Annual mean 25°C · wettest around March · prevailing wind SE
Warmest
29.3 °C
Coldest
25.1 °C
Wettest
67%
Windiest
4.4 m/s
Prevailing
SE
3.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Buenos Aires over the whole year is 25°C. November is the hottest month, with highs of about 29°C; August is the coldest, with lows of about 20°C. Buenos Aires has no sharply defined rainy season: the chance of rain on a given day runs from 26% in October, the driest month, to 50% in March, the wettest. Winds in Buenos Aires are highest in November, averaging 3.3 m/s (12 km/h), and lightest in April, at 2.2 m/s (8 km/h). The prevailing wind is from the SE. The clearest skies in Buenos Aires come in April, when the sky is typically 57% covered; June is the cloudiest month, at 67%.
Month by month Buenos Aires climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
29°C
23°C
30°C
43%
62%
2.9 m/s
20
71
1
February
29°C
24°C
31°C
38%
60%
2.8 m/s
15
66
2
March
29°C
23°C
31°C
50%
62%
2.4 m/s
14
65
2
April
28°C
23°C
31°C
49%
57%
2.2 m/s
17
65
2
May
27°C
22°C
30°C
48%
63%
2.2 m/s
26
70
4
June
26°C
21°C
28°C
46%
67%
2.9 m/s
45
66
12
July
25°C
21°C
26°C
48%
65%
2.7 m/s
56
61
19
August
26°C
20°C
27°C
41%
62%
2.9 m/s
57
62
19
September
27°C
21°C
27°C
26%
63%
3.0 m/s
50
70
11
October
28°C
22°C
29°C
26%
58%
3.1 m/s
35
74
5
November
29°C
23°C
30°C
26%
59%
3.3 m/s
20
76
2
December
29°C
23°C
30°C
47%
58%
3.1 m/s
21
73
2
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Buenos Aires weather by season
Year round, Buenos Aires has days of about 25°C at their warmest in July, its coolest month, and 29°C in November, its warmest; the coolest hours of the day run from 20°C to 24°C through the year, and the average temperature over the year is 25°C around the clock. Rain is most likely around March and least likely around October. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Buenos Aires weather in winterJune to August
High 26°CLow 21°CRain 45%
Winter in Buenos Aires has typical daily highs of about 26°C and lows of about 21°C, with a 45% chance of rain on a given day.
Buenos Aires weather in springSeptember to November
High 28°CLow 22°CRain 26%
Spring in Buenos Aires has typical daily highs of about 28°C and lows of about 22°C, with a 26% chance of rain on a given day.
Buenos Aires weather in summerDecember to February
High 29°CLow 23°CRain 42%
Summer in Buenos Aires has typical daily highs of about 29°C and lows of about 23°C, with a 42% chance of rain on a given day.
Buenos Aires weather in autumnMarch to May
High 28°CLow 23°CRain 49%
Autumn in Buenos Aires has typical daily highs of about 28°C and lows of about 23°C, with a 49% chance of rain on a given day.
When is the rainy season in Buenos Aires?
Buenos Aires has no sharply defined rainy season: the chance of rain on a given day runs from 26% in October, the driest month, to 50% in March, the wettest.
What time of year is Buenos Aires windiest?
Winds in Buenos Aires are highest in November, averaging 3.3 m/s (12 km/h), and lightest in April, at 2.2 m/s (8 km/h). The prevailing wind is from the SE.
What is the average temperature in Buenos Aires year round?
The average temperature in Buenos Aires over the whole year is 25°C. November is the hottest month, with highs of about 29°C; August is the coldest, with lows of about 20°C.