Climate and average weather in Alegrete

In Alegrete, the summers are humid, hot, showery, and mostly clear and the winters are mild and partly cloudy.

Best: late March to late November

Over the course of the year, the temperature in Alegrete typically varies from 10°C to 31°C, and is rarely below 2°C or above 36°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 Alegrete for warm-weather activities is from late March to late November.

Hottest
Jan
31°
Coldest
Jul
10°
Wettest
Oct
211 mm
Driest
Aug
109 mm
Rain / yr
1693 mm
116 wet days
Daylight
10.1–13.9 h
shortest–longest
Elevation
102 m
29.8°S
Clearest
Aug
48% cloud

Alegrete is human settlement in Brazil.

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

Alegrete 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 Alegrete, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.1 months, from November 19 to March 23, with daily high temperatures above 28°C. The hottest month of the year in Alegrete is January, with an average high of 31°C and low of 21°C.

The cool season lasts 2.9 months, from May 19 to August 15, with daily high temperatures below 21°C. The coldest month of the year in Alegrete 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°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3121
Feb3020
Mar2919
Apr2616
May2212
Jun1911
Jul1910
Aug2111
Sep2313
Oct2515
Nov2817
Dec3119

How hot and cold Alegrete 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, Alegrete feels like about 33°C (around January 7). About 46 days a year carry some heat stress, peaking in January.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33312121
Feb32302020
Mar30291919
Apr26261616
May22221212
Jun19191111
Jul1919810
Aug21211111
Sep23231213
Oct25251515
Nov28281717
Dec31311919

Average hourly temperature in Alegrete

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 31°C, and coldest before dawn in July, near 10°C.

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

Alegrete 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
Jan31° / 21°14311.613.74.3
Feb30° / 20°13210.713.14.7
Mar29° / 19°1249.712.25.7
Apr26° / 16°1629.511.36.9
May22° / 12°1228.410.56.9
Jun19° / 11°1349.510.16.2
Jul19° / 10°1248.910.36.4
Aug21° / 11°1098.410.97.0
Sep23° / 13°1559.611.86.9
Oct25° / 15°21111.212.76.7
Nov28° / 17°1429.113.56.3
Dec31° / 19°1369.513.94.9

Chance of rain

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

Alegrete gets about 1693 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 2.8 months, from around Dec 20 to Mar 15, peaking in January at about 40% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 13.

October is the wettest month by volume, with 211 mm over about 11 wet days; August is the driest, with 109 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetJan 31 · 40%Aug 13 · 26%
Rain on a day (%)Rain days
Jan3812
Feb3811
Mar3210
Apr3110
May278
Jun3210
Jul299
Aug288
Sep3210
Oct3511
Nov309
Dec3110

Monthly rainfall

Over a full year, Alegrete collects about 1693 mm of rain across 116 wet days — roughly 141 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 211 mm, while August is the driest at just 109 mm. The three wettest months alone bring about 31% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec143132124162122134124109155211142136
Rainfall (mm)Rain days
Jan14312
Feb13211
Mar12410
Apr16210
May1228
Jun13410
Jul1249
Aug1098
Sep15510
Oct21111
Nov1429
Dec13610

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Alegrete, 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 6 and lasts for 5.7 months, ending around April 27. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 59% of the time on average.

The cloudier part of the year begins around September 2 and lasts for 2.1 months, ending around November 5. The cloudiest month is June, when it is overcast or mostly cloudy 54% 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 16 · 60%Oct 11 · 45%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan5941
Feb5842
Mar5941
Apr5545
May4852
Jun4654
Jul5347
Aug5743
Sep5149
Oct4753
Nov5743
Dec5842

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 54 min of light; the shortest, around June 9, only 10 h 06 min — a swing of roughly 3 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.77:018:44
Feb13.17:268:30
Mar12.27:468:00
Apr11.38:057:22
May10.58:246:55
Jun10.18:406:46
Jul10.38:416:57
Aug10.98:207:15
Sep11.87:437:32
Oct12.77:067:50
Nov13.56:438:14
Dec13.96:428:36

Sunny days

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

Alegrete averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 15 days.

The sunnier stretch runs 5.7 months, from around Oct 30 to Apr 21. The sunniest month is November, with roughly 14 sunny days (mixed).

The greyest month is June, down near 10 sunny days — about 29% fewer than the November peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightNov 2315 daysJun 239 days
Sunny daysSky
Jan14Mixed
Feb12Mixed
Mar14Mixed
Apr13Mixed
May11Mixed
Jun10Mixed
Jul13Mixed
Aug14Mixed
Sep11Mixed
Oct11Mixed
Nov14Mixed
Dec14Mixed

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

The more humid part of the year lasts 6.1 months, from around October 20 to April 22. The muggiest month is January, when the air feels humid, muggy or worse about 85% of the time.

The most comfortable stretch runs from around April 23 to October 19, and July is the most comfortable month — the air is dry or comfortable 87% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 25 · 89%Jan 28 · 12%oppressivemuggyhumiddrycomfortablehumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan5102134282
Feb4122035281
Mar8162733160
Apr2621252260
May4922181010
Jun601916400
Jul681911100
Aug622214200
Sep522319600
Oct3126251710
Nov2225252340
Dec12182529141

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 Alegrete is typically light breeze, near 13 km/h, and varies little with the seasons.

The windier part of the year lasts 5.1 months, from around Jul 9 to Dec 9. The windiest month is October, averaging about 15 km/h (light breeze).

The calmer part of the year runs from around Dec 10 to Jul 8, with April the calmest month at about 12 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeOct 3 · 15 km/hApr 30 · 12 km/h
Wind speed (km/h)Feels
Jan13light breeze
Feb13light breeze
Mar13light breeze
Apr12light breeze
May12light breeze
Jun13light breeze
Jul14light breeze
Aug14light breeze
Sep15light breeze
Oct15light breeze
Nov14light breeze
Dec13light breeze

Best time to visit Alegrete

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid November, Alegrete 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 Alegrete 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 1 · 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
Jan4.3fair
Feb4.7fair
Mar5.7good
Apr6.9good
May6.9good
Jun6.3good
Jul6.4good
Aug6.9good
Sep6.9good
Oct6.7good
Nov6.2good
Dec4.9fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationNov 25 · 7.3

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 Alegrete, 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 31°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, Alegrete sees daytime highs around 31°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

UV index (midday) in Alegrete 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 Alegrete peaks around January 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighHighExtremeJan 20UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct4Moderate
Nov11Extreme
Dec12Extreme

Average hourly UV index in Alegrete

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
Apr6.53.5
May40
Jun20
Jul30
Aug4.50
Sep6.53
Oct5.50
Nov8.56
Dec96.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Alegrete 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
Jun980
Jul960
Aug980
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. Alegrete banks about 3,724 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)
Jan494
Feb428
Mar429
Apr320
May218
Jun149
Jul132
Aug187
Sep227
Oct311
Nov370
Dec460

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.

Alegrete receives about 4.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.4 and 7.0 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 7.0 kWh/m² (intense).

The dimmest month is June, down near 2.5 kWh/m² — roughly 64% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 97.0 kWhJun 232.4 kWh
Solar energy (kWh/m²)Level
Jan6.7Intense
Feb6.0Intense
Mar5.2Bright
Apr3.9Moderate
May3.0Moderate
Jun2.5Moderate
Jul2.8Moderate
Aug3.7Moderate
Sep4.5Bright
Oct5.3Bright
Nov6.7Intense
Dec7.0Intense

Where is Alegrete?

Alegrete sits at 29.8°S, 55.8°W, 102 m above sea level, in Brazil. The nearest listed city is São Francisco de Assis, 69 km away.

Topography around Alegrete

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

Within 3 km, the terrain around Alegrete has only modest variations in elevation — a maximum elevation change of 48 m around an average of 86 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 335 m.

The land around Alegrete is covered by trees (27%), grassland (26%) and artificial surfaces (26%) within 3 km, grassland (69%) within 16 km, and grassland (63%) and cropland (24%) within 80 km.

3 km
48 m
16 km
130 m
80 km
335 m
treesgrasslandcroplandartificial surfaceswater
Nearby: São Francisco de Assis 69 km · Quaraí 92 km · Artigas 95 km · Rosário do Sul 100 km · Itaqui 104 km · Santiago 111 km · Uruguaiana 125 km · Paso de los Libres 125 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 Alegrete (-29.7831°, -55.7919°, elevation 102 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).