Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 010940
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
540 AM AST MON SEP 01 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 31 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 1:06 PM 94 1995 89 1 91
MINIMUM 78 3:26 PM 71 1902 78 0 79
AVERAGE 84 84 0 85
PRECIPITATION (IN)
YESTERDAY 2.45 2.63 1979 0.23 2.22 0.43
MONTH TO DATE 9.64 6.29 3.35 9.16
SINCE JUN 1 19.22 16.97 2.25 17.33
SINCE JAN 1 43.62 35.94 7.68 50.21
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 19 18 1 20
MONTH TO DATE 608 572 36 653
SINCE JUN 1 1721 1678 43 1939
SINCE JAN 1 4045 3811 234 4451
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 63
AVERAGE 77
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 97 1981
MINIMUM TEMPERATURE (F) 78 70 1942
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.
$$