Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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678
CDGM40 PGUM 040633
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
433 PM CHST THU SEP 04 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 4 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 12:09 PM 90 2009 87 0 87
2016
2017
MINIMUM 77 12:00 AM 67 1979 76 1 78
1986
AVERAGE 82 82 0 83
PRECIPITATION (IN)
TODAY 0.03 3.13 1961 0.54 -0.51 0.25
MONTH TO DATE 2.94 2.15 0.79 0.54
SINCE SEP 1 2.94 2.15 0.79 0.54
SINCE JAN 1 58.22 58.78 -0.56 47.76
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 18
MONTH TO DATE 66 68 -2 72
SINCE SEP 1 66 68 -2 72
SINCE JAN 1 4196 4196 0 4170
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION E (80)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 8.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 68 11:00 AM
AVERAGE 79
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2014
2016
2017
MINIMUM TEMPERATURE (F) 76 66 1976
SUNRISE AND SUNSET
SEPTEMBER 4 2025.....SUNRISE 6:10 AM CHST SUNSET 6:30 PM CHST
SEPTEMBER 5 2025.....SUNRISE 6:10 AM CHST SUNSET 6:29 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$