Climate and average weather in Rivadavia

In Rivadavia, the summers are hot, showery, and mostly clear and the winters are cool and mostly clear.

Best: mid August to mid November

Over the course of the year, the temperature in Rivadavia typically varies from 3°C to 31°C, and is rarely below -2°C or above 37°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 Rivadavia for warm-weather activities are from early March to mid May and mid August to mid November.

Hottest
Jan
31°
Coldest
Jul
Wettest
Jan
102 mm
Driest
Jul
10 mm
Rain / yr
567 mm
84 wet days
Daylight
9.8–14.2 h
shortest–longest
Elevation
653 m
33.2°S
Clearest
Aug
31% cloud

Rivadavia 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 August to mid November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.2 months, from November 4 to March 11, with daily high temperatures above 27°C. The hottest month of the year in Rivadavia is January, with an average high of 31°C and low of 19°C.

The cool season lasts 3.1 months, from May 16 to August 16, with daily high temperatures below 17°C. The coldest month of the year in Rivadavia is July, with an average low of 3°C and high of 14°C.

Days typically run about 12°C warmer than nights, with the widest day–night swing (around 13°C) in November.

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3119
Feb2917
Mar2615
Apr2211
May177
Jun144
Jul143
Aug175
Sep218
Oct2512
Nov2815
Dec3017

How hot and cold Rivadavia 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 coldest nights, wind chill pulls the feels-like down to about -0°C (around July 19), with roughly 24 freezing days a year (feels-like at or below 0°C), worst in July.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan31311819
Feb29291717
Mar26261515
Apr22221011
May171757
Jun141414
Jul141403
Aug171725
Sep212168
Oct25251212
Nov28281515
Dec30301717

Average hourly temperature in Rivadavia

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

Rivadavia weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan31° / 19°10213013.94.6
Feb29° / 17°8110.8013.25.6
Mar26° / 15°799.8012.37.0
Apr22° / 11°416.7011.27.4
May17° / 234.5010.36.4
Jun14° / 112.40.19.85.2
Jul14° / 102.60.5105.2
Aug17° / 173.20.410.86.8
Sep21° / 2040.111.87.8
Oct25° / 12°406.6012.87.8
Nov28° / 15°618.9013.76.5
Dec30° / 17°8411.2014.25.0

Chance of rain

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

Rivadavia gets about 567 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 5.5 months, from around Oct 28 to Apr 12, peaking in January at about 44% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 27.

January is the wettest month by volume, with 102 mm over about 13 wet days; July is the driest, with 10 mm.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 7 · 44%Jun 27 · 7%
Rain on a day (%)Rain days
Jan4113
Feb3911
Mar3210
Apr227
May145
Jun92
Jul93
Aug103
Sep134
Oct217
Nov309
Dec3711

Monthly rainfall

Over a full year, Rivadavia collects about 567 mm of rain across 84 wet days — roughly 47 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 102 mm, while July is the driest at just 10 mm. The three wettest months alone bring about 47% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec1028179412311101720406184
Rainfall (mm)Rain daysSnow days
Jan102130
Feb81110
Mar79100
Apr4170
May2350
Jun1120
Jul1031
Aug1730
Sep2040
Oct4070
Nov6190
Dec84110

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Rivadavia, 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 October 19 and lasts for 4.6 months, ending around March 8. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 81% of the time on average.

The cloudier part of the year begins around March 9 and lasts for 4.1 months, ending around July 11. The cloudiest month is May, when it is overcast or mostly cloudy 39% 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%JanFebMarAprMayJunJulAugSepOctNovDecDec 23 · 83%May 19 · 58%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan8119
Feb7921
Mar7327
Apr6931
May6139
Jun6931
Jul7624
Aug7921
Sep7525
Oct7426
Nov7921
Dec8119

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 14 h 12 min of light; the shortest, around June 12, only 9 h 48 min — a swing of roughly 4 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.96:448:42
Feb13.27:128:25
Mar12.37:367:51
Apr11.27:597:09
May10.38:216:39
Jun9.88:406:29
Jul10.08:396:40
Aug10.88:157:01
Sep11.87:347:22
Oct12.86:547:44
Nov13.76:278:11
Dec14.26:258:36

Sunny days

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

Rivadavia averages about 18 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 13 and 21 days.

The sunnier stretch runs 5.8 months, from around Jul 9 to Jan 1. The sunniest month is August, with roughly 20 sunny days (bright).

The greyest month is May, down near 14 sunny days — about 30% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergloomymixedbrightbrilliantAug 1321 daysMay 1813 days
Sunny daysSky
Jan18Bright
Feb16Bright
Mar18Bright
Apr16Bright
May15Mixed
Jun17Bright
Jul19Bright
Aug21Bright
Sep19Bright
Oct19Bright
Nov19Bright
Dec20Bright

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 Rivadavia, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 3.5 months, from around December 12 to March 27. The muggiest month is January, when the air feels humid, muggy or worse about 24% of the time.

The most comfortable stretch runs from around March 28 to December 11, and April is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 30 · 100%Jan 26 · 74%humidcomfortabledryhumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan4927204
Feb4335193
Mar5629132
Apr881110
May99100
Jun100000
Jul100000
Aug100000
Sep100000
Oct97300
Nov90910
Dec702181

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 Rivadavia is typically calm, near 11 km/h, and varies little with the seasons.

The windier part of the year lasts 6.1 months, from around Aug 22 to Feb 24. The windiest month is October, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Feb 25 to Aug 21, with June the calmest month at about 9 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeOct 24 · 13 km/hJun 1 · 9 km/h
Wind speed (km/h)Feels
Jan11calm
Feb11calm
Mar10calm
Apr10calm
May9calm
Jun9calm
Jul9calm
Aug10calm
Sep12calm
Oct13light breeze
Nov13light breeze
Dec12calm

Hazard calendar for Rivadavia

In seasonPeak

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

Rivadavia'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 Rivadavia

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid August, Rivadavia is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Rivadavia for general outdoor tourist activities run from early March to mid May and again from mid August to mid November, with a peak score in the second week of October.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationOct 10 · 8.0

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
Feb5.6good
Mar7.0good
Apr7.4good
May6.4good
Jun5.2fair
Jul5.2fair
Aug6.8good
Sep7.8ideal
Oct7.8ideal
Nov6.5good
Dec5.0fair

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 Rivadavia for hot-weather activities is from early October to early April, with a peak score in the third week of November.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationNov 19 · 7.4

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 Rivadavia, 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 14°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Rivadavia sees daytime highs around 31°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

UV index (midday) in Rivadavia 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 Rivadavia peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 18UV 14Jun 19UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Very high
Nov12Extreme
Dec13Extreme

Average hourly UV index in Rivadavia

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 9.5 hours a day reach index 3 (protection recommended), and 7.5 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)
Jan9.57.5
Feb8.56.5
Mar7.55.5
Apr5.50
May3.50
Jun00
Jul20
Aug40
Sep62
Oct85.5
Nov8.56.5
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayReliably frost-free (≥90%)

Rivadavia is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about August 13 to June 13 (305 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freereliably frost-freeAug 1390%Jun 1390%
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May980
Jun8918
Jul7931
Aug9114
Sep990
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. Rivadavia banks about 2,591 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

01,0002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan452
Feb367
Mar327
Apr185
May64
Jun0
Jul0
Aug33
Sep134
Oct258
Nov344
Dec429

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.

Rivadavia receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.8 and 7.9 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Sep 14 to Mar 13. The brightest month is December, averaging about 7.9 kWh/m² (intense).

The dimmest month is June, down near 2.8 kWh/m² — roughly 64% less than the December peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 187.9 kWhJun 162.8 kWh
Solar energy (kWh/m²)Level
Jan7.5Intense
Feb6.6Intense
Mar5.3Bright
Apr4.0Bright
May3.0Moderate
Jun2.8Moderate
Jul3.2Moderate
Aug4.2Bright
Sep5.4Bright
Oct6.6Intense
Nov7.6Intense
Dec7.9Intense

Where is Rivadavia?

Rivadavia sits at 33.2°S, 68.5°W, 653 m above sea level, in Argentina. The nearest listed city is San Martín, 12 km away.

Topography around Rivadavia

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

Within 3 km, the terrain around Rivadavia has only modest variations in elevation — a maximum elevation change of 21 m around an average of 659 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 205 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,923 m.

The land around Rivadavia is covered by grassland (39%), artificial surfaces (22%) and cropland (21%) within 3 km, grassland (31%), shrubs (30%) and cropland (29%) within 16 km, and shrubs (71%) within 80 km.

3 km
21 m
16 km
205 m
80 km
2,923 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
Nearby: San Martín 12 km · Rodeo del Medio 30 km · Perdriel 42 km · Mendoza 49 km · Tupungato 67 km · Tunuyán 67 km · San Rafael 159 km · Pocito 168 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 Rivadavia (-33.191°, -68.4622°, elevation 653 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).