Rosario hourly weather forecast

Hourly weather forecast for Rosario. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

20 February 2026, Friday
+20°C / +28°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+22°C
5.8
92%
1012
01:00
+21°C
5.7
93%
1012
02:00
+21°C
6.3
95%
1012
03:00
+21°C
7.9
96%
1012
04:00
+20°C
10.1
96%
1012
05:00
+20°C
11.8
95%
1012
06:00
+20°C
10.9
96%
1012
07:00
+20°C
9.5
95%
1013
08:00
+21°C
10.8
92%
1013
09:00
+22°C
16.2
85%
1013
10:00
+24°C
18.3
77%
1014
11:00
+25°C
15.4
72%
1014
12:00
+26°C
14.7
66%
1014
13:00
+27°C
14.9
61%
1013
14:00
+27°C
16.1
57%
1013
15:00
+28°C
15.1
56%
1012
16:00
+28°C
14.1
54%
1012
17:00
+28°C
13.6
52%
1011
18:00
+27°C
13.5
50%
1011
19:00
+26°C
11.3
53%
1011
20:00
+24°C
9.8
60%
1011
21:00
+22°C
9.5
62%
1011
22:00
+21°C
8.2
62%
1012
23:00
+20°C
8.6
66%
1012
21 February 2026, Saturday
+16°C / +28°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+19°C
10.2
72%
1013
01:00
+18°C
9.6
74%
1013
02:00
+18°C
10.6
73%
1012
03:00
+17°C
9.7
74%
1012
04:00
+16°C
9.4
76%
1012
05:00
+16°C
9.4
77%
1012
06:00
+16°C
10.3
79%
1012
07:00
+16°C
10.5
82%
1013
08:00
+17°C
11.1
83%
1013
09:00
+18°C
12.4
80%
1014
10:00
+21°C
13.6
77%
1014
11:00
+23°C
12.3
75%
1014
12:00
+25°C
12.6
72%
1014
13:00
+26°C
12.7
69%
1013
14:00
+27°C
12.4
66%
1013
15:00
+28°C
12.1
60%
1012
16:00
+28°C
11.8
55%
1011
17:00
+28°C
12.6
54%
1011
18:00
+27°C
12.9
57%
1011
19:00
+26°C
13.1
62%
1011
20:00
+25°C
14.6
65%
1011
21:00
+24°C
9.7
71%
1011
22:00
+23°C
7.2
75%
1012
23:00
+22°C
8.2
80%
1013
22 February 2026, Sunday
+18°C / +29°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+22°C
11
80%
1012
01:00
+21°C
9.4
82%
1012
02:00
+20°C
7.8
85%
1012
03:00
+20°C
7.4
87%
1012
04:00
+19°C
5.9
88%
1012
05:00
+19°C
7
91%
1012
06:00
+18°C
9.6
92%
1011
07:00
+18°C
10.5
94%
1012
08:00
+19°C
8
92%
1012
09:00
+22°C
8.4
83%
1013
10:00
+23°C
8.3
79%
1013
11:00
+25°C
9
73%
1013
12:00
+27°C
9.5
68%
1012
13:00
+28°C
10.1
62%
1011
14:00
+29°C
10.5
55%
1011
15:00
+29°C
10.6
51%
1010
16:00
+29°C
11.5
52%
1009
17:00
+28°C
12.7
55%
1009
18:00
+27°C
12.8
59%
1008
19:00
+26°C
10.9
64%
1008
20:00
+25°C
8.3
70%
1009
21:00
+24°C
6.4
75%
1009
22:00
+23°C
5.7
78%
1009
23:00
+23°C
5.6
81%
1009
23 February 2026, Monday
+20°C / +29°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+22°C
5.5
83%
1009
01:00
+22°C
5.2
86%
1009
02:00
+21°C
4.9
88%
1008
03:00
+21°C
4.7
90%
1008
04:00
+20°C
4.8
92%
1008
05:00
+20°C
5
93%
1008
06:00
+20°C
5.5
93%
1008
07:00
+20°C
6.9
91%
1008
08:00
+21°C
9.1
88%
1008
09:00
+23°C
10.4
84%
1008
10:00
+24°C
9.2
78%
1008
11:00
+26°C
7.3
72%
1008
12:00
+28°C
5.6
67%
1008
13:00
+28°C
4.6
64%
1007
14:00
+29°C
3.4
62%
1006
15:00
+29°C
2.3
62%
1005
16:00
+28°C
1.8
64%
1005
17:00
+28°C
3
67%
1004
18:00
+27°C
3.6
71%
1003
19:00
+26°C
1.8
77%
1003
20:00
+25°C
2.5
84%
1003
21:00
+24°C
5
89%
1003
22:00
+23°C
5.8
92%
1004
23:00
+22°C
7
94%
1004
24 February 2026, Tuesday
+20°C / +30°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+22°C
7.5
95%
1004
01:00
+21°C
6.6
95%
1004
02:00
+21°C
4.5
95%
1003
03:00
+21°C
3.6
95%
1003
04:00
+20°C
5.1
97%
1003
05:00
+20°C
5.4
97%
1003
06:00
+20°C
6.2
96%
1003
07:00
+20°C
7.8
94%
1004
08:00
+21°C
10.4
92%
1004
09:00
+22°C
12.8
88%
1005
10:00
+23°C
15.3
82%
1005
11:00
+25°C
18.1
74%
1005
12:00
+26°C
19.8
67%
1005
13:00
+28°C
20.3
61%
1005
14:00
+29°C
19.7
56%
1005
15:00
+30°C
18.9
52%
1004
16:00
+30°C
18.6
51%
1004
17:00
+30°C
17.9
51%
1004
18:00
+29°C
16.5
54%
1004
19:00
+28°C
13
60%
1004
20:00
+26°C
8.7
69%
1005
21:00
+25°C
6.6
75%
1005
22:00
+24°C
8
77%
1006
23:00
+24°C
11.5
78%
1007


Climate Characteristics of Rosario

General Overview

Rosario features a humid subtropical climate. The city enjoys moderate temperatures throughout much of the year but is known for hot, very humid summers and relatively short, mild winters. Its location on the banks of the Paraná River contributes to high humidity and frequent mists, especially during autumn and winter.

Summer and Rainy Season (November to March)

Summer in Rosario is very hot and often oppressive due to high humidity. Daytime temperatures range between 30°C and 32°C (86-90°F), though heatwaves can easily push them above 35°C (95°F). This is the wettest season, with most rainfall occurring as intense and sudden afternoon or evening thunderstorms.

Winter Season (June to August)

Winter in Rosario is mild and quite pleasant. Daytime temperatures range from 16°C to 18°C (61-64°F), while nighttime lows drop to 7°C (45°F) on average. Snow is an extremely rare event in Rosario, but frost may occur in the early mornings at the peak of the season. Sunny and clear days are very common in winter.

Transition Seasons (April-May and September-October)

Autumn and spring are considered the most beautiful times to visit the city. The weather is balanced and very comfortable for activities along the river (around 22°C to 24°C / 72-75°F). In spring, nature blooms and the air is fresh, while autumn brings clear skies and pleasant evenings.

 

 

 

Weather in Rosario by Month

January

Peak of summer. Very hot and humid. 32°C (90°F) daytime and 20°C (68°F) at night. Sudden thunderstorms are common.

February

Still hot and humid (30°C/86°F daytime). Many sunny days allowing for river beach activities.

March

Start of autumn. Warm and pleasant (28°C/82°F daytime). Humidity begins to decrease gradually.

April

One of the best months. Clear days and a comfortable temperature of 24°C (75°F) daytime.

May

Cool and pleasant autumn (20°C/68°F daytime). Nights become significantly cooler (10°C/50°F).

June

Start of winter. Mild and cool (16°C/61°F daytime and 8°C/46°F at night). Morning mists common near the river.

July

The coldest month. 16°C (61°F) daytime and 7°C (45°F) at night. Mostly sunny days.

August

Slight warming (19°C/66°F daytime). Mostly dry and clear weather.

September

Start of spring. 21°C (70°F) daytime. Renewal and blooming throughout the city.

October

A wonderful month. 25°C (77°F) daytime. Ideal weather for tours and outdoor activities.

November

Warm and wetter spring (28°C/82°F daytime). Humidity rises toward summer.

December

Start of summer. Hot (30°C/86°F daytime). Vibrant city atmosphere leading up to the holidays.

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