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January weather forecast in Castro Valley

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

29 December, sun

	764 mmHg		79%
	4.1 m/s		+12

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

30 December, mon

	764 mmHg		82%
	4.1 m/s		+12

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

31 December, tue

	764 mmHg		79%
	4.5 m/s		+12

31 December, Tuesday. day, 14°; night, 7°; overcast

1 January, wed

	764 mmHg		77%
	4.19 m/s		+11

1 January, Wednesday. day, 13°; night, 6°; clear

2 January, thu

	764 mmHg		79%
	3.7 m/s		+11

2 January, Thursday. day, 13°; night, 6°; rain

3 January, fri

	764 mmHg		81%
	3.8 m/s		+11

3 January, Friday. day, 13°; night, 6°; rain

4 January, sat

	764 mmHg		82%
	4.19 m/s		+11

4 January, Saturday. day, 14°; night, 7°; rain

5 January, sun

	765 mmHg		80%
	4.1 m/s		+11

5 January, Sunday. day, 13°; night, 6°; clear

6 January, mon

	766 mmHg		79%
	3.6 m/s		+11

6 January, Monday. day, 13°; night, 6°; partly cloudy

7 January, tue

	764 mmHg		81%
	4.19 m/s		+11

7 January, Tuesday. day, 14°; night, 6°; partly cloudy

8 January, wed

	764 mmHg		83%
	4 m/s		+11

8 January, Wednesday. day, 14°; night, 7°; overcast

9 January, thu

	764 mmHg		84%
	4.4 m/s		+11

9 January, Thursday. day, 14°; night, 8°; rain

10 January, fri

	764 mmHg		83%
	4.4 m/s		+11

10 January, Friday. day, 14°; night, 7°; overcast

11 January, sat

	764 mmHg		82%
	4.4 m/s		+11

11 January, Saturday. day, 14°; night, 7°; rain

12 January, sun

	765 mmHg		82%
	3.7 m/s		+12

12 January, Sunday. day, 14°; night, 7°; overcast

13 January, mon

	766 mmHg		78%
	3.9 m/s		+12

13 January, Monday. day, 14°; night, 7°; clear

14 January, tue

	766 mmHg		81%
	3.8 m/s		+12

14 January, Tuesday. day, 14°; night, 6°; overcast

15 January, wed

	765 mmHg		80%
	3.6 m/s		+12

15 January, Wednesday. day, 14°; night, 6°; partly cloudy

16 January, thu

	765 mmHg		77%
	4.19 m/s		+12

16 January, Thursday. day, 14°; night, 7°; clear

17 January, fri

	765 mmHg		79%
	3.8 m/s		+12

17 January, Friday. day, 14°; night, 7°; clear

18 January, sat

	765 mmHg		81%
	4 m/s		+12

18 January, Saturday. day, 15°; night, 7°; overcast

19 January, sun

	764 mmHg		80%
	4.4 m/s		+12

19 January, Sunday. day, 14°; night, 7°; partly cloudy

20 January, mon

	763 mmHg		79%
	4.3 m/s		+12

20 January, Monday. day, 14°; night, 7°; partly cloudy

21 January, tue

	763 mmHg		79%
	4.4 m/s		+11

21 January, Tuesday. day, 14°; night, 7°; rain

22 January, wed

	763 mmHg		77%
	4.4 m/s		+11

22 January, Wednesday. day, 14°; night, 8°; rain

23 January, thu

	764 mmHg		78%
	4.1 m/s		+11

23 January, Thursday. day, 14°; night, 7°; rain

24 January, fri

	764 mmHg		81%
	3.8 m/s		+11

24 January, Friday. day, 14°; night, 7°; rain

25 January, sat

	764 mmHg		81%
	4.1 m/s		+12

25 January, Saturday. day, 14°; night, 7°; clear

26 January, sun

	764 mmHg		81%
	4.19 m/s		+12

26 January, Sunday. day, 14°; night, 8°; rain

27 January, mon

	765 mmHg		80%
	4 m/s		+12

27 January, Monday. day, 15°; night, 7°; partly cloudy

28 January, tue

	766 mmHg		82%
	3.8 m/s		+12

28 January, Tuesday. day, 15°; night, 7°; clear

29 January, wed

	765 mmHg		83%
	3.7 m/s		+12

29 January, Wednesday. day, 15°; night, 7°; partly cloudy

30 January, thu

	765 mmHg		80%
	3.7 m/s		+12

30 January, Thursday. day, 15°; night, 7°; partly cloudy

31 January, fri

	764 mmHg		80%
	3.8 m/s		+12

31 January, Friday. day, 15°; night, 7°; partly cloudy

1 February, sat

	764 mmHg		78%
	4.19 m/s		+12

1 February, Saturday. day, 15°; night, 7°; partly cloudy

Average data for 10 years

Castro Valley January

7

sunny days

10

days with precipitation

11

cloudy days

7 sunny days; 10 days with precipitation; 11 cloudy days;

80

%

air humidity

2.3

m/s

WindS

100

mm of precipitation

(20% of annual average)

+12

°C

Water temperature

air humidity 80%; 100 millimeters of precipitation (20% of annual average); Wind southerly 2.3 Meters per second; Water temperature +12°

Weather graphs for January

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

S

SE

SE

SE

S

SE

S

S

S

SE

S

S

SE

SE

SE

SE

SE

SE

S

S

S

S

SE

S

S

S

S

S

S

S

S

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

San Francisco
Sacramento
Oakland
Redding
Monterey
San Jose
Reno
Stanford
San Luis Obispo

Cities with similar weather in January

Alanya
Side
Tunis
Belek
Marmaris
Paphos
Athens
Lisbon
Heraklion

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

January in Castro Valley is the rainiest, the cloudiest, and the coldest month of the year. In January, the weather in Castro Valley is typically warm. Average daily high temperature in January is about 14 degrees above zero. On average, Castro Valley has 10 rainy, 9 partly cloudy, 7 sunny, and 5 cloudy days in January. The rains are usually heavy. January as well as December is considered the most uncomfortable time to visit Castro Valley.

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