• 000 FZNT26 KNHC 212123 OFFN05 NAVTEX MARINE FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 423 PM EST FRI NOV 21 2014 ...PLEASE REFER TO COASTAL WATERS FORECASTS (CWF) AVAILABLE THROUGH NOAA WEATHER RADIO AND OTHER MEANS FOR DETAILED COASTAL WATERS FORECASTS... .SYNOPSIS...A NEW AREA OF HIGH PRESSURE WILL EXIT THE MID-ATLANTIC STATES ON SATURDAY WITH LOCAL PRESSURE GRADIENT TIGHTENING AND TRADE WINDS STRENGTHENING FURTHER. WINDS AND SEAS WILL BEGIN TO SUBSIDE ON WEDNESDAY. SAN JUAN ATLANTIC WATERS .TONIGHT...E WINDS 15 TO 20 KT. SEAS 7 TO 8 FT. .SAT...E WINDS 15 TO 20 KT. SEAS 7 TO 8 FT. SCATTERED SHOWERS AND ISOLATED TSTMS. .SAT NIGHT...E WINDS 15 TO 20 KT. SEAS 8 TO 9 FT IN E SWELL. SCATTERED SHOWERS AND ISOLATED TSTMS. .SUN...E WINDS 15 TO 20 KT. SEAS 7 TO 9 FT IN E SWELL. .SUN NIGHT...E WINDS 15 TO 20 KT. SEAS 8 TO 9 FT IN E SWELL. .MON...E WINDS 15 TO 20 KT. SEAS 7 TO 9 FT IN E SWELL. .MON NIGHT...E WINDS 15 TO 20 KT. SEAS 8 TO 9 FT IN E SWELL. .TUE...E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT IN E SWELL. .TUE NIGHT...E WINDS 15 TO 20 KT. SEAS 8 TO 10 FT IN E SWELL. .WED...E WINDS 15 TO 20 KT. SEAS 7 TO 10 FT IN E SWELL. .WED NIGHT...E WINDS 15 TO 20 KT. SEAS 7 TO 9 FT IN E SWELL. SAN JUAN CARIBBEAN WATERS .TONIGHT...E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. SCATTERED SHOWERS AND ISOLATED TSTMS. .SAT...E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. SCATTERED SHOWERS AND ISOLATED TSTMS. .SAT NIGHT...E WINDS 20 TO 25 KT...DIMINISHING TO 15 TO 20 KT AFTER MIDNIGHT. SEAS 6 TO 9 FT. SCATTERED SHOWERS AND ISOLATED TSTMS. .SUN...E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN E SWELL. .SUN NIGHT...E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN E SWELL. .MON...E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN E SWELL. .MON NIGHT...E WINDS 20 TO 25 KT. SEAS 6 TO 9 FT IN E SWELL. .TUE...E WINDS 15 TO 20 KT. SEAS 7 TO 9 FT IN E SWELL. .TUE NIGHT...E WINDS 15 TO 20 KT. SEAS 6 TO 9 FT IN E SWELL. .WED...E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT. .WED NIGHT...E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.

San Juan Puerto Rico

Weather

Weather

National Weather Service Statistics for San Juan, Puerto Rico

Average Temperature

ANNUAL 

JAN 

FEB 

MAR 

APR 

MAY 

JUN 

JUL 

AUG 

SEP 

OCT 

NOV 

DEC 

F

80.2

76.9

77.1

78.1

79.4

80.9

82.4

82.6

82.8

82.6

81.9

79.9

78

Average High Temperature

ANNUAL 

JAN 

FEB 

MAR 

APR 

MAY 

JUN 

JUL 

AUG 

SEP 

OCT 

NOV 

DEC 

F

86.4

83.1

83.6

84.7

85.8

87.2

88.6

88.5

88.8

88.9

88.3

85.9

83.9

Average Low Temperature

ANNUAL 

JAN 

FEB 

MAR 

APR 

MAY 

JUN 

JUL 

AUG 

SEP 

OCT 

NOV 

DEC 

F

74

70.7

70.6

71.4

72.9

74.7

76.1

76.7

76.8

76.3

75.5

73.9

72.2

Average Precipitation

ANNUAL 

JAN 

FEB 

MAR 

APR 

MAY 

JUN 

JUL 

AUG 

SEP 

OCT 

NOV 

DEC 

in.

55

3.4

2.2

2.2

4.2

5.8

4.5

4.8

5.6

5.8

5.6

6.1

4.8

Average Number of Days With Precipitation

ANNUAL 

JAN 

FEB 

MAR 

APR 

MAY 

JUN 

JUL 

AUG 

SEP 

OCT 

NOV 

DEC 

Days

198

17

13

12

13

16

15

19

19

17

17

19

19

Hurricane Season extends from August through November with September being the most active month for hurricanes. Hurricanes are generally predicted several days in advance.

A cyclone of tropical storm strength passes near Puerto Rico, on average, every 5 years.  A hurricane passes in the vicinity of the island, on average, every 11 years. Only one category 5 hurricane has struck the island since 1851.

 

Puerto Rico Weather