Climate and average weather in Cachoeirinha

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

Best: late April to mid November

Over the course of the year, the temperature in Cachoeirinha typically varies from 18°C to 30°C, and is rarely below 16°C or above 32°C. December is the hottest month of the year, while July is the coldest.

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

Hottest
Dec
30°
Coldest
Jul
18°
Wettest
Mar
39 mm
Driest
Oct
9 mm
Rain / yr
299 mm
86 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
530 m
8.5°S
Clearest
Oct
50% cloud

Cachoeirinha 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 mid November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Cachoeirinha stay fairly even through the year, without a distinct hot or cool season. The warmest month is December, with an average high of 30°C and low of 20°C; the coolest is July, with an average low of 18°C and high of 25°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)
Jan3020
Feb3020
Mar3021
Apr2920
May2720
Jun2519
Jul2518
Aug2518
Sep2718
Oct2919
Nov3019
Dec3020

Average hourly temperature in Cachoeirinha

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 December afternoons, near 30°C, and coldest before dawn in July, near 18°C.

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

Cachoeirinha 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° / 20°318.812.45.3
Feb30° / 20°318.512.35.2
Mar30° / 21°3910.612.15.1
Apr29° / 20°3610.511.85.5
May27° / 20°379.611.66.5
Jun25° / 19°368.211.56.9
Jul25° / 18°268.711.67.0
Aug25° / 18°186.411.77.2
Sep27° / 18°114.3127.4
Oct29° / 19°92.612.26.7
Nov30° / 19°92.912.46.0
Dec30° / 20°144.412.55.6

Chance of rain

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

Cachoeirinha gets about 299 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 6.8 months, from around Jan 8 to Aug 3, peaking in March at about 37% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 30.

March is the wettest month by volume, with 39 mm over about 11 wet days; October is the driest, with 9 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 27 · 37%Sep 30 · 7%
Rain on a day (%)Rain days
Jan289
Feb319
Mar3411
Apr3611
May3010
Jun278
Jul289
Aug216
Sep144
Oct93
Nov103
Dec144

Monthly rainfall

Over a full year, Cachoeirinha collects about 299 mm of rain across 86 wet days — roughly 25 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 39 mm, while October is the driest at just 9 mm. The three wettest months alone bring about 38% of the year’s total.

02550JanFebMarAprMayJunJulAugSepOctNovDec3131393637362618119914
Rainfall (mm)Rain days
Jan319
Feb319
Mar3911
Apr3611
May3710
Jun368
Jul269
Aug186
Sep114
Oct93
Nov93
Dec144

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Cachoeirinha, 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 13 and lasts for 3.9 months, ending around January 10. The clearest month is October, 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 6 and lasts for 5.3 months, ending around September 12. The cloudiest month is August, when it is overcast or mostly cloudy 60% 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 1 · 69%Jul 29 · 37%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearer
Clearer (%)Cloudier (%)
Jan5347
Feb5050
Mar5446
Apr5050
May4852
Jun4555
Jul4060
Aug4060
Sep5644
Oct6634
Nov6238
Dec6040

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 12 h 30 min of light; the shortest, around May 30, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.45:215:48
Feb12.35:315:48
Mar12.15:335:36
Apr11.85:315:20
May11.65:335:10
Jun11.55:405:10
Jul11.65:445:17
Aug11.75:375:21
Sep12.05:215:18
Oct12.25:045:16
Nov12.44:585:22
Dec12.55:065:36

Sunny days

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

Cachoeirinha averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 11 days.

The sunnier stretch runs 6.7 months, from around Sep 16 to Apr 8. The sunniest month is December, with roughly 11 sunny days (mixed).

The greyest month is July, down near 3 sunny days — about 74% fewer than the December peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedDec 811 daysJul 232 days
Sunny daysSky
Jan8Mixed
Feb7Gloomy
Mar8Mixed
Apr6Gloomy
May5Gloomy
Jun3Gloomy
Jul3Gloomy
Aug4Gloomy
Sep7Gloomy
Oct10Mixed
Nov10Mixed
Dec11Mixed

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.

Cachoeirinha is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 68% of the time. Even in August, the mildest month, the air is dry or comfortable only 2% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmuggyhumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan032672
Feb018803
Mar011854
Apr09865
May011872
Jun032670
Jul163360
Aug279180
Sep278200
Oct171280
Nov063370
Dec050500

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 Cachoeirinha is typically light breeze, near 12 km/h, and varies little with the seasons.

The windier part of the year lasts 6.6 months, from around Jun 8 to Dec 24. The windiest month is September, averaging about 14 km/h (light breeze).

The calmer part of the year runs from around Dec 25 to Jun 7, with March the calmest month at about 10 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeSep 9 · 14 km/hMar 26 · 10 km/h
Wind speed (km/h)Feels
Jan11calm
Feb11calm
Mar10calm
Apr10calm
May11calm
Jun12light breeze
Jul13light breeze
Aug13light breeze
Sep14light breeze
Oct13light breeze
Nov13light breeze
Dec12light breeze

Best time to visit Cachoeirinha

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationSep 24 · 7.5

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
Jan5.3fair
Feb5.2fair
Mar5.1fair
Apr5.6good
May6.5good
Jun6.9good
Jul7.0good
Aug7.2good
Sep7.4good
Oct6.7good
Nov6.0good
Dec5.6good

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationOct 27 · 8.3

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 Cachoeirinha, 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.

Cachoeirinha packs about the same all year — highs hold near 30°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 December, Cachoeirinha sees daytime highs around 30°C and nights near 20°C. Pack light clothes and sun protection. About 4 days see rain.

UV index (midday) in Cachoeirinha 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 Cachoeirinha peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 14UV 15Jun 23UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep13Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme

Average hourly UV index in Cachoeirinha

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 March the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 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)
Jan8.56.5
Feb8.56.5
Mar8.56.5
Apr86
May7.55.5
Jun75
Jul7.55
Aug7.55
Sep86
Oct86
Nov86
Dec86
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Cachoeirinha 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. Cachoeirinha banks about 4,966 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan464
Feb421
Mar469
Apr434
May415
Jun362
Jul349
Aug354
Sep374
Oct425
Nov437
Dec463

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.

Cachoeirinha receives about 5.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.9 and 6.4 kWh/m².

The brighter stretch of the year lasts 6.9 months, from around Sep 13 to Apr 11. The brightest month is December, averaging about 6.3 kWh/m² (intense).

The dimmest month is June, down near 4.0 kWh/m² — roughly 36% less than the December peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 26.4 kWhJun 273.9 kWh
Solar energy (kWh/m²)Level
Jan6.0Intense
Feb6.0Intense
Mar5.9Bright
Apr5.3Bright
May4.4Bright
Jun4.0Moderate
Jul4.0Moderate
Aug4.6Bright
Sep5.5Bright
Oct6.1Intense
Nov6.4Intense
Dec6.3Intense

Where is Cachoeirinha?

Cachoeirinha sits at 8.5°S, 36.2°W, 530 m above sea level, in Brazil. The nearest listed city is Altinho, 19 km away.

Topography around Cachoeirinha

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

Within 3 km, the terrain around Cachoeirinha has only modest variations in elevation — a maximum elevation change of 49 m around an average of 544 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 419 m; within 80 km, large variations in elevation — a maximum elevation change of 1,097 m.

The land around Cachoeirinha is covered by cropland (60%) and grassland (32%) within 3 km, grassland (49%) and cropland (37%) within 16 km, and grassland (56%) and shrubs (23%) within 80 km.

3 km
49 m
16 km
419 m
80 km
1,097 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Altinho 19 km · São Caitano 20 km · Lajedo 22 km · São Bento do Una 24 km · Belo Jardim 27 km · Panelas 32 km · Agrestina 32 km · Jupi 32 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 Cachoeirinha (-8.4864°, -36.2331°, elevation 530 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).