Annual mean 27°C · wettest around December · prevailing wind E
Warmest
33.5 °C
Coldest
28.9 °C
Wettest
100%
Windiest
3.5 m/s
Prevailing
E
2.3 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 Grajaú over the whole year is 27°C. September is the hottest month, with highs of about 33°C; July is the coldest, with lows of about 22°C. The rainy (wet) season in Grajaú runs from September to May, peaking in December with a 85% chance of rain on a given day. The dry season is August; August is the driest month, at 45%. Winds in Grajaú are highest in August, averaging 1.6 m/s (6 km/h), and lightest in January, at 1.0 m/s (4 km/h). The prevailing wind is from the E. The clearest skies in Grajaú come in July, when the sky is typically 28% covered; March is the cloudiest month, at 66%.
Month by month Grajaú 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
29°C
24°C
34°C
79%
63%
1.0 m/s
2
41
0
February
29°C
24°C
34°C
81%
64%
1.0 m/s
2
40
0
March
29°C
24°C
34°C
83%
66%
1.0 m/s
2
37
0
April
30°C
24°C
34°C
83%
58%
1.0 m/s
1
40
0
May
31°C
23°C
33°C
74%
45%
1.4 m/s
2
58
1
June
31°C
22°C
32°C
55%
33%
1.5 m/s
5
68
0
July
32°C
22°C
31°C
67%
28%
1.5 m/s
5
73
0
August
33°C
23°C
33°C
45%
29%
1.6 m/s
1
65
0
September
33°C
24°C
34°C
77%
35%
1.5 m/s
1
47
0
October
33°C
25°C
35°C
75%
45%
1.5 m/s
1
36
0
November
31°C
25°C
35°C
79%
58%
1.2 m/s
1
34
0
December
30°C
24°C
34°C
85%
60%
1.0 m/s
2
35
0
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 Grajaú weather by season
Year round, Grajaú has days of about 29°C at their warmest in March, its coolest month, and 33°C in September, its warmest; the coolest hours of the day run from 22°C to 25°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around December and least likely around August. 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.
Grajaú weather in winterJune to August
High 32°CLow 22°CRain 56%
Winter in Grajaú has typical daily highs of about 32°C and lows of about 22°C, with a 56% chance of rain on a given day.
Grajaú weather in springSeptember to November
High 32°CLow 25°CRain 77%
Spring in Grajaú has typical daily highs of about 32°C and lows of about 25°C, with a 77% chance of rain on a given day.
Grajaú weather in summerDecember to February
High 30°CLow 24°CRain 82%
Summer in Grajaú has typical daily highs of about 30°C and lows of about 24°C, with a 82% chance of rain on a given day.
Grajaú weather in autumnMarch to May
High 30°CLow 24°CRain 80%
Autumn in Grajaú has typical daily highs of about 30°C and lows of about 24°C, with a 80% chance of rain on a given day.
When is the rainy season in Grajaú?
The rainy (wet) season in Grajaú runs from September to May, peaking in December with a 85% chance of rain on a given day. The dry season is August; August is the driest month, at 45%.
What time of year is Grajaú windiest?
Winds in Grajaú are highest in August, averaging 1.6 m/s (6 km/h), and lightest in January, at 1.0 m/s (4 km/h). The prevailing wind is from the E.
What is the average temperature in Grajaú year round?
The average temperature in Grajaú over the whole year is 27°C. September is the hottest month, with highs of about 33°C; July is the coldest, with lows of about 22°C.