Rosario Weather Year-Round — Best Time to Visit
Rosario, Argentina has warm weather year-round. The best time to visit is January (score: 89/100). Annual average high: 23.1°C, total rainfall: 971mm.
When is the best time to visit Rosario?
89
January is the best month to visit Rosario with a travel score of 89/100 (Excellent).
Expect highs of 30.2°C, 8 rain days, and 12.2 hours of daily sunshine.
View January weather details →Travel Score by Month
89
Jan
87
Feb
86
Mar
80
Apr
76
May
72
Jun
72
Jul
78
Aug
83
Sep
83
Oct
88
Nov
89
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Rosario each month?
23.1°C
Avg High
13.6°C
Avg Low
971mm
Annual Rain
How much rain does Rosario get?
Rosario receives 971mm of rain annually. The wettest month is typically March with 129mm, while June is the driest.
What is the weather like each month in Rosario?
January
Best time to visit89
30°C
Low: 20°C
8 rain days
Excellent
February
87
29°C
Low: 19°C
8 rain days
Excellent
March
86
27°C
Low: 18°C
8 rain days
Excellent
April
80
23°C
Low: 14°C
8 rain days
Good
May
76
19°C
Low: 11°C
5 rain days
Good
June
72
16°C
Low: 8°C
4 rain days
Good
July
72
16°C
Low: 7°C
5 rain days
Good
August
78
18°C
Low: 8°C
4 rain days
Good
September
83
21°C
Low: 10°C
5 rain days
Excellent
October
83
24°C
Low: 13°C
9 rain days
Excellent
November
88
27°C
Low: 16°C
8 rain days
Excellent
December
89
29°C
Low: 19°C
8 rain days
Excellent
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Data based on 1994–2024 averages · Last updated: 2024-12-31