969  
CDUS46 KSGX 210929  
CLISAN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
229 AM PDT SUN SEP 21 2025  
   
...............................
 
 
...THE SAN DIEGO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 20 2025...  
 
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)  
YESTERDAY  
MAXIMUM 75 1:49 PM 100 1939 77 -2 74  
MINIMUM 67 10:49 PM 53 1882 66 1 64  
1893  
AVERAGE 71 71 0 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.24 1939 0.00 0.00 0.02  
1991  
MONTH TO DATE 0.45 0.06 0.39 0.02  
SINCE JUL 1 0.50 0.15 0.35 0.02  
SINCE OCT 1 5.06 9.73 -4.67 12.43  
SINCE JAN 1 4.92 6.77 -1.85 11.02  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 6 6 0 4  
MONTH TO DATE 157 146 11 181  
SINCE SEP 1 157 146 11 181  
SINCE JAN 1 589 706 -117 756    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 12:00 AM  
LOWEST 74 12:00 PM  
AVERAGE 82  
   
......................................................
 
 
THE SAN DIEGO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 106 1939  
MINIMUM TEMPERATURE (F) 66 53 1893  
1997  
 
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.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page