Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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902
CDGM40 PGUM 291616
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
216 AM CHST SAT AUG 30 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 29 2025...
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)
YESTERDAY
MAXIMUM 89 1:52 PM 91 2014 87 2 86
MINIMUM 79 10:39 PM 68 1979 76 3 77
AVERAGE 84 82 2 82
PRECIPITATION (IN)
YESTERDAY 0.11 5.91 1997 0.58 -0.47 0.57
MONTH TO DATE 12.42 16.53 -4.11 13.41
SINCE JUN 1 38.91 35.29 3.62 28.92
SINCE JAN 1 54.64 55.50 -0.86 45.79
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 19 17 2 17
MONTH TO DATE 501 493 8 505
SINCE JUN 1 1535 1587 -52 1582
SINCE JAN 1 4099 4099 0 4063
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 12.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 8:00 AM
LOWEST 68 1:00 PM
AVERAGE 78
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2016
MINIMUM TEMPERATURE (F) 76 65 1983
SUNRISE AND SUNSET
AUGUST 30 2025........SUNRISE 6:09 AM CHST SUNSET 6:33 PM CHST
AUGUST 31 2025........SUNRISE 6:09 AM CHST SUNSET 6:33 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$