Buenos Aires weather in January
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Buenos Aires January weather at a glance
In January, Buenos Aires averages 25°C, with typical highs of 29°C and lows of 21.4°C. The historical average is 7 wet days and 64% humidity.
Buenos Aires January temperature & humidity
Buenos Aires January rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Buenos Aires in January
Choose breathable summer clothes and pack sun protection.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 29°C
- Morning & eveningLight layer for air-conditioned rooms · average low 21.4°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Buenos Aires January sunrise & sunset times
2026 January · Local time (America/Argentina/Buenos_Aires)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-01-01 | 05:44 | 20:10 | 14h 25m |
| 2026-01-15 | 05:57 | 20:09 | 14h 12m |
| 2026-01-31 | 06:13 | 20:01 | 13h 48m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Forecast · Windy. Monthly averages are in the Temperature section.
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Best months to visit Buenos Aires
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
January weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Buenos Aires weather like in January?
In January, Buenos Aires averages 25°C, with typical highs of 29°C and lows of 21.4°C. The historical average is 7 wet days and 64% humidity. Our weather-comfort rating for this month is good.
Does it rain a lot in Buenos Aires in January?
There are about 7 wet days in January. A compact umbrella is still useful.
What should I wear in Buenos Aires in January?
Choose breathable summer clothes and pack sun protection.
What are the best months to visit Buenos Aires?
Recent weather data rates January, February, March, April among the more comfortable months.
Where can I check Buenos Aires weather in January in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Buenos Aires in January?
On 2026-01-15, calculated sunrise is 05:57 and sunset is 20:09 in local time (America/Argentina/Buenos_Aires). Times vary by date and terrain.
Buenos Aires weather by month
More Americas destinations in January
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations