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May 18th, 2026 :: 6:28 am PDT   

Local Weather Report for
San Clemente Island
California, United States

 San Clemente Island Weather Forecast Summary  
 
Today
May 18th
Tuesday
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Mostly Sunny Mostly Sunny Mostly Sunny Sunny Mostly Sunny
62°F
64°F
61°F
63°F
62°F
61°F
60°F
60°F
59°F
 
 San Clemente Island Detailed Weather Forecast  
 
Monday, May 18th, 2026
Morning Temperature: 60°F
Sunny.
Afternoon Temperature: 61°F
Sunny.
Evening Temperature: 62°F
Clear.
Tuesday, May 19th, 2026
Overnight Temperature: 62°F
Mostly clear.
Morning Temperature: 62°F
Sunny.
Afternoon Temperature: 64°F
Sunny. Windy at times.
Evening Temperature: 63°F
Clear. Windy at times.
Wednesday, May 20th, 2026
Overnight Temperature: 63°F
Clear.
Morning Temperature: 62°F
Sunny.
Afternoon Temperature: 63°F
Sunny. Windy.
Evening Temperature: 62°F
Mostly clear.
Thursday, May 21st, 2026
Overnight Temperature: 61°F
Clear with cloudy periods.
Morning Temperature: 60°F
Sunny. Windy at times.
Afternoon Temperature: 61°F
Sunny. Windy.
Evening Temperature: 60°F
Clear. Windy at times.
Friday, May 22nd, 2026
Overnight Temperature: 60°F
Mostly clear. Windy at times.
Morning Temperature: 60°F
Mostly sunny. Windy at times.
Afternoon Temperature: 60°F
Mostly sunny. Windy at times.
Evening Temperature: 60°F
Mostly clear. Windy at times.
Saturday, May 23rd, 2026
Overnight Temperature: 60°F
Mostly clear.
Morning Temperature: 60°F
Sunny with cloudy periods.
Afternoon Temperature: 61°F
Sunny. Windy at times.
Evening Temperature: 61°F
Mostly clear. Windy at times.
Sunday, May 24th, 2026
Overnight Temperature: 60°F
Clear.
Morning Temperature: 61°F
Sunny.
Afternoon Temperature: 62°F
Sunny. Windy.
Evening Temperature: 62°F
Clear. Windy at times.
Monday, May 25th, 2026
Overnight Temperature: 61°F
Clear. Windy at times.
Morning Temperature: 61°F
Sunny. Windy at times.
Afternoon Temperature: 61°F
Sunny. Windy.
Evening Temperature: 61°F
Clear. Windy at times.
Tuesday, May 26th, 2026
Overnight Temperature: 61°F
Clear. Windy at times.
Morning Temperature: 61°F
Sunny. Windy at times.
Afternoon Temperature: 62°F
Sunny. Windy at times.
Evening Temperature: 62°F
Clear. Windy at times.





 

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4:51 AM  52°F
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4:53 AM  61°F
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This WeatherCity Weather Forecast for San Clemente Island, California, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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