Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 200850
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
450 AM AST WED AUG 20 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 19 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 93R 2:57 PM 93 1991 89 4 91
2020
2025
MINIMUM 81 6:02 AM 73 1956 78 3 81
AVERAGE 87 84 3 86
PRECIPITATION (IN)
YESTERDAY 0.08 1.35 1926 0.21 -0.13 0.01
MONTH TO DATE 5.45 3.66 1.79 7.03
SINCE JUN 1 15.03 14.34 0.69 15.20
SINCE JAN 1 39.43 33.31 6.12 48.08
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 22 18 4 21
MONTH TO DATE 368 342 26 402
SINCE JUN 1 1481 1448 33 1688
SINCE JAN 1 3805 3581 224 4200
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82
LOWEST 52
AVERAGE 67
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 96 1980
MINIMUM TEMPERATURE (F) 78 69 1904
SUNRISE AND SUNSET
AUGUST 20 2025........SUNRISE 6:07 AM AST SUNSET 6:47 PM AST
AUGUST 21 2025........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.
$$