Climate and average weather in Santa Fe

In Santa Fe, the summers are humid, hot, showery, and mostly clear and the winters are mild and mostly clear.

Best: mid July to early December

Over the course of the year, the temperature in Santa Fe typically varies from 7°C to 31°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 times of year to visit Santa Fe for warm-weather activities are from early March to late June and mid July to early December.

Hottest
Jan
31°
Coldest
Jul
Wettest
Mar
138 mm
Driest
Jul
37 mm
Rain / yr
1132 mm
87 wet days
Daylight
9.9–14.1 h
shortest–longest
Elevation
21 m
31.6°S
Clearest
Aug
41% cloud

Santa Fe is city in and capital of Santa Fe Province, Argentina.

Density
1,460/km²
people per km²
Founded
1573

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

Santa Fe 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 July to early December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Santa Fe, 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 14 to March 19, with daily high temperatures above 27°C. The hottest month of the year in Santa Fe is January, with an average high of 31°C and low of 20°C.

The cool season lasts 2.8 months, from May 22 to August 15, with daily high temperatures below 20°C. The coldest month of the year in Santa Fe is July, with an average low of 7°C and high of 17°C.

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

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3120
Feb2920
Mar2818
Apr2415
May2012
Jun189
Jul177
Aug209
Sep2211
Oct2514
Nov2716
Dec2919

Average hourly temperature in Santa Fe

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 C.

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

Santa Fe 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° / 20°1128.713.85.0
Feb29° / 20°1188.713.25.6
Mar28° / 18°1388.212.26.7
Apr24° / 15°1148.611.27.3
May20° / 12°746.110.47.0
Jun18° / 445.1106.4
Jul17° / 374.510.16.3
Aug20° / 484.910.87.3
Sep22° / 11°655.811.87.5
Oct25° / 14°1329.612.87.1
Nov27° / 16°1167.913.66.9
Dec29° / 19°1358.9145.6

Chance of rain

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

Santa Fe gets about 1132 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 7.1 months, from around Sep 29 to May 3, peaking in February at about 31% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 21.

March is the wettest month by volume, with 138 mm over about 8 wet days; July is the driest, with 37 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetFeb 23 · 31%Jul 21 · 13%
Rain on a day (%)Rain days
Jan289
Feb319
Mar278
Apr279
May206
Jun175
Jul145
Aug165
Sep206
Oct2910
Nov278
Dec299

Monthly rainfall

Over a full year, Santa Fe collects about 1132 mm of rain across 87 wet days — roughly 94 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 138 mm, while July is the driest at just 37 mm. The three wettest months alone bring about 36% of the year’s total.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec1121181381147444374865132116135
Rainfall (mm)Rain days
Jan1129
Feb1189
Mar1388
Apr1149
May746
Jun445
Jul375
Aug485
Sep656
Oct13210
Nov1168
Dec1359

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Santa Fe, 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 July 18 and lasts for 2.3 months, ending around September 26. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 66% of the time on average.

The cloudier part of the year begins around April 20 and lasts for 2.9 months, ending around July 17. The cloudiest month is May, when it is overcast or mostly cloudy 49% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 14 · 68%May 21 · 49%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6634
Feb6238
Mar6337
Apr6040
May5149
Jun5149
Jul5941
Aug6634
Sep6337
Oct5743
Nov6337
Dec6535

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 December 16, brings about 14 h 06 min of light; the shortest, around June 16, only 9 h 54 min — a swing of roughly 4 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.86:168:08
Feb13.26:437:52
Mar12.27:057:20
Apr11.27:266:40
May10.47:476:11
Jun10.08:056:02
Jul10.18:056:12
Aug10.87:426:32
Sep11.87:036:51
Oct12.86:247:12
Nov13.65:597:37
Dec14.05:578:01

Sunny days

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

Santa Fe averages about 14 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 17 days.

The sunnier stretch runs 2.6 months, from around Jul 13 to Sep 28. The sunniest month is August, with roughly 16 sunny days (bright).

The greyest month is May, down near 11 sunny days — about 31% fewer than the August peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightAug 1617 daysMay 2210 days
Sunny daysSky
Jan16Bright
Feb13Mixed
Mar15Mixed
Apr14Mixed
May12Mixed
Jun11Mixed
Jul14Mixed
Aug17Bright
Sep15Bright
Oct14Mixed
Nov14Mixed
Dec15Mixed

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

The more humid part of the year lasts 5.2 months, from around November 10 to April 16. The muggiest month is January, when the air feels humid, muggy or worse about 82% of the time.

The most comfortable stretch runs from around April 17 to November 9, and July is the most comfortable month — the air is dry or comfortable 95% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 20 · 97%Jan 26 · 16%oppressivemuggyhumiddrycomfortablehumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan5132534221
Feb5142337182
Mar11202828121
Apr3426231430
May612013600
Jun78129200
Jul84114000
Aug82115100
Sep76157200
Oct512517710
Nov3029251420
Dec13213026110

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 Fe is steady company: average speeds sit near 12 km/hcalm — in every month of the year, with no meaningful windy or calm season.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeSep 3 · 13 km/hFeb 26 · 10 km/h
Wind speed (km/h)Feels
Jan11calm
Feb11calm
Mar10calm
Apr11calm
May11calm
Jun11calm
Jul12calm
Aug12light breeze
Sep13light breeze
Oct13light breeze
Nov12light breeze
Dec11calm

Best time to visit Santa Fe

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late November, Santa Fe 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 times of year to visit Santa Fe for general outdoor tourist activities run from early March to late June and again from mid July to early December, with a peak score in the third week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationSep 19 · 7.7

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
Jan5.1fair
Feb5.6good
Mar6.7good
Apr7.3good
May7.0good
Jun6.4good
Jul6.4good
Aug7.2good
Sep7.5good
Oct7.2good
Nov6.9good
Dec5.6good

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 Fe for hot-weather activities is from mid October to late April, with a peak score in the first week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 5 · 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 Santa Fe, 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 17°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Santa Fe sees daytime highs around 31°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

UV index (midday) in Santa Fe 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 Fe peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 17UV 13Jun 21UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7High
Oct9Very high
Nov11Extreme
Dec13Extreme

Average hourly UV index in Santa Fe

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
Apr62.5
May40
Jun20
Jul2.50
Aug4.50
Sep62.5
Oct7.55
Nov8.56
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free day

Santa Fe is mild enough that a frost-free day stays more likely than not even in midwinter.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun970
Jul940
Aug970
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)

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 Fe banks about 3,280 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)
Jan476
Feb403
Mar391
Apr278
May183
Jun92
Jul67
Aug126
Sep190
Oct284
Nov354
Dec436

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 Fe receives about 4.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.4 and 7.2 kWh/m².

The brighter stretch of the year lasts 6.2 months, from around Sep 16 to Mar 22. The brightest month is January, averaging about 7.1 kWh/m² (intense).

The dimmest month is June, down near 2.5 kWh/m² — roughly 65% less than the January peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseJan 107.2 kWhJun 182.4 kWh
Solar energy (kWh/m²)Level
Jan7.2Intense
Feb6.2Intense
Mar5.2Bright
Apr3.8Moderate
May2.9Moderate
Jun2.5Moderate
Jul2.8Moderate
Aug3.8Moderate
Sep4.8Bright
Oct5.6Bright
Nov6.9Intense
Dec7.2Intense

Where is Santa Fe?

Santa Fe sits at 31.6°S, 60.7°W, 21 m above sea level, in Argentina. The nearest listed city is Santo Tomé, 6.0 km away.

Topography around Santa Fe

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

Within 3 km, the terrain around Santa Fe has only modest variations in elevation — a maximum elevation change of 21 m around an average of 17 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 51 m; within 80 km, only modest variations in elevation — a maximum elevation change of 116 m.

The land around Santa Fe is covered by artificial surfaces (58%) within 3 km, grassland (29%) and cropland (20%) within 16 km, and cropland (58%) and grassland (22%) within 80 km.

3 km
21 m
16 km
51 m
80 km
116 m
treesgrasslandcroplandartificial surfaceswaterwetland
Nearby: Santo Tomé 6.0 km · Paraná 19 km · Esperanza 31 km · Coronda 41 km · Diamante 47 km · Crespo 57 km · Gálvez 64 km · Rafaela 86 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Fe (-31.6488°, -60.7087°, elevation 21 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).