420
CDCA42 TJSJ 162120
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
520 PM AST TUE DEC 16 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 16 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 85 2:07 PM 90 1980 84 1 86
MINIMUM 72 5:50 AM 66 1964 73 -1 75
AVERAGE 79 79 0 81
PRECIPITATION (IN)
TODAY T 3.82 2014 0.16 -0.16 0.00
MONTH TO DATE 1.53 2.77 -1.24 1.24
SINCE DEC 1 1.53 2.77 -1.24 1.24
SINCE JAN 1 62.25 57.79 4.46 75.47
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 14 14 0 16
MONTH TO DATE 248 224 24 271
SINCE DEC 1 248 224 24 271
SINCE JAN 1 5954 5597 357 6538
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 72
AVERAGE 83
......................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 90 1987
MINIMUM TEMPERATURE (F) 73 65 1916
SUNRISE AND SUNSET
DECEMBER 16 2025......SUNRISE 6:49 AM AST SUNSET 5:51 PM AST
DECEMBER 17 2025......SUNRISE 6:49 AM AST SUNSET 5:51 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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