Buenos Aires Weather in January
What's the weather like in Buenos Aires (Rivas) in January 2025?
The climate in Buenos Aires during January can be summarized as hot, humid and dry.
January is in the winter in Buenos Aires and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (87°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 30.4°C 86.7°F |
|---|---|
| Nightly temperature | 21.2°C 70.2°F |
| Average temperature | 25.8°C 78.4°F |
| Daily sunshine | 7.9 hrs |
| Avg rainfall | 17 mm 0.7 ins |
| Rainy days | 7 days |
| Sea temperature | 27.1°C 80.8°F |
| Humidity | 74% |
| Windspeed | 16.2kph 10 mph |
On average January is the 4th driest month of the year in Buenos Aires with around 17mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.9 hours of sunshine per day.
January temperatures in Buenos Aires
January rainfall
January hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Buenos Aires in January 2024.
Other monthly averages
Best places to visit in January
Buenos Aires weather stats
| Hottest month: | May | 31.8°C 89.2°F |
|---|---|---|
| Driest month: | March | 4mm 0.2ins |
| Sunniest month: | February | 8.4hrs |
| Coldest month: | December | 29.7°C 85.5°F |
| Wettest month: | October | 309mm 12.2ins |
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