Climate and average weather in Cantagalo

In Cantagalo, the weather is humid, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around December.

Best: late April to late September

Over the course of the year, the temperature in Cantagalo typically varies from 14°C to 29°C, and is rarely below 11°C or above 32°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Cantagalo for warm-weather activities is from late April to late September.

Hottest
Feb
29°
Coldest
Jul
14°
Wettest
Dec
214 mm
Driest
Jun
20 mm
Rain / yr
1148 mm
140 wet days
Daylight
10.7–13.3 h
shortest–longest
Elevation
431 m
22.0°S
Clearest
Jul
46% cloud

Cantagalo is settlement in Rio de Janeiro, Brazil.

Air quality
Good
PM10 23 µg/m³ · 2015

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

Cantagalo 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 April to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Cantagalo stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 29°C and low of 20°C; the coolest is July, with an average low of 14°C and high of 24°C.

Days typically run about 9°C warmer than nights year-round.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2920
Feb2920
Mar2820
Apr2718
May2516
Jun2414
Jul2414
Aug2414
Sep2516
Oct2618
Nov2619
Dec2820

Average hourly temperature in Cantagalo

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 February afternoons, near 29°C, and coldest before dawn in July, near 14°C.

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

Cantagalo 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° / 20°19217.113.24.6
Feb29° / 20°10113.212.84.8
Mar28° / 20°12716.312.25.0
Apr27° / 18°6611.511.56.3
May25° / 16°447.8117.3
Jun24° / 14°204.410.78.1
Jul24° / 14°204.510.88.1
Aug24° / 14°234.711.28.0
Sep25° / 16°588.911.96.9
Oct26° / 18°10212.912.56.0
Nov26° / 19°18418.213.15.0
Dec28° / 20°21420.513.34.7

Chance of rain

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

Cantagalo gets about 1148 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 6.0 months, from around Oct 15 to Apr 15, peaking in December at about 65% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 27.

December is the wettest month by volume, with 214 mm over about 21 wet days; June is the driest, with 20 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 8 · 65%Jun 27 · 12%
Rain on a day (%)Rain days
Jan5517
Feb4813
Mar5216
Apr3812
May268
Jun154
Jul145
Aug165
Sep299
Oct4213
Nov6218
Dec6521

Monthly rainfall

Over a full year, Cantagalo collects about 1148 mm of rain across 140 wet days — roughly 96 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 214 mm, while June is the driest at just 20 mm. The three wettest months alone bring about 51% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec192101127664420202358102184214
Rainfall (mm)Rain days
Jan19217
Feb10113
Mar12716
Apr6612
May448
Jun204
Jul205
Aug235
Sep589
Oct10213
Nov18418
Dec21421

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Cantagalo, 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 March 29 and lasts for 5.7 months, ending around September 16. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 63% of the time on average.

The cloudier part of the year begins around September 17 and lasts for 6.3 months, ending around March 28. The cloudiest month is November, when it is overcast or mostly cloudy 79% 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%JanFebMarAprMayJunJulAugSepOctNovDecJun 11 · 64%Nov 9 · 20%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3070
Feb4060
Mar3961
Apr5248
May5545
Jun6337
Jul6238
Aug6238
Sep4654
Oct3070
Nov2179
Dec2476

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 13 h 18 min of light; the shortest, around June 2, only 10 h 42 min — a swing of roughly 2 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.26:237:35
Feb12.86:417:27
Mar12.26:547:04
Apr11.57:056:35
May11.07:176:14
Jun10.77:306:10
Jul10.87:326:18
Aug11.27:166:31
Sep11.96:486:40
Oct12.56:196:50
Nov13.16:037:07
Dec13.36:067:26

Sunny days

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

Cantagalo averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 14 days.

The sunnier stretch runs 5.2 months, from around Apr 17 to Sep 20. The sunniest month is July, with roughly 14 sunny days (mixed).

The greyest month is December, down near 3 sunny days — about 79% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 2714 daysDec 32 days
Sunny daysSky
Jan5Gloomy
Feb7Gloomy
Mar6Gloomy
Apr8Mixed
May10Mixed
Jun12Mixed
Jul14Mixed
Aug14Mixed
Sep10Mixed
Oct5Gloomy
Nov2Gloomy
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 Cantagalo, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.9 months, from around October 8 to May 6. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around May 7 to October 7, and July is the most comfortable month — the air is dry or comfortable 75% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 18 · 77%Jan 1 · 0%oppressivehumidcomfortablemuggydryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan0056530
Feb0057124
Mar00116821
Apr0828604
May63046190
Jun12453930
Jul19562500
Aug20492910
Sep103643110
Oct41839381
Nov1928557
Dec01116622

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 Cantagalo is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmSep 18 · 7 km/hApr 4 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar5calm
Apr5calm
May5calm
Jun5calm
Jul6calm
Aug6calm
Sep7calm
Oct7calm
Nov6calm
Dec6calm

Hazard calendar for Cantagalo

In seasonPeak

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

Cantagalo's monsoon runs October–March, when most of the year's rain falls.

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

Best time to visit Cantagalo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid September, Cantagalo 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 Cantagalo for general outdoor tourist activities is from late April to late September, with a peak score in the last week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 24 · 8.2

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
Feb4.8fair
Mar5.0fair
Apr6.3good
May7.3good
Jun8.1ideal
Jul8.1ideal
Aug7.9ideal
Sep7.0good
Oct6.0good
Nov5.0fair
Dec4.7fair

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 Cantagalo for hot-weather activities is from mid January to late October, with a peak score in the last week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 29 · 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 Cantagalo, 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.

Cantagalo packs about the same all year — highs hold near 29°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Cantagalo sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 13 days see rain.

UV index (midday) in Cantagalo 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 Cantagalo peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jul 10UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Average hourly UV index in Cantagalo

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
Feb8.57
Mar86
Apr74.5
May62.5
Jun5.51.5
Jul5.51.5
Aug6.53.5
Sep74
Oct86
Nov8.56.5
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Cantagalo 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. Cantagalo banks about 4,296 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan447
Feb409
Mar432
Apr374
May313
Jun273
Jul271
Aug291
Sep320
Oct368
Nov374
Dec424

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.

Cantagalo receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.5 and 6.0 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Sep 28 to Apr 1. The brightest month is February, averaging about 5.9 kWh/m² (bright).

The dimmest month is June, down near 3.5 kWh/m² — roughly 41% less than the February peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseFeb 86.0 kWhJun 223.5 kWh
Solar energy (kWh/m²)Level
Jan5.8Bright
Feb6.0Bright
Mar5.1Bright
Apr4.4Bright
May3.7Moderate
Jun3.5Moderate
Jul3.6Moderate
Aug4.3Bright
Sep4.7Bright
Oct5.0Bright
Nov5.0Bright
Dec5.5Bright

Where is Cantagalo?

Cantagalo sits at 22.0°S, 42.4°W, 431 m above sea level, in Brazil. The nearest listed city is Cordeiro, 5.0 km away.

Topography around Cantagalo

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

Within 3 km, the terrain around Cantagalo has significant variations in elevation — a maximum elevation change of 480 m around an average of 500 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 930 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,215 m.

The land around Cantagalo is covered by trees (56%) and grassland (39%) within 3 km, trees (51%) and grassland (48%) within 16 km, and grassland (52%) and trees (45%) within 80 km.

3 km
480 m
16 km
930 m
80 km
2,215 m
treesgrasslandartificial surfaceswaterwetland
Nearby: Cordeiro 5.0 km · Bom Jardim 20 km · Carmo 25 km · Sumidouro 33 km · Além Paraíba 36 km · Nova Friburgo 37 km · Itaocara 46 km · Conceição de Macabu 53 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Cantagalo (-21.9811°, -42.3681°, elevation 431 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).