Climatological Report (Daily)
Issued by NWS Honolulu, HI

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280
CDHW40 PHFO 311245
CLIHNL

CLIMATE REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
245 AM HST SUN AUG 31 2025

...................................

...THE HONOLULU CLIMATE SUMMARY FOR AUGUST 30 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         87   1042 AM  93    1997  89     -2       89
  MINIMUM         74    554 AM  68    1987  75     -1       77
  AVERAGE         81                        82     -1       83

PRECIPITATION (IN)
  YESTERDAY        0.00          0.28 1956   0.04  -0.04     0.01
  MONTH TO DATE    T                         0.80  -0.80     0.14
  SINCE JUN 1      0.15                      1.82  -1.67     0.22
  SINCE JAN 1      8.88                      9.55  -0.67     9.70

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       16                        17     -1       18
  MONTH TO DATE  545                       510     35      523
  SINCE JUN 1   1560                      1485     75     1499
  SINCE JAN 1   3469                      3054    415     3089
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED     6.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           600 AM
 LOWEST     45          1100 AM
 AVERAGE    61

..........................................................


THE HONOLULU CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89        95      2019
 MINIMUM TEMPERATURE (F)   75        69      1987


SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE  1012 AM HDT   SUNSET  1045 PM HDT
SEPTEMBER  1 2025.....SUNRISE  1012 AM HDT   SUNSET  1044 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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