718
CDHW40 PHFO 181245
CLIHNL
CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
245 AM HST THU SEP 18 2025
...............................
..THE HONOLULU CLIMATE SUMMARY FOR SEPTEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1940 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 88 249 PM 92 1967 88 0 90
1987
1995
MINIMUM 78 659 AM 70 1954 75 3 77
1971
1974
AVERAGE 83 82 1 84
PRECIPITATION (IN)
YESTERDAY T 1.35 1963 0.03 -0.03 0.00
MONTH TO DATE 0.57 0.54 0.03 0.01
SINCE SEP 1 0.57 0.54 0.03 0.01
SINCE JAN 1 9.45 10.13 -0.68 9.72
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 18 17 1 19
MONTH TO DATE 301 289 12 301
SINCE SEP 1 301 289 12 301
SINCE JAN 1 3786 3366 420 3408
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 15.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74 400 AM
LOWEST 45 1200 PM
AVERAGE 60
......................................................
THE HONOLULU CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 92 1985
1995
MINIMUM TEMPERATURE (F) 75 68 1979
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 1016 AM HDT SUNSET 1028 PM HDT
SEPTEMBER 19 2025.....SUNRISE 1016 AM HDT SUNSET 1027 PM HDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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