January weather forecast
Newport Beach, CA

The stunning coastal village of Corona Del Mar, in Newport Beach, California
The stunning coastal village of Corona Del Mar, in Newport Beach, California

Weather in January

January, the same as December, is another enjoyable winter month in Newport Beach, California, with an average temperature varying between 64.4°F (18°C) and 53.6°F (12°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still enjoyable 64.4°F (18°C). The average low-temperature, in Newport Beach, is 53.6°F (12°C).

Humidity

In January, the average relative humidity in Newport Beach is 60%.

Rainfall

In Newport Beach, during January, the rain falls for 4.2 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Newport Beach, during the entire year, the rain falls for 50.7 days and collects up to 3.74" (95mm) of precipitation.

Ocean temperature

With an average ocean temperature of 58.5°F (14.7°C), January is the month with the coldest seawater in Newport Beach.
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In January, the average length of the day is 10h and 13min.
On the first day of the month, sunrise is at 6:56 am and sunset at 4:54 pm. On the last day of January, in Newport Beach, sunrise is at 6:48 am and sunset at 5:22 pm PST.

Sunshine

In Newport Beach, the average sunshine in January is 6.7h.

UV index

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Newport Beach. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in January interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in January in Newport Beach?

In Newport Beach, California, the average relative humidity in January is 60%.

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

In January, in Newport Beach, California, the rain falls for 4.2 days. Throughout January, 0.39" (10mm) of precipitation is accumulated.

What is the month with the coldest ocean in Newport Beach?

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

What is the water 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.

What is the average length of the day in January in Newport Beach?

The average day length in January in Newport Beach is 10h and 13min.

When is the sunrise / sunset in January in Newport Beach?

On the first day of January in Newport Beach, sunrise is at 6:56 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 5:22 pm PST.

How many hours of sunshine does Newport Beach have in January?

The average sunshine duration in January in Newport Beach, California, is 6.7h.

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

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

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

In Newport Beach, 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 Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Newport Beach, CA

Average temperature in January - Newport Beach, CA
  • Average high temperature in January: 64.4°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in January: 53.6°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (52.3°F).

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Average pressure in January
Newport Beach, CA

Average pressure in January - Newport Beach, CA
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).

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Average wind speed in January
Newport Beach, CA

Average wind speed in January - Newport Beach, CA
  • Average wind speed in January: 5.5mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is October (5.2mph).

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Average humidity in January
Newport Beach, CA

Average humidity in January - Newport Beach, CA
  • Average humidity in January: 60%

The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (59%).

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Average rainfall in January
Newport Beach, CA

Average rainfall in January - Newport Beach, CA
  • Average rainfall in January: 0.39"

The wettest month (with the highest rainfall) is December (0.79").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in January
Newport Beach, CA

Average rainfall days in January - Newport Beach, CA
  • Average rainfall days in January: 4.2 days

The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is June (1.6 days).

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Average sea temperature in January
Newport Beach, CA

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

The 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).

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Average daylight in January /
Average sunshine in January
Newport Beach, CA

Average daylight in January / Average sunshine in January - Newport Beach, CA
  • Average daylight in January: 10h and 13min

The month with the longest days is June (Average daylight: 14h and 21min).
The month with the shortest days is December (Average daylight: 9h and 58min).

  • Average sunshine in January: 6h and 42min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in January
Newport Beach, CA

Average sunshine days in January - Newport Beach, CA
  • Average sunshine days in January: 25.8 days

The month with the most sunshine days is June (26.5 days).
The month with the least sunshine days is February (20.5 days).

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Average UV index in January
Newport Beach, CA

Average UV index in January - Newport Beach, CA
  • Average UV index in January: 4

The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in January
Newport Beach, CA

Average cloud cover in January - Newport Beach, CA
  • Average cloud cover in January: 22

The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in January
Newport Beach, CA

Average visibility in January - Newport Beach, 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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