414  
CDGM40 PGUM 221606  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
206 AM CHST TUE DEC 23 2025  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 22 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 12:02 AM 89 2014 87 -6 86  
2015  
2018  
MINIMUM 74 11:27 AM 62 1986 77 -3 77  
AVERAGE 78 82 -4 82  
 
PRECIPITATION (IN)  
YESTERDAY 2.17R 1.40 1947 0.15 2.02 0.60  
MONTH TO DATE 5.79 3.84 1.95 4.28  
SINCE DEC 1 5.79 3.84 1.95 4.28  
SINCE JAN 1 95.34 96.66 -1.32 99.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 13 17 -4 17  
MONTH TO DATE 363 374 -11 367  
SINCE DEC 1 363 374 -11 367  
SINCE JAN 1 6014 6058 -44 6003    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1:00 PM  
LOWEST 79 3:00 AM  
AVERAGE 88  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 90 2014  
MINIMUM TEMPERATURE (F) 77 68 1981  
1986  
1990  
 
SUNRISE AND SUNSET  
DECEMBER 23 2025......SUNRISE 6:40 AM CHST SUNSET 6:00 PM CHST  
DECEMBER 24 2025......SUNRISE 6:40 AM CHST SUNSET 6:00 PM CHST  
 
- 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 GU Page Main Text Page