Climate and average weather in Ijuí

In Ijuí, the summers are humid, hot, showery, and partly cloudy and the winters are mild and partly cloudy.

Best: late March to late November

Over the course of the year, the temperature in Ijuí typically varies from 10°C to 30°C, and is rarely below 2°C or above 34°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 Ijuí for warm-weather activities is from late March to late November.

Hottest
Jan
30°
Coldest
Jul
10°
Wettest
Oct
234 mm
Driest
Aug
108 mm
Rain / yr
1898 mm
135 wet days
Daylight
10.2–13.8 h
shortest–longest
Elevation
329 m
28.4°S
Clearest
Aug
48% cloud

Ijuí 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 March to late November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.7 months, from November 9 to March 31, with daily high temperatures above 28°C. The hottest month of the year in Ijuí is January, with an average high of 30°C and low of 20°C.

The cool season lasts 2.7 months, from May 21 to August 10, with daily high temperatures below 21°C. The coldest month of the year in Ijuí is July, with an average low of 10°C and high of 19°C.

Days typically run about 10°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3020
Feb2919
Mar2918
Apr2616
May2212
Jun2011
Jul1910
Aug2211
Sep2313
Oct2615
Nov2817
Dec3019

Average hourly temperature in Ijuí

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 30°C, and coldest before dawn in July, near 10°C.

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

Ijuí 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°17314.713.64.5
Feb29° / 19°14513.7134.8
Mar29° / 18°13611.712.25.6
Apr26° / 16°16210.111.36.7
May22° / 12°143910.66.9
Jun20° / 11°1449.810.26.3
Jul19° / 10°1579.910.46.3
Aug22° / 11°1088.8117.0
Sep23° / 13°15610.311.86.8
Oct26° / 15°23413.212.76.2
Nov28° / 17°1621113.45.9
Dec30° / 19°17913.113.84.8

Chance of rain

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

Ijuí gets about 1898 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 3.5 months, from around Nov 29 to Mar 15, peaking in February at about 50% chance on a given day. The drier stretch runs the rest of the year, bottoming out around May 7.

October is the wettest month by volume, with 234 mm over about 13 wet days; August is the driest, with 108 mm.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetFeb 1 · 50%May 7 · 28%
Rain on a day (%)Rain days
Jan4815
Feb4914
Mar3812
Apr3410
May299
Jun3310
Jul3210
Aug299
Sep3510
Oct4213
Nov3711
Dec4213

Monthly rainfall

Over a full year, Ijuí collects about 1898 mm of rain across 135 wet days — roughly 158 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 234 mm, while August is the driest at just 108 mm. The three wettest months alone bring about 31% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec173145136162143144157108156234162179
Rainfall (mm)Rain days
Jan17315
Feb14514
Mar13612
Apr16210
May1439
Jun14410
Jul15710
Aug1089
Sep15610
Oct23413
Nov16211
Dec17913

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Ijuí, the average share of the sky covered by clouds shows mild seasonal variation over the course of the year.

The clearer part of the year begins around November 8 and lasts for 5.3 months, ending around April 17. The clearest month is March, when the sky is clear, mostly clear, or partly cloudy 56% of the time on average.

The cloudier part of the year begins around September 3 and lasts for 2.2 months, ending around November 7. The cloudiest month is October, when it is overcast or mostly cloudy 55% 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%JanFebMarAprMayJunJulAugSepOctNovDecMar 12 · 57%Oct 11 · 42%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan5644
Feb5545
Mar5644
Apr5347
May4951
Jun4852
Jul5347
Aug5644
Sep4951
Oct4555
Nov5545
Dec5545

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 48 min of light; the shortest, around June 9, only 10 h 12 min — a swing of roughly 3 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.66:568:34
Feb13.07:208:21
Mar12.27:397:52
Apr11.37:567:16
May10.68:146:50
Jun10.28:306:42
Jul10.48:316:52
Aug11.08:107:09
Sep11.87:357:25
Oct12.77:007:41
Nov13.46:388:04
Dec13.86:388:26

Sunny days

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

Ijuí averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 14 days.

The sunnier stretch runs 2.4 months, from around Jul 7 to Sep 18. The sunniest month is August, with roughly 14 sunny days (mixed).

The greyest month is October, down near 10 sunny days — about 26% fewer than the August peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightAug 2214 daysOct 89 days
Sunny daysSky
Jan12Mixed
Feb11Mixed
Mar12Mixed
Apr12Mixed
May11Mixed
Jun11Mixed
Jul13Mixed
Aug14Mixed
Sep12Mixed
Oct10Mixed
Nov13Mixed
Dec12Mixed

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 Ijuí, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.2 months, from around October 15 to April 20. The muggiest month is January, when the air feels humid, muggy or worse about 90% of the time.

The most comfortable stretch runs from around April 21 to October 14, and July is the most comfortable month — the air is dry or comfortable 89% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 24 · 91%Jan 30 · 8%oppressivecomfortablemuggyhumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan28214226
Feb39194228
Mar615303711
Apr252127252
May50242150
Jun56271610
Jul62281100
Aug56301300
Sep46262340
Oct292428181
Nov232528222
Dec917293213

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 Ijuí 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 6 · 13 km/hFeb 24 · 11 km/h
Wind speed (km/h)Feels
Jan11calm
Feb11calm
Mar11calm
Apr11calm
May11calm
Jun12light breeze
Jul12light breeze
Aug13light breeze
Sep13light breeze
Oct13light breeze
Nov13light breeze
Dec12calm

Best time to visit Ijuí

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid November, Ijuí 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 Ijuí for general outdoor tourist activities is from late March to late November, with a peak score in the first week of May.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationMay 3 · 7.2

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
Jan4.5fair
Feb4.8fair
Mar5.6good
Apr6.7good
May6.9good
Jun6.3good
Jul6.4good
Aug7.0good
Sep6.8good
Oct6.3good
Nov5.9good
Dec4.8fair

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 Ijuí for hot-weather activities is from late September to early May, with a peak score in the last week of November.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationNov 23 · 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 Ijuí, 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 30°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 19°C), pack rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Ijuí sees daytime highs around 30°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

UV index (midday) in Ijuí 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 Ijuí peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 20UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct7High
Nov11Extreme
Dec13Extreme

Average hourly UV index in Ijuí

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
Mar85.5
Apr6.53.5
May50
Jun30
Jul3.50
Aug50
Sep6.53.5
Oct6.53
Nov8.56
Dec97

Air quality in Ijuí 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 Ijuí is worst in September — around 15 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1515 µg/m³Mar 166 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr6Good
May6Good
Jun7Good
Jul7Good
Aug10Good
Sep15Moderate
Oct9Good
Nov6Good
Dec6Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Ijuí 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
Jun990
Jul960
Aug990
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. Ijuí banks about 3,716 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan464
Feb402
Mar415
Apr322
May223
Jun162
Jul143
Aug201
Sep242
Oct324
Nov373
Dec446

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.

Ijuí receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.5 and 6.6 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Sep 24 to Mar 27. The brightest month is December, averaging about 6.6 kWh/m² (intense).

The dimmest month is June, down near 2.6 kWh/m² — roughly 61% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 106.6 kWhJun 242.5 kWh
Solar energy (kWh/m²)Level
Jan6.5Intense
Feb5.9Bright
Mar5.1Bright
Apr4.0Bright
May3.0Moderate
Jun2.6Moderate
Jul2.8Moderate
Aug3.8Moderate
Sep4.5Bright
Oct5.2Bright
Nov6.4Intense
Dec6.6Intense

Where is Ijuí?

Ijuí sits at 28.4°S, 53.9°W, 329 m above sea level, in Brazil. The nearest listed city is Santo Ângelo, 35 km away.

Topography around Ijuí

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

Within 3 km, the terrain around Ijuí has only modest variations in elevation — a maximum elevation change of 154 m around an average of 323 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 236 m; within 80 km, significant variations in elevation — a maximum elevation change of 475 m.

The land around Ijuí is covered by artificial surfaces (47%) and trees (34%) within 3 km, cropland (66%) and trees (26%) within 16 km, and cropland (78%) within 80 km.

3 km
154 m
16 km
236 m
80 km
475 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Santo Ângelo 35 km · Cruz Alta 41 km · Panambi 42 km · Giruá 58 km · Três de Maio 75 km · Tupanciretã 77 km · Santa Rosa 80 km · Palmeira das Missões 80 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 Ijuí (-28.3878°, -53.9147°, elevation 329 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).