Climate and monthly weather forecast
San Clemente, CA

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Weather in January

January, the same as December, is another enjoyable winter month in San Clemente, California, with an average temperature ranging between max 64.2°F (17.9°C) and min 50.9°F (10.5°C). The initiation of January records an average high-temperature of a still comfortable 64.2°F (17.9°C), displaying a near consistency with the previous month. Weather in January »

Weather in February

February, the last month of the winter in San Clemente, is another refreshing month, with an average temperature fluctuating between 63.1°F (17.3°C) and 49.6°F (9.8°C). The transition into February is marked with an average high-temperature of a still comfortable 63.1°F (17.3°C), showing an insignificant shift from January's 64.2°F (17.9°C). Weather in February »

Weather in March

March, the first month of the spring in San Clemente, is still a comfortable month, with an average temperature fluctuating between 50.5°F (10.3°C) and 64.8°F (18.2°C). The arrival of March brings an average high-temperature of a still refreshing 64.8°F (18.2°C), closely following the temperature pattern of February. Weather in March »

Weather in April

April, like March, in San Clemente, California, is another refreshing spring month, with temperature in the range of an average high of 66.6°F (19.2°C) and an average low of 52.7°F (11.5°C). In April, San Clemente notes an average high-temperature of a still comfortable 66.6°F (19.2°C), hardly different from the preceding month. Weather in April »

Weather in May

May, the last month of the spring in San Clemente, is another refreshing month, with an average temperature varying between 55°F (12.8°C) and 67.6°F (19.8°C). San Clemente experiences a subtle adjustment in high-temperatures to a still refreshing 67.6°F (19.8°C) with the onset of May, maintaining near parity with April's 66.6°F (19.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in San Clemente, California, with an average temperature ranging between min 57.7°F (14.3°C) and max 71.2°F (21.8°C). The shift to June signals an average high-temperature of an agreeable 71.2°F (21.8°C), subtly varied from May's 67.6°F (19.8°C). Weather in June »

Weather in July

July is a moderately hot summer month in San Clemente, California, with an average temperature ranging between max 75.6°F (24.2°C) and min 62.2°F (16.8°C). The unfolding of July shows an average high-temperature of a warm 75.6°F (24.2°C), indicating a slight variance from June's 71.2°F (21.8°C). Weather in July »

Weather in August

August, the last month of the summer in San Clemente, is also a moderately hot month, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 63.5°F (17.5°C). In August, the average high-temperature registers at a still warm 77.2°F (25.1°C), nearly identical to July's 75.6°F (24.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in San Clemente, California, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 63.5°F (17.5°C). In San Clemente, temperatures reach their average annual highs in September, measuring 77.4°F (25.2°C) and a minimum average of 63.5°F (17.5°C). Weather in September »

Weather in October

October, the same as September, in San Clemente, California, is another pleasant autumn month, with an average temperature fluctuating between 60.4°F (15.8°C) and 73.2°F (22.9°C). The initiation of October sees an average high-temperature of an agreeable 73.2°F (22.9°C), showing minor variations from the previous month. Weather in October »

Weather in November

November, the last month of the autumn in San Clemente, is also an agreeable month, with an average temperature ranging between max 68.7°F (20.4°C) and min 55.6°F (13.1°C). As October turns into November, the average high-temperatures rest at a still agreeable 68.7°F (20.4°C), showing a minor variation from the prior month. Weather in November »

Weather in December

December, the first month of the winter in San Clemente, is still a comfortable month, with an average temperature fluctuating between 62.6°F (17°C) and 50.4°F (10.2°C). San Clemente's coldest month, December, registers temperatures that range from a high of 62.6°F (17°C) to a low of 50.4°F (10.2°C). Weather in December »
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Frequently asked questions

How much does it rain in San Clemente?

Throughout the year, in San Clemente, California, there are 51.1 rainfall days, and 3.66" (93mm) of precipitation is accumulated.

What are the months with the lowest UV index in San Clemente?

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

What is the month with the coldest ocean in San Clemente?

February is the month with the coldest seawater in San Clemente, California, with an average ocean temperature of 58.8°F (14.9°C).

When is Daylight Saving Time (DST) in San Clemente?

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 Clemente?

With an average relative humidity of 75%, June is the most humid month in San Clemente, California.

What is the driest month in San Clemente?

June is the month with the least rainfall in San Clemente. Rain falls for 1.4 days and accumulates 0.08" (2mm) of precipitation.

When are the longest days in San Clemente?

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

What are the months with the most sunshine in San Clemente?

The months with the most sunshine in San Clemente, California, are July and August, with an average of 11.8h of sunshine.

What is the month with the highest UV index in San Clemente?

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

What month is the ocean warmest in San Clemente?

The month with the warmest seawater in San Clemente is August, with an average ocean temperature of 68.2°F (20.1°C).

What month is the hottest in San Clemente?

San Clemente's warmest month, September, generally records average temperatures ranging from a high of 77.4°F (25.2°C) to a low of 63.5°F (17.5°C).

What is the least humid month in San Clemente?

The least humid month in San Clemente, California, is November, with an average relative humidity of 60%.

What is the coldest time of year in San Clemente?

The coldest period in San Clemente, California, is December, when temperatures fluctuate between an average high of 62.6°F (17°C) and a low of 50.4°F (10.2°C).

What is the rainiest month in San Clemente?

December is the month with the most rainfall. Rain falls for 4.8 days and accumulates 0.71" (18mm) of precipitation.

What is the month with the shortest days in San Clemente?

The month with the shortest days in San Clemente, California, is December, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in San Clemente?

The month with the least sunshine in San Clemente is December, with an average of 6.5h of sunshine.

Average temperature
San Clemente, CA

Average temperature - San Clemente, 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 (62.6°F).

The months with the highest average low temperature are August and September (63.5°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

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Average pressure
San Clemente, CA

Average pressure - San Clemente, 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 Clemente, CA

Average wind speed - San Clemente, CA

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (4.9mph).

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Average rainfall
San Clemente, CA

Average rainfall - San Clemente, CA

The wettest month (with the highest rainfall) is December (0.71").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days
San Clemente, CA

Average rainfall days - San Clemente, CA

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.4 days).

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Average sea temperature
San Clemente, CA

Average sea temperature - San Clemente, CA

The best month for swimming (with the highest average sea temperature) is August (68.3°F).
The coldest months (with the lowest average sea temperature) are January and February (58.9°F).

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Average daylight / Average sunshine
San Clemente, CA

Average daylight / Average sunshine - San Clemente, 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 months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days
San Clemente, CA

Average sunshine days - San Clemente, CA

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is February (21.6 days).

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Average UV index
San Clemente, CA

Average UV index - San Clemente, 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 Clemente, CA

Average visibility - San Clemente, 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 Clemente, California, USA

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