January weather forecast
Aliso Viejo, CA

englishespañol中文
Share

Weather in January

January, the same as December, is another refreshing winter month in Aliso Viejo, California, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 50.5°F (10.3°C).

Temperature

The initiation of January sees an average high-temperature of a still enjoyable 64.9°F (18.3°C), showing minor variations from the previous month. Throughout January, an average low-temperature of 50.5°F (10.3°C) is expected in Aliso Viejo.

Humidity

In January, the average relative humidity is 59%.

Rainfall

In January, the rain falls for 5.4 days. Throughout January, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Aliso Viejo, there are 66.3 rainfall days, and 5.67" (144mm) of precipitation is accumulated.

Daylight

In January, the average length of the day is 10h and 14min.
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 6:47 am and sunset at 5:20 pm PST.

Sunshine

In Aliso Viejo, the average sunshine in January is 6.8h.

UV index

The months with the lowest UV index in Aliso Viejo 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 rays for the ordinary person.
Note: The daily maximum UV index of 4 in January interprets into the following advice:
Guard yourself - Avoiding sunburn is suggested. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Boost your sun resistance with garments that are densely woven yet spacious.
[Resources]

Frequently asked questions

What is the average January temperature in Aliso Viejo?

The average high-temperature, in January, in Aliso Viejo, is 64.9°F (18.3°C), while the average low-temperature is 50.5°F (10.3°C).

What is the average humidity in January in Aliso Viejo?

In Aliso Viejo, California, the average relative humidity in January is 59%.

How much does it rain in Aliso Viejo in January?

In Aliso Viejo, in January, during 5.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How many hours of daylight does Aliso Viejo have in January?

In January, the average day length is 10h and 14min.

When are sunrise and sunset in January in Aliso Viejo?

In January, on the first day of the month, sunrise is at 6:55 am and sunset at 4:53 pm. On the last day of the month, in Aliso Viejo, California, sunrise is at 6:47 am and sunset at 5:20 pm PST.

How long on average sun shines in January in Aliso Viejo?

The average sunshine duration in January in Aliso Viejo, California, is 6.8h.

What is the month with the lowest UV index in Aliso Viejo?

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Aliso Viejo.

How high is the UV index in January in Aliso Viejo?

The average daily maximum UV index in January in Aliso Viejo is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Aliso Viejo, CA

Average temperature in January - Aliso Viejo, CA
  • Average high temperature in January: 64.9°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in January: 50.5°F

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

[Resources]

Average pressure in January
Aliso Viejo, CA

Average pressure in January - Aliso Viejo, CA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

[Resources]

Average wind speed in January
Aliso Viejo, CA

Average wind speed in January - Aliso Viejo, CA
  • Average wind speed in January: 5mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September and October (4.7mph).

[Resources]

Average humidity in January
Aliso Viejo, CA

Average humidity in January - Aliso Viejo, 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 (56%).

[Resources]

Average rainfall in January
Aliso Viejo, CA

Average rainfall in January - Aliso Viejo, CA
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0.08").

[Resources]

Average rainfall days in January
Aliso Viejo, CA

Average rainfall days in January - Aliso Viejo, CA
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (2.6 days).

[Resources]

Average daylight in January /
Average sunshine in January
Aliso Viejo, CA

Average daylight in January / Average sunshine in January - Aliso Viejo, CA
  • Average daylight in January: 10h and 1min

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 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).

[Resources]

Average sunshine days in January
Aliso Viejo, CA

Average sunshine days in January - Aliso Viejo, CA
  • Average sunshine days in January: 24.1 days

The month with the most sunshine days is January (24.1 days).
The month with the least sunshine days is February (19.6 days).

[Resources]

Average UV index in January
Aliso Viejo, CA

Average UV index in January - Aliso Viejo, 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).

[Resources]

Average cloud cover in January
Aliso Viejo, CA

Average cloud cover in January - Aliso Viejo, CA
  • Average cloud cover in January: 22

The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).

[Resources]

Average visibility in January
Aliso Viejo, CA

Average visibility in January - Aliso Viejo, 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).

[Resources]

Aliso Viejo, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location