The best times to visit San Clemente for ideal weather are

March 5th to May 13th

or

June 18th to November 25th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other San Clemente Travel Info

Weather in San Clemente

Temperature

Average temperatures in San Clemente vary somewhat. Considering humidity, temperatures feel very enjoyable all year with a very low chance of rain or snow throughout the year. The area is more temperate than most — in the 86th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit San Clemente, the hottest months are September, August, and then July. See average monthly temperatures below. The warmest time of year is generally early to mid September where highs are regularly around 78.1°F (25.6°C) with temperatures rarely dropping below 64.8°F (18.2°C) at night.

San Clemente Temperatures (Fahrenheit)

Key
High
Average
Low

San Clemente Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

San Clemente Perceived Temperature (F)

Key
High
Average
Low

San Clemente Perceived Temperature (C)

Key
High
Average
Low

 

Average San Clemente Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan665648.4
Feb64.355.748.2
Mar66.158.151.1
Apr67.96052.7
May67.15854
Jun69.66159.1
Jul72.967.763.4
Aug75.369.364.3
Sep76.469.463.9
Oct73.365.759.6
Nov69.159.451.5
Dec64.255.548.4

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan18.913.39.1
Feb17.913.29
Mar18.914.510.6
Apr19.915.611.5
May19.514.412.2
Jun20.916.115.1
Jul22.719.817.4
Aug24.120.717.9
Sep24.720.817.7
Oct22.918.715.3
Nov20.615.210.8
Dec17.913.19.1

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in San Clemente are June, September, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late February and early March with an average of 1 days of significant precipitation the week of February 26th.

When can you find snow in San Clemente? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in San Clemente.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in San Clemente (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan6%01
Feb13%01.2
Mar7%00.8
Apr4%00.4
May3%00.3
Jun0%00
Jul1%00.1
Aug1%00.1
Sep1%00.3
Oct7%00.8
Nov6%00.9
Dec14%02.5

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan602.5
Feb1303
Mar702
Apr401
May300.8
Jun000
Jul100.3
Aug100.3
Sep100.8
Oct702
Nov602.3
Dec1406.4

 

Humidity and Wind

San Clemente has some very humid months, with other comfortably humid months. The least humid month is January (52.3% relative humidity), and the most humid month is July (70%).

Wind in San Clemente is usually calm. The windiest month is April, followed by May and June. April’s average wind speed of around 7.1 knots (8.2 MPH or 13.1 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late April where average top sustained speeds reach 15 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in San Clemente.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan5.2Light breeze11.3Significant breeze
Feb5.8Light breeze12.1Significant breeze
Mar6Light breeze12.6Significant breeze
Apr7.1Gentle breeze14Significant breeze
May6.9Light breeze13Significant breeze
Jun6.3Light breeze12.2Significant breeze
Jul5.8Light breeze11.5Significant breeze
Aug5.4Light breeze10.9Gentle breeze
Sep4.8Light breeze10.8Significant breeze
Oct5Light breeze10.8Gentle breeze
Nov5.6Light breeze11.2Significant breeze
Dec5.9Light breeze11.8Significant breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan52.3%
Feb59.8%
Mar62.3%
Apr60.3%
May61.4%
Jun68.8%
Jul70%
Aug69.7%
Sep69.9%
Oct66.9%
Nov52.9%
Dec57.3%

 

Is it Safe to Travel to San Clemente?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in San Clemente, CA, US is July, followed by June and March. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit San Clemente in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 37.9 in December means 37.9% of the tourists vs. July.

 

 

Overall San Clemente Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 72.6°F (22.6°C) and 60°F (15.6°C) with similar temperatures in the later months. Rain is rare with 1 to 2 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with about 0 days of precipitation per month. June – August is the busiest season for tourism in San Clemente, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 78.1°F (25.6°C) and 66.9°F (19.4°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 0 to 2 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is somewhat cool this time of year in San Clemente to be enjoyable for warm weather travelers. The average high during this season is between 68.2°F (20.1°C) and 62.7°F (17.1°C). On average, it rains or snows a smalll amount: 2 to 4 times per month. These times of year are the slowest with tourists.

 

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