375
CDGM40 PGUM 170708
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
508 PM CHST MON AUG 17 2026
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 17 2026...
VALID TODAY AS OF 0500 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 86 2:04 PM 91 1964 87 -1 89
1966
1969
MINIMUM 76 1:36 AM 73 1979 77 -1 77
1990
AVERAGE 81 82 -1 83
PRECIPITATION (IN)
TODAY 0.17 3.09 2003 0.60 -0.43 0.29
MONTH TO DATE 6.48 9.72 -3.24 6.96
SINCE JUN 1 32.82 28.48 4.34 33.45
SINCE JAN 1 84.55 48.69 35.86 49.18
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 16 17 -1 18
MONTH TO DATE 295 289 6 296
SINCE JUN 1 1362 1383 -21 1330
SINCE JAN 1 3754 3895 -141 3894
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 7.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 8:00 AM
LOWEST 72 12:00 PM
AVERAGE 83
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 92 1992
MINIMUM TEMPERATURE (F) 77 71 1990
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 6:08 AM CHST SUNSET 6:41 PM CHST
AUGUST 18 2026........SUNRISE 6:08 AM CHST SUNSET 6:41 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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