Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 211948
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
348 PM AST FRI AUG 21 2026
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 21 2026...
VALID TODAY AS OF 0300 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 90 1:48 PM 97 1980 89 1 89
MINIMUM 80 6:44 AM 72 1956 78 2 81
AVERAGE 85 84 1 85
PRECIPITATION (IN)
TODAY 0.00 2.72 1983 0.20 -0.20 0.00
MONTH TO DATE 0.90 4.06 -3.16 5.45
SINCE JUN 1 2.96 14.74 -11.78 15.03
SINCE JAN 1 23.91 33.71 -9.80 39.43
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 20 18 2 20
MONTH TO DATE 437 378 59 409
SINCE JUN 1 1655 1484 171 1522
SINCE JAN 1 3908 3617 291 3846
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 9.3
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77
LOWEST 61
AVERAGE 69
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 93 2007
MINIMUM TEMPERATURE (F) 78 70 1916
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 6:07 AM AST SUNSET 6:47 PM AST
AUGUST 22 2026........SUNRISE 6:07 AM AST SUNSET 6:46 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$