Climate and average weather in São Francisco

In São Francisco, the weather is sweltering, wet, and partly cloudy and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around December.

Best: late April to late August

Over the course of the year, the temperature in São Francisco typically varies from 18°C to 34°C, and is rarely below 16°C or above 38°C. October is the hottest month of the year, while June is the coldest.

Based on the travel score, the best time of year to visit São Francisco for warm-weather activities is from late April to late August.

Hottest
Oct
34°
Coldest
Jun
19°
Wettest
Dec
176 mm
Driest
Jul
0 mm
Rain / yr
837 mm
91 wet days
Daylight
11.1–12.9 h
shortest–longest
Elevation
465 m
15.9°S
Clearest
Aug
28% cloud

São Francisco is town in Minas Gerais, Brazil.

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

São Francisco 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 late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in São Francisco stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 34°C and low of 22°C; the coolest is June, with an average low of 19°C and high of 30°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in September.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3122
Feb3122
Mar3122
Apr3121
May3020
Jun3019
Jul3018
Aug3119
Sep3321
Oct3422
Nov3122
Dec3122

How hot and cold São Francisco 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, São Francisco feels like about 34°C (around September 29). About 234 days a year carry some heat stress, peaking in September.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33312222
Feb33312222
Mar33312222
Apr32312121
May31302020
Jun30301919
Jul30301818
Aug31311919
Sep33332121
Oct34342222
Nov32312222
Dec32312222

Average hourly temperature in São Francisco

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 October afternoons, near 34°C, and coldest before dawn in June, near 19°C.

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

São Francisco 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° / 22°13814.212.84.0
Feb31° / 22°1031212.54.0
Mar31° / 22°12313.412.14.1
Apr31° / 21°436.711.74.9
May30° / 20°112.211.35.8
Jun30° / 19°20.411.16.5
Jul30° / 18°0011.16.6
Aug31° / 19°20.411.55.7
Sep33° / 21°101.811.94.1
Oct34° / 22°637.412.43.4
Nov31° / 22°16615.912.73.7
Dec31° / 22°17616.712.93.8

Chance of rain

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

São Francisco gets about 837 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 5.8 months, from around Oct 20 to Apr 13, peaking in December at about 58% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 10.

December is the wettest month by volume, with 176 mm over about 17 wet days; July is the driest, with 0 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 3 · 58%Jul 10 · 0%
Rain on a day (%)Rain days
Jan4614
Feb4312
Mar4213
Apr227
May72
Jun10
Jul00
Aug10
Sep72
Oct247
Nov5216
Dec5417

Monthly rainfall

Over a full year, São Francisco collects about 837 mm of rain across 91 wet days — roughly 70 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 176 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 57% of the year’s total.

050100150200JanFebMarAprMayJunJulAugSepOctNovDec13810312343112021063166176
Rainfall (mm)Rain days
Jan13814
Feb10312
Mar12313
Apr437
May112
Jun20
Jul00
Aug20
Sep102
Oct637
Nov16616
Dec17617

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In São Francisco, 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 April 9 and lasts for 6.3 months, ending around October 16. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 85% of the time on average.

The cloudier part of the year begins around October 17 and lasts for 5.7 months, ending around April 8. The cloudiest month is December, when it is overcast or mostly cloudy 72% 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%JanFebMarAprMayJunJulAugSepOctNovDecJul 14 · 86%Dec 2 · 23%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3664
Feb4159
Mar4654
Apr6436
May6931
Jun7921
Jul8515
Aug8416
Sep7723
Oct5743
Nov3268
Dec2872

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 54 min of light; the shortest, around May 29, only 11 h 06 min — a swing of roughly 1 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.86:437:34
Feb12.56:587:30
Mar12.17:067:12
Apr11.77:106:49
May11.37:186:33
Jun11.17:286:31
Jul11.17:316:39
Aug11.57:206:47
Sep11.96:566:51
Oct12.46:346:55
Nov12.76:227:07
Dec12.96:277:24

Sunny days

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

São Francisco averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 21 days.

The sunnier stretch runs 6.1 months, from around Apr 16 to Oct 17. The sunniest month is August, with roughly 20 sunny days (bright).

The greyest month is November, down near 5 sunny days — about 77% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2921 daysNov 273 days
Sunny daysSky
Jan7Gloomy
Feb7Mixed
Mar9Mixed
Apr13Mixed
May15Mixed
Jun18Bright
Jul20Bright
Aug21Bright
Sep18Bright
Oct12Mixed
Nov5Gloomy
Dec5Gloomy

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 São Francisco, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.7 months, from around October 27 to May 19. The muggiest month is March, when the air feels humid, muggy or worse about 99% of the time.

The most comfortable stretch runs from around May 20 to October 26, and August is the most comfortable month — the air is dry or comfortable 98% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 7 · 99%Mar 24 · 0%oppressivecomfortablemuggyhumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan05195026
Feb03235124
Mar01195525
Apr07364710
May63145170
Jun25561710
Jul5642300
Aug7028200
Sep51331340
Oct242826202
Nov310244913
Dec03205226

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 São Francisco is typically calm, near 9 km/h, and varies little with the seasons.

The windier part of the year lasts 5.3 months, from around May 28 to Nov 4. The windiest month is September, averaging about 11 km/h (calm).

The calmer part of the year runs from around Nov 5 to May 27, with March the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeSep 8 · 11 km/hMar 14 · 7 km/h
Wind speed (km/h)Feels
Jan8calm
Feb7calm
Mar7calm
Apr8calm
May9calm
Jun10calm
Jul10calm
Aug11calm
Sep11calm
Oct10calm
Nov8calm
Dec7calm

Hazard calendar for São Francisco

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

São Francisco's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit São Francisco

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid August, São Francisco 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 São Francisco for general outdoor tourist activities is from late April to late August, with a peak score in the first week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 2 · 6.7

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
Jan4.0fair
Feb4.0fair
Mar4.1fair
Apr4.9fair
May5.8good
Jun6.5good
Jul6.6good
Aug5.7good
Sep4.1fair
Oct3.4poor
Nov3.7fair
Dec3.8fair

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 São Francisco for hot-weather activities is from mid April to late September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 10 · 9.0

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 São Francisco, 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.

São Francisco packs about the same all year — highs hold near 34°C. Across the year the things worth having are light clothes and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In October, São Francisco sees daytime highs around 34°C and nights near 22°C. Pack light clothes and sun protection. About 7 days see rain.

UV index (midday) in São Francisco 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 São Francisco peaks around February 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 16UV 15Jul 11UV 8
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme

Average hourly UV index in São Francisco

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 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)
Jan8.56.5
Feb8.57
Mar86.5
Apr7.56
May74.5
Jun6.54
Jul6.53.5
Aug75
Sep7.55.5
Oct8.56.5
Nov8.57
Dec8.56.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

São Francisco 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. São Francisco banks about 5,849 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan510
Feb467
Mar511
Apr486
May470
Jun427
Jul435
Aug470
Sep517
Oct558
Nov496
Dec502

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.

São Francisco receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.6 and 6.5 kWh/m².

The brighter stretch of the year lasts 3.2 months, from around Aug 17 to Nov 21. The brightest month is October, averaging about 6.4 kWh/m² (intense).

The dimmest month is June, down near 4.6 kWh/m² — roughly 28% less than the October peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseOct 116.5 kWhJun 84.6 kWh
Solar energy (kWh/m²)Level
Jan6.2Intense
Feb6.3Intense
Mar5.6Bright
Apr5.3Bright
May4.8Bright
Jun4.5Bright
Jul4.8Bright
Aug5.6Bright
Sep6.3Intense
Oct6.4Intense
Nov5.7Bright
Dec5.9Bright

Where is São Francisco?

São Francisco sits at 15.9°S, 44.9°W, 465 m above sea level, in Brazil. The nearest listed city is Brasília de Minas, 54 km away.

Topography around São Francisco

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

Within 3 km, the terrain around São Francisco has only modest variations in elevation — a maximum elevation change of 68 m around an average of 473 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 258 m; within 80 km, significant variations in elevation — a maximum elevation change of 474 m.

The land around São Francisco is covered by grassland (27%) and artificial surfaces (20%) within 3 km, shrubs (34%), grassland (28%) and trees (24%) within 16 km, and shrubs (49%), grassland (24%) and trees (23%) within 80 km.

3 km
68 m
16 km
258 m
80 km
474 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Brasília de Minas 54 km · Januária 75 km · São João da Ponte 92 km · Varzelândia 94 km · Urucuia 96 km · Coração de Jesus 98 km · Itacarambi 125 km · Arinos 133 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 São Francisco (-15.9486°, -44.8644°, elevation 465 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).