Annual mean 27°C · wettest around July · prevailing wind E
Warmest
31.7 °C
Coldest
27.3 °C
Wettest
75%
Windiest
3.2 m/s
Prevailing
E
2.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
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 Rosario over the whole year is 27°C. May is the hottest month, with highs of about 32°C; February is the coldest, with lows of about 24°C. Rosario has no sharply defined rainy season: the chance of rain on a given day runs from 51% in March, the driest month, to 69% in July, the wettest. Winds in Rosario are highest in January, averaging 2.6 m/s (9 km/h), and lightest in June, at 1.6 m/s (6 km/h). The prevailing wind is from the E. The clearest skies in Rosario come in April, when the sky is typically 53% covered; July is the cloudiest month, at 77%.
Month by month Rosario 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
27°C
24°C
31°C
54%
70%
2.6 m/s
14
60
2
February
28°C
24°C
31°C
52%
63%
2.6 m/s
11
60
2
March
29°C
25°C
33°C
51%
55%
2.4 m/s
5
46
0
April
31°C
25°C
35°C
60%
53%
2.1 m/s
1
21
0
May
32°C
26°C
37°C
64%
61%
1.8 m/s
0
7
0
June
31°C
26°C
37°C
65%
70%
1.6 m/s
0
9
0
July
30°C
26°C
35°C
69%
77%
1.9 m/s
0
17
0
August
30°C
26°C
35°C
65%
75%
1.9 m/s
1
17
0
September
30°C
25°C
35°C
67%
74%
1.8 m/s
1
14
0
October
30°C
25°C
35°C
66%
72%
1.9 m/s
2
21
0
November
29°C
25°C
34°C
64%
69%
2.3 m/s
2
33
0
December
28°C
25°C
32°C
62%
73%
2.5 m/s
8
46
1
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 Rosario weather by season
Year round, Rosario has days of about 27°C at their warmest in January, its coolest month, and 32°C in May, its warmest; the coolest hours of the day run from 24°C to 26°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around July and least likely around March. 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.
Rosario weather in winterDecember to February
High 28°CLow 24°CRain 56%
Winter in Rosario has typical daily highs of about 28°C and lows of about 24°C, with a 56% chance of rain on a given day.
Rosario weather in springMarch to May
High 31°CLow 25°CRain 58%
Spring in Rosario has typical daily highs of about 31°C and lows of about 25°C, with a 58% chance of rain on a given day.
Rosario weather in summerJune to August
High 30°CLow 26°CRain 66%
Summer in Rosario has typical daily highs of about 30°C and lows of about 26°C, with a 66% chance of rain on a given day.
Rosario weather in autumnSeptember to November
High 30°CLow 25°CRain 65%
Autumn in Rosario has typical daily highs of about 30°C and lows of about 25°C, with a 65% chance of rain on a given day.
When is the rainy season in Rosario?
Rosario has no sharply defined rainy season: the chance of rain on a given day runs from 51% in March, the driest month, to 69% in July, the wettest.
What time of year is Rosario windiest?
Winds in Rosario are highest in January, averaging 2.6 m/s (9 km/h), and lightest in June, at 1.6 m/s (6 km/h). The prevailing wind is from the E.
What is the average temperature in Rosario year round?
The average temperature in Rosario over the whole year is 27°C. May is the hottest month, with highs of about 32°C; February is the coldest, with lows of about 24°C.