A consolidated reference for Rosario climate: monthly averages, rebuilt from public data on a schedule. Expect 10.1 C at the coldest (Jul) and 26.0 C at the warmest (Jan) — a 15.9 C spread. Expect a wet month and a dry month but no real season: 4.93 mm/day in Feb against 0.73 mm/day in Jun. Taken together that is roughly 1,093 mm of rain a year for the grid cell. Every run re-reads the source and only rewrites this page when a figure actually changed. Use the table for exact numbers, or the related pages below for neighbouring locations and periods.
Annual mean temperature 18.0 C
Warmest month Jan (26.0 C)
Coldest month Jul (10.1 C)
Wettest month Feb (4.93 mm/day)
All-time record high 43.0 C
All-time record low -3.7 C
Annual precipitation 1,091 mm / year
Coordinates -32.9468, -60.6393
Population 948,312
Average monthly temperature and rainfall in Rosario
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
26.0
3.97
43.0
10.4
Feb
24.4
4.93
40.5
8.0
Mar
21.8
4.77
39.2
6.7
Apr
17.8
3.70
35.0
2.2
May
13.8
1.67
31.6
-1.3
Jun
10.8
0.73
27.9
-3.7
Jul
10.1
0.84
29.2
-3.7
Aug
12.1
1.24
34.5
-3.0
Sep
14.9
1.93
35.5
-0.4
Oct
18.4
3.95
39.2
3.5
Nov
21.9
3.63
39.6
4.5
Dec
24.3
4.59
41.9
9.3
What the Rosario climate table shows
Values are multi-decadal climatological averages for the -32.9468, -60.6393 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.
How much rain is 4.93 mm/day in a month?
Rain is recorded as a daily mean, so 4.93 mm/day is roughly 150 mm across a 30-day month.