Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 050816
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
416 AM AST FRI SEP 05 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 4 2025...
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)
YESTERDAY
MAXIMUM 90 1:59 PM 95 2023 89 1 91
MINIMUM 79 7:05 AM 70 1959 78 1 82
AVERAGE 85 83 2 87
PRECIPITATION (IN)
YESTERDAY 0.00 1.79 1954 0.24 -0.24 0.00
MONTH TO DATE 0.08 0.95 -0.87 0.37
SINCE SEP 1 0.08 0.95 -0.87 0.37
SINCE JAN 1 43.70 36.89 6.81 50.58
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 20 18 2 22
MONTH TO DATE 80 72 8 85
SINCE SEP 1 80 72 8 85
SINCE JAN 1 4125 3883 242 4536
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 61
AVERAGE 75
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 96 1981
MINIMUM TEMPERATURE (F) 78 71 1956
SUNRISE AND SUNSET
SEPTEMBER 5 2025.....SUNRISE 6:10 AM AST SUNSET 6:35 PM AST
SEPTEMBER 6 2025.....SUNRISE 6:10 AM AST SUNSET 6:34 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$