Buenos Aires monthly weather forecast

Monthly weather forecast for Buenos Aires. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

31 August 2026, Monday
+12°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
11.1
75%
1012
01:00
+14°C
12
78%
1011
02:00
+14°C
10.6
81%
1011
03:00
+13°C
8.4
85%
1012
04:00
+13°C
9.7
88%
1011
05:00
+12°C
9.3
90%
1011
06:00
+12°C
10.8
92%
1011
07:00
+12°C
9.6
94%
1012
08:00
+12°C
8.3
94%
1012
09:00
+14°C
8.4
87%
1013
10:00
+14°C
9.2
83%
1013
11:00
+15°C
9.5
81%
1013
12:00
+15°C
4.4
77%
1013
13:00
+17°C
5.2
69%
1013
14:00
+17°C
4.7
67%
1012
15:00
+17°C
3.1
68%
1013
16:00
+18°C
4.3
66%
1013
17:00
+18°C
4.6
64%
1013
18:00
+18°C
5
67%
1013
19:00
+16°C
5.5
77%
1013
20:00
+15°C
5.2
80%
1014
21:00
+14°C
3.5
82%
1015
22:00
+14°C
4.7
81%
1015
23:00
+14°C
6.3
82%
1016
01 September 2026, Tuesday
+9°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+13°C
4.6
87%
1016
01:00
+13°C
2.3
90%
1016
02:00
+13°C
1.9
91%
1016
03:00
+12°C
1.3
94%
1016
04:00
+11°C
4.9
98%
1016
05:00
+10°C
6.5
100%
1016
06:00
+10°C
7.4
100%
1016
07:00
+9°C
7.7
100%
1017
08:00
+9°C
7
99%
1018
09:00
+11°C
6.9
92%
1018
10:00
+13°C
4.7
77%
1018
11:00
+16°C
3.5
67%
1018
12:00
+18°C
3.6
58%
1018
13:00
+19°C
4.2
53%
1017
14:00
+19°C
5.2
53%
1016
15:00
+19°C
7.3
62%
1016
16:00
+17°C
8.4
67%
1016
17:00
+16°C
8.6
70%
1016
18:00
+14°C
8
76%
1016
19:00
+13°C
7.6
83%
1016
20:00
+12°C
7.7
86%
1017
21:00
+12°C
8.5
88%
1017
22:00
+12°C
8.8
82%
1017
23:00
+11°C
9.3
81%
1017
02 September 2026, Wednesday
+10°C / +23°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
8.7
89%
1016
01:00
+11°C
7.9
94%
1016
02:00
+11°C
7.6
97%
1015
03:00
+10°C
7.1
99%
1014
04:00
+10°C
7
100%
1013
05:00
+10°C
7.5
99%
1013
06:00
+11°C
8.4
98%
1012
07:00
+11°C
8.4
99%
1012
08:00
+11°C
9.4
96%
1012
09:00
+13°C
7.8
89%
1012
10:00
+15°C
8.5
79%
1012
11:00
+17°C
8.1
75%
1012
12:00
+19°C
9.7
67%
1011
13:00
+19°C
10.5
65%
1010
14:00
+22°C
12.3
56%
1008
15:00
+23°C
13.2
52%
1006
16:00
+23°C
13.5
52%
1005
17:00
+23°C
14.2
53%
1005
18:00
+22°C
12.6
58%
1005
19:00
+19°C
6.4
75%
1006
20:00
+19°C
9.9
79%
1005
21:00
+16°C
13.1
94%
1008
22:00
+16°C
6.8
97%
1007
23:00
+16°C
12.9
94%
1008
03 September 2026, Thursday
+11°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
6.6
94%
1008
01:00
+15°C
7.9
94%
1008
02:00
+14°C
8.7
93%
1008
03:00
+13°C
9
92%
1008
04:00
+13°C
8.8
89%
1008
05:00
+13°C
10.5
82%
1009
06:00
+13°C
10
75%
1009
07:00
+12°C
9.9
73%
1010
08:00
+12°C
9.4
71%
1011
09:00
+13°C
7.9
69%
1012
10:00
+15°C
8.8
59%
1012
11:00
+16°C
9.7
52%
1012
12:00
+17°C
11
47%
1012
13:00
+18°C
13.3
42%
1012
14:00
+18°C
17.1
38%
1011
15:00
+18°C
17.3
37%
1011
16:00
+18°C
15.7
38%
1011
17:00
+17°C
12.7
41%
1011
18:00
+16°C
10.3
45%
1012
19:00
+15°C
9.3
50%
1012
20:00
+14°C
8.5
56%
1013
21:00
+13°C
7.8
62%
1014
22:00
+12°C
6.4
66%
1014
23:00
+11°C
4.8
68%
1015
04 September 2026, Friday
+7°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
4.2
70%
1015
01:00
+10°C
5.4
72%
1016
02:00
+9°C
7.2
73%
1016
03:00
+9°C
8.7
74%
1016
04:00
+8°C
9
76%
1016
05:00
+7°C
8.7
77%
1017
06:00
+7°C
8.3
78%
1017
07:00
+7°C
7.4
76%
1017
08:00
+7°C
6.4
72%
1018
09:00
+8°C
5.6
66%
1019
10:00
+10°C
5.6
58%
1019
11:00
+12°C
5.9
49%
1018
12:00
+13°C
6.6
42%
1018
13:00
+14°C
7.9
38%
1018
14:00
+15°C
9.7
35%
1017
15:00
+15°C
10.9
34%
1016
16:00
+15°C
11.6
35%
1016
17:00
+15°C
11.8
38%
1016
18:00
+14°C
11.6
41%
1016
19:00
+13°C
10.8
45%
1016
20:00
+12°C
10.3
50%
1016
21:00
+11°C
10.4
54%
1016
22:00
+11°C
10.5
57%
1017
23:00
+10°C
10.8
58%
1017
05 September 2026, Saturday
+7°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
11
60%
1017
01:00
+9°C
10.9
61%
1017
02:00
+9°C
11.1
62%
1017
03:00
+8°C
11.8
63%
1017
04:00
+8°C
12.7
64%
1018
05:00
+8°C
14
64%
1018
06:00
+7°C
15.2
65%
1018
07:00
+7°C
16
64%
1019
08:00
+7°C
17.1
63%
1020
09:00
+8°C
18.2
61%
1021
10:00
+9°C
20.3
56%
1022
11:00
+10°C
23.2
50%
1022
12:00
+11°C
24.9
47%
1023
13:00
+11°C
24.4
46%
1023
14:00
+12°C
22.7
47%
1023
15:00
+12°C
20.9
48%
1023
16:00
+12°C
19.2
48%
1023
17:00
+12°C
17.4
48%
1024
18:00
+11°C
15.6
49%
1024
19:00
+10°C
15.1
51%
1026
20:00
+9°C
13.4
53%
1026
21:00
+9°C
12.2
55%
1027
22:00
+8°C
11.3
58%
1027
23:00
+7°C
10.4
62%
1028
06 September 2026, Sunday
+4°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+6°C
9.7
66%
1028
01:00
+5°C
9
71%
1029
02:00
+5°C
8.5
75%
1029
03:00
+4°C
8
78%
1029
04:00
+4°C
7.7
79%
1030
05:00
+4°C
7.4
80%
1030
06:00
+4°C
7.3
80%
1030
07:00
+4°C
6.9
79%
1031
08:00
+4°C
6.3
77%
1031
09:00
+5°C
5.3
74%
1031
10:00
+5°C
3.6
69%
1030
11:00
+7°C
2.3
62%
1030
12:00
+8°C
3.7
55%
1029
13:00
+9°C
6.1
50%
1029
14:00
+11°C
8.6
46%
1028
15:00
+11°C
10
44%
1028
16:00
+11°C
10.3
45%
1028
17:00
+11°C
10.1
47%
1027
18:00
+10°C
9.5
50%
1027
19:00
+10°C
9
55%
1027
20:00
+9°C
8.8
60%
1027
21:00
+9°C
8.7
64%
1026
22:00
+8°C
8.5
67%
1026
23:00
+8°C
8.1
72%
1026
07 September 2026, Monday
+7°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
8.2
76%
1026
01:00
+8°C
8.5
80%
1026
02:00
+7°C
8.9
83%
1026
03:00
+7°C
9.4
85%
1026
04:00
+8°C
9.8
86%
1026
05:00
+8°C
10.1
87%
1026
06:00
+8°C
10.2
86%
1025
07:00
+8°C
10.3
85%
1025
08:00
+9°C
10.3
82%
1025
09:00
+9°C
10.6
78%
1025
10:00
+10°C
10.7
73%
1024
11:00
+11°C
11.1
66%
1024
12:00
+12°C
11.5
59%
1023
13:00
+14°C
11.9
52%
1022
14:00
+14°C
12.2
48%
1022
15:00
+15°C
12.4
46%
1021
16:00
+15°C
12.4
45%
1021
17:00
+15°C
12
47%
1021
18:00
+14°C
11.7
49%
1021
19:00
+14°C
11.5
52%
1021
20:00
+13°C
11.5
56%
1020
21:00
+13°C
11.4
58%
1020
22:00
+12°C
11.2
61%
1020
23:00
+12°C
11.1
64%
1020
08 September 2026, Tuesday
+11°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
11
68%
1019
01:00
+11°C
10.8
71%
1019
02:00
+11°C
10.6
74%
1019
03:00
+11°C
10.3
76%
1019
04:00
+11°C
10.1
78%
1019
05:00
+11°C
9.7
79%
1019
06:00
+11°C
9.4
80%
1018
07:00
+11°C
9.2
79%
1018
08:00
+11°C
8.9
78%
1018
09:00
+12°C
8.7
76%
1018
10:00
+13°C
8.4
73%
1018
11:00
+15°C
8.4
67%
1017
12:00
+16°C
8.3
62%
1016
13:00
+18°C
8.3
57%
1015
14:00
+19°C
8.3
54%
1015
15:00
+19°C
8
53%
1014
16:00
+19°C
7.9
54%
1014
17:00
+19°C
7.8
57%
1014
18:00
+18°C
7.8
62%
1014
19:00
+17°C
7.5
68%
1014
20:00
+16°C
7.3
74%
1015
21:00
+15°C
6.6
79%
1014
22:00
+14°C
5.6
82%
1014
23:00
+14°C
4.2
85%
1014
09 September 2026, Wednesday
+12°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+13°C
2.7
88%
1014
01:00
+13°C
1.5
90%
1014
02:00
+13°C
1
91%
1014
03:00
+12°C
1.5
92%
1014
04:00
+12°C
2
92%
1014
05:00
+12°C
2.3
91%
1014
06:00
+13°C
2.6
90%
1014
07:00
+13°C
2.8
88%
1015
08:00
+13°C
3.2
86%
1015
09:00
+14°C
3.5
83%
1015
10:00
+15°C
3.7
79%
1014
11:00
+16°C
3.8
73%
1014
12:00
+17°C
4.2
68%
1014
13:00
+18°C
4.7
63%
1013
14:00
+19°C
5.1
60%
1013
15:00
+19°C
5.5
59%
1012
16:00
+19°C
5.8
59%
1012
17:00
+18°C
6
62%
1012
18:00
+17°C
6.3
66%
1013
19:00
+16°C
6.5
70%
1013
20:00
+15°C
6.3
75%
1013
21:00
+14°C
5.9
79%
1013
22:00
+14°C
5.1
82%
1013
23:00
+13°C
4.2
86%
1013
10 September 2026, Thursday
+11°C / +24°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
3.9
90%
1013
01:00
+12°C
4.3
93%
1013
02:00
+11°C
5.4
96%
1013
03:00
+11°C
6
97%
1013
04:00
+11°C
6.1
99%
1013
05:00
+11°C
5.6
100%
1014
06:00
+11°C
5
100%
1014
07:00
+11°C
4.4
100%
1014
08:00
+12°C
4.1
96%
1014
09:00
+13°C
4.6
89%
1014
10:00
+14°C
5.9
78%
1014
11:00
+16°C
7.7
64%
1014
12:00
+19°C
10
51%
1014
13:00
+21°C
12.2
41%
1013
14:00
+23°C
14
35%
1013
15:00
+24°C
14.8
32%
1013
16:00
+24°C
14.8
31%
1014
17:00
+23°C
14.1
33%
1014
18:00
+21°C
12.9
36%
1015
19:00
+20°C
11.8
40%
1016
20:00
+18°C
10.8
44%
1017
21:00
+17°C
10
48%
1018
22:00
+16°C
9.6
51%
1018
23:00
+15°C
9.2
55%
1019
11 September 2026, Friday
+10°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
9.2
59%
1019
01:00
+13°C
9.1
62%
1020
02:00
+12°C
9.1
65%
1021
03:00
+11°C
8.9
68%
1021
04:00
+11°C
8.4
69%
1022
05:00
+10°C
7.8
71%
1023
06:00
+10°C
6.8
72%
1024
07:00
+10°C
6
72%
1025
08:00
+10°C
5.2
70%
1025
09:00
+10°C
4.4
66%
1026
10:00
+11°C
3.9
59%
1026
11:00
+12°C
3.6
50%
1026
12:00
+14°C
3.1
42%
1026
13:00
+15°C
2.9
35%
1025
14:00
+17°C
2.6
31%
1025
15:00
+17°C
2.3
29%
1025
16:00
+17°C
2.3
31%
1025
17:00
+16°C
3.5
34%
1025
18:00
+15°C
5.2
39%
1025
19:00
+14°C
7
46%
1026
20:00
+12°C
8.5
54%
1026
21:00
+11°C
9.5
59%
1026
22:00
+11°C
9.9
63%
1026
23:00
+10°C
10
66%
1026
12 September 2026, Saturday
+9°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
9.7
68%
1026
01:00
+9°C
9.4
69%
1026
02:00
+9°C
9.1
69%
1026
03:00
+9°C
8.9
70%
1026
04:00
+9°C
9
70%
1026
05:00
+9°C
8.9
69%
1026
06:00
+9°C
9
68%
1027
07:00
+10°C
9.1
66%
1027
08:00
+10°C
9.4
64%
1027
09:00
+11°C
9.8
61%
1027
10:00
+12°C
10.3
57%
1027
11:00
+13°C
10.7
53%
1026
12:00
+14°C
11.3
48%
1026
13:00
+15°C
11.8
44%
1025
14:00
+16°C
12.1
41%
1024
15:00
+17°C
12.3
41%
1024
16:00
+17°C
12.4
43%
1024
17:00
+16°C
12.3
46%
1024
18:00
+16°C
12
52%
1024
19:00
+15°C
11.8
58%
1024
20:00
+14°C
11.7
64%
1023
21:00
+13°C
11.4
69%
1023
22:00
+13°C
11.1
72%
1023
23:00
+13°C
10.9
74%
1023
13 September 2026, Sunday
+11°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
10.7
76%
1023
01:00
+12°C
10.6
76%
1022
02:00
+12°C
10.9
76%
1022
03:00
+12°C
11
76%
1022
04:00
+11°C
11
76%
1022
05:00
+11°C
11
77%
1022
06:00
+11°C
10.9
76%
1022
07:00
+12°C
10.7
76%
1022
08:00
+12°C
10.6
74%
1022
09:00
+13°C
10.5
71%
1022
10:00
+14°C
10.5
65%
1022
11:00
+16°C
10.5
58%
1021
12:00
+18°C
10.5
51%
1020
13:00
+20°C
10.7
45%
1019
14:00
+21°C
10.8
41%
1018
15:00
+22°C
11
40%
1017
16:00
+22°C
11.3
41%
1017
17:00
+22°C
11.4
45%
1017
18:00
+20°C
12
51%
1016
19:00
+19°C
12.3
57%
1016
20:00
+18°C
12.6
64%
1016
21:00
+17°C
12.9
69%
1016
22:00
+17°C
13
72%
1016
23:00
+16°C
13.2
74%
1015


Climate Characteristics of Buenos Aires

General Overview

Buenos Aires features a humid subtropical climate. The city experiences four distinct seasons, with hot, humid summers and relatively mild winters. As it is located in the Southern Hemisphere, the seasons are reversed compared to Europe or the Middle East.

Summer and Warm Months (December to February)

Summer in Buenos Aires is hot and often characterized by high, sometimes oppressive humidity. Daytime temperatures range between 28°C and 30°C (82-86°F), though heatwaves can push them above 35°C (95°F). This is the busiest tourist season despite the humidity. Short, intense summer rainstorms (thunderstorms) are very common and help to briefly cool the air.

Winter Season (June to August)

Winter in Buenos Aires is mild and cool, but rarely freezing. Daytime temperatures average around 15°C (59°F), while nighttime lows drop to 7°C-9°C (45-48°F) on average. Grey, rainy days are more common during this season, but snow is an extremely rare event, occurring only once every few decades.

Transition Seasons (March-May and September-November)

Autumn and spring are considered the best times to visit the city. The weather is generally clear and very comfortable for walking (around 20°C to 22°C / 68-72°F). In October and November, the city is filled with the spectacular purple blooms of Jacaranda trees, making the avenues particularly beautiful.

 

Weather in Buenos Aires by Month

January

Peak of summer. Very hot and humid. 30°C (86°F) daytime and 20°C (68°F) at night. Sudden thunderstorms possible.

February

Still hot and humid (29°C/84°F daytime). A popular month for carnivals and outdoor events.

March

Start of autumn. Weather becomes very pleasant (26°C/79°F daytime). Humidity begins to drop.

April

One of the best months to visit. Clear days and a comfortable temperature of 23°C (73°F) daytime.

May

Cooler autumn (19°C/66°F daytime). Fall foliage begins and the air is fresh and pleasant for tours.

June

Start of winter. Cool and grey (16°C/61°F daytime and 8°C/46°F at night). Light rain may fall more frequently.

July

The coldest month. 15°C (59°F) daytime and 7°C (45°F) at night. Winter clothing required but not extremely heavy.

August

Similar to July (17°C/63°F daytime). Winds may blow from the river, increasing the chill factor.

September

Start of spring. Gradual warming (19°C/66°F daytime). The city begins to bloom again.

October

A wonderful month. 22°C (72°F) daytime. Purple Jacaranda blooms begin to color the streets.

November

Warm and pleasant spring (25°C/77°F daytime). Ideal time before the heavy summer heat arrives.

December

Start of summer. Temperatures rise to 28°C (82°F). Vibrant city atmosphere leading up to the holidays.

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