281
CDGM40 PGUM 180635
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
435 PM CHST FRI SEP 18 2026
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 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 88 4:46 PM 93 2014 87 1 88
MINIMUM 78 10:32 AM 73 1956 76 2 76
1960
1966
AVERAGE 83 82 1 82
PRECIPITATION (IN)
TODAY 0.28 2.35 1981 0.49 -0.21 0.24
MONTH TO DATE 10.40 9.32 1.08 9.12
SINCE SEP 1 10.40 9.32 1.08 9.12
SINCE JAN 1 102.43 65.95 36.48 64.40
DEGREE DAYS
HEATING
TODAY 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
TODAY 18 17 1 17
MONTH TO DATE 307 306 1 295
SINCE SEP 1 307 306 1 295
SINCE JAN 1 4301 4434 -133 4424
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 7.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 1:00 AM
LOWEST 75 1:00 PM
AVERAGE 85
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 93 1984
MINIMUM TEMPERATURE (F) 76 71 1986
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 6:10 AM CHST SUNSET 6:20 PM CHST
SEPTEMBER 19 2026.....SUNRISE 6:10 AM CHST SUNSET 6:19 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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