Climate and average weather in Santa Maria

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

Best: mid March to early December

Over the course of the year, the temperature in Santa Maria typically varies from 9°C to 30°C, and is rarely below 2°C or above 35°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 Santa Maria for warm-weather activities is from mid March to early December.

Hottest
Jan
30°
Coldest
Jul
Wettest
Oct
208 mm
Driest
Aug
122 mm
Rain / yr
1766 mm
133 wet days
Daylight
10.1–13.9 h
shortest–longest
Elevation
146 m
29.7°S
Clearest
Aug
52% cloud

Santa Maria is human settlement in Brazil.

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

Santa Maria 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 mid March to early December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.3 months, from November 17 to March 26, with daily high temperatures above 27°C. The hottest month of the year in Santa Maria is January, with an average high of 30°C and low of 20°C.

The cool season lasts 2.8 months, from May 20 to August 13, with daily high temperatures below 21°C. The coldest month of the year in Santa Maria is July, with an average low of 9°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
Mar2818
Apr2515
May2112
Jun1910
Jul199
Aug2111
Sep2212
Oct2414
Nov2716
Dec3018

Average hourly temperature in Santa Maria

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 C.

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

Santa Maria 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°15913.813.74.6
Feb29° / 19°14412.513.14.9
Mar28° / 18°12411.312.25.8
Apr25° / 15°14410.111.36.8
May21° / 12°1279.610.56.6
Jun19° / 10°13710.110.16.1
Jul19° / 14910.310.36.1
Aug21° / 11°1229.910.96.6
Sep22° / 12°15810.911.86.5
Oct24° / 14°20812.512.76.4
Nov27° / 16°13710.213.56.4
Dec30° / 18°15811.813.95.1

Chance of rain

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

Santa Maria gets about 1766 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 3.3 months, from around Dec 4 to Mar 13, peaking in February at about 48% chance on a given day. The drier stretch runs the rest of the year, bottoming out around May 30.

October is the wettest month by volume, with 208 mm over about 13 wet days; August is the driest, with 122 mm.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetFeb 2 · 48%May 30 · 30%
Rain on a day (%)Rain days
Jan4514
Feb4513
Mar3611
Apr3410
May3110
Jun3410
Jul3310
Aug3210
Sep3711
Oct4013
Nov3410
Dec3812

Monthly rainfall

Over a full year, Santa Maria collects about 1766 mm of rain across 133 wet days — roughly 147 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 208 mm, while August is the driest at just 122 mm. The three wettest months alone bring about 30% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec159144124144127137149122158208137158
Rainfall (mm)Rain days
Jan15914
Feb14413
Mar12411
Apr14410
May12710
Jun13710
Jul14910
Aug12210
Sep15811
Oct20813
Nov13710
Dec15812

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Santa Maria, 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 November 10 and lasts for 5.3 months, ending around April 20. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 54% of the time on average.

The cloudier part of the year begins around August 31 and lasts for 2.3 months, ending around November 9. The cloudiest month is October, when it is overcast or mostly cloudy 59% 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%JanFebMarAprMayJunJulAugSepOctNovDecNov 28 · 56%Oct 9 · 39%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan5347
Feb5347
Mar5347
Apr5050
May4654
Jun4357
Jul4852
Aug5248
Sep4456
Oct4159
Nov5149
Dec5446

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 10, 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)
Jan13.76:538:36
Feb13.17:188:22
Mar12.27:387:52
Apr11.37:577:14
May10.58:166:47
Jun10.18:326:39
Jul10.38:336:49
Aug10.98:127:07
Sep11.87:357:24
Oct12.76:587:42
Nov13.56:358:06
Dec13.96:358:28

Sunny days

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

Santa Maria averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 13 days.

The sunnier stretch runs 2.2 months, from around Nov 9 to Jan 15. The sunniest month is November, with roughly 12 sunny days (mixed).

The greyest month is October, down near 9 sunny days — about 24% fewer than the November peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergloomymixedbrightNov 2513 daysOct 98 days
Sunny daysSky
Jan11Mixed
Feb10Mixed
Mar12Mixed
Apr11Mixed
May10Mixed
Jun9Mixed
Jul12Mixed
Aug13Mixed
Sep10Mixed
Oct9Mixed
Nov12Mixed
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 Santa Maria, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.0 months, from around October 23 to April 22. The muggiest month is January, when the air feels humid, muggy or worse about 89% of the time.

The most comfortable stretch runs from around April 23 to October 22, 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 25 · 90%Jan 29 · 10%oppressivemuggycomfortablehumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan292235321
Feb392134321
Mar6142835170
Apr2322252540
May452720700
Jun582416300
Jul662311000
Aug592614100
Sep482323500
Oct2926271800
Nov1926272440
Dec8182631160

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 Santa Maria is steady company: average speeds sit near 10 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeOct 2 · 11 km/hMay 4 · 9 km/h
Wind speed (km/h)Feels
Jan10calm
Feb10calm
Mar9calm
Apr9calm
May9calm
Jun10calm
Jul10calm
Aug10calm
Sep11calm
Oct11calm
Nov11calm
Dec10calm

Best time to visit Santa Maria

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late November, Santa Maria 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 Santa Maria for general outdoor tourist activities is from mid March to early December, with a peak score in the last week of April.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationApr 26 · 6.9

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
Feb4.9fair
Mar5.8good
Apr6.8good
May6.6good
Jun6.1good
Jul6.1good
Aug6.6good
Sep6.5good
Oct6.4good
Nov6.3good
Dec5.1fair

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 Santa Maria for hot-weather activities is from mid October to late April, with a peak score in the last week of November.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationNov 25 · 6.9

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 Santa Maria, 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, Santa Maria sees daytime highs around 30°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 14 days see rain.

UV index (midday) in Santa Maria 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 Santa Maria peaks around January 19 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 highModerateVery highExtremeJan 19UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct7High
Nov11Extreme
Dec12Extreme

Average hourly UV index in Santa Maria

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
Mar7.55.5
Apr6.53.5
May40
Jun20
Jul30
Aug4.50
Sep6.53.5
Oct6.53
Nov8.56
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Santa Maria 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. Santa Maria banks about 3,489 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan459
Feb403
Mar406
Apr303
May203
Jun139
Jul121
Aug176
Sep211
Oct289
Nov347
Dec431

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.

Santa Maria receives about 4.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.4 and 6.7 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Sep 29 to Mar 26. The brightest month is December, averaging about 6.7 kWh/m² (intense).

The dimmest month is June, down near 2.4 kWh/m² — roughly 64% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 106.7 kWhJun 242.4 kWh
Solar energy (kWh/m²)Level
Jan6.4Intense
Feb5.8Bright
Mar4.9Bright
Apr3.8Moderate
May2.9Moderate
Jun2.4Moderate
Jul2.6Moderate
Aug3.5Moderate
Sep4.2Bright
Oct5.0Bright
Nov6.3Intense
Dec6.7Intense

Where is Santa Maria?

Santa Maria sits at 29.7°S, 53.8°W, 146 m above sea level, in Brazil. The nearest listed city is São Pedro do Sul, 37 km away.

Topography around Santa Maria

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

Within 3 km, the terrain around Santa Maria has significant variations in elevation — a maximum elevation change of 300 m around an average of 129 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 445 m; within 80 km, significant variations in elevation — a maximum elevation change of 589 m.

The land around Santa Maria is covered by artificial surfaces (53%) and trees (38%) within 3 km, trees (42%) and grassland (33%) within 16 km, and cropland (47%), grassland (27%) and trees (24%) within 80 km.

3 km
300 m
16 km
445 m
80 km
589 m
treesgrasslandcroplandartificial surfaceswater
Nearby: São Pedro do Sul 37 km · Júlio de Castilhos 52 km · Agudo 55 km · São Sepé 58 km · Tupanciretã 67 km · São Gabriel 88 km · Cachoeira do Sul 96 km · Caçapava do Sul 97 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 Santa Maria (-29.6842°, -53.8069°, elevation 146 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).