Best Time to Visit Buenos Aires: Weather Month by Month

Q: What is the best time to visit Buenos Aires?

January is the best month with 28.0°C highs, 21.0°C lows, 8.8h of sunshine and 19.0% rainy days. The months of January & February offer comparable conditions.

Q: How many hours of sunshine does Buenos Aires get in January?

Buenos Aires averages 8.8 sunshine hours per day in January. It is the sunniest month with a climate score of 8.5/10.

Q: What is the rainiest month in Buenos Aires?

June is the most unfavourable month with June has the lowest climate score of the year and the lowest climate score of the year.

Q: What are the temperatures at night in Buenos Aires in January?

In January, overnight lows reach 21.0°C, while afternoon highs average 28.0°C.

Q: Is Buenos Aires good in winter?

In winter (December-February), Buenos Aires scores 8.4/10 on average — Decent period conditions for cultural visits.. The best month overall remains January with a score of 8.5/10.

Q: When should you avoid Buenos Aires?

June is the most difficult month to visit Buenos Aires, with June has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.

Decide

When to visit Buenos Aires?

The decision rests on several criteria. Climate score, tourist crowds and feasible activities.

Verdict: In Buenos Aires, January and February clearly stand out. July concentrates the least favourable conditions.

Top & avoid

🏆 January · 8.9 February · 8.8 December · 8.8 November · 8.4 ⚠️ July · 4.4

8.9

Jan

8.8

Feb

8.2

Mar

7.7

Apr

7.3

May

4.4

Jun

4.4

Jul

7.3

Aug

7.4

Sep

7.8

Oct

8.4

Nov

8.8

Dec

Best period · ≥ 7 Decent period · 4 – 7 Tough conditions · < 4

What you grasp in 5 seconds

Buenos Aires offers 10 comfortable months, without any month really to avoid. The gap stays moderate: 8.9 in January vs 4.4 in July.

What to check next

Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.

Next action

Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.

Compare the 12 months By your project

How we calculate the score

The score combines 4 weighted criteria using 10 years of real climate data (ERA5).

Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →

Understand

Compare all 12 months

Month-by-month details: temperature, rain, sunshine, score and verdict.

✅ 10 comfortable months (Jan · Feb · Mar · Apr · May · Aug · Sep · Oct · Nov · Dec)

Month	T° min	T° max	Rain %	mm/day	Sun	Score	Verdict
☀️ January →	21°C	28°C	19%	2.4mm	8.8h	8.9/10	Best period
☀️ February →	21°C	28°C	19%	3.0mm	7.9h	8.8/10	Best period
☀️ March →	19°C	25°C	23%	4.5mm	7.0h	8.2/10	Best period
☀️ April →	16°C	21°C	22%	3.8mm	5.6h	7.7/10	Best period
⛅ May →	11°C	17°C	18%	2.9mm	5.1h	7.3/10	Best period
🌥️ June →	8°C	14°C	16%	1.6mm	4.5h	4.4/10	Decent period
🌥️ July →	8°C	14°C	18%	2.3mm	4.6h	4.4/10	Decent period
⛅ August →	9°C	16°C	15%	2.0mm	5.5h	7.3/10	Best period
⛅ September →	11°C	18°C	16%	2.4mm	6.0h	7.4/10	Best period
☀️ October →	13°C	21°C	20%	2.9mm	6.6h	7.8/10	Best period
☀️ November →	17°C	24°C	21%	2.8mm	8.2h	8.4/10	Best period
☀️ December →	19°C	27°C	19%	2.7mm	8.6h	8.8/10	Best period

Rain %19%

Best period

Rain %19%

Best period

Rain %23%

Best period

Rain %22%

Best period

Rain %18%

Best period

T°8°C / 14°C

Rain %16%

Sun4.5h

Decent period

🌥️ July

4.4/10

T°8°C / 14°C

Rain %18%

Sun4.6h

Decent period

⛅ August

7.3/10

T°9°C / 16°C

Rain %15%

Best period

Rain %16%

Best period

Rain %20%

Best period

Rain %21%

Best period

Rain %19%

Best period

📊 Quick read

Optimal window

Jan → May

Good transition

Jun · Jul

Tough period

none

🌡️ Detailed conditions (January)

🌡️ Feel

Warm

☀️ UV

8.8 · Very strong

💧 Humidity feel

18°C · Pleasant

☔ Rain

19% · 2.4 mm/day

🌅 Sunshine

8.8h/day

Week by week

Buenos Aires week by week: your odds of avoiding rain

For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.

Safest week: Jan 22 to Jan 28, mostly dry in 10 years out of 10 (0.7 rainy day(s) on average).

Most exposed: Oct 29 to Nov 4, mostly dry in 5 years out of 10 (2.1 rainy days on average).

Number = years out of 10 with at most 2 rainy days in the week. Source: ERA5 reanalysis (ECMWF) via Open-Meteo, daily data 2016-2025. Rainy day = at least 1 mm, as everywhere on the site.
Jan	Jan 18/1028°C	Jan 89/1029°C	Jan 158/1028°C	Jan 2210/1029°C	Jan 299/1028°C
Feb	Feb 58/1028°C	Feb 128/1027°C	Feb 1910/1028°C	Feb 268/1028°C
Mar	Mar 59/1026°C	Mar 126/1025°C	Mar 197/1023°C	Mar 2610/1024°C
Apr	Apr 28/1022°C	Apr 97/1021°C	Apr 169/1021°C	Apr 237/1020°C	Apr 307/1019°C
May	May 78/1018°C	May 149/1017°C	May 218/1016°C	May 288/1015°C
Jun	Jun 49/1015°C	Jun 119/1015°C	Jun 187/1014°C	Jun 258/1013°C
Jul	Jul 28/1013°C	Jul 98/1014°C	Jul 1610/1014°C	Jul 238/1014°C	Jul 3010/1016°C
Aug	Aug 69/1015°C	Aug 138/1016°C	Aug 209/1016°C	Aug 279/1016°C
Sep	Sep 38/1016°C	Sep 109/1018°C	Sep 178/1019°C	Sep 2410/1020°C
Oct	Oct 19/1020°C	Oct 88/1021°C	Oct 157/1021°C	Oct 229/1022°C	Oct 295/1022°C
Nov	Nov 510/1024°C	Nov 129/1025°C	Nov 1910/1026°C	Nov 269/1026°C
Dec	Dec 310/1026°C	Dec 109/1028°C	Dec 177/1027°C	Dec 249/1029°C

A specific date? The app computes the same figure day by day.

10-year trend

Annual temperatures — Buenos Aires

Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.

Tailor

For your trip

A few angles depending on what kind of trip you are planning.

🏖️ Beaches: Jun-Sept🌊 Swell: Sept-Mar🚤 Water activities

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🏨

Stay

Hotels & rentals · Buenos Aires

Expedia →

🎟️

Activities

Tours, tickets, experiences

See ↓

✈️

Flights

Multi-airline comparator

Kiwi →

🎟️ Activities & tours · Buenos Aires

GetYourGuide selection · free cancellation

See all →

Affiliate link · GetYourGuide

Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.

Country · Argentina

🗣️LanguageSpanish

💶CurrencyArgentine Peso ($)

🚗DrivingRight-hand

🛡️Safety ⓘVery safe · 1/5

💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTemperate oceanic

📈Climate trend ⓘStable

🔥Hottest monthJanuary · 28°C

❄️Coolest monthJune · 14°C

🌧️Rainiest month ⓘMarch · 23%

🏖️ Beach holiday

📅Peak seasonJuin → Sept

🏖️Swell (Sept–Mar) ⓘModérée

Explore

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Guides & rankings

World ranking 2026See →

Best summer destinationsSee →

Winter sunSee →

Where to go in JulySee →

🗺️ Climate map of 754 destinations

Location

Where is Buenos Aires ?

Global position + regional geographic context.

🌍 World

🔍 Geographic context

Temperate oceanic climate with a 8.9 → 4.4 gap between best and worst month. 10 years of ERA5 data to choose by project.

34.61°S · 58.38°W

Questions

Frequently asked questions

What is the best time to visit Buenos Aires?

January is the best month with 28.0°C highs, 21.0°C lows, 8.8h of sunshine and 19.0% rainy days. The months of January & February offer comparable conditions.

How many hours of sunshine does Buenos Aires get in January?

Buenos Aires averages 8.8 sunshine hours per day in January. It is the sunniest month with a climate score of 8.5/10.

What is the rainiest month in Buenos Aires?

June is the most unfavourable month with June has the lowest climate score of the year and the lowest climate score of the year.

What are the temperatures at night in Buenos Aires in January?

In January, overnight lows reach 21.0°C, while afternoon highs average 28.0°C.

Is Buenos Aires good in winter?

In winter (December-February), Buenos Aires scores 8.4/10 on average — Decent period conditions for cultural visits.. The best month overall remains January with a score of 8.5/10.

When should you avoid Buenos Aires?

June is the most difficult month to visit Buenos Aires, with June has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.