Porto Alegre climate: monthly averages: annual mean temperature 19.3 C; warmest month Feb (24.6 C); coldest month Jul (13.6 C).
Annual mean temperature: 19.3 C
Warmest month: Feb (24.6 C)
Coldest month: Jul (13.6 C)
Wettest month: Sep (5.23 mm/day)
All-time record high: 39.4 C
All-time record low: -1.6 C
Everything below is collected in one spot so you do not have to cross-check Porto Alegre climate: monthly averages by hand. The gap between Jul and Feb is 11.0 C here: 13.6 C against 24.6 C. No month dominates: the wettest is Sep at 5.23 mm/day, the driest Apr at 3.26 mm/day. Taken together that is roughly 1,444 mm of rain a year for the grid cell. Because each page is rebuilt independently, one unavailable upstream never takes the rest of the site down. The table underneath carries the per-month breakdown; the related pages cover the same dataset nearby.
Annual mean temperature 19.3 C
Warmest month Feb (24.6 C)
Coldest month Jul (13.6 C)
Wettest month Sep (5.23 mm/day)
All-time record high 39.4 C
All-time record low -1.6 C
Annual precipitation 1,445 mm / year
Coordinates -30.03283, -51.23019
Population 1,488,252
Average monthly temperature and rainfall in Porto Alegre
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
24.5
3.86
39.3
13.2
Feb
24.6
3.64
39.4
13.1
Mar
23.2
3.33
38.9
8.7
Apr
20.5
3.26
34.2
5.7
May
16.6
3.61
30.8
1.6
Jun
14.5
3.78
28.3
-0.0
Jul
13.6
4.82
29.1
-1.6
Aug
15.1
3.74
30.6
0.8
Sep
16.6
5.23
32.4
1.6
Oct
19.1
5.00
34.0
7.0
Nov
20.8
3.68
35.7
8.7
Dec
23.0
3.56
37.4
9.9
What the Porto Alegre climate table shows
Values are multi-decadal climatological averages for the -30.03283, -51.23019 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 5.23 mm/day in a month?
Rain is recorded as a daily mean, so 5.23 mm/day is roughly 159 mm across a 30-day month.