Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 280627
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
427 PM CHST THU AUG 28 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 28 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 89 12:26 PM 91 2019 87 2 89
MINIMUM 77 7:14 AM 63 1983 76 1 78
AVERAGE 83 82 1 84
PRECIPITATION (IN)
TODAY 0.25 14.17 1992 0.57 -0.32 0.27
MONTH TO DATE 12.31 15.95 -3.64 12.84
SINCE JUN 1 38.80 34.71 4.09 28.35
SINCE JAN 1 54.53 54.92 -0.39 45.22
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 18 17 1 19
MONTH TO DATE 482 476 6 488
SINCE JUN 1 1516 1570 -54 1565
SINCE JAN 1 4080 4082 -2 4046
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 6.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 7:00 AM
LOWEST 68 2:00 PM
AVERAGE 79
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2014
MINIMUM TEMPERATURE (F) 76 68 1979
SUNRISE AND SUNSET
AUGUST 28 2025........SUNRISE 6:09 AM CHST SUNSET 6:35 PM CHST
AUGUST 29 2025........SUNRISE 6:09 AM CHST SUNSET 6:34 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$