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December weather forecast in São Mateus

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

30 November, sun

	753 mmHg		82%
	4.19 m/s		+27

30 November, Sunday. day, 29°; night, 22°; rain

1 December, mon

	753 mmHg		81%
	4.6 m/s		+27

1 December, Monday. day, 29°; night, 22°; rain

2 December, tue

	753 mmHg		81%
	4.4 m/s		+27

2 December, Tuesday. day, 29°; night, 22°; rain

3 December, wed

	753 mmHg		80%
	4.5 m/s		+27

3 December, Wednesday. day, 29°; night, 22°; overcast

4 December, thu

	753 mmHg		79%
	4.3 m/s		+27

4 December, Thursday. day, 29°; night, 22°; rain

5 December, fri

	753 mmHg		80%
	4.19 m/s		+27

5 December, Friday. day, 30°; night, 22°; rain

6 December, sat

	753 mmHg		79%
	4.3 m/s		+27

6 December, Saturday. day, 30°; night, 22°; rain

7 December, sun

	753 mmHg		81%
	4.19 m/s		+27

7 December, Sunday. day, 30°; night, 22°; rain

8 December, mon

	753 mmHg		82%
	4.3 m/s		+27

8 December, Monday. day, 30°; night, 22°; rain

9 December, tue

	753 mmHg		80%
	4.19 m/s		+27

9 December, Tuesday. day, 30°; night, 22°; overcast

10 December, wed

	753 mmHg		79%
	4.3 m/s		+27

10 December, Wednesday. day, 30°; night, 22°; partly cloudy

11 December, thu

	753 mmHg		79%
	4 m/s		+27

11 December, Thursday. day, 30°; night, 22°; overcast

12 December, fri

	753 mmHg		80%
	4.3 m/s		+28

12 December, Friday. day, 30°; night, 22°; rain

13 December, sat

	753 mmHg		80%
	4.4 m/s		+27

13 December, Saturday. day, 30°; night, 22°; rain

14 December, sun

	753 mmHg		81%
	4.4 m/s		+27

14 December, Sunday. day, 29°; night, 22°; rain

15 December, mon

	754 mmHg		81%
	4.3 m/s		+27

15 December, Monday. day, 29°; night, 22°; rain

16 December, tue

	753 mmHg		80%
	4.19 m/s		+27

16 December, Tuesday. day, 30°; night, 22°; rain

17 December, wed

	753 mmHg		80%
	4.3 m/s		+27

17 December, Wednesday. day, 30°; night, 23°; rain

18 December, thu

	754 mmHg		80%
	4.4 m/s		+27

18 December, Thursday. day, 30°; night, 22°; rain

19 December, fri

	754 mmHg		81%
	4.4 m/s		+27

19 December, Friday. day, 30°; night, 22°; rain

20 December, sat

	754 mmHg		79%
	4.1 m/s		+27

20 December, Saturday. day, 31°; night, 22°; partly cloudy

21 December, sun

	754 mmHg		78%
	4.3 m/s		+28

21 December, Sunday. day, 31°; night, 22°; clear

22 December, mon

	754 mmHg		79%
	4.5 m/s		+27

22 December, Monday. day, 31°; night, 22°; clear

23 December, tue

	754 mmHg		79%
	4.5 m/s		+27

23 December, Tuesday. day, 31°; night, 23°; rain

24 December, wed

	754 mmHg		79%
	4.3 m/s		+27

24 December, Wednesday. day, 30°; night, 22°; partly cloudy

25 December, thu

	754 mmHg		79%
	4.3 m/s		+27

25 December, Thursday. day, 30°; night, 22°; rain

26 December, fri

	754 mmHg		79%
	4.4 m/s		+27

26 December, Friday. day, 30°; night, 22°; rain

27 December, sat

	754 mmHg		78%
	4.4 m/s		+28

27 December, Saturday. day, 30°; night, 22°; clear

28 December, sun

	754 mmHg		80%
	4.3 m/s		+27

28 December, Sunday. day, 30°; night, 22°; clear

29 December, mon

	754 mmHg		80%
	4.3 m/s		+27

29 December, Monday. day, 30°; night, 23°; rain

30 December, tue

	753 mmHg		80%
	4.3 m/s		+28

30 December, Tuesday. day, 31°; night, 23°; partly cloudy

31 December, wed

	753 mmHg		79%
	4.4 m/s		+28

31 December, Wednesday. day, 31°; night, 23°; partly cloudy

1 January, thu

	753 mmHg		78%
	4.6 m/s		+28

1 January, Thursday. day, 31°; night, 23°; partly cloudy

2 January, fri

	753 mmHg		79%
	4.4 m/s		+28

2 January, Friday. day, 31°; night, 23°; rain

3 January, sat

	753 mmHg		79%
	4.4 m/s		+27

3 January, Saturday. day, 31°; night, 23°; rain

Average data for 10 years

São Mateus December

4

sunny days

19

days with precipitation

14

cloudy days

4 sunny days; 19 days with precipitation; 14 cloudy days;

80

%

air humidity

2.9

m/s

WindE

176

mm of precipitation

(18% of annual average)

+27

°C

Water temperature

air humidity 80%; 176 millimeters of precipitation (18% of annual average); Wind easterly 2.9 Meters per second; Water temperature +27°

Weather graphs for December

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SE

E

SE

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

NE

E

E

E

E

E

E

E

E

E

E

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Vitória
Eunápolis
Itabuna
Mucuri
Cachoeiro de Itapemirim
Guarapari

The weather forecast for December 2025 is based on historical data from the past 10 years.

In December, the weather in São Mateus is typically hot. Average daily high temperature in December is about 30 degrees above zero. On average, São Mateus has 19 rainy, 5 partly cloudy, 4 sunny, and 3 cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit São Mateus.

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