Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 130625
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
425 PM CHST WED AUG 13 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 13 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 88 3:27 PM 92 1970 87 1 89
2018
MINIMUM 76 6:14 AM 70 1967 77 -1 78
AVERAGE 82 82 0 84
PRECIPITATION (IN)
TODAY 0.12 2.69 2009 0.60 -0.48 0.21
MONTH TO DATE 5.88 7.29 -1.41 6.38
SINCE JUN 1 32.37 26.05 6.32 21.89
SINCE JAN 1 48.10 46.26 1.84 38.76
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 17 17 0 19
MONTH TO DATE 226 221 5 226
SINCE JUN 1 1260 1315 -55 1303
SINCE JAN 1 3824 3827 -3 3784
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (100)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 7:00 AM
LOWEST 65 3:00 PM
AVERAGE 80
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 1991
MINIMUM TEMPERATURE (F) 77 72 1951
1954
SUNRISE AND SUNSET
AUGUST 13 2025........SUNRISE 6:08 AM CHST SUNSET 6:43 PM CHST
AUGUST 14 2025........SUNRISE 6:08 AM CHST SUNSET 6:43 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$