Monthly weather forecast and climate
San Juan Capistrano, CA

Weather in January

January, like December, in San Juan Capistrano, California, is another comfortable winter month, with average temperature ranging between max 64.2°F (17.9°C) and min 51.3°F (10.7°C). In January, the average high-temperature is almost the same as in December - a still enjoyable 64.2°F (17.9°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 average temperature ranging between min 50°F (10°C) and max 63.1°F (17.3°C). In San Juan Capistrano, the average high-temperature is relatively the same as in January - a still enjoyable 63.1°F (17.3°C). Weather in February »

Weather in March

March, the first month of the spring, in San Juan Capistrano, is still a comfortable month, with average temperature varying between 51.1°F (10.6°C) and 64.8°F (18.2°C). In San Juan Capistrano, the average high-temperature is almost the same as in February - a still enjoyable 64.8°F (18.2°C). Weather in March »

Weather in April

April, the same as March, is another enjoyable spring month in San Juan Capistrano, California, with average temperature fluctuating between 52.9°F (11.6°C) and 66.4°F (19.1°C). In April, the average high-temperature is essentially the same as in March - a still comfortable 66.4°F (19.1°C). Weather in April »

Weather in May

May, the last month of the spring, in San Juan Capistrano, is also an enjoyable month, with average temperature fluctuating between 67.6°F (19.8°C) and 55°F (12.8°C). In May, the average high-temperature is essentially the same as in April - a still enjoyable 67.6°F (19.8°C). Weather in May »

Weather in June

June, the first month of the summer, in San Juan Capistrano, is a pleasant month, with average temperature ranging between max 71.2°F (21.8°C) and min 57.7°F (14.3°C). In San Juan Capistrano, the average high-temperature is relatively the same as in May - an agreeable 71.2°F (21.8°C). Weather in June »

Weather in July

July is a moderately hot summer month in San Juan Capistrano, California, with average temperature fluctuating between 75.4°F (24.1°C) and 61.9°F (16.6°C). In San Juan Capistrano, the average high-temperature is practically the same as in June - a moderately hot 75.4°F (24.1°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in San Juan Capistrano, California, with average temperature ranging between min 63.3°F (17.4°C) and max 76.8°F (24.9°C). In San Juan Capistrano, the average high-temperature in August is relatively the same as in July - a still warm 76.8°F (24.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in San Juan Capistrano, California, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 63.1°F (17.3°C). With an average high-temperature of 77.4°F (25.2°C) and an average low-temperature of 63.1°F (17.3°C), September is the warmest month. Weather in September »

Weather in October

October, the same as September, in San Juan Capistrano, California, is another pleasant autumn month, with average temperature fluctuating between 60.3°F (15.7°C) and 73.2°F (22.9°C). In San Juan Capistrano, California, the average high-temperature is relatively the same as in September - an agreeable 73.2°F (22.9°C). Weather in October »

Weather in November

November, the last month of the autumn, in San Juan Capistrano, is another pleasant month, with average temperature ranging between max 68.7°F (20.4°C) and min 55.6°F (13.1°C). In November, the average high-temperature is essentially the same as in October - a still agreeable 68.7°F (20.4°C). Weather in November »

Weather in December

December, the first month of the winter, in San Juan Capistrano, is also an enjoyable month, with average temperature ranging between max 62.4°F (16.9°C) and min 50.5°F (10.3°C). December is the coldest month, with an average high-temperature of 62.4°F (16.9°C) and an average low-temperature of 50.5°F (10.3°C). Weather in December »
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FAQ

How much does it rain in San Juan Capistrano?

Throughout the year, in San Juan Capistrano, California, there are 69 rainfall days, and 9.09" (231mm) of precipitation is accumulated.

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

Months with the lowest UV index in San Juan Capistrano, California, are January through March, November and December, with an average maximum UV index of 4.

What is the most humid month in San Juan Capistrano?

June is the most humid month in San Juan Capistrano, with an average relative humidity of 74%.

What is the driest month in San Juan Capistrano?

The month with the least rainfall in San Juan Capistrano, California, 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 14.4h of daylight, June has the longest days of the year in San Juan Capistrano, California.

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

Months with the highest UV index in San Juan Capistrano, California, are July through September, with an average maximum UV index of 6.

What month has the most sunshine in San Juan Capistrano?

August has the most sunshine of the year, with an average of 11.9h of sunshine.

What is the warmest month in San Juan Capistrano?

With an average high-temperature of 77.4°F (25.2°C) and an average low-temperature of 63.1°F (17.3°C), September is the warmest month in San Juan Capistrano, California.

What is the least humid month in San Juan Capistrano?

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

What is the coldest month in San Juan Capistrano?

The coldest month in San Juan Capistrano, California, is December, with an average high-temperature of 62.4°F (16.9°C) and an average low-temperature of 50.5°F (10.3°C).

What is the wettest month in San Juan Capistrano?

December is the month with the most rainfall in San Juan Capistrano, California. Rain falls for 6.8 days and accumulates 1.85" (47mm) of precipitation.

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

With an average of 10h of daylight, December has the shortest days of the year in San Juan Capistrano, California.

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

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

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").
The month with the lowest atmospheric pressure is June (29.88").

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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: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

The month with the most sunshine is August (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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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

Months with the highest UV index are July, August and September (UV index 6).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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