Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 080629
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
429 PM CHST WED OCT 08 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 8 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 87 12:01 PM 90 1998 87 0 86
2015
2016
MINIMUM 76 12:00 AM 69 1963 77 -1 74
1968
AVERAGE 82 82 0 80
PRECIPITATION (IN)
TODAY T 2.44 1951 0.45 -0.45 1.55
MONTH TO DATE 2.26 3.74 -1.48 4.15
SINCE SEP 1 14.60 18.91 -4.31 28.53
SINCE JAN 1 69.88 75.54 -5.66 75.75
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 17 17 0 15
MONTH TO DATE 128 136 -8 136
SINCE SEP 1 617 638 -21 650
SINCE JAN 1 4746 4766 -20 4748
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 12:00 AM
LOWEST 68 12:00 PM
AVERAGE 81
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 90 2018
2023
MINIMUM TEMPERATURE (F) 77 68 1968
1982
SUNRISE AND SUNSET
OCTOBER 8 2025.......SUNRISE 6:11 AM CHST SUNSET 6:06 PM CHST
OCTOBER 9 2025.......SUNRISE 6:11 AM CHST SUNSET 6:05 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$