Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 012011
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
411 PM AST MON SEP 01 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 1 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 91 12:46 PM 97 1981 89 2 90
MINIMUM 77 5:34 AM 70 1942 78 -1 79
AVERAGE 84 84 0 85
PRECIPITATION (IN)
TODAY 0.01 3.19 1899 0.24 -0.23 0.04
MONTH TO DATE 0.01 0.24 -0.23 0.04
SINCE SEP 1 0.01 0.24 -0.23 0.04
SINCE JAN 1 43.63 36.18 7.45 50.25
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 19 18 1 20
MONTH TO DATE 19 18 1 20
SINCE SEP 1 19 18 1 20
SINCE JAN 1 4064 3829 235 4471
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 7.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87
LOWEST 59
AVERAGE 73
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 95 2023
MINIMUM TEMPERATURE (F) 78 72 1962
SUNRISE AND SUNSET
SEPTEMBER 1 2025.....SUNRISE 6:09 AM AST SUNSET 6:38 PM AST
SEPTEMBER 2 2025.....SUNRISE 6:10 AM AST SUNSET 6:37 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$