Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 100628
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
428 PM CHST FRI OCT 10 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 10 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 81 8:25 AM 90 1999 87 -6 88
2007
MINIMUM 76 9:58 AM 68 1966 77 -1 77
1982
AVERAGE 79 82 -3 83
PRECIPITATION (IN)
TODAY 0.16 5.89 1979 0.44 -0.28 0.02
MONTH TO DATE 2.65 4.63 -1.98 6.27
SINCE SEP 1 14.99 19.80 -4.81 30.65
SINCE JAN 1 70.27 76.43 -6.16 77.87
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 14 17 -3 18
MONTH TO DATE 160 170 -10 169
SINCE SEP 1 649 672 -23 683
SINCE JAN 1 4778 4800 -22 4781
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (80)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 3.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 2:00 AM
LOWEST 87 12:00 PM
AVERAGE 91
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2004
MINIMUM TEMPERATURE (F) 77 68 1957
1962
SUNRISE AND SUNSET
OCTOBER 10 2025.......SUNRISE 6:11 AM CHST SUNSET 6:05 PM CHST
OCTOBER 11 2025.......SUNRISE 6:11 AM CHST SUNSET 6:04 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$