Climate and monthly weather forecast
Rancho Santa Margarita, CA

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Weather in January

January, the same as December, is another enjoyable winter month in Rancho Santa Margarita, California, with an average temperature fluctuating between 49.6°F (9.8°C) and 65.5°F (18.6°C). The arrival of January brings an average high-temperature of a still enjoyable 65.5°F (18.6°C), closely following the temperature pattern of December. Weather in January »

Weather in February

February, the last month of the winter in Rancho Santa Margarita, is another refreshing month, with an average temperature ranging between max 64°F (17.8°C) and min 48.9°F (9.4°C). Rancho Santa Margarita's average high-temperature in February is a still refreshing 64°F (17.8°C), indicating a subtle variation from January. Weather in February »

Weather in March

The first month of the spring, March, is still a refreshing month in Rancho Santa Margarita, California, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 50.4°F (10.2°C). With March's arrival, Rancho Santa Margarita's weather records an average high-temperature of a still enjoyable 66.2°F (19°C), marking little difference from February's 64°F (17.8°C). Weather in March »

Weather in April

April is an agreeable spring month in Rancho Santa Margarita, California, with an average temperature ranging between max 68.5°F (20.3°C) and min 52.7°F (11.5°C). April brings a marginal elevation to a pleasant 68.5°F (20.3°C) from March's 66.2°F (19°C) in Rancho Santa Margarita's average high-temperatures. Weather in April »

Weather in May

May, the last month of the spring in Rancho Santa Margarita, is another pleasant month, with an average temperature varying between 55.6°F (13.1°C) and 70.2°F (21.2°C). Rancho Santa Margarita sees the arrival of May with an average high-temperature of a still agreeable 70.2°F (21.2°C), indicating a subtle variation from April. Weather in May »

Weather in June

June, the first month of the summer in Rancho Santa Margarita, is a moderately hot month, with an average temperature ranging between max 74.3°F (23.5°C) and min 57.6°F (14.2°C). Rancho Santa Margarita experiences an average high-temperature of a moderately hot 74.3°F (23.5°C) with the onset of June, subtly varied from May's 70.2°F (21.2°C). Weather in June »

Weather in July

July, like June, in Rancho Santa Margarita, California, is another warm summer month, with an average temperature ranging between max 79.2°F (26.2°C) and min 62.8°F (17.1°C). The arrival of July sees a recorded average high-temperature of a still warm 79.2°F (26.2°C), showing little divergence from the previous month's conditions. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Rancho Santa Margarita, California, with an average temperature ranging between max 81.1°F (27.3°C) and min 64.2°F (17.9°C). Rancho Santa Margarita reaches its highest average temperatures in August, measuring 81.1°F (27.3°C) at the peak and 64.2°F (17.9°C) at the lowest. The average heat index in August is evaluated at 84.2°F (29°C). Weather in August »

Weather in September

September, the first month of the autumn in Rancho Santa Margarita, is also a moderately hot month, with an average temperature varying between 63.5°F (17.5°C) and 79.7°F (26.5°C). September's advent presents an average high-temperature of a still moderately hot 79.7°F (26.5°C), indicating a slight variation from the conditions of the previous month. Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Rancho Santa Margarita, California, with an average temperature varying between 60.1°F (15.6°C) and 75.2°F (24°C). The arrival of October marks a slight shift to an average high-temperature of a still moderately hot 75.2°F (24°C) from September's 79.7°F (26.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Rancho Santa Margarita, California, with an average temperature fluctuating between 54.7°F (12.6°C) and 69.4°F (20.8°C). The advent of November brings a slight shift in average high-temperature, moving from a warm 75.2°F (24°C) in October to an agreeable 69.4°F (20.8°C). Weather in November »

Weather in December

December, the first month of the winter in Rancho Santa Margarita, is still a refreshing month, with an average temperature ranging between min 49.8°F (9.9°C) and max 63°F (17.2°C). Rancho Santa Margarita reaches its lowest average temperatures in December, measuring 63°F (17.2°C) at the peak and 49.8°F (9.9°C) at the lowest. Weather in December »

Frequently asked questions

How many days does it rain in Rancho Santa Margarita?

In Rancho Santa Margarita, during the entire year, the rain falls for 64.2 days and collects up to 5.79" (147mm) of precipitation.

When is the lowest UV index?

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

When is Daylight Saving Time (DST) in Rancho Santa Margarita?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

What are the most humid months?

The months with the highest humidity in Rancho Santa Margarita, California, are May and June, with an average relative humidity of 70%.

What is the driest month in Rancho Santa Margarita?

June is the month with the least rainfall. Rain falls for 1.9 days and accumulates 0.08" (2mm) of precipitation.

When are the longest days?

The month with the longest days is June, with an average of 14h and 24min of daylight.

What are the months with the highest UV index?

June through September, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month?

The highest temperatures are recorded in August, with averages reaching a high of 81.1°F (27.3°C) and a low of 64.2°F (17.9°C).

What month has the most sunshine?

The month with the most sunshine is August, with an average of 12h of sunshine.

What is the least humid month?

The least humid month is November, with an average relative humidity of 56%.

What are the coldest months?

December is the month when Rancho Santa Margarita experiences its coldest temperatures, averaging a high of 63°F (17.2°C) and a low of 49.8°F (9.9°C).

What is the wettest month?

December is the month with the most rainfall. Rain falls for 6.7 days and accumulates 1.02" (26mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 6.6h of sunshine.

Average temperature
Rancho Santa Margarita, CA

Average temperature - Rancho Santa Margarita, CA

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).

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).

Average pressure
Rancho Santa Margarita, CA

Average pressure - Rancho Santa Margarita, CA

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).

Average wind speed
Rancho Santa Margarita, CA

Average wind speed - Rancho Santa Margarita, CA

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).

Average humidity
Rancho Santa Margarita, CA

Average humidity - Rancho Santa Margarita, CA

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

Average rainfall
Rancho Santa Margarita, CA

Average rainfall - Rancho Santa Margarita, CA

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

Average rainfall days
Rancho Santa Margarita, CA

Average rainfall days - Rancho Santa Margarita, CA

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).

Average daylight / Average sunshine
Rancho Santa Margarita, CA

Average daylight / Average sunshine - Rancho Santa Margarita, CA

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).

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).

Average sunshine days
Rancho Santa Margarita, CA

Average sunshine days - Rancho Santa Margarita, CA

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

Average UV index
Rancho Santa Margarita, CA

Average UV index - Rancho Santa Margarita, CA

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
Rancho Santa Margarita, CA

Average cloud cover - Rancho Santa Margarita, CA

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).

Average visibility
Rancho Santa Margarita, CA

Average visibility - Rancho Santa Margarita, CA

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).

Rancho Santa Margarita, California, USA

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