Annual mean 28°C · wettest around February · prevailing wind E
Warmest
31.7 °C
Coldest
28.3 °C
Wettest
93%
Windiest
3.2 m/s
Prevailing
E
1.5 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
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 São Mateus do Maranhão over the whole year is 28°C. September is the hottest month, with highs of about 34°C; July is the coldest, with lows of about 23°C. The rainy (wet) season in São Mateus do Maranhão runs from December to May, peaking in February with a 80% chance of rain on a given day. The dry season is August to November; August is the driest month, at 43%. Winds in São Mateus do Maranhão are highest in September, averaging 1.3 m/s (5 km/h), and lightest in April, at 0.6 m/s (2 km/h). The prevailing wind is from the E. The clearest skies in São Mateus do Maranhão come in August, when the sky is typically 42% covered; March is the cloudiest month, at 78%.
Month by month São Mateus do Maranhão 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
24°C
33°C
76%
73%
0.9 m/s
1
40
0
February
29°C
24°C
33°C
80%
76%
0.9 m/s
1
38
0
March
29°C
24°C
34°C
77%
78%
0.8 m/s
1
39
0
April
29°C
25°C
34°C
78%
70%
0.6 m/s
1
28
0
May
30°C
25°C
35°C
69%
62%
0.7 m/s
0
30
0
June
31°C
24°C
33°C
52%
50%
0.8 m/s
0
51
0
July
31°C
23°C
33°C
69%
46%
0.9 m/s
1
61
0
August
33°C
23°C
33°C
43%
42%
1.0 m/s
0
53
0
September
34°C
24°C
34°C
60%
46%
1.3 m/s
0
35
0
October
34°C
25°C
34°C
58%
52%
1.3 m/s
0
27
0
November
33°C
25°C
35°C
58%
61%
1.1 m/s
0
27
0
December
32°C
25°C
34°C
70%
68%
0.9 m/s
0
30
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 São Mateus do Maranhão weather by season
Year round, São Mateus do Maranhão has days of about 29°C at their warmest in March, its coolest month, and 34°C in September, its warmest; the coolest hours of the day run from 23°C to 25°C through the year, and the average temperature over the year is 28°C around the clock. Rain is most likely around February 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.
São Mateus do Maranhão weather in winterJune to August
High 31°CLow 24°CRain 54%
Winter in São Mateus do Maranhão has typical daily highs of about 31°C and lows of about 24°C, with a 54% chance of rain on a given day.
São Mateus do Maranhão weather in springSeptember to November
High 33°CLow 25°CRain 58%
Spring in São Mateus do Maranhão has typical daily highs of about 33°C and lows of about 25°C, with a 58% chance of rain on a given day.
São Mateus do Maranhão weather in summerDecember to February
High 30°CLow 25°CRain 75%
Summer in São Mateus do Maranhão has typical daily highs of about 30°C and lows of about 25°C, with a 75% chance of rain on a given day.
São Mateus do Maranhão weather in autumnMarch to May
High 29°CLow 25°CRain 75%
Autumn in São Mateus do Maranhão has typical daily highs of about 29°C and lows of about 25°C, with a 75% chance of rain on a given day.
When is the rainy season in São Mateus do Maranhão?
The rainy (wet) season in São Mateus do Maranhão runs from December to May, peaking in February with a 80% chance of rain on a given day. The dry season is August to November; August is the driest month, at 43%.
What time of year is São Mateus do Maranhão windiest?
Winds in São Mateus do Maranhão are highest in September, averaging 1.3 m/s (5 km/h), and lightest in April, at 0.6 m/s (2 km/h). The prevailing wind is from the E.
What is the average temperature in São Mateus do Maranhão year round?
The average temperature in São Mateus do Maranhão over the whole year is 28°C. September is the hottest month, with highs of about 34°C; July is the coldest, with lows of about 23°C.