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December weather forecast in El Cajon

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

	737 mmHg		61%
	3.1 m/s		+17

30 November, Sunday. day, 19°; night, 8°; rain

1 December, mon

	737 mmHg		63%
	3 m/s		+17

1 December, Monday. day, 18°; night, 8°; partly cloudy

2 December, tue

	737 mmHg		63%
	3 m/s		+17

2 December, Tuesday. day, 19°; night, 8°; clear

3 December, wed

	737 mmHg		63%
	3.1 m/s		+17

3 December, Wednesday. day, 19°; night, 8°; clear

4 December, thu

	737 mmHg		63%
	3.1 m/s		+17

4 December, Thursday. day, 18°; night, 8°; clear

5 December, fri

	737 mmHg		61%
	3 m/s		+17

5 December, Friday. day, 19°; night, 8°; partly cloudy

6 December, sat

	737 mmHg		62%
	3.3 m/s		+17

6 December, Saturday. day, 18°; night, 8°; partly cloudy

7 December, sun

	737 mmHg		65%
	3.3 m/s		+17

7 December, Sunday. day, 18°; night, 8°; rain

8 December, mon

	738 mmHg		62%
	3.5 m/s		+17

8 December, Monday. day, 18°; night, 8°; rain

9 December, tue

	738 mmHg		61%
	3.2 m/s		+17

9 December, Tuesday. day, 18°; night, 7°; clear

10 December, wed

	738 mmHg		61%
	3.3 m/s		+17

10 December, Wednesday. day, 18°; night, 7°; clear

11 December, thu

	738 mmHg		63%
	3.4 m/s		+17

11 December, Thursday. day, 18°; night, 8°; overcast

12 December, fri

	737 mmHg		64%
	3.4 m/s		+17

12 December, Friday. day, 17°; night, 7°; clear

13 December, sat

	738 mmHg		70%
	3.3 m/s		+17

13 December, Saturday. day, 17°; night, 7°; clear

14 December, sun

	738 mmHg		67%
	3.4 m/s		+17

14 December, Sunday. day, 17°; night, 7°; partly cloudy

15 December, mon

	738 mmHg		64%
	3.5 m/s		+17

15 December, Monday. day, 17°; night, 7°; partly cloudy

16 December, tue

	738 mmHg		61%
	3.6 m/s		+17

16 December, Tuesday. day, 18°; night, 7°; clear

17 December, wed

	737 mmHg		58%
	3.4 m/s		+17

17 December, Wednesday. day, 18°; night, 7°; partly cloudy

18 December, thu

	737 mmHg		58%
	3.4 m/s		+16

18 December, Thursday. day, 18°; night, 7°; clear

19 December, fri

	738 mmHg		60%
	3.2 m/s		+16

19 December, Friday. day, 18°; night, 6°; clear

20 December, sat

	738 mmHg		61%
	3.2 m/s		+16

20 December, Saturday. day, 18°; night, 7°; clear

21 December, sun

	737 mmHg		66%
	3.2 m/s		+16

21 December, Sunday. day, 17°; night, 7°; rain

22 December, mon

	737 mmHg		67%
	3.7 m/s		+16

22 December, Monday. day, 17°; night, 7°; rain

23 December, tue

	738 mmHg		65%
	3.2 m/s		+16

23 December, Tuesday. day, 17°; night, 7°; rain

24 December, wed

	738 mmHg		63%
	3.4 m/s		+16

24 December, Wednesday. day, 17°; night, 7°; partly cloudy

25 December, thu

	738 mmHg		62%
	3.5 m/s		+16

25 December, Thursday. day, 17°; night, 7°; clear

26 December, fri

	738 mmHg		58%
	3.5 m/s		+16

26 December, Friday. day, 17°; night, 6°; clear

27 December, sat

	738 mmHg		60%
	3.2 m/s		+16

27 December, Saturday. day, 17°; night, 6°; clear

28 December, sun

	738 mmHg		61%
	3.2 m/s		+16

28 December, Sunday. day, 17°; night, 6°; clear

29 December, mon

	737 mmHg		64%
	3.4 m/s		+16

29 December, Monday. day, 17°; night, 7°; partly cloudy

30 December, tue

	737 mmHg		66%
	3 m/s		+16

30 December, Tuesday. day, 17°; night, 7°; partly cloudy

31 December, wed

	737 mmHg		70%
	3.1 m/s		+16

31 December, Wednesday. day, 16°; night, 7°; rain

1 January, thu

	737 mmHg		65%
	3.4 m/s		+16

1 January, Thursday. day, 17°; night, 7°; partly cloudy

2 January, fri

	738 mmHg		60%
	3.3 m/s		+16

2 January, Friday. day, 17°; night, 7°; clear

3 January, sat

	738 mmHg		64%
	3.4 m/s		+16

3 January, Saturday. day, 17°; night, 7°; rain

Average data for 10 years

El Cajon December

15

sunny days

6

days with precipitation

5

cloudy days

15 sunny days; 6 days with precipitation; 5 cloudy days;

63

%

air humidity

1.8

m/s

WindSE

61

mm of precipitation

(15% of annual average)

+17

°C

Water temperature

air humidity 63%; 61 millimeters of precipitation (15% of annual average); Wind south-easterly 1.8 Meters per second; Water temperature +17°

Weather graphs for December

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

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1

Average data for 10 years

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Daytime temperature

Night-time temperature

Cities near you

Los Angeles
Las Vegas
San Diego
Yuma
Santa Monica
Beverly Hills
Mexicali
Santa Barbara
Glendale

Cities with similar weather in December

Alanya
Side
Belek
Larnaca
Paphos
Jerba
Limassol
Rhodes
Aqaba

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

December in El Cajon is the coldest month of the year. In December, the weather in El Cajon is typically warm. Average daily high temperature in December is about 18 degrees above zero. On average, El Cajon has 15 sunny, 9 partly cloudy, 6 rainy, and 1 cloudy day in December. The rains are usually moderate.

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