January weather forecast
San Fernando, CA

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Weather in January

January, the same as December, is another enjoyable winter month in San Fernando, California, with an average temperature ranging between max 63.1°F (17.3°C) and min 47.8°F (8.8°C).

Temperature

San Fernando's average high-temperature marks a still enjoyable 63.1°F (17.3°C) with the advent of January, closely mirroring that of the preceding month. San Fernando's average low-temperature for the month of January records at a chilly 47.8°F (8.8°C).

Humidity

In San Fernando, the average relative humidity in January is 52%.

Rainfall

In San Fernando, in January, it is raining for 4.7 days, with typically 1.46" (37mm) of accumulated precipitation. In San Fernando, during the entire year, the rain falls for 39.8 days and collects up to 7.52" (191mm) of precipitation.

Daylight

In San Fernando, the average length of the day in January is 10h and 10min.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:54 pm. On the last day of January, sunrise is at 6:51 am and sunset at 5:22 pm PST.

Sunshine

January, February and December, with an average of 6.8h of sunshine, are months with the least sunshine.

UV index

In January, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In January, the maximum UV index of 4 transforms into these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are January temperatures?

The average high-temperature and low-temperature during January are 63.1°F (17.3°C) and 47.8°F (8.8°C) respectively.

What is the average humidity in January?

In January, the average relative humidity is 52%.

How many days does it rain in January?

In San Fernando, in January, during 4.7 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How many hours of daylight does San Fernando have in January?

In January, the average day length is 10h and 10min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 6:59 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 5:22 pm PST.

What is the month with the least sunshine?

The months with the least sunshine are January, February and December, with an average of 6.8h of sunshine.

How many hours of sunshine does San Fernando have in January?

In San Fernando, the average sunshine duration in January is 6.8h.

What is the UV index reading in January?

The average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
San Fernando, CA

Average temperature in January - San Fernando, CA
  • Average high temperature in January: 63.1°F

The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in January: 47.8°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

Average pressure in January
San Fernando, CA

Average pressure in January - San Fernando, CA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in January
San Fernando, CA

Average wind speed in January - San Fernando, CA
  • Average wind speed in January: 6.2mph

The windiest months (with the highest average wind speed) are January and December (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in January
San Fernando, CA

Average humidity in January - San Fernando, CA
  • Average humidity in January: 52%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).

Average rainfall in January
San Fernando, CA

Average rainfall in January - San Fernando, CA
  • Average rainfall in January: 1.46"

The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").

Average rainfall days in January
San Fernando, CA

Average rainfall days in January - San Fernando, CA
  • Average rainfall days in January: 4.7 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).

Average daylight in January /
Average sunshine in January
San Fernando, CA

Average daylight in January / Average sunshine in January - San Fernando, CA
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in January: 6h and 5min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

Average sunshine days in January
San Fernando, CA

Average sunshine days in January - San Fernando, CA
  • Average sunshine days in January: 25.6 days

The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).

Average UV index in January
San Fernando, CA

Average UV index in January - San Fernando, CA
  • Average UV index in January: 4

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in January
San Fernando, CA

Average cloud cover in January - San Fernando, CA
  • Average cloud cover in January: 21

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).

Average visibility in January
San Fernando, CA

Average visibility in January - San Fernando, CA
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

San Fernando, California, USA

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