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City comparison

Buenos Aires vs Arequipa

In short

Calculated from the figures below, with no overall “who wins” score.

  • Rent

    in Buenos Aires cheaper — −12%

  • Family groceries

    in Arequipa cheaper — −61%

  • Internet

    in Buenos Aires cheaper — −40%

In numbers

Exchange rate as of the date each figure was checked.

  • House or apartment rent

    per month
    Buenos Aires≈ $752–899ARS 1,176,184–1,406,326
    cheaper by 12%
    Arequipa≈ $585–1,290S/ 2,000–4,420
  • Family groceries

    per month
    Buenos Aires≈ $630ARS 985,617
    Arequipa≈ $243S/ 830
    cheaper by 61%
  • Internet

    per month
    Buenos Aires≈ $8.95–23ARS 13,999–35,774
    cheaper by 40%
    Arequipa≈ $26S/ 89.9
  • Private school

    per month
    Buenos Aires≈ $28–190ARS 44,300–296,700
    cheaper by 71%
    Arequipa≈ $219–519S/ 750–1,775
  • Winter

    average
    Buenos Aires12 °C12 °C
    Arequipa6–21 °C6–21 °C
  • Precipitation

    per year
    Buenos Aires1,260 mm1,260 mm
    Arequipa94.6 mm94.6 mm
  • Ready-made house

    purchase
    Buenos Aires$151–200k$151–200k
    cheaper by 46%
    Arequipa$157–490k$157–490k

By topic

A quick look at each city. Details and sources are on the city page.

Housing

Buenos Aires

Expensas

A building maintenance fee: on average 337k pesos a month, on top of rent. For a three-room flat in Palermo, about 300k.

SpecialistLa Nacion: expensas in Buenos Aires, ConsorcioAbierto data on ~13,000 buildings · checked 28 Sep 2026

Rent for a three-room flat by barrio

A flat with two bedrooms: Caballito 1.18 million pesos a month, Palermo 1.31 million, Núñez 1.41 million. Expensas on top.

OfficialIDECBA - Dynamics of the apartment rental market, Buenos Aires, Q2 2026 (Informe de resultados 2049) · checked 28 Sep 2026

Studio and one-bedroom

A studio (monoambiente, about 30 m²) averages 565,658 pesos a month; a one-bedroom of 43 m² averages 764,485 pesos. Small flats vary little between barrios.

OfficialIDECBA - Dynamics of the apartment rental market, Buenos Aires, Q2 2026 (Informe de resultados 2049) · checked 28 Sep 2026

What is actually available for rent

Three quarters of listings are homes with one bedroom at most. A family with two children can use about a quarter of the market.

OfficialIDECBA - Dynamics of the apartment rental market, Buenos Aires, Q2 2026 (Informe de resultados 2049) · checked 28 Sep 2026

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Arequipa

Rent: Yanahuara and Cayma

A three-bedroom apartment in Yanahuara or Cayma is 2000–4400 soles a month, most often 2500–3000 (about 700–900 dollars). Building maintenance fees on top.

SpecialistUrbania: apartments for rent in Yanahuara · checked 29 Sep 2026

Buying an apartment in Cayma

A three-bedroom apartment in Cayma by listings: 157–490k dollars, median about 225k. Sellers quote prices in dollars.

SpecialistUrbania: apartments for sale in Cayma · checked 29 Sep 2026

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Money and prices

Buenos Aires

Budget for a family of four

The city's basket for a family with two children is 2.08 million pesos a month, but without rent. With the rent of a three-room flat it comes to 3.3–3.5 million.

OfficialIDECBA - Poverty lines and consumer baskets of the City of Buenos Aires, August 2026 (Informe de resultados 2054) · checked 28 Sep 2026

Food for a family

The food basket for a family of four is 985,617 pesos a month at city prices (August 2026). Up 34.7% over the year.

OfficialIDECBA - Poverty lines and consumer baskets of the City of Buenos Aires, August 2026 (Informe de resultados 2054) · checked 28 Sep 2026

How much you need to earn

Middle class by the city's yardstick starts at 2.6 million pesos for a family of four, and that is with owned housing.

OfficialIDECBA - Poverty lines and consumer baskets of the City of Buenos Aires, August 2026 (Informe de resultados 2054) · checked 28 Sep 2026

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Arequipa

Family budget per month

The average resident of the region spends 876 soles a month, which for a family of four is about 3500. Rent alone for a three-bedroom apartment in Cayma is 2500–3000.

OfficialINEI: Arequipa, statistical compendium 2025 · checked 29 Sep 2026

Groceries for a family

A rough guide is about 830 soles a month for a family of four: food accounts for 23.7% of the urban price basket, and average spending per person is 876 soles.

OfficialINEI: Arequipa, statistical compendium 2025 · checked 29 Sep 2026

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Family and kids

Buenos Aires

Private schools

Fee ceilings in schools with state support: primary (half-day) 44–224k pesos a month, secondary 55–297k.

SpecialistiProfesional - new fee caps in CABA private schools from September 2026 · checked 28 Sep 2026

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Arequipa

Private schools: prices

The most expensive schools in the city charged 750–1775 soles a month in 2024. In 80% of private schools the fee is below 400 soles a month.

SpecialistEncuentro: 80% of private schools in Arequipa charge under 400 soles, table of monthly fees 2023-2024 from Identicole · checked 29 Sep 2026

Private and public

Almost every second pupil in Arequipa attends a private school: 47% across the two city education authorities, 54% in the northern one (2024 census).

OfficialINEI: Arequipa, statistical compendium 2025 · checked 29 Sep 2026

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Healthcare

Buenos Aires

Private health insurance

A mid-level plan costs 110–280k pesos a month per person; OSDE 210 cost 285k in September 2026. For a family, multiply.

SpecialistComparison of private health insurance (prepagas) prices, September 2026 · checked 28 Sep 2026

Hospitals and foreigners

With residency, city hospitals are free on equal terms with Argentines. Without a DNI, elective care is paid; emergency care is for everyone.

OfficialResolución 1054/MSGC/2025 - procedure for treating patients without an Argentine DNI in city hospitals · checked 28 Sep 2026

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Arequipa

Altitude and children

The city is at 2335 m, just below the CDC altitude sickness threshold (2450 m). For children the CDC sees no particular risk, and it advises caution with infants under 6 weeks.

OfficialCDC Yellow Book: high-altitude travel and altitude sickness · checked 29 Sep 2026

Hospitals in the city

The level III public hospital Honorio Delgado: paediatrics, neonatology, intensive care, neurosurgery, oncology. The social insurer EsSalud has 29 facilities in the region.

OfficialHospital Regional III Honorio Delgado: website and list of services · checked 29 Sep 2026

Everything about healthcare in Arequipa →

Transport

Buenos Aires

Metro and buses

The metro is 1,753 pesos per trip, a bus from 888. Fares drop from the 21st trip in a month. A family spends about 127k a month.

OfficialRed SUBE - AMBA public transport fares, in effect from 1 September 2026 · checked 28 Sep 2026

Everything about transport in Buenos Aires →

Arequipa

Airport and flights

The airport is 8 km from the centre and is open between 5 and 22 hours. The departures board on 29 September 2026 showed 22 departures: 20 to Lima and 2 to Cusco, with no international ones.

SpecialistAeropuertos Andinos del Perú: Arequipa airport and departures board · checked 29 Sep 2026

Everything about transport in Arequipa →

Climate

Buenos Aires

Winter

The average July temperature is 11.5 degrees: about 8 at night, about 16 by day. Snow comes once in several generations, but you need heating in winter.

SpecialistClimates to Travel - climate of Buenos Aires, 1991-2020 normals · checked 28 Sep 2026

Annual precipitation

About 1,260 mm a year and 77 rainy days – there is no dry season. It rains most in summer, winter is the driest. Downpours sometimes cause flooding.

SpecialistClimates to Travel - climate of Buenos Aires, 1991-2020 normals · checked 28 Sep 2026

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Arequipa

Winter climate

In winter it is about 5.5 degrees at night and 21–22 during the day. Daytime temperature is almost the same all year round, with a day-night difference of 13–16 degrees.

OfficialWMO, World Weather Information Service: climate normals of Arequipa · checked 29 Sep 2026

Precipitation and seasonality

About 95 mm a year, and almost all of it in January–March. From April to November, 0 to 2 mm a month falls.

OfficialWMO, World Weather Information Service: climate normals of Arequipa · checked 29 Sep 2026

Ultraviolet

Even in July, SENAMHI forecast an ultraviolet index of 8–12 for Arequipa, from “very high” to “extreme”. The weather service advises staying out of the sun from 9 to 16.

SpecialistInfobae: SENAMHI warns of extreme ultraviolet in the southern sierra, 4-6 July 2026 · checked 29 Sep 2026

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Safety

Buenos Aires

Intentional homicides

In 2025 there were 2.53 homicides per 100k residents – the lowest since 1995, below the national average (3.7).

OfficialBuenos Aires crime map, summary report for 2025 · checked 28 Sep 2026

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Arequipa

Misti volcano

IGP calls Misti the most dangerous volcano in Peru: more than a million people live on its slopes and around it. The last eruption was in the fifteenth century.

OfficialIGP: volcanic Arequipa, 5 facts about active volcanoes · checked 29 Sep 2026

Earthquakes

The 2001 earthquake of magnitude 8.2 caused shaking of intensity VIII on the Mercalli scale in Arequipa. According to IGP, about 30% of the energy off the southern coast has still not been released.

OfficialIGP: memories of the earthquake that will happen again (Arequipa, 2001) · checked 29 Sep 2026

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Internet and phone

Buenos Aires

Internet

Fibre at 300 Mbps costs about 14–22k pesos a month on promotion, 500 Mbps 22–36k. The main trap: after 6–12 months the list price kicks in, and it is three to four times higher.

SpecialistMovistar Argentina - 300 Mbps fiber plan · checked 28 Sep 2026

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Arequipa

Fibre-optic internet

Movistar sells home fibre at 400 Mbit/s for 89.90 soles a month, 79.90 for the first two months. Arequipa is on Movistar's list of fibre zones.

SpecialistMovistar Perú: “Solo internet” plans · checked 29 Sep 2026

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Services

Buenos Aires

Electricity, gas and water

Without subsidies, electricity, gas and water cost about 142k pesos a month in spring and up to 166k in winter. Expensas (the building fee) are not included in this amount.

SpecialistTN citing the Observatorio de Tarifas y Subsidios IIEP (UBA-CONICET) - AMBA utilities basket, September 2026 · checked 28 Sep 2026

Electricity (Edesur)

Edesur electricity without a subsidy: 157 pesos per kWh plus 3,632 a month (category 151–400 kWh). For 300 kWh about 50.8k pesos without IVA (33 dollars).

OfficialEdesur: cuadro tarifario, ENReGE resolution 535/26, in effect from 1 September 2026 · checked 30 Sep 2026

Mains gas (Metrogas)

Metrogas gas without a subsidy: 316 pesos per m³ plus a fixed charge of 4.4–53.8k a month, without taxes. 100 m³ in winter (category R2 2°) – about 47.6k pesos (31 dollars).

OfficialMetrogas: cuadros tarifarios, September 2026 (tariffs for homes without SEF subsidies, excluding taxes) · checked 30 Sep 2026

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Arequipa

Electricity at the SEAL tariff

For consumption above 140 kWh, electricity costs 0.66 soles per kWh plus 3.60 soles a month, without IGV tax. 200 kWh is about 136 soles before tax.

OfficialSEAL: tariff schedule No. 003-2026 for end users, from 4 February 2026 · checked 29 Sep 2026

Water and sewerage SEDAPAR

Water and sewerage: the first 10 m³ at 1.65 soles, then 2.96 and 6.00. A bill for 15 m³ is about 41 soles with tax; this is a calculation based on the SEDAPAR tariff.

OfficialSunass: resolution 00146-2025-SUNASS-CD, SEDAPAR tariff structure for year 5 of the 2021-2026 period · checked 30 Sep 2026

Gas: networks and cylinders

There is no piped gas concessionaire in Arequipa; the network is being built under the state Bonogas programme in five districts. The rest cook on cylinders, and we did not find their price.

OfficialMINEM: first stage of gas network construction in Arequipa, Moquegua and Tacna (Sur Oeste concession) · checked 30 Sep 2026

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