January weather forecastCarlsbad, CA
January
Weather in January
With slightly cooler days extending from December, January in Carlsbad experiences colder yet comfortable weather. The long hours of daylight keep the city vibrant well past early evening. A gentle winter breeze adds a crisp touch to the overall atmosphere. Noticeably, the rainfall measures average 1.26" (32mm), rendering the wettest month of the year. Additionally, residents are advised to carry a light jacket for those chillier days.Temperature
The advent of January sees the average high-temperature at a still comfortable 64°F (17.8°C), subtly shifted from December's 62.4°F (16.9°C). Nighttime temperature lowers to an average of 50.7°F (10.4°C) in January.Humidity
The average relative humidity in January in Carlsbad is 61%.Rainfall
In Carlsbad, in January, during 6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Carlsbad, California, during the entire year, the rain falls for 68.2 days and collects up to 9.49" (241mm) of precipitation.Ocean temperature
January and February, with an average ocean temperature of 58.6°F (14.8°C), are months with the coldest seawater in Carlsbad.Note: One needs to be cautious in 58.6°F (14.8°C) waters. 55.4°F (13°C) is already forbidding, but sub14°F (-10°C) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
In Carlsbad, the average length of the day in January is 10h and 16min.On the first day of the month, sunrise is at 6:52 am and sunset at 4:53 pm. On the last day of January, sunrise is at 6:45 am and sunset at 5:20 pm PST.
Sunshine
The average sunshine in January is 6.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during January translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Carlsbad, CA
- Average high temperature in January: 64°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in January: 50.7°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).
Average pressure in January
Carlsbad, CA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in January
Carlsbad, CA
- Average wind speed in January: 5.1mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in January
Carlsbad, CA
- Average humidity in January: 61%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (60%).
Average rainfall in January
Carlsbad, CA
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in January
Carlsbad, CA
- Average rainfall days in January: 6 days
The month with the highest number of rainy days is March (8 days).
The month with the least rainy days is June (2.7 days).
Average sea temperature in January
Carlsbad, CA
- Average sea temperature in January: 58.7°F
The best month for swimming (with the highest average sea temperature) is August (68°F).
The coldest months (with the lowest average sea temperature) are January and February (58.7°F).
Average daylight in January /
Average sunshine in January
Carlsbad, CA
- Average daylight in January: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 6h and 48min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in January
Carlsbad, CA
- Average sunshine days in January: 23.8 days
The month with the most sunshine days is October (24.2 days).
The month with the least sunshine days is February (20 days).
Average UV index in January
Carlsbad, 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
Carlsbad, CA
- Average cloud cover in January: 22
The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in January
Carlsbad, 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).
