271
CDCA42 TJSJ 171958
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
358 PM AST WED DEC 17 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 17 2025
VALID TODAY AS OF 0300 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 83 1:57 PM 90 1987 84 -1 87
MINIMUM 74 7:30 AM 65 1916 73 1 77
AVERAGE 79 79 0 82
PRECIPITATION (IN)
TODAY 0.22 1.26 1948 0.15 0.07 0.21
MONTH TO DATE 1.75 2.92 -1.17 1.45
SINCE DEC 1 1.75 2.92 -1.17 1.45
SINCE JAN 1 62.47 57.94 4.53 75.68
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 17
MONTH TO DATE 262 238 24 288
SINCE DEC 1 262 238 24 288
SINCE JAN 1 5968 5611 357 6555
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 57
AVERAGE 76
......................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 89 1980
MINIMUM TEMPERATURE (F) 73 65 1958
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 6:49 AM AST SUNSET 5:51 PM AST
DECEMBER 18 2025......SUNRISE 6:50 AM AST SUNSET 5:52 PM AST
- 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