478
CDGM40 PGUM 180631
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
431 PM CHST TUE AUG 18 2026
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 18 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 87 1:42 PM 92 1992 87 0 90
MINIMUM 76 4:13 AM 71 1990 77 -1 77
AVERAGE 82 82 0 84
PRECIPITATION (IN)
TODAY 0.04 2.97 1997 0.59 -0.55 0.41
MONTH TO DATE 6.52 10.31 -3.79 7.37
SINCE JUN 1 32.86 29.07 3.79 33.86
SINCE JAN 1 84.59 49.28 35.31 49.59
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 17 17 0 19
MONTH TO DATE 312 306 6 315
SINCE JUN 1 1379 1400 -21 1349
SINCE JAN 1 3771 3912 -141 3913
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 5.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 3:00 AM
LOWEST 72 1:00 PM
AVERAGE 84
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 1969
1988
MINIMUM TEMPERATURE (F) 77 71 1964
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:08 AM CHST SUNSET 6:41 PM CHST
AUGUST 19 2026........SUNRISE 6:08 AM CHST SUNSET 6:40 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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