January weather forecastEast Irvine, CA
January
Weather in January
January, the same as December, is another comfortable winter month in East Irvine, California, with an average temperature ranging between max 65.1°F (18.4°C) and min 50.7°F (10.4°C).Temperature
The commencement of January records an average high-temperature of a still comfortable 65.1°F (18.4°C), barely varying from December's 63.1°F (17.3°C). East Irvine experiences a consistent average temperature of 50.7°F (10.4°C) throughout the nights in January.Humidity
The average relative humidity in January is 57%.Rainfall
In East Irvine, California, in January, it is raining for 6.1 days, with typically 1.42" (36mm) of accumulated precipitation. In East Irvine, during the entire year, the rain falls for 65.2 days and collects up to 9.17" (233mm) of precipitation.Daylight
The average length of the day in January is 10h and 13min.On the first day of January, sunrise is at 6:55 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 6:48 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 value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 in January translates into these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
East Irvine, CA
- Average high temperature in January: 65.1°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in January: 50.7°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).
Average pressure in January
East Irvine, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
East Irvine, CA
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in January
East Irvine, CA
- Average humidity in January: 57%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (55%).
Average rainfall in January
East Irvine, CA
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in January
East Irvine, CA
- Average rainfall days in January: 6.1 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.1 days).
Average daylight in January /
Average sunshine in January
East Irvine, CA
- Average daylight in January: 10h and 12min
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 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
East Irvine, CA
- Average sunshine days in January: 23.4 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is February (19.6 days).
Average UV index in January
East Irvine, 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
East Irvine, 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 6).
Average visibility in January
East Irvine, 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).





