Mar920
Apr3840
May8770
Jun14990
Jul11390
Aug9981
Sep7490
Oct5480
Nov2350
Dec1120

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Graneros, 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 28 and lasts for 5.8 months, ending around April 22. 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 23 and lasts for 6.2 months, ending around October 27. The cloudiest month is June, when it is overcast or mostly cloudy 56% 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 2 · 95%Jun 18 · 42%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan937
Feb946
Mar8911
Apr7327
May5248
Jun4456
Jul4951
Aug5248
Sep5347
Oct6337
Nov8119
Dec9010

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 December 15, brings about 14 h 18 min of light; the shortest, around June 15, only 9 h 42 min — a swing of roughly 4 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan14.06:518:53
Feb13.37:208:35
Mar12.37:458:00
Apr11.28:097:18
May10.38:326:46
Jun9.88:516:35
Jul10.08:506:47
Aug10.78:257:09
Sep11.87:447:31
Oct12.97:027:54
Nov13.86:348:22
Dec14.26:318:47

Sunny days

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

Graneros averages about 18 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 27 days.

The sunnier stretch runs 5.5 months, from around Nov 4 to Apr 18. The sunniest month is January, with roughly 27 sunny days (brilliant).

The greyest month is June, down near 10 sunny days — about 63% fewer than the January peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantJan 2627 daysJun 1510 days
Sunny daysSky
Jan27Brilliant
Feb25Brilliant
Mar26Brilliant
Apr19Bright
May13Mixed
Jun10Mixed
Jul12Mixed
Aug12Mixed
Sep12Mixed
Oct15Mixed
Nov21Bright
Dec25Brilliant

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 Graneros, the air stays dry or comfortable essentially all year. Even in January, the muggiest month, it feels humid or worse only about 2% 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 (%)
Jan80182
Feb80182
Mar9280
Apr9910
May10000
Jun10000
Jul10000
Aug10000
Sep10000
Oct10000
Nov9910
Dec9190

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

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmJan 2 · 6 km/hApr 20 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb5calm
Mar5calm
Apr5calm
May5calm
Jun5calm
Jul5calm
Aug5calm
Sep5calm
Oct5calm
Nov5calm
Dec6calm

Hazard calendar for Graneros

In seasonPeak

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

Graneros's rainy season runs May–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 Graneros

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid January, Graneros 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 Graneros for general outdoor tourist activities is from late October to late April, with a peak score in the third week of March.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationMar 20 · 9.1

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
Jan8.7ideal
Feb8.7ideal
Mar9.0ideal
Apr7.9ideal
May6.1good
Jun4.4fair
Jul4.3fair
Aug5.0fair
Sep5.8good
Oct6.8good
Nov8.2ideal
Dec8.8ideal

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 Graneros for hot-weather activities is from late November to late March, with a peak score in the last week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 26 · 8.9

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 Graneros, 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 27°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 14°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Graneros sees daytime highs around 27°C and nights near 15°C. Pack light clothes and sun protection.

UV index (midday) in Graneros 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 Graneros peaks around January 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near May 24 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 16UV 13May 24UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr5High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug3Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Average hourly UV index in Graneros

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
Jul10
Aug2.50
Sep5.51
Oct7.55
Nov8.56
Dec96.5

Air quality in Graneros 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 Graneros is worst in July — around 108 µg/m³ PM2.5 (unhealthy), about 3.9× the cleanest month (December, 28 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 16107 µg/m³Dec 2128 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb31Moderate
Mar41Poor
Apr56Unhealthy
May80Unhealthy
Jun96Unhealthy
Jul108Unhealthy
Aug95Unhealthy
Sep78Unhealthy
Oct55Poor
Nov35Poor
Dec28Moderate
Almanac & agriculture

Growing season

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

Graneros is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about August 31 to May 23 (266 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freereliably frost-freeAug 3190%May 2390%
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr990
May937
Jun7830
Jul7031
Aug8031
Sep953
Oct990
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. Graneros banks about 1,653 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

05001,0001,500JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan342
Feb291
Mar256
Apr129
May33
Jun0
Jul0
Aug1
Sep33
Oct103
Nov185
Dec278

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.

Graneros receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.2 and 9.0 kWh/m².

The brighter stretch of the year lasts 6.0 months, from around Sep 29 to Mar 29. The brightest month is December, averaging about 8.8 kWh/m² (intense).

The dimmest month is June, down near 2.3 kWh/m² — roughly 74% less than the December peak.

012345678910JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 319.0 kWhJun 192.2 kWh
Solar energy (kWh/m²)Level
Jan8.8Intense
Feb7.8Intense
Mar6.4Intense
Apr4.5Bright
May3.0Moderate
Jun2.2Moderate
Jul2.6Moderate
Aug3.5Moderate
Sep4.9Bright
Oct6.5Intense
Nov7.9Intense
Dec8.8Intense

Where is Graneros?

Graneros sits at 34.1°S, 70.7°W, 483 m above sea level, in Chile. The nearest listed city is Rancagua, 11 km away.

Topography around Graneros

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

Within 3 km, the terrain around Graneros has only modest variations in elevation — a maximum elevation change of 136 m around an average of 475 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,634 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,302 m.

The land around Graneros is covered by cropland (50%) and trees (25%) within 3 km, shrubs (30%), trees (24%) and cropland (22%) within 16 km, and bare terrain (24%) within 80 km.

3 km
136 m
16 km
1,634 m
80 km
5,302 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainsnow and icewater
Nearby: Rancagua 11 km · Machalí 14 km · Paine 29 km · Buin 37 km · Rengo 39 km · Talagante 49 km · El Monte 49 km · San Vicente 52 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 Graneros (-34.0686°, -70.7275°, elevation 483 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).