Climate and average weather in Riachão do Jacuípe

In Riachão do Jacuípe, the summers are humid, sweltering, showery, and partly cloudy and the winters are warm and partly cloudy.

Best: late May to late September

Over the course of the year, the temperature in Riachão do Jacuípe typically varies from 19°C to 33°C, and is rarely below 17°C or above 37°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 Riachão do Jacuípe for warm-weather activities is from late May to late September.

Hottest
Feb
33°
Coldest
Jul
19°
Wettest
Jan
57 mm
Driest
Sep
16 mm
Rain / yr
430 mm
99 wet days
Daylight
11.3–12.7 h
shortest–longest
Elevation
217 m
11.8°S
Clearest
Oct
54% cloud

Riachão do Jacuípe 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 May to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Riachão do Jacuípe stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 33°C and low of 23°C; the coolest is July, with an average low of 19°C and high of 27°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 11°C) in October.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3323
Feb3323
Mar3323
Apr3122
May2921
Jun2820
Jul2719
Aug2819
Sep3020
Oct3221
Nov3322
Dec3322

How hot and cold Riachão do Jacuípe really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Riachão do Jacuípe feels like about 36°C (around March 7). About 227 days a year carry some heat stress, peaking in March.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan36332323
Feb36332323
Mar36332323
Apr34312222
May31292121
Jun29282020
Jul28271919
Aug29281919
Sep31302020
Oct34322121
Nov35332222
Dec35332222

Average hourly temperature in Riachão do Jacuípe

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 33°C, and coldest before dawn in July, near 19°C.

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

Riachão do Jacuípe 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
Jan33° / 23°577.812.63.5
Feb33° / 23°43812.43.4
Mar33° / 23°549.612.13.5
Apr31° / 22°4111.711.74.1
May29° / 21°3611.311.55.1
Jun28° / 20°3211.311.36.0
Jul27° / 19°2610.111.46.4
Aug28° / 19°22811.66.1
Sep30° / 20°165.311.95.3
Oct32° / 21°19412.34.3
Nov33° / 22°42612.53.8
Dec33° / 22°446.312.73.6

Chance of rain

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

Riachão do Jacuípe gets about 430 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 6.3 months, from around Feb 9 to Aug 19, peaking in April at about 40% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 1.

January is the wettest month by volume, with 57 mm over about 8 wet days; September is the driest, with 16 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetApr 14 · 40%Oct 1 · 12%
Rain on a day (%)Rain days
Jan258
Feb298
Mar3110
Apr3912
May3711
Jun3711
Jul3210
Aug278
Sep175
Oct134
Nov196
Dec216

Monthly rainfall

Over a full year, Riachão do Jacuípe collects about 430 mm of rain across 99 wet days — roughly 36 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 57 mm, while September is the driest at just 16 mm. The three wettest months alone bring about 36% of the year’s total.

0255075JanFebMarAprMayJunJulAugSepOctNovDec574354413632262216194244
Rainfall (mm)Rain days
Jan578
Feb438
Mar5410
Apr4112
May3611
Jun3211
Jul2610
Aug228
Sep165
Oct194
Nov426
Dec446

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Riachão do Jacuípe, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around September 13 and lasts for 1.7 months, ending around November 2. The clearest month is October, when the sky is clear, mostly clear, or partly cloudy 55% of the time on average.

The cloudier part of the year begins around July 26 and lasts for 1.6 months, ending around September 12. The cloudiest month is August, 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%JanFebMarAprMayJunJulAugSepOctNovDecOct 1 · 60%Aug 14 · 41%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4852
Feb5248
Mar5248
Apr5347
May4654
Jun5149
Jul5050
Aug4456
Sep5347
Oct5545
Nov4555
Dec4654

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 42 min of light; the shortest, around June 3, only 11 h 18 min — a swing of roughly 1 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.65:286:06
Feb12.45:406:04
Mar12.15:455:50
Apr11.75:465:30
May11.55:505:18
Jun11.35:585:17
Jul11.46:025:24
Aug11.65:535:30
Sep11.95:345:30
Oct12.35:155:31
Nov12.55:065:39
Dec12.75:135:54

Sunny days

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

Riachão do Jacuípe averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 10 days.

The sunnier stretch runs 2.0 months, from around Sep 16 to Nov 16. The sunniest month is October, with roughly 9 sunny days (mixed).

The greyest month is August, down near 4 sunny days — about 57% fewer than the October peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedOct 210 daysAug 143 days
Sunny daysSky
Jan7Gloomy
Feb7Gloomy
Mar8Gloomy
Apr7Gloomy
May6Gloomy
Jun4Gloomy
Jul4Gloomy
Aug4Gloomy
Sep7Gloomy
Oct9Mixed
Nov7Gloomy
Dec7Gloomy

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.

Riachão do Jacuípe 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 87% of the time. Even in September, 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%JanFebMarAprMayJunJulAugSepOctNovDecoppressivemuggyhumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan0136918
Feb086924
Mar055837
Apr035245
May057025
Jun014824
Jul240590
Aug256420
Sep252450
Oct144523
Nov125659
Dec0186715

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 Riachão do Jacuípe is steady company: average speeds sit near 12 km/hlight breeze — in every month of the year, with no meaningful windy or calm season.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeSep 10 · 13 km/hMar 13 · 11 km/h
Wind speed (km/h)Feels
Jan11calm
Feb11calm
Mar11calm
Apr11calm
May12light breeze
Jun13light breeze
Jul13light breeze
Aug13light breeze
Sep13light breeze
Oct13light breeze
Nov12calm
Dec11calm

Best time to visit Riachão do Jacuípe

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late May, Riachão do Jacuípe 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 Riachão do Jacuípe for general outdoor tourist activities is from late May to late September, with a peak score in the first week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 3 · 6.5

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
Jan3.5poor
Feb3.4poor
Mar3.5poor
Apr4.1fair
May5.0fair
Jun6.0good
Jul6.4good
Aug6.1good
Sep5.3fair
Oct4.3fair
Nov3.8fair
Dec3.6fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, Riachão do Jacuípe suits hot-weather activities for most of the year, with a peak score in the last week of September.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbeach/pool scoretemperaturecloudsprecipitationSep 24 · 7.5

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 Riachão do Jacuípe, 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 February (highs near 33°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 27°C), pack light clothes and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Riachão do Jacuípe sees daytime highs around 33°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

UV index (midday) in Riachão do Jacuípe 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 Riachão do Jacuípe peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jun 23UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep11Extreme
Oct12Extreme
Nov13Extreme
Dec12Extreme

Average hourly UV index in Riachão do Jacuípe

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 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
Apr7.55.5
May74.5
Jun6.54
Jul74.5
Aug75
Sep7.55.5
Oct86
Nov86
Dec8.56.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Riachão do Jacuípe 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. Riachão do Jacuípe banks about 5,898 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan558
Feb506
Mar557
Apr507
May475
Jun417
Jul410
Aug420
Sep454
Oct520
Nov522
Dec551

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.

Riachão do Jacuípe receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.5 and 6.2 kWh/m².

The brighter stretch of the year lasts 6.8 months, from around Sep 17 to Apr 10. The brightest month is December, averaging about 6.1 kWh/m² (intense).

The dimmest month is June, down near 3.5 kWh/m² — roughly 42% less than the December peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 256.2 kWhJun 183.5 kWh
Solar energy (kWh/m²)Level
Jan6.1Intense
Feb6.0Bright
Mar5.7Bright
Apr4.9Bright
May3.9Moderate
Jun3.5Moderate
Jul3.7Moderate
Aug4.1Bright
Sep5.0Bright
Oct5.8Bright
Nov5.9Bright
Dec6.1Intense

Where is Riachão do Jacuípe?

Riachão do Jacuípe sits at 11.8°S, 39.4°W, 217 m above sea level, in Brazil. The nearest listed city is Conceição do Coité, 29 km away.

Topography around Riachão do Jacuípe

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

Within 3 km, the terrain around Riachão do Jacuípe has only modest variations in elevation — a maximum elevation change of 40 m around an average of 222 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 170 m; within 80 km, large variations in elevation — a maximum elevation change of 609 m.

The land around Riachão do Jacuípe is covered by grassland (82%) within 3 km, grassland (93%) within 16 km, and grassland (80%) within 80 km.

3 km
40 m
16 km
170 m
80 km
609 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Conceição do Coité 29 km · Serra Preta 40 km · Serrinha 44 km · Valente 45 km · Barrocas 46 km · Santa Bárbara 48 km · Ipirá 55 km · Teofilândia 56 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 Riachão do Jacuípe (-11.8069°, -39.3856°, elevation 217 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).