Annual mean 18°C · wettest around April · prevailing wind NE
Warmest
27.9 °C
Coldest
13.2 °C
Wettest
42%
Windiest
4.6 m/s
Prevailing
NE
4.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 18°C. January is the hottest month, with highs of about 28°C; July is the coldest, with lows of about 8°C. Buenos Aires has no sharply defined rainy season: the chance of rain on a given day runs from 20% in June, the driest month, to 39% in April, the wettest. Winds in Buenos Aires are highest in November, averaging 3.9 m/s (14 km/h), and lightest in June, at 2.7 m/s (10 km/h). The prevailing wind is from the NE. The clearest skies in Buenos Aires come in February, when the sky is typically 43% covered; July is the cloudiest month, at 58%.
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
28°C
22°C
27°C
28%
44%
3.7 m/s
48
60
17
February
27°C
21°C
27°C
33%
43%
3.3 m/s
47
53
21
March
25°C
19°C
24°C
33%
46%
3.2 m/s
62
39
37
April
21°C
15°C
20°C
39%
52%
3.0 m/s
77
15
66
May
17°C
12°C
15°C
30%
54%
2.8 m/s
49
2
79
June
14°C
9°C
11°C
20%
55%
2.7 m/s
26
1
75
July
14°C
8°C
10°C
26%
58%
3.0 m/s
18
0
70
August
15°C
9°C
12°C
29%
53%
3.1 m/s
28
2
74
September
18°C
12°C
15°C
27%
56%
3.6 m/s
48
2
79
October
20°C
14°C
18°C
28%
52%
3.7 m/s
64
11
71
November
24°C
18°C
22°C
29%
47%
3.9 m/s
72
30
50
December
26°C
20°C
25°C
31%
45%
3.7 m/s
63
44
36
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 14°C at their warmest in July, its coolest month, and 28°C in January, its warmest; the coolest hours of the day run from 8°C to 22°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around April and least likely around June. 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 14°CLow 9°CRain 25%
Winter in Buenos Aires has typical daily highs of about 14°C and lows of about 9°C, with a 25% chance of rain on a given day.
Buenos Aires weather in springSeptember to November
High 21°CLow 14°CRain 28%
Spring in Buenos Aires has typical daily highs of about 21°C and lows of about 14°C, with a 28% chance of rain on a given day.
Buenos Aires weather in summerDecember to February
High 27°CLow 21°CRain 31%
Summer in Buenos Aires has typical daily highs of about 27°C and lows of about 21°C, with a 31% chance of rain on a given day.
Buenos Aires weather in autumnMarch to May
High 21°CLow 15°CRain 34%
Autumn in Buenos Aires has typical daily highs of about 21°C and lows of about 15°C, with a 34% 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 20% in June, the driest month, to 39% in April, the wettest.
What time of year is Buenos Aires windiest?
Winds in Buenos Aires are highest in November, averaging 3.9 m/s (14 km/h), and lightest in June, at 2.7 m/s (10 km/h). The prevailing wind is from the NE.
What is the average temperature in Buenos Aires year round?
The average temperature in Buenos Aires over the whole year is 18°C. January is the hottest month, with highs of about 28°C; July is the coldest, with lows of about 8°C.