Buenos Aires, Argentina Average Monthly Weather

August17°C average high

August has some of the coolest average daytime highs of the year, so pack for fresher conditions.

Warmest monthsJanuary to March and December

This stretch sets the upper range for average daytime heat.

August67mm average rain

August is one of Buenos Aires' driest months, making outdoor days easier to plan than in wetter parts of the year.

Driest monthsMay to September and December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

August5.5 hours average sun

August is below Buenos Aires' yearly sunshine average, so bright-day planning is less reliable than in peak months.

Brightest monthsJanuary to February and November to December

This stretch has the strongest sunshine in the monthly averages.

August14°C average sea

August is one of the coolest sea months, so the water may feel fresher than in peak months.

Warmest seaJanuary to March and December

Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.

August34 weather score

August is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJanuary to March and December

These months have the strongest weather score in the monthly averages.