Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 211952
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
352 PM AST THU AUG 21 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 21 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 89 1:59 PM 97 1980 89 0 91
MINIMUM 81 7:13 AM 72 1956 78 3 80
AVERAGE 85 84 1 86
PRECIPITATION (IN)
TODAY 0.00 2.72 1983 0.20 -0.20 0.36
MONTH TO DATE 5.45 4.06 1.39 7.41
SINCE JUN 1 15.03 14.74 0.29 15.58
SINCE JAN 1 39.43 33.71 5.72 48.46
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 21
MONTH TO DATE 409 378 31 445
SINCE JUN 1 1522 1484 38 1731
SINCE JAN 1 3846 3617 229 4243
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 9.3
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79
LOWEST 63
AVERAGE 71
..........................................................
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 2025........SUNRISE 6:07 AM AST SUNSET 6:46 PM AST
AUGUST 22 2025........SUNRISE 6:08 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.
$$