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January Weather in Rancho Santa Margarita, United States

Last updated: June 24, 2025

In Rancho Santa Margarita, United States, the average temperature in January hovers around 13°C (55°F). Expect minimum temperatures to drop to 0°C (33°F), with highs reaching up to 31°C (87°F). During this month, you can anticipate approximately 84 mm (3.3 in) of precipitation spread over 6 days, while the average humidity lingers at a comfortable 74%.

January Temperature in Rancho Santa Margarita

In January in Rancho Santa Margarita, the average temperature is 13°C (55°F). The maximum can reach 31°C (87°F), and the minimum can be as low as 0°C (33°F). This variety in temperature makes Rancho Santa Margarita an ideal destination for travelers looking to experience both warm and cool weather.

January Weather in Rancho Santa Margarita: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rancho Santa Margarita, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rancho Santa Margarita, January typically has an average temperature of 13°C (55°F), with highs reaching up to 31°C (87°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec555557636571777775696255
Data source: Temperature data for Rancho Santa Margarita generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Rancho Santa Margarita

In Rancho Santa Margarita in January, the precipitation amount is 84 mm (3.3 in) accumulated over the course of 6 days.

January Precipitation Trends in Rancho Santa Margarita

The chart displays monthly precipitation patterns in Rancho Santa Margarita, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Rancho Santa Margarita, January typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec84789436212224133485
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Rancho Santa Margarita

In Rancho Santa Margarita in January, humidity is 74%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and demanding frequent breaks in shaded areas.

January Average Humidity in Rancho Santa Margarita

This chart illustrates the average monthly humidity levels in Rancho Santa Margarita, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Rancho Santa Margarita is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%79%75%71%70%72%73%69%68%67%68%71%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Rancho Santa Margarita

In Rancho Santa Margarita in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Rancho Santa Margarita for better planning.

Maximum UV Index Levels in Rancho Santa Margarita for January

The chart shows the monthly maximum UV Index (UVI) for Rancho Santa Margarita in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Rancho Santa Margarita typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111010754
Data source: Rancho Santa Margarita January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How January Weather in Rancho Santa Margarita Compares to Other Months

Weather in Rancho Santa Margarita varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Rancho Santa Margarita, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rancho Santa Margarita, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)84 mm (3.3 inches)74%moderate
February Weather13°C (55°F)78 mm (3.1 inches)79%high
March Weather14°C (58°F)94 mm (3.7 inches)75%very high
April Weather17°C (63°F)36 mm (1.4 inches)70%very high
May Weather18°C (65°F)21 mm (0.8 inches)70%extreme
June Weather21°C (71°F)2 mm (0.1 inches)72%extreme
July Weather25°C (77°F)2 mm (0.1 inches)73%extreme
August Weather25°C (78°F)2 mm (0.1 inches)69%very high
September Weather24°C (75°F)4 mm (0.2 inches)68%very high
October Weather20°C (69°F)13 mm (0.5 inches)67%high
November Weather17°C (62°F)34 mm (1.3 inches)68%moderate
December Weather13°C (55°F)85 mm (3.3 inches)71%moderate

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