10 day forecast Monthly forecast Weather map

City or area

Go to comparison

December weather forecast in San Luis Obispo

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

	736 mmHg		74%
	3.8 m/s		+16

30 November, Sunday. day, 16°; night, 7°; partly cloudy

1 December, mon

	736 mmHg		71%
	3.9 m/s		+16

1 December, Monday. day, 16°; night, 7°; clear

2 December, tue

	736 mmHg		72%
	3.8 m/s		+15

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

3 December, wed

	737 mmHg		73%
	3.6 m/s		+15

3 December, Wednesday. day, 16°; night, 7°; clear

4 December, thu

	737 mmHg		71%
	3.7 m/s		+15

4 December, Thursday. day, 16°; night, 7°; clear

5 December, fri

	737 mmHg		72%
	3.6 m/s		+15

5 December, Friday. day, 16°; night, 7°; partly cloudy

6 December, sat

	736 mmHg		74%
	3.4 m/s		+15

6 December, Saturday. day, 16°; night, 7°; clear

7 December, sun

	737 mmHg		75%
	3.9 m/s		+15

7 December, Sunday. day, 15°; night, 7°; rain

8 December, mon

	737 mmHg		74%
	3.7 m/s		+15

8 December, Monday. day, 15°; night, 6°; clear

9 December, tue

	738 mmHg		75%
	3.5 m/s		+15

9 December, Tuesday. day, 15°; night, 6°; partly cloudy

10 December, wed

	738 mmHg		77%
	3.8 m/s		+15

10 December, Wednesday. day, 15°; night, 6°; partly cloudy

11 December, thu

	737 mmHg		77%
	3.8 m/s		+15

11 December, Thursday. day, 15°; night, 7°; overcast

12 December, fri

	736 mmHg		76%
	3.8 m/s		+15

12 December, Friday. day, 15°; night, 7°; rain

13 December, sat

	737 mmHg		79%
	3.7 m/s		+15

13 December, Saturday. day, 15°; night, 7°; clear

14 December, sun

	737 mmHg		77%
	4.4 m/s		+14

14 December, Sunday. day, 14°; night, 7°; rain

15 December, mon

	738 mmHg		75%
	3.9 m/s		+14

15 December, Monday. day, 14°; night, 6°; clear

16 December, tue

	737 mmHg		74%
	3.8 m/s		+14

16 December, Tuesday. day, 15°; night, 6°; clear

17 December, wed

	737 mmHg		73%
	3.8 m/s		+14

17 December, Wednesday. day, 15°; night, 6°; overcast

18 December, thu

	737 mmHg		74%
	3.9 m/s		+14

18 December, Thursday. day, 15°; night, 6°; clear

19 December, fri

	737 mmHg		76%
	4 m/s		+14

19 December, Friday. day, 14°; night, 6°; clear

20 December, sat

	737 mmHg		76%
	3.8 m/s		+14

20 December, Saturday. day, 14°; night, 6°; clear

21 December, sun

	736 mmHg		75%
	3.6 m/s		+14

21 December, Sunday. day, 14°; night, 6°; overcast

22 December, mon

	736 mmHg		77%
	3.9 m/s		+14

22 December, Monday. day, 14°; night, 7°; rain

23 December, tue

	737 mmHg		77%
	3.8 m/s		+14

23 December, Tuesday. day, 14°; night, 6°; clear

24 December, wed

	738 mmHg		75%
	3.9 m/s		+14

24 December, Wednesday. day, 14°; night, 6°; rain

25 December, thu

	737 mmHg		73%
	3.8 m/s		+14

25 December, Thursday. day, 14°; night, 5°; clear

26 December, fri

	737 mmHg		72%
	3.9 m/s		+14

26 December, Friday. day, 14°; night, 5°; partly cloudy

27 December, sat

	738 mmHg		72%
	4 m/s		+14

27 December, Saturday. day, 14°; night, 5°; partly cloudy

28 December, sun

	737 mmHg		71%
	3.9 m/s		+14

28 December, Sunday. day, 14°; night, 5°; partly cloudy

29 December, mon

	736 mmHg		74%
	4.19 m/s		+14

29 December, Monday. day, 14°; night, 6°; rain

30 December, tue

	736 mmHg		76%
	4 m/s		+14

30 December, Tuesday. day, 15°; night, 6°; rain

31 December, wed

	736 mmHg		77%
	4.1 m/s		+14

31 December, Wednesday. day, 14°; night, 7°; partly cloudy

1 January, thu

	736 mmHg		76%
	3.7 m/s		+14

1 January, Thursday. day, 14°; night, 6°; clear

2 January, fri

	736 mmHg		75%
	3.8 m/s		+14

2 January, Friday. day, 14°; night, 6°; rain

3 January, sat

	736 mmHg		75%
	3.8 m/s		+14

3 January, Saturday. day, 15°; night, 6°; rain

Average data for 10 years

San Luis Obispo December

14

sunny days

7

days with precipitation

6

cloudy days

14 sunny days; 7 days with precipitation; 6 cloudy days;

75

%

air humidity

2.3

m/s

WindSE

70

mm of precipitation

(18% of annual average)

+14

°C

Water temperature

air humidity 75%; 70 millimeters of precipitation (18% of annual average); Wind south-easterly 2.3 Meters per second; Water temperature +14°

Weather graphs for December

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

SE

E

SE

E

E

SE

SE

SE

E

SE

SE

SE

SE

SE

SE

E

E

E

SE

SE

SE

SE

E

E

SE

SE

SE

E

SE

SE

SE

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

Los Angeles
San Francisco
Sacramento
Oakland
Santa Monica
Beverly Hills
Monterey
San Jose
Santa Barbara

Cities with similar weather in December

Antalya
Barcelona
Tunis
Belek
Marmaris
Athens
Lisbon
Heraklion
Sousse

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

December in San Luis Obispo is the coldest month of the year. In December, the weather in San Luis Obispo is typically warm. Average daily high temperature in December is about 15 degrees above zero. On average, San Luis Obispo has 14 sunny, 7 rainy, 7 partly cloudy, and 3 cloudy days in December. The rains are usually moderate. December as well as January, February, and March is considered the most uncomfortable time to visit San Luis Obispo.

Links

Help Terms of use Contact us

For partners

Advertisement Yandex.Weather API

Weather forecasts

Hourly forecast Detailed 10 day forecast Monthly forecast Weather map Magnetic storms

Download app

English

English
Русский

Source data: Yandex.Traffic, Roshydromet FSBI "CAO", NOAA, © OpenStreetMap

© 2017–2025 YANDEX LLC