890  
SOGM40 PGUM 170630  
TIDGUM  
 
GUAM CLIMATE AND TIDE DATA  
NATIONAL WEATHER SERVICE TIYAN GU  
428 PM CHST TUE MAR 17 2026  
 
FOR GUAM INTERNATIONAL AIRPORT:  
 
RAINFALL SO FAR TODAY... A TRACE  
MONTH TO DATE........... 12.12 INCHES  
YEAR TO DATE............ 25.89 INCHES  
 
TODAY MARCH 17 2026 SUNRISE 6:27 AM CHST SUNSET 6:31 PM CHST  
TOMORROW MARCH 18 2026 SUNRISE 6:27 AM CHST SUNSET 6:31 PM CHST  
 
MOON PHASE: WANING CRESCENT, 5% ILLUMINATED  
(COURTESY OF US NAVAL OBSERVATORY)  
 
ASTRONOMICAL TIDE PREDICTIONS FOR APRA HARBOR GUAM  
(COURTESY OF NOAA'S NATIONAL OCEAN SERVICE)  
 
TODAY 2026-03-17  
HIGH TIDE 2.2 FEET AT 6:18 PM  
 
TOMORROW 2026-03-18  
LOW TIDE 0.0 FEET AT 12:59 AM  
HIGH TIDE 2.3 FEET AT 7:33 AM  
LOW TIDE 0.8 FEET AT 1:25 PM  
HIGH TIDE 2.3 FEET AT 7:07 PM  
 
THURSDAY 2026-03-19  
LOW TIDE 0.2 FEET AT 1:38 AM  
HIGH TIDE 2.3 FEET AT 7:55 AM  
 

 
 
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