Climate averages 1991–2020
Buenos Aires weather
in July.
A cool, moderately wet month: the coolest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a cool month in Buenos Aires: daytime highs average 13.3°C and nights cool to about 7.5°C. By daytime temperature it is the coolest month of the year.
Expect about 74 mm of rain on roughly 7 days, which makes July a moderately wet month (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 04 min on an average July day.
The nearest other city in this atlas is Avellaneda (5 km away). In July its highs average 13.5°C, about as warm as Buenos Aires, with 67 mm of rain.
Among the 67 cities listed in Argentina, Buenos Aires ranks joint 49th of 67 for the warmest July highs and 61st of 67 for the driest July (rainfall, lowest first). The mean July high of those 67 cities is 14.6°C; Buenos Aires is 1.3°C cooler than that mean.
From July to August, average highs rise by 2.2°C to 15.5°C, and monthly rainfall falls from 74 mm to 71 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Buenos Aires climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.6°C20.3°C | 20.3°C | 83 | 6.9 | 14.214 h |
| February | 26.4°C19.7°C | 19.7°C | 99 | 8.1 | 13.413 h |
| March | 24.5°C18.1°C | 18.1°C | 96 | 7.6 | 12.312 h |
| April | 20.9°C14.6°C | 14.6°C | 102 | 8.1 | 11.211 h |
| May | 17.2°C11.5°C | 11.5°C | 72 | 6.8 | 10.310 h |
| June | 14.3°C8.6°C | 8.6°C | 74 | 7.7 | 9.910 h |
| July, selected | 13.3°C7.5°C | 7.5°C | 74 | 7.1 | 10.110 h |
| August | 15.5°C8.8°C | 8.8°C | 71 | 6.6 | 10.811 h |
| September | 17.3°C10.4°C | 10.4°C | 80 | 7.1 | 11.812 h |
| October | 20.2°C13.3°C | 13.3°C | 119 | 9.8 | 12.913 h |
| November | 23.4°C15.9°C | 15.9°C | 95 | 8.2 | 13.914 h |
| December | 26.3°C18.6°C | 18.6°C | 87 | 8.1 | 14.414 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Avellaneda in JulyArgentina · 5 kmHigh 13.5°C · Low 7.1°C · 67 mm rain
- Lomas de Zamora in JulyArgentina · 16 kmHigh 13.6°C · Low 6.6°C · 60 mm rain
- Quilmes in JulyArgentina · 16 kmHigh 13.4°C · Low 6.9°C · 67 mm rain
- Isidro Casanova in JulyArgentina · 22 kmHigh 13.9°C · Low 6.2°C · 60 mm rain
- Berazategui in JulyArgentina · 23 kmHigh 13.2°C · Low 7.4°C · 67 mm rain
- Laferrere in JulyArgentina · 24 kmHigh 14.0°C · Low 6.1°C · 60 mm rain
- Don Torcuato in JulyArgentina · 26 kmHigh 13.9°C · Low 6.8°C · 60 mm rain
- Bella Vista in JulyArgentina · 29 kmHigh 14.1°C · Low 6.2°C · 60 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Buenos Aires) is explained once on the Buenos Aires year overview and on the Sources, method and limits page.