875  
SOGM40 PGUM 220640  
TIDGUM  
 
GUAM CLIMATE AND TIDE DATA  
NATIONAL WEATHER SERVICE TIYAN GU  
437 PM CHST WED JUL 22 2026  
 
FOR GUAM INTERNATIONAL AIRPORT:  
 
RAINFALL SO FAR TODAY... 0.10 INCHES  
MONTH TO DATE........... 20.68 INCHES  
YEAR TO DATE............ 77.74 INCHES  
 
TODAY JULY 22 2026 SUNRISE 6:03 AM CHST SUNSET 6:51 PM CHST  
TOMORROW JULY 23 2026 SUNRISE 6:03 AM CHST SUNSET 6:51 PM CHST  
 
MOON PHASE: WAXING GIBBOUS, 56% ILLUMINATED  
(COURTESY OF US NAVAL OBSERVATORY)  
 
ASTRONOMICAL TIDE PREDICTIONS FOR APRA HARBOR GUAM  
(COURTESY OF NOAA'S NATIONAL OCEAN SERVICE)  
 
TODAY 2026-07-22  
LOW TIDE 1.6 FEET AT 7:42 PM  
 
TOMORROW 2026-07-23  
HIGH TIDE 2.4 FEET AT 1:38 AM  
LOW TIDE 0.5 FEET AT 9:19 AM  
HIGH TIDE 2.0 FEET AT 4:53 PM  
LOW TIDE 1.8 FEET AT 8:52 PM  
 
FRIDAY 2026-07-24  
HIGH TIDE 2.3 FEET AT 2:17 AM  
LOW TIDE 0.3 FEET AT 10:10 AM  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab GU Page Main Text Page