Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 311930
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU JUL 31 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JULY 31 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 90 1:59 PM 94 1980 89 1 89
MINIMUM 78 6:36 AM 71 1927 78 0 81
AVERAGE 84 83 1 85
PRECIPITATION (IN)
TODAY 0.02 1.87 1937 0.19 -0.17 0.41
MONTH TO DATE 5.49 6.02 -0.53 4.76
SINCE JUN 1 9.50 10.68 -1.18 8.17
SINCE JAN 1 33.90 29.65 4.25 41.05
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 19 18 1 20
MONTH TO DATE 586 563 23 647
SINCE JUN 1 1113 1106 7 1286
SINCE JAN 1 3437 3239 198 3798
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85
LOWEST 61
AVERAGE 73
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 93 1980
MINIMUM TEMPERATURE (F) 78 70 1904
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 6:02 AM AST SUNSET 6:59 PM AST
AUGUST 1 2025........SUNRISE 6:02 AM AST SUNSET 6:59 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$