Annual mean 27°C · wettest around March · prevailing wind NE
Warmest
31.9 °C
Coldest
28.5 °C
Wettest
84%
Windiest
3.0 m/s
Prevailing
NE
2.1 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 Castanhal over the whole year is 27°C. October is the hottest month, with highs of about 32°C; February is the coldest, with lows of about 24°C. The rainy (wet) season in Castanhal runs from January to May, peaking in March with a 71% chance of rain on a given day. The dry season is August to December; October is the driest month, at 44%. Winds in Castanhal are highest in October, averaging 2.1 m/s (8 km/h), and lightest in January, at 1.1 m/s (4 km/h). The prevailing wind is from the NE. The clearest skies in Castanhal come in September, when the sky is typically 43% covered; March is the cloudiest month, at 74%.
Month by month Castanhal 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
25°C
34°C
67%
68%
1.1 m/s
2
36
0
February
29°C
24°C
33°C
71%
73%
1.1 m/s
3
42
0
March
29°C
25°C
33°C
71%
74%
1.1 m/s
3
40
0
April
29°C
25°C
34°C
69%
70%
1.1 m/s
1
33
0
May
30°C
25°C
35°C
68%
65%
1.2 m/s
0
22
0
June
31°C
25°C
35°C
56%
56%
1.3 m/s
0
24
0
July
31°C
25°C
35°C
58%
51%
1.4 m/s
0
25
0
August
31°C
25°C
35°C
54%
43%
1.7 m/s
0
27
0
September
32°C
25°C
35°C
46%
43%
1.9 m/s
0
24
0
October
32°C
26°C
35°C
44%
44%
2.1 m/s
0
23
0
November
32°C
26°C
35°C
50%
49%
1.9 m/s
0
23
0
December
31°C
25°C
34°C
55%
60%
1.7 m/s
0
27
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 Castanhal weather by season
Year round, Castanhal has days of about 29°C at their warmest in February, its coolest month, and 32°C in October, its warmest; the coolest hours of the day run from 24°C to 26°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around March and least likely around October. 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.
Castanhal weather in winterJune to August
High 31°CLow 25°CRain 56%
Winter in Castanhal has typical daily highs of about 31°C and lows of about 25°C, with a 56% chance of rain on a given day.
Castanhal weather in springSeptember to November
High 32°CLow 25°CRain 47%
Spring in Castanhal has typical daily highs of about 32°C and lows of about 25°C, with a 47% chance of rain on a given day.
Castanhal weather in summerDecember to February
High 30°CLow 25°CRain 64%
Summer in Castanhal has typical daily highs of about 30°C and lows of about 25°C, with a 64% chance of rain on a given day.
Castanhal weather in autumnMarch to May
High 29°CLow 25°CRain 69%
Autumn in Castanhal has typical daily highs of about 29°C and lows of about 25°C, with a 69% chance of rain on a given day.
When is the rainy season in Castanhal?
The rainy (wet) season in Castanhal runs from January to May, peaking in March with a 71% chance of rain on a given day. The dry season is August to December; October is the driest month, at 44%.
What time of year is Castanhal windiest?
Winds in Castanhal are highest in October, averaging 2.1 m/s (8 km/h), and lightest in January, at 1.1 m/s (4 km/h). The prevailing wind is from the NE.
What is the average temperature in Castanhal year round?
The average temperature in Castanhal over the whole year is 27°C. October is the hottest month, with highs of about 32°C; February is the coldest, with lows of about 24°C.