894  
SOGM40 PGUM 170645  
TIDGUM  
 
GUAM CLIMATE AND TIDE DATA  
NATIONAL WEATHER SERVICE TIYAN GU  
443 PM CHST FRI OCT 17 2025  
 
FOR GUAM INTERNATIONAL AIRPORT:  
 
RAINFALL SO FAR TODAY... 0.16 INCHES  
MONTH TO DATE........... 11.70 INCHES  
YEAR TO DATE............ 79.32 INCHES  
 
TODAY OCTOBER 17 2025 SUNRISE 6:12 AM CHST SUNSET 6:01 PM CHST  
TOMORROW OCTOBER 18 2025 SUNRISE 6:12 AM CHST SUNSET 6:00 PM CHST  
 
MOON PHASE: WANING CRESCENT, 18% ILLUMINATED  
(COURTESY OF US NAVAL OBSERVATORY)  
 
ASTRONOMICAL TIDE PREDICTIONS FOR APRA HARBOR GUAM  
(COURTESY OF NOAA'S NATIONAL OCEAN SERVICE)  
 
TODAY 2025-10-17  
HIGH TIDE 2.3 FEET AT 5:43 PM  
LOW TIDE 0.9 FEET AT 11:49 PM  
 
TOMORROW 2025-10-18  
HIGH TIDE 1.9 FEET AT 5:17 AM  
LOW TIDE 0.4 FEET AT 11:36 AM  
HIGH TIDE 2.3 FEET AT 6:08 PM  
 
SUNDAY 2025-10-19  
LOW TIDE 0.6 FEET AT 12:26 AM  
HIGH TIDE 2.0 FEET AT 6:14 AM  
 

 
 
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