January weather forecast and climate
Newport Beach, CA

A bird
A bird's eye view of the stunning coastal village of Corona Del Mar, in Newport Beach, California, with cruise boats on the clear blue waters and beaches around the village
January, like December, in Newport Beach, California, is another comfortable winter month, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 49.8°F (9.9°C).

Temperature

The average high-temperature, is 63.3°F (17.4°C), while the average low-temperature is 49.8°F (9.9°C).

Rainfall

In Newport Beach, during January, the rain falls for 5 days and regularly aggregates up to 2.1" (52.6mm) of precipitation. In Newport Beach, during the entire year, the rain falls for 32 days and collects up to 10.6" (269.8mm) of precipitation.

Ocean temperature

With an average ocean temperature of 58.5°F (14.7°C), January is the month with the coldest seawater. Swimming in 58.5°F (14.7°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.

Daylight

In Newport Beach, the average length of the day in January is 10.2h.

Sunshine

Months with the least sunshine in Newport Beach are January, November and December, with an average of 7h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Newport Beach. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in January in Newport Beach?

In January, the average high-temperature is 63.3°F (17.4°C), and the average low-temperature is 49.8°F (9.9°C).

How many days does it rain in January in Newport Beach?

In Newport Beach, during January, the rain falls for 5 days and regularly aggregates up to 2.1" (52.6mm) of precipitation.

What month is the ocean coldest in Newport Beach?

January is the month with the coldest seawater in Newport Beach, with an average ocean temperature of 58.5°F (14.7°C). Swimming in 58.5°F (14.7°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.

What is the ocean temperature in January in Newport Beach?

In Newport Beach, in January, the average water temperature is 58.5°F (14.7°C). Swimming in 58.5°F (14.7°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 Newport Beach have in January?

The average length of the day in January in Newport Beach is 10.2h.

What is the month with the least sunshine in Newport Beach?

Months with the least sunshine in Newport Beach, California, are January, November and December, with an average of 7h of sunshine.

How long on average sun shines in January in Newport Beach?

In January, the average sunshine in Newport Beach, California, is 7h.

What are the months with the lowest UV index in Newport Beach?

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Newport Beach.

What is the UV index intensity in January in Newport Beach?

In Newport Beach, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in January - Newport Beach, CA
  • Average high temperature in January: 63.3°F

The warmest month (with the highest average high temperature) is August (72.2°F).
The month with the lowest average high temperature is March (62.7°F).

  • Average low temperature in January: 49.8°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 (49.3°F).

Average rainfall in January - Newport Beach, CA
  • Average rainfall in January: 2.1"

The wettest month (with the highest rainfall) is February (2.6").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in January - Newport Beach, CA
  • Average rainfall days in January: 5 days

The month with the highest number of rainy days is March (6 days).
Months with the lowest number of rainy days are June, July and August (0 days).

Average sea temperature in January - Newport Beach, CA
  • Average sea temperature in January: 58.5°F

Best months for swimming (with the highest average sea temperature) are July and August (67.7°F).
The coldest month (with the lowest average sea temperature) is January (58.5°F).

Average daylight in January / Average sunshine in January - Newport Beach, CA
  • Average daylight in January: 10.2h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in January: 7h

Months with most sunshine are July and August (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 7).

Average UV index in January - Newport Beach, CA
  • Average UV index in January: 3

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).

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