Climate averages 1991–2020

Avellaneda 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.

Average high 13.5°C Daytime mean, July
Average low 7.1°C Night-time mean, July
Rainfall 67 mm 7 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Avellaneda · average highYear overview

July is a cool month in Avellaneda: daytime highs average 13.5°C and nights cool to about 7.1°C. By daytime temperature it is the coolest month of the year.

Expect about 67 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 Buenos Aires (5 km away). In July its highs average 13.3°C, about as warm as Avellaneda, with 74 mm of rain.

Among the 67 cities listed in Argentina, Avellaneda ranks 47th of 67 for the warmest July highs and joint 57th of 67 for the driest July (rainfall, lowest first). The mean July high of those 67 cities is 14.6°C; Avellaneda is 1.1°C cooler than that mean.

From July to August, average highs rise by 2.3°C to 15.7°C, and monthly rainfall falls from 67 mm to 66 mm.

The annual picture

July in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 51015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Avellaneda climate table

1991–2020
Monthly climate averages for Avellaneda, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 27.9°C20.2°C20.2°C837.114.214 h
February 26.7°C19.5°C19.5°C927.813.413 h
March 24.7°C17.9°C17.9°C887.212.312 h
April 21.1°C14.3°C14.3°C947.911.211 h
May 17.3°C11.2°C11.2°C636.010.310 h
June 14.4°C8.2°C8.2°C676.49.910 h
July, selected 13.5°C7.1°C7.1°C676.810.110 h
August 15.7°C8.5°C8.5°C666.410.811 h
September 17.5°C10.1°C10.1°C747.111.812 h
October 20.4°C13.0°C13.0°C1099.312.913 h
November 23.7°C15.8°C15.8°C948.113.914 h
December 26.7°C18.5°C18.5°C818.014.414 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

Distance from Avellaneda

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Avellaneda) is explained once on the Avellaneda year overview and on the Sources, method and limits page.

Quilmes and Berazategui lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.