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CDCA42 TJSJ 092040
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
440 PM AST TUE SEP 09 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 9 2025
VALID TODAY AS OF 0400 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 89 MM 94 2013 89 0 90
2021
MINIMUM 77 MM 70 1988 78 -1 79
AVERAGE 83 83 0 85
PRECIPITATION (IN)
TODAY T 1.82 1988 0.23 -0.23 0.27
MONTH TO DATE 0.83 2.12 -1.29 1.35
SINCE SEP 1 0.83 2.12 -1.29 1.35
SINCE JAN 1 44.45 38.06 6.39 51.56
DEGREE DAYS
HEATING
TODAY 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
TODAY 18 18 0 20
MONTH TO DATE 172 162 10 191
SINCE SEP 1 172 162 10 191
SINCE JAN 1 4217 3973 244 4642
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 63
AVERAGE 77
......................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 94 1998
2017
MINIMUM TEMPERATURE (F) 78 71 1961
SUNRISE AND SUNSET
SEPTEMBER 9 2025.....SUNRISE 6:11 AM AST SUNSET 6:31 PM AST
SEPTEMBER 10 2025.....SUNRISE 6:11 AM AST SUNSET 6:30 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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