Buenos Aires Weather in July
Argentina · Humid Subtropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
July in Buenos Aires sees average temperatures ranging from a low of 7.1°C (44.8°F) to a high of 14.0°C (57.2°F), with a mean of 10.4°C (50.7°F). Compared to the annual average of 17.6°C (63.7°F), this month is 7.2°C cooler than the yearly norm. This is the coldest month of the year, with average lows of 7.1°C (44.8°F). Precipitation averages 43.2mm, making it approximately 31.0mm drier than the monthly average of 74.0mm. The city receives an average of 7.9 hours of sunshine per day during July, with relative humidity averaging 78.8%. Wind speeds reach an average maximum of 21.8 km/h. For travelers, this month offers a coldest month of the year experience in Buenos Aires, with drier-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in Buenos Aires, the seasons are flipped but mild. I ran the Costanera Sur in January (summer): 30°C with 70% humidity, draining but the river breeze helped. March-April is the outdoor sweet spot: 22°C, manageable UV, empty paths. October-November is similarly ideal — jacarandas blooming, 20°C, perfect cycling weather. July (winter) brings 12°C and dampness; running is fine but mornings feel raw. UV peaks dangerously in January (11+); sun protection is mandatory between 10am-4pm. The wind off the Río de la Plata is constant and can be bracing in winter.
July vs Adjacent Months
| Metric | June | July | August |
|---|---|---|---|
| Mean Temp | 11.5°C (52.7°F) | 10.4°C (50.7°F) | 12.0°C (53.6°F) |
| Rainfall | 35.7mm | 43.2mm | 59.0mm |
| Sunshine | 7.5 hrs | 7.9 hrs | 8.3 hrs |
| Humidity | 80.0% | 78.8% | 75.3% |
| Wind | 20.7 km/h | 21.8 km/h | 22.8 km/h |
| Rainy Days | 10.8 | 8.6 | 9.2 |
Seasonal Context
July falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Buenos Aires in July, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Buenos Aires in July?
The average temperature in Buenos Aires during July ranges from 7.1°C (44.8°F) to 14.0°C (57.2°F), with a mean of 10.4°C (50.7°F).
How much does it rain in Buenos Aires in July?
Buenos Aires receives an average of 43.2mm of precipitation in July, spread across approximately 8.6 rainy days.
What should I pack for Buenos Aires in July?
Based on July weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is July a good time to visit Buenos Aires?
July is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Buenos Aires
Cities with Similar July Climate (Humid Subtropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: -34.61°, -58.38°. Timezone: America/Argentina/Buenos_Aires. Last updated: 2026-07-30.