Annual mean 19°C · wettest around January · prevailing wind E
Warmest
26.8 °C
Coldest
19.6 °C
Wettest
69%
Windiest
2.1 m/s
Prevailing
E
1.8 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
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 Petrópolis over the whole year is 19°C. January is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 13°C. The rainy (wet) season in Petrópolis runs from January to February, peaking in January with a 51% chance of rain on a given day. The dry season is March to September; July is the driest month, at 18%. Winds in Petrópolis are highest in November, averaging 1.7 m/s (6 km/h), and lightest in March, at 1.2 m/s (4 km/h). The prevailing wind is from the E. The clearest skies in Petrópolis come in July, when the sky is typically 49% covered; October is the cloudiest month, at 71%.
Month by month Petrópolis 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
20°C
29°C
51%
61%
1.4 m/s
37
55
14
February
26°C
19°C
28°C
37%
59%
1.4 m/s
46
50
21
March
25°C
19°C
27°C
31%
54%
1.2 m/s
47
51
22
April
23°C
17°C
25°C
26%
55%
1.2 m/s
59
45
34
May
22°C
16°C
22°C
19%
52%
1.2 m/s
69
31
50
June
21°C
15°C
21°C
18%
51%
1.3 m/s
73
26
56
July
20°C
13°C
20°C
18%
49%
1.4 m/s
68
19
64
August
20°C
14°C
20°C
25%
56%
1.5 m/s
71
20
63
September
22°C
16°C
23°C
30%
58%
1.6 m/s
68
33
48
October
23°C
18°C
24°C
39%
71%
1.6 m/s
64
38
41
November
22°C
18°C
23°C
39%
69%
1.7 m/s
66
34
43
December
25°C
19°C
27°C
34%
64%
1.4 m/s
49
47
26
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 Petrópolis weather by season
Year round, Petrópolis has days of about 20°C at their warmest in July, its coolest month, and 27°C in January, its warmest; the coolest hours of the day run from 13°C to 20°C through the year, and the average temperature over the year is 19°C around the clock. Rain is most likely around January and least likely around July. 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.
Petrópolis weather in winterJune to August
High 20°CLow 14°CRain 21%
Winter in Petrópolis has typical daily highs of about 20°C and lows of about 14°C, with a 21% chance of rain on a given day.
Petrópolis weather in springSeptember to November
High 23°CLow 17°CRain 36%
Spring in Petrópolis has typical daily highs of about 23°C and lows of about 17°C, with a 36% chance of rain on a given day.
Petrópolis weather in summerDecember to February
High 26°CLow 20°CRain 41%
Summer in Petrópolis has typical daily highs of about 26°C and lows of about 20°C, with a 41% chance of rain on a given day.
Petrópolis weather in autumnMarch to May
High 23°CLow 17°CRain 25%
Autumn in Petrópolis has typical daily highs of about 23°C and lows of about 17°C, with a 25% chance of rain on a given day.
When is the rainy season in Petrópolis?
The rainy (wet) season in Petrópolis runs from January to February, peaking in January with a 51% chance of rain on a given day. The dry season is March to September; July is the driest month, at 18%.
What time of year is Petrópolis windiest?
Winds in Petrópolis are highest in November, averaging 1.7 m/s (6 km/h), and lightest in March, at 1.2 m/s (4 km/h). The prevailing wind is from the E.
What is the average temperature in Petrópolis year round?
The average temperature in Petrópolis over the whole year is 19°C. January is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 13°C.