January weather forecast
Rancho Santa Margarita, CA

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Weather in January

January, like December, in Rancho Santa Margarita, California, is another refreshing winter month, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 65.5°F (18.6°C).

Temperature

January's arrival brings an average high-temperature of a still enjoyable 65.5°F (18.6°C), slightly deviating from December's 63°F (17.2°C). The average low-temperature in Rancho Santa Margarita, California, during January nights is a chilly 49.6°F (9.8°C).

Humidity

The average relative humidity in January is 58%.

Rainfall

In Rancho Santa Margarita, California, during January, the rain falls for 5.3 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, in Rancho Santa Margarita, California, there are 64.2 rainfall days, and 5.79" (147mm) of precipitation is accumulated.

Daylight

In January, the average length of the day is 10h and 13min.
On the first day of the month, sunrise is at 6:54 am and sunset at 4:52 pm. On the last day of January, sunrise is at 6:47 am and sunset at 5:20 pm PST.

Sunshine

The average sunshine in January in Rancho Santa Margarita is 6.7h.

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 estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 4 during January translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What is the temperature in January in Rancho Santa Margarita?

In January, in Rancho Santa Margarita, the average high-temperature is 65.5°F (18.6°C), and the average low-temperature is 49.6°F (9.8°C).

What is the average humidity in January in Rancho Santa Margarita?

In Rancho Santa Margarita, California, the average relative humidity in January is 58%.

How much does it rain in Rancho Santa Margarita in January?

In Rancho Santa Margarita, California, in January, it is raining for 5.3 days, with typically 0.63" (16mm) of accumulated precipitation.

How many hours of daylight does Rancho Santa Margarita have in January?

In Rancho Santa Margarita, California, the average day length in January is 10h and 13min.

What time are sunrise and sunset in January in Rancho Santa Margarita?

In January, on the first day of the month, sunrise is at 6:54 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 5:20 pm PST.

How long on average sun shines in January in Rancho Santa Margarita?

The average sunshine duration in January in Rancho Santa Margarita is 6.7h.

What are the months with the lowest UV index in Rancho Santa Margarita?

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Rancho Santa Margarita, California.

What is the UV index intensity in January in Rancho Santa Margarita?

In January, the average daily maximum UV index in Rancho Santa Margarita is 4. A UV Index estimate of 3 to 5 represents 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
Rancho Santa Margarita, CA

Average temperature in January - Rancho Santa Margarita, CA
  • Average high temperature in January: 65.5°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (63°F).

  • Average low temperature in January: 49.6°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 (48.9°F).

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Average pressure in January
Rancho Santa Margarita, CA

Average pressure in January - Rancho Santa Margarita, CA
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).

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Average wind speed in January
Rancho Santa Margarita, CA

Average wind speed in January - Rancho Santa Margarita, 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 August (4.5mph).

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Average humidity in January
Rancho Santa Margarita, CA

Average humidity in January - Rancho Santa Margarita, CA
  • Average humidity in January: 58%

The months with the highest relative humidity are May and June (70%).
The month with the lowest relative humidity is November (56%).

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Average rainfall in January
Rancho Santa Margarita, CA

Average rainfall in January - Rancho Santa Margarita, CA
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is December (1.02").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in January
Rancho Santa Margarita, CA

Average rainfall days in January - Rancho Santa Margarita, CA
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (1.9 days).

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Average daylight in January /
Average sunshine in January
Rancho Santa Margarita, CA

Average daylight in January / Average sunshine in January - Rancho Santa Margarita, 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 4min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in January
Rancho Santa Margarita, CA

Average sunshine days in January - Rancho Santa Margarita, CA
  • Average sunshine days in January: 24.3 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is February (19.8 days).

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Average UV index in January
Rancho Santa Margarita, CA

Average UV index in January - Rancho Santa Margarita, 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).

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Average cloud cover in January
Rancho Santa Margarita, CA

Average cloud cover in January - Rancho Santa Margarita, 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).

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Average visibility in January
Rancho Santa Margarita, CA

Average visibility in January - Rancho Santa Margarita, 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).

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Rancho Santa Margarita, California, USA

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