Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January records an average high-temperature of a still comfortable 64.4°F (18°C), indicating a minor variation from the preceding month. January generally records an average low-temperature of 53.6°F (12°C).Humidity
The average relative humidity in January is 60%.Rainfall
In Newport Beach, in January, during 4.2 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 50.7 rainfall days, and 3.74" (95mm) of precipitation is accumulated.Ocean temperature
January is the month with the coldest seawater, with an average ocean temperature of 58.5°F (14.7°C).Note: Unprotected swimming in 58.5°F (14.7°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.
Daylight
In Newport Beach, the average length of the day in January 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, sunrise is at 6:48 am and sunset at 5:21 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. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In January, a daily maximum UV index of 4 leads to the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature?
What is the average humidity in January?
How much does it rain in January?
When is the ocean coldest?
How cold is the water in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Newport Beach have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
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).
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).
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).
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%).
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").
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).
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).
Average daylight in January /
Average sunshine in January
Newport Beach, 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: 10h and 0min).
- Average sunshine in January: 6h and 4min
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).
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).
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).
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).
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).
Newport Beach, California, USA
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