January weather forecastChula Vista, CA
January
Weather in January
Seasonal conditions cluster in January with a mixture of clear skies and rainfall. Around town, Chula Vista exemplifies mild winter weather typical of Southern California. Despite the lower temperatures, outdoor activities often persevere, only occasionally disrupted by the month's highest rainfall of 1.06" (27mm). Daylight is somewhat limited offering only 10.3 hours of visibility, but the city maintains its vibrant atmosphere. When compared to the upcoming warmer months, January represents a quieter yet still appealing time within the city.Temperature
The advent of January brings an average high-temperature of a still enjoyable 65.1°F (18.4°C), exhibiting minor difference from the previous month. An average low-temperature of 51.8°F (11°C) is anticipated throughout the nights in Chula Vista during January.Humidity
In Chula Vista, the average relative humidity in January is 59%.Rainfall
In Chula Vista, in January, it is raining for 4.7 days, with typically 0.55" (14mm) of accumulated precipitation. In Chula Vista, during the entire year, the rain falls for 51 days and collects up to 5.63" (143mm) of precipitation.Ocean temperature
In Chula Vista, the average seawater temperature in January is 59.4°F (15.2°C).Note: In water with a temperature of 59.4°F (15.2°C), most individuals do not find swimming enjoyable. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), breathing control becomes more difficult.
Daylight
In Chula Vista, the average length of the day in January is 10h and 17min.On the first day of the month, sunrise is at 6:50 am and sunset at 4:53 pm. On the last day of January, sunrise is at 6:43 am and sunset at 5:19 pm PST.
Sunshine
In January, the average sunshine in Chula Vista 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 of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 4 in January converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Chula Vista, CA
- Average high temperature in January: 65.1°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (63.7°F).
- Average low temperature in January: 51.8°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is February (51.1°F).
Average pressure in January
Chula Vista, 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
Chula Vista, CA
- Average wind speed in January: 5.2mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is October (5mph).
Average humidity in January
Chula Vista, CA
- Average humidity in January: 59%
The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (58%).
Average rainfall in January
Chula Vista, CA
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is February (1.1").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in January
Chula Vista, CA
- Average rainfall days in January: 4.7 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.7 days).
Average sea temperature in January
Chula Vista, CA
- Average sea temperature in January: 59.2°F
The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).
Average daylight in January /
Average sunshine in January
Chula Vista, 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 month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in January
Chula Vista, CA
- Average sunshine days in January: 25.1 days
The month with the most sunshine days is June (27.2 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in January
Chula Vista, CA
- Average UV index in January: 4
The months with the highest UV index are June, 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
Chula Vista, CA
- Average cloud cover in January: 20
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in January
Chula Vista, 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).
