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December weather forecast in San Antonio

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

	761 mmHg		88%
	7.3 m/s		+15

30 November, Sunday. day, 14°; night, 13°; clear

1 December, mon

	762 mmHg		88%
	7.3 m/s		+15

1 December, Monday. day, 14°; night, 13°; partly cloudy

2 December, tue

	762 mmHg		87%
	7.4 m/s		+15

2 December, Tuesday. day, 14°; night, 13°; clear

3 December, wed

	761 mmHg		86%
	7.6 m/s		+16

3 December, Wednesday. day, 14°; night, 13°; clear

4 December, thu

	761 mmHg		87%
	7.4 m/s		+16

4 December, Thursday. day, 14°; night, 13°; clear

5 December, fri

	762 mmHg		86%
	7.6 m/s		+16

5 December, Friday. day, 14°; night, 13°; clear

6 December, sat

	762 mmHg		87%
	7.6 m/s		+16

6 December, Saturday. day, 14°; night, 13°; partly cloudy

7 December, sun

	761 mmHg		88%
	7.2 m/s		+16

7 December, Sunday. day, 14°; night, 13°; clear

8 December, mon

	762 mmHg		88%
	7 m/s		+16

8 December, Monday. day, 14°; night, 13°; partly cloudy

9 December, tue

	761 mmHg		88%
	7.3 m/s		+16

9 December, Tuesday. day, 14°; night, 13°; partly cloudy

10 December, wed

	761 mmHg		89%
	7 m/s		+16

10 December, Wednesday. day, 15°; night, 13°; clear

11 December, thu

	761 mmHg		88%
	7.9 m/s		+16

11 December, Thursday. day, 15°; night, 13°; partly cloudy

12 December, fri

	761 mmHg		85%
	7.8 m/s		+16

12 December, Friday. day, 15°; night, 14°; clear

13 December, sat

	761 mmHg		86%
	7.7 m/s		+16

13 December, Saturday. day, 15°; night, 13°; clear

14 December, sun

	761 mmHg		87%
	7.4 m/s		+16

14 December, Sunday. day, 15°; night, 13°; partly cloudy

15 December, mon

	761 mmHg		86%
	7.2 m/s		+16

15 December, Monday. day, 15°; night, 14°; clear

16 December, tue

	761 mmHg		85%
	6.9 m/s		+16

16 December, Tuesday. day, 15°; night, 14°; clear

17 December, wed

	761 mmHg		87%
	7.2 m/s		+16

17 December, Wednesday. day, 15°; night, 14°; clear

18 December, thu

	761 mmHg		88%
	7.2 m/s		+16

18 December, Thursday. day, 15°; night, 14°; clear

19 December, fri

	761 mmHg		88%
	7.1 m/s		+16

19 December, Friday. day, 15°; night, 14°; clear

20 December, sat

	761 mmHg		86%
	7.4 m/s		+16

20 December, Saturday. day, 15°; night, 14°; clear

21 December, sun

	761 mmHg		86%
	8 m/s		+16

21 December, Sunday. day, 15°; night, 14°; clear

22 December, mon

	761 mmHg		85%
	8.2 m/s		+16

22 December, Monday. day, 15°; night, 14°; clear

23 December, tue

	761 mmHg		87%
	7.3 m/s		+16

23 December, Tuesday. day, 15°; night, 14°; clear

24 December, wed

	760 mmHg		88%
	7 m/s		+16

24 December, Wednesday. day, 15°; night, 14°; clear

25 December, thu

	760 mmHg		88%
	6.7 m/s		+16

25 December, Thursday. day, 15°; night, 14°; clear

26 December, fri

	761 mmHg		88%
	7 m/s		+16

26 December, Friday. day, 15°; night, 14°; partly cloudy

27 December, sat

	761 mmHg		87%
	7.3 m/s		+16

27 December, Saturday. day, 15°; night, 14°; clear

28 December, sun

	761 mmHg		88%
	7 m/s		+16

28 December, Sunday. day, 15°; night, 14°; clear

29 December, mon

	761 mmHg		89%
	6.9 m/s		+16

29 December, Monday. day, 15°; night, 14°; partly cloudy

30 December, tue

	761 mmHg		89%
	6.9 m/s		+17

30 December, Tuesday. day, 15°; night, 14°; clear

31 December, wed

	761 mmHg		89%
	6.7 m/s		+17

31 December, Wednesday. day, 15°; night, 14°; clear

1 January, thu

	761 mmHg		88%
	7.2 m/s		+17

1 January, Thursday. day, 15°; night, 14°; clear

2 January, fri

	760 mmHg		87%
	7.4 m/s		+17

2 January, Friday. day, 15°; night, 14°; clear

3 January, sat

	760 mmHg		87%
	6.9 m/s		+17

3 January, Saturday. day, 16°; night, 14°; clear

Average data for 10 years

San Antonio December

23

sunny days

0

days with precipitation

8

cloudy days

23 sunny days; 0 days with precipitation; 8 cloudy days;

87

%

air humidity

5

m/s

WindSW

3

mm of precipitation

(1% of annual average)

+16

°C

Water temperature

air humidity 87%; 3 millimeters of precipitation (1% of annual average); Wind south-westerly 5 Meters per second; Water temperature +16°

Weather graphs for December

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

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

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

Santiago
Mendoza
Valparaiso
Vina del Mar
Rancagua
Concepcion
La Serena
Concon
San Rafael

Cities with similar weather in December

Alanya
Side
Ayia Napa
Larnaca
Tel Aviv
Limassol
Rhodes
Protaras
Haifa

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

In December, the weather in San Antonio is typically warm. Average daily high temperature in December is about 15 degrees above zero. On average, San Antonio has 23 sunny and 8 partly cloudy days in December. December as well as January, February, and March is considered the most comfortable time to visit San Antonio.

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