Annual mean 23°C · wettest around January · prevailing wind SE
Warmest
30.1 °C
Coldest
22.5 °C
Wettest
86%
Windiest
4.3 m/s
Prevailing
SE
3.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Piraí over the whole year is 23°C. January is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 16°C. The rainy (wet) season in Piraí runs from September to April, peaking in January with a 68% chance of rain on a given day. The dry season is May to August; July is the driest month, at 17%. Winds in Piraí are highest in November, averaging 2.7 m/s (10 km/h), and lightest in May, at 2.0 m/s (7 km/h). The prevailing wind is from the SE. The clearest skies in Piraí come in July, when the sky is typically 49% covered; October is the cloudiest month, at 74%.
Month by month Piraí 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
30°C
23°C
32°C
68%
61%
2.5 m/s
16
40
7
February
29°C
23°C
31°C
63%
60%
2.3 m/s
16
47
8
March
29°C
22°C
31°C
66%
56%
2.3 m/s
20
51
8
April
26°C
20°C
28°C
52%
54%
2.1 m/s
39
61
15
May
25°C
19°C
25°C
43%
52%
2.0 m/s
57
53
29
June
24°C
17°C
24°C
28%
51%
2.0 m/s
64
47
35
July
23°C
16°C
23°C
17%
49%
2.2 m/s
71
37
46
August
23°C
17°C
23°C
31%
53%
2.4 m/s
70
34
46
September
26°C
19°C
26°C
44%
57%
2.6 m/s
56
50
27
October
26°C
21°C
27°C
59%
74%
2.6 m/s
49
49
22
November
26°C
21°C
27°C
58%
69%
2.7 m/s
48
54
21
December
28°C
22°C
30°C
52%
65%
2.4 m/s
29
51
11
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 Piraí weather by season
Year round, Piraí has days of about 23°C at their warmest in July, its coolest month, and 30°C in January, its warmest; the coolest hours of the day run from 16°C to 23°C through the year, and the average temperature over the year is 23°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.
Piraí weather in winterJune to August
High 23°CLow 17°CRain 26%
Winter in Piraí has typical daily highs of about 23°C and lows of about 17°C, with a 26% chance of rain on a given day.
Piraí weather in springSeptember to November
High 26°CLow 20°CRain 54%
Spring in Piraí has typical daily highs of about 26°C and lows of about 20°C, with a 54% chance of rain on a given day.
Piraí weather in summerDecember to February
High 29°CLow 23°CRain 61%
Summer in Piraí has typical daily highs of about 29°C and lows of about 23°C, with a 61% chance of rain on a given day.
Piraí weather in autumnMarch to May
High 27°CLow 20°CRain 53%
Autumn in Piraí has typical daily highs of about 27°C and lows of about 20°C, with a 53% chance of rain on a given day.
When is the rainy season in Piraí?
The rainy (wet) season in Piraí runs from September to April, peaking in January with a 68% chance of rain on a given day. The dry season is May to August; July is the driest month, at 17%.
What time of year is Piraí windiest?
Winds in Piraí are highest in November, averaging 2.7 m/s (10 km/h), and lightest in May, at 2.0 m/s (7 km/h). The prevailing wind is from the SE.
What is the average temperature in Piraí year round?
The average temperature in Piraí over the whole year is 23°C. January is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 16°C.