Climate and monthly weather forecast
San Juan Capistrano, CA

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Weather in January

January, the same as December, is another refreshing winter month in San Juan Capistrano, California, with an average temperature varying between 51.3°F (10.7°C) and 64.2°F (17.9°C). The transition from December to January sees average high-temperatures adjusting to a still refreshing 64.2°F (17.9°C), from a not significantly different 62.4°F (16.9°C). Weather in January »

Weather in February

The last month of the winter, February, is also an enjoyable month in San Juan Capistrano, California, with an average temperature fluctuating between 63.1°F (17.3°C) and 50°F (10°C). San Juan Capistrano indicates an average high-temperature of a still enjoyable 63.1°F (17.3°C) in February, showing minor variation from January's 64.2°F (17.9°C). Weather in February »

Weather in March

March, the first month of the spring in San Juan Capistrano, is still a comfortable month, with an average temperature fluctuating between 51.1°F (10.6°C) and 64.8°F (18.2°C). San Juan Capistrano's weather in March indicates an average high-temperature of a still comfortable 64.8°F (18.2°C), nearly consistent with the 63.1°F (17.3°C) of February. Weather in March »

Weather in April

April, like March, in San Juan Capistrano, California, is another enjoyable spring month, with an average temperature varying between 66.4°F (19.1°C) and 52.9°F (11.6°C). San Juan Capistrano, California, experiences a subtle adjustment in high-temperatures to a still comfortable 66.4°F (19.1°C) with the onset of April, maintaining near parity with March's 64.8°F (18.2°C). Weather in April »

Weather in May

The last month of the spring, May, is also an enjoyable month in San Juan Capistrano, California, with an average temperature fluctuating between 55°F (12.8°C) and 67.6°F (19.8°C). The transition from April to May sees average high-temperatures adjusting to a still enjoyable 67.6°F (19.8°C), from a not significantly different 66.4°F (19.1°C). Weather in May »

Weather in June

June, the first month of the summer in San Juan Capistrano, is a pleasant month, with an average temperature ranging between max 71.2°F (21.8°C) and min 57.7°F (14.3°C). June notes an average high-temperature of an agreeable 71.2°F (21.8°C), subtly differing from May's 67.6°F (19.8°C). Weather in June »

Weather in July

July in San Juan Capistrano, California, is a moderately hot summer month, with an average temperature fluctuating between 61.9°F (16.6°C) and 75.4°F (24.1°C). In July, San Juan Capistrano experiences a minor shift in meteorological conditions with average high-temperatures marked at a warm 75.4°F (24.1°C), closely mirroring the climate in June. Weather in July »

Weather in August

August, the last month of the summer in San Juan Capistrano, is also a moderately hot month, with an average temperature ranging between min 63.3°F (17.4°C) and max 76.8°F (24.9°C). San Juan Capistrano's transition from July to August introduces an average high-temperature of a still moderately hot 76.8°F (24.9°C), marking an insignificant variation from the 75.4°F (24.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in San Juan Capistrano, California, with an average temperature fluctuating between 63.1°F (17.3°C) and 77.4°F (25.2°C). In San Juan Capistrano, September is identified by the highest average temperatures, reaching a peak of 77.4°F (25.2°C) and a low of 63.1°F (17.3°C). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in San Juan Capistrano, California, with an average temperature ranging between min 60.3°F (15.7°C) and max 73.2°F (22.9°C). The initiation of October records an average high-temperature of a pleasant 73.2°F (22.9°C), displaying a near consistency with the previous month. Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in San Juan Capistrano, California, with an average temperature fluctuating between 68.7°F (20.4°C) and 55.6°F (13.1°C). In the transition from October to November, San Juan Capistrano reports an average high-temperature of a still agreeable 68.7°F (20.4°C), indicating a close resemblance to the prior month. Weather in November »

Weather in December

The first month of the winter, December, is still a refreshing month in San Juan Capistrano, California, with an average temperature fluctuating between 50.5°F (10.3°C) and 62.4°F (16.9°C). San Juan Capistrano's temperature records reveal December as the coldest month, marked by average highs of 62.4°F (16.9°C) and lows of 50.5°F (10.3°C). Weather in December »
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Frequently asked questions

How many days does it rain in San Juan Capistrano?

In San Juan Capistrano, during the entire year, the rain falls for 69 days and collects up to 9.09" (231mm) of precipitation.

What are the months with the lowest UV index in San Juan Capistrano?

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

When is Daylight Saving Time (DST) in San Juan Capistrano?

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 is the most humid month in San Juan Capistrano?

With an average relative humidity of 74%, June is the most humid month.

What is the driest month in San Juan Capistrano?

The month with the least rainfall is June, when the rain falls for 3 days and typically collects 0.12" (3mm) of precipitation.

When are the longest days in San Juan Capistrano?

With an average of 14h and 18min of daylight, June has the longest days of the year.

What is the month with the highest UV index in San Juan Capistrano?

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

What month has the most sunshine in San Juan Capistrano?

The month with the most sunshine is August, with an average of 11.9h of sunshine.

What part of the year is the hottest in San Juan Capistrano?

San Juan Capistrano's warmest month, September, generally records average temperatures ranging from a high of 77.4°F (25.2°C) to a low of 63.1°F (17.3°C).

What is the least humid month in San Juan Capistrano?

November is the least humid month in San Juan Capistrano, California, with an average relative humidity of 59%.

What part of the year is the coldest in San Juan Capistrano?

Temperature records in San Juan Capistrano mark December as the coldest month, with highs averaging 62.4°F (16.9°C) and lows at 50.5°F (10.3°C).

What is the wettest month in San Juan Capistrano?

The month with the most rainfall in San Juan Capistrano, California, is December, when the rain falls for 6.8 days and typically aggregates up to 1.85" (47mm) of precipitation.

What is the month with the shortest days in San Juan Capistrano?

December has the shortest days of the year in San Juan Capistrano, California, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in San Juan Capistrano?

December has the least sunshine of the year in San Juan Capistrano, with an average of 6.4h of sunshine.

Average temperature
San Juan Capistrano, CA

Average temperature - San Juan Capistrano, CA

The warmest month (with the highest average high temperature) is September (77.4°F).
The month with the lowest average high temperature is December (62.4°F).

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is February (50°F).

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Average pressure
San Juan Capistrano, CA

Average pressure - San Juan Capistrano, CA

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

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Average wind speed
San Juan Capistrano, CA

Average wind speed - San Juan Capistrano, CA

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August, September and October (5mph).

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Average humidity
San Juan Capistrano, CA

Average humidity - San Juan Capistrano, CA

The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (59%).

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Average rainfall
San Juan Capistrano, CA

Average rainfall - San Juan Capistrano, CA

The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days
San Juan Capistrano, CA

Average rainfall days - San Juan Capistrano, CA

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (3 days).

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Average daylight / Average sunshine
San Juan Capistrano, CA

Average daylight / Average sunshine - San Juan Capistrano, CA

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).

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days
San Juan Capistrano, CA

Average sunshine days - San Juan Capistrano, CA

The month with the most sunshine days is January (24.7 days).
The month with the least sunshine days is May (19.5 days).

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Average UV index
San Juan Capistrano, CA

Average UV index - San Juan Capistrano, CA

The months with the highest UV index are 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 visibility
San Juan Capistrano, CA

Average visibility - San Juan Capistrano, 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).

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San Juan Capistrano, California, USA

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