Measurements:
°C
°F
Buenos Aires
48°F
S 7 mph
Feels like: 44°F
Precip: 7%
World Resorts Argentina Buenos Aires Weather

7 Day Weather Forecast

09.08
tue
DAY
56°F
SW 7 mph
precip
3%
NIGHT
54°F
S 7 mph
precip
8%
09.09
wed
DAY
58°F
SW 6 mph
precip
16%
NIGHT
56°F
W 3 mph
precip
21%
09.10
thu
DAY
62°F
W 6 mph
precip
15%
NIGHT
58°F
W 9 mph
precip
25%
09.11
fri
DAY
62°F
NW 15 mph
precip
23%
NIGHT
46°F
N 19 mph
precip
17%
09.12
sat
DAY
52°F
NW 11 mph
precip
8%
NIGHT
46°F
NW 12 mph
precip
6%
09.13
sun
DAY
52°F
W 11 mph
precip
13%
NIGHT
52°F
SW 9 mph
precip
17%
09.14
mon
DAY
54°F
NE 2 mph
precip
14%
NIGHT
50°F
SE 9 mph
precip
6%

Buenos Aires Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Buenos Aires was 17.0°F. The maximum and minimum values were 15.3°F and 19.3°F respectively.

Buenos Aires on the Weather Map

Best Time to Visit Buenos Aires
The most sunny months:
January 24 days
December 23 days
February 21 days
The most warm months:
January 87.6 °F
February 85.7 °F
December 84.1 °F
Warmest sea temperature:
January 82.7 °F
February 81.9 °F
December 79.7 °F
The most cold months:
July 57.0 °F
June 58.3 °F
August 59.5 °F
The most rainy months:
February 4 days
December 4 days
January 4 days
The most windy months:
October 11 mph
November 11 mph
September 10 mph