492  
SOGM40 PGUM 150650  
TIDGUM  
 
GUAM CLIMATE AND TIDE DATA  
NATIONAL WEATHER SERVICE TIYAN GU  
446 PM CHST MON SEP 15 2025  
 
FOR GUAM INTERNATIONAL AIRPORT:  
 
RAINFALL SO FAR TODAY... 0.45 INCHES  
MONTH TO DATE........... 6.58 INCHES  
YEAR TO DATE............ 61.86 INCHES  
 
TODAY SEPTEMBER 15 2025 SUNRISE 6:10 AM CHST SUNSET 6:22 PM CHST  
TOMORROW SEPTEMBER 16 2025 SUNRISE 6:10 AM CHST SUNSET 6:21 PM CHST  
 
MOON PHASE: , % ILLUMINATED  
(COURTESY OF US NAVAL OBSERVATORY)  
 
ASTRONOMICAL TIDE PREDICTIONS FOR APRA HARBOR GUAM  
(COURTESY OF NOAA'S NATIONAL OCEAN SERVICE)  
 
TODAY 2025-09-15  
LOW TIDE 1.8 FEET AT 8:41 PM  
 
TOMORROW 2025-09-16  
HIGH TIDE 2.2 FEET AT 12:56 AM  
LOW TIDE -0.1 FEET AT 9:03 AM  
HIGH TIDE 2.3 FEET AT 5:06 PM  
LOW TIDE 1.7 FEET AT 10:09 PM  
 
WEDNESDAY 2025-09-17  
HIGH TIDE 2.1 FEET AT 2:25 AM  
LOW TIDE -0.1 FEET AT 10:14 AM  
 
 
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