January weather forecast
Big Sur, CA

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Weather in January

January brings the winter chill to Big Sur, offering temperatures destined to keep you cozy under a warm blanket. Moving from December, the fluctuation in the mercury level is negligible, retaining nearly identical temperatures. Among the most noticeable adornments of Big Sur's January weather is the rather pronounced precipitation. During this month, Big Sur receives the second-highest rainfall of the year at 2.09" (53mm) with 9.1 wet days. Look forward to a mesmerizing winter wonderland as rainfall enhances the region's natural charm, creating picturesque views that inspire awe in all visitors.

Temperature

Big Sur notes an average high-temperature of a still moderate 58.5°F (14.7°C) in January, displaying minor variation from December. In Big Sur, January nights witness a steady temperature drop to a frosty 47.7°F (8.7°C).

Humidity

In Big Sur, the average relative humidity in January is 72%.

Rainfall

In Big Sur, during January, the rain falls for 9.1 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 70 rainfall days, and 11.93" (303mm) of precipitation is accumulated.

Ocean temperature

In Big Sur, in January, the average water temperature is 55.4°F (13°C).
Note: Diving into 55.4°F (13°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

The average length of the day in January is 10h and 1min.
On the first day of the month, sunrise is at 7:18 am and sunset at 5:03 pm. On the last day of January, in Big Sur, sunrise is at 7:09 am and sunset at 5:32 pm PST.

Sunshine

In Big Sur, the average sunshine in January is 6.3h.

UV index

In January, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: An average UV index of 4 in January transforms into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the usual temperature for Big Sur in January?

In Big Sur, in January, the average high-temperature is 58.5°F (14.7°C), and the average low-temperature is 47.7°F (8.7°C).

What is the average humidity in January in Big Sur?

In January, the average relative humidity in Big Sur, California, is 72%.

How much does it rain in Big Sur in January?

In Big Sur, California, during January, the rain falls for 9.1 days and regularly aggregates up to 2.09" (53mm) of precipitation.

How cold is the water in January in Big Sur?

In Big Sur, in January, the average water temperature is 55.4°F (13°C). Swimming in 55.4°F (13°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Big Sur have in January?

In January, the average day length in Big Sur is 10h and 1min.

When is the sunrise / sunset in January in Big Sur?

On the first day of January, sunrise is at 7:18 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:32 pm PST.

How long on average sun shines in January in Big Sur?

In Big Sur, California, the average sunshine duration in January is 6.3h.

What is the UV index intensity in January in Big Sur?

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

Average temperature in January
Big Sur, CA

Average temperature in January - Big Sur, CA
  • Average high temperature in January: 58.5°F

The warmest month (with the highest average high temperature) is September (69.6°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in January: 47.7°F

The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).

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Average pressure in January
Big Sur, CA

Average pressure in January - Big Sur, CA
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.93"Hg).

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Average wind speed in January
Big Sur, CA

Average wind speed in January - Big Sur, CA
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in January
Big Sur, CA

Average humidity in January - Big Sur, CA
  • Average humidity in January: 72%

The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is November (70%).

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Average rainfall in January
Big Sur, CA

Average rainfall in January - Big Sur, CA
  • Average rainfall in January: 2.09"

The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in January
Big Sur, CA

Average rainfall days in January - Big Sur, CA
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (1.3 days).

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Average sea temperature in January
Big Sur, CA

Average sea temperature in January - Big Sur, CA
  • Average sea temperature in January: 55°F

The best months for swimming (with the highest average sea temperature) are August, September and October (59°F).
The coldest months (with the lowest average sea temperature) are March, April and May (54°F).

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Average daylight in January /
Average sunshine in January
Big Sur, CA

Average daylight in January / Average sunshine in January - Big Sur, CA
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in January: 6h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in January
Big Sur, CA

Average sunshine days in January - Big Sur, CA
  • Average sunshine days in January: 20.2 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index in January
Big Sur, CA

Average UV index in January - Big Sur, CA
  • Average UV index in January: 4

The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Big Sur, CA

Average cloud cover in January - Big Sur, CA
  • Average cloud cover in January: 30

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 13).

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Average visibility in January
Big Sur, CA

Average visibility in January - Big Sur, 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).

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Big Sur, California, USA

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