223  
CDUS46 KSGX 220024  
CLISAN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
524 PM PDT SUN SEP 21 2025  
   
...............................
 
 
...THE SAN DIEGO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 21 2025...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1874 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 77 2:18 PM 106 1939 77 0 74  
MINIMUM 66 5:39 AM 53 1893 66 0 61  
1997  
AVERAGE 72 71 1 68  
 
PRECIPITATION (IN)  
TODAY T 0.16 2016 0.01 -0.01 0.00  
MONTH TO DATE 0.45 0.07 0.38 0.02  
SINCE JUL 1 0.50 0.16 0.34 0.02  
SINCE OCT 1 5.06 9.74 -4.68 12.43  
SINCE JAN 1 4.92 6.78 -1.86 11.02  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 1 -1 0  
 
COOLING  
TODAY 7 6 1 3  
MONTH TO DATE 164 152 12 184  
SINCE SEP 1 164 152 12 184  
SINCE JAN 1 596 712 -116 759    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 4.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 67 2:00 PM  
AVERAGE 82  
   
......................................................
 
 
THE SAN DIEGO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 102 1939  
MINIMUM TEMPERATURE (F) 66 53 1944  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2025.....SUNRISE 6:36 AM PDT SUNSET 6:46 PM PDT  
SEPTEMBER 22 2025.....SUNRISE 6:37 AM PDT SUNSET 6:45 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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