520
CDCA42 TJSJ 171934
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
334 PM AST WED SEP 17 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 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 91 1:02 PM 95 1995 89 2 91
MINIMUM 78 4:47 AM 72 1954 78 0 80
AVERAGE 85 83 2 86
PRECIPITATION (IN)
TODAY 0.38 1.68 1911 0.21 0.17 0.23
MONTH TO DATE 3.02 3.90 -0.88 2.45
SINCE SEP 1 3.02 3.90 -0.88 2.45
SINCE JAN 1 46.64 39.84 6.80 52.66
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 20 18 2 21
MONTH TO DATE 330 306 24 362
SINCE SEP 1 330 306 24 362
SINCE JAN 1 4375 4117 258 4813
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 10.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 61
AVERAGE 76
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THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 96 1995
MINIMUM TEMPERATURE (F) 78 71 1960
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 6:12 AM AST SUNSET 6:24 PM AST
SEPTEMBER 18 2025.....SUNRISE 6:12 AM AST SUNSET 6:23 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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