522
CDHW40 PHFO 220245
CLIHNL
CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
445 PM HST THU AUG 21 2025
...............................
..THE HONOLULU HI CLIMATE SUMMARY FOR AUGUST 21 2025
VALID TODAY AS OF 0425 PM LOCAL TIME.
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)
TODAY
MAXIMUM 90 211 PM 93 1987 89 1 89
MINIMUM 78 802 AM 70 1965 76 2 78
1984
AVERAGE 84 82 2 84
PRECIPITATION (IN)
TODAY T 0.27 1978 0.03 -0.03 T
MONTH TO DATE T 0.50 -0.50 0.03
SINCE JUN 1 0.15 1.52 -1.37 0.11
SINCE JAN 1 8.88 9.25 -0.37 9.59
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 19 17 2 19
MONTH TO DATE 382 357 25 370
SINCE JUN 1 1397 1332 65 1346
SINCE JAN 1 3306 2901 405 2936
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 14.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 800 AM
LOWEST 42 200 PM
AVERAGE 57
......................................................
THE HONOLULU HI CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 93 1995
MINIMUM TEMPERATURE (F) 76 68 2009
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 612 AM HST SUNSET 657 PM HST
AUGUST 22 2025........SUNRISE 613 AM HST SUNSET 656 PM HST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page