307
CDGM40 PGUM 261607
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
207 AM CHST SAT SEP 27 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 26 2025...
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)
YESTERDAY
MAXIMUM 87 1:18 PM 90 2020 87 0 88
MINIMUM 76 4:52 AM 67 1975 76 0 78
1984
AVERAGE 82 82 0 83
PRECIPITATION (IN)
YESTERDAY 0.44 4.93 2002 0.49 -0.05 0.21
MONTH TO DATE 11.35 13.26 -1.91 24.35
SINCE SEP 1 11.35 13.26 -1.91 24.35
SINCE JAN 1 66.63 69.89 -3.26 71.57
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 17 17 0 18
MONTH TO DATE 427 442 -15 441
SINCE SEP 1 427 442 -15 441
SINCE JAN 1 4556 4570 -14 4539
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SE (140)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 5.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 7:00 AM
LOWEST 70 12:00 PM
AVERAGE 82
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THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2016
MINIMUM TEMPERATURE (F) 76 67 1968
SUNRISE AND SUNSET
SEPTEMBER 27 2025.....SUNRISE 6:10 AM CHST SUNSET 6:13 PM CHST
SEPTEMBER 28 2025.....SUNRISE 6:10 AM CHST SUNSET 6:13 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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