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 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
With January's arrival, Irvine notes an average high-temperature of a still enjoyable 64.9°F (18.3°C), closely following the trend of the preceding month. Irvine's average low-temperature in January is measured at a fresh 51.8°F (11°C).Humidity
In Irvine, the average relative humidity in January is 58%.Rainfall
In Irvine, in January, it is raining for 5.4 days, with typically 1.14" (29mm) of accumulated precipitation. In Irvine, during the entire year, the rain falls for 63.7 days and collects up to 7.91" (201mm) of precipitation.Daylight
The average length of the day in January is 10h and 13min.On the first day of January in Irvine, California, 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
In January, the average sunshine in Irvine 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 vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the UV index of 4 transforms into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What is the temperature in January in Irvine?
What is the average humidity in January in Irvine?
How much does it rain in Irvine in January?
How many hours of daylight does Irvine have in January?
When are sunrise and sunset in January in Irvine?
How long on average sun shines in January in Irvine?
When is the lowest UV index in Irvine?
What is the UV index intensity in January in Irvine?
Average temperature in January
Irvine, CA
- Average high temperature in January: 64.9°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in January: 51.8°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 (50.5°F).
Average pressure in January
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
Irvine, CA
- Average wind speed in January: 5.2mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (4.8mph).
Average humidity in January
Irvine, CA
- Average humidity in January: 58%
The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (56%).
Average rainfall in January
Irvine, CA
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in January
Irvine, CA
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is March (7.9 days).
The month with the least rainy days is June (2.2 days).
Average daylight in January /
Average sunshine in January
Irvine, 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 5min
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
Irvine, CA
- Average sunshine days in January: 24.5 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (19.7 days).
Average UV index in January
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
Irvine, CA
- Average cloud cover in January: 21
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in January
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).
Irvine, California, USA
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