Point Forecast Matrices
Issued by NWS San Juan, PR

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Point Forecast Matrices
National Weather Service San Juan PR
503 PM AST Sun Oct 5 2025

PRZ001-060800-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
503 PM AST Sun Oct 5 2025

Date           10/05/25      Mon 10/06/25            Tue 10/07/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      78          91          78          91          77
Temp             82 80 79 78 85 90 91 85 82 80 79 78 85 90 91 84 81 79 78 77 85
Dewpt            75 75 75 74 74 75 75 75 75 75 75 74 75 76 76 76 75 75 75 75 75
RH               79 85 88 88 70 62 60 72 79 85 88 88 72 64 62 77 82 88 91 94 72
Wind dir          E  E  E  E  E NE NE NE  E  E  E SE  E  E  E  E  E SE SE SE SE
Wind spd          5  6  6  6  5 10 11 11  9  9  6  4  5  9 10  8  6  3  4  4  5
Clouds           B2 B1 B2 B2 B1 B1 SC SC B1 SC B1 B1 B1 B1 B2 B2 SC SC SC SC CL
PoP 12hr                     60          40          40          60          20
QPF 12hr                   0.21        0.25        0.17        0.57        0.02
Rain shwrs        L  C  C  C  C  C  C  C  C  C  C  C  C  C  L  L  S  S  S  S
Tstms             S     S  S                                S  S
Heat index       88 85       93101102 93 88 85       94102103 93 87 84       93
Max heat         94    87    93   103   100    87    94   103   102    86    93
Coast Flood
High Surf         Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           10/08  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25  Sun 10/12/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      78    91      78    90      78    91      77    90
Temp          91 82   79 85 91 82   79 85 90 82   79 85 91 81   78 84 90 82
Dewpt         75 75   75 75 76 76   75 75 76 75   75 75 75 74   74 75 76 75
PWind dir        SE      SE     E      SE     E      SE    SE      SE    SE
Wind char        GN      LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    FW SC   B1 B1 B1 B1   SC B1 B1 B1   B1 B1 B1 B1   SC SC B1 B2
PoP 12hr         40      40    40      40    40      40    40      30    50
Rain shwrs     S  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms                        S  S             S    S  S  S  S          S  S

$$
PRZ002-060800-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
503 PM AST Sun Oct 5 2025

Date           10/05/25      Mon 10/06/25            Tue 10/07/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      77          89          78          89          78
Temp             81 79 78 77 84 88 89 84 81 80 79 78 84 88 89 84 81 80 79 78 84
Dewpt            76 76 76 76 77 77 77 77 76 76 76 76 77 77 77 76 76 76 76 75 77
RH               85 91 94 97 80 70 68 80 85 88 91 94 80 70 68 77 85 88 91 91 80
Wind dir         NE NE NE NE NE NE NE NE NE NE NE  E NE  E  E SE  E SE SE SE SE
Wind spd          6  8  8  6  8 10 10 10 10  9  6  5  8  9  9  6  5  6  5  6  9
Clouds           B2 B2 B2 B1 SC B2 B2 B1 B1 B1 B2 B2 B2 B2 SC SC B2 B2 B2 B2 SC
PoP 12hr                     60          50          60          60          50
QPF 12hr                   0.30        0.32        0.24        0.29        0.21
Rain shwrs        C  L  L  C  C  C  C  C  C  C  L  L  L  L  C  C  C  C  C  C  S
Tstms             S  S  S        S  S           S  S  S  S        S  S  S  S
Heat index       87 84       93100101 93 88 85       94100101 92 88 85       94
Max heat         92    86    93   101   101    87    94   102   100    87    94
Coast Flood
High Surf         Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           10/08  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25  Sun 10/12/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          89      78    89      78    89      77    88      77    89
Temp          89 81   79 84 89 81   79 84 89 81   78 83 88 80   78 84 89 81
Dewpt         76 76   76 78 77 77   76 77 77 76   76 76 76 75   75 76 77 75
PWind dir        SE       E     E       E     E      SE    SE      SE    SE
Wind char        GN      LT    LT      LT    GN      LT    LT      LT    GN
Avg clouds    SC B1   B2 B1 B1 B1   B1 B1 B1 B1   B1 B1 B1 B1   SC SC B1 B2
PoP 12hr         50      50    40      40    40      40    50      30    50
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms                        S  S    S  S     S    S  S  S  S          S  S

$$
PRZ007-060800-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
503 PM AST Sun Oct 5 2025

Date           10/05/25      Mon 10/06/25            Tue 10/07/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      76          91          75          90          76
Temp             81 79 77 76 84 90 91 83 80 78 76 75 83 89 90 83 80 78 77 76 84
Dewpt            76 75 73 73 75 77 78 77 76 75 74 72 75 77 78 78 77 76 74 73 76
RH               85 88 87 90 74 66 66 82 88 91 94 90 77 68 68 85 91 94 90 90 77
Wind dir         NE  N NE NE NE  E SE NW  N  N NE NE NE SE SE SE  E  E  E  E  E
Wind spd          2  4  4  4  3 10 12  4  4  4  4  3  2 10  9  6  6  4  4  4  5
Clouds           OV SC SC SC SC SC OV OV OV SC SC SC FW FW B2 B2 SC SC SC SC CL
PoP 12hr                     70          90          70          50           5
QPF 12hr                   0.27        1.28        0.32        0.25        0.01
Rain shwrs        L  S  S           D  D  L  S  S  S        C  C  S  S  S  S
Tstms             S                 S  S  S                 S  S
Heat index       87          93103106 92 85          91101104 93 87          93
Max heat         93    85    93   106   104          91   104   103    84    93


Date           10/08  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25  Sun 10/12/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          90      76    91      76    90      76    89      76    89
Temp          90 80   77 84 91 81   77 84 90 80   77 83 89 80   77 83 89 80
Dewpt         78 77   73 75 78 77   74 76 78 77   74 76 78 76   74 76 71 71
PWind dir        SE      NE     E      NE     E      NE    SE       E     E
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    CL FW   SC SC SC SC   SC FW SC B1   SC SC B1 B1   SC SC SC SC
PoP 12hr         30      30    40      10    60      20    60      20    20
Rain shwrs        C    C  C  C  C    S  S  L  L    S  S  L  L    S  S  S  S
Tstms                        S  S          S  S          S  S

$$
PRZ008-060800-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
503 PM AST Sun Oct 5 2025

Date           10/05/25      Mon 10/06/25            Tue 10/07/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      76          87          76          87          76
Temp             79 78 77 76 82 86 87 82 79 78 77 76 82 86 87 82 79 78 77 76 82
Dewpt            74 75 74 73 75 77 76 74 75 75 74 73 75 77 76 75 75 75 74 72 75
RH               85 91 90 90 79 75 70 77 88 91 90 90 79 75 70 79 88 91 90 87 79
Wind dir          E  E  E  E  E  E NE NE  E  E  E  E  E  E  E  E  E  E SE SE SE
Wind spd         10 11 10 10 11 12 14 13 14 13 11 11 11 12  6  6  5  3  3  5  4
Clouds           B2 SC SC SC SC SC SC SC SC SC CL CL FW FW OV OV B2 B2 B2 B2 FW
PoP 12hr                     50          30          30          70          60
QPF 12hr                   0.06        0.08        0.02        1.14        0.25
Rain shwrs        C     S  S  S  S  S  C  S  C              L  L  L  L  L  L
Tstms             S                                         S  S  S  S  S  S
Heat index       83          89 97 97 87 83          89 97 97 88 83          89
Max heat         87          89    97    95          89    98    96          89
Coast Flood
High Surf         Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           10/08  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25  Sun 10/12/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          87      76    88      77    87      76    87      76    87
Temp          87 79   77 83 88 80   78 83 87 79   77 82 87 79   77 82 87 79
Dewpt         76 75   74 75 76 75   74 76 77 75   74 75 75 74   74 75 76 74
PWind dir        NE       E    NE       E    NE       E     S      SE    SE
Wind char        LT      LT    LT      LT    GN      LT    LT      LT    GN
Avg clouds    SC SC   FW FW SC B1   SC SC SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         50       0    50      20    20      20    20      20    30
Rain shwrs     C  C          C  C    S  S  S  S    S  S  S  S    S  S  C  C
Tstms          S  S          S  S

$$
PRZ010-060800-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
503 PM AST Sun Oct 5 2025

Date           10/05/25      Mon 10/06/25            Tue 10/07/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      74          93          74          93          74
Temp             80 77 75 74 85 91 93 84 80 77 75 74 85 91 93 84 80 77 75 74 84
Dewpt            76 75 74 74 76 77 78 77 76 75 74 74 76 77 78 77 76 76 74 74 76
RH               88 94 97100 75 64 62 80 88 94 97100 75 64 62 80 88 97 97100 77
Wind dir         NE NE  E  E  E  E  N NE NE NE NE  E  E  E  E  E  E  E SE SE SE
Wind spd          8  9  8  5  4  2  4  6  9  9  6  6  5  2  4  3  5  5  6  6  5
Clouds           SC SC SC SC SC SC B2 OV B1 SC CL CL FW FW OV OV B1 B1 B1 B1 FW
PoP 12hr                     30          70          40          80          40
QPF 12hr                   0.02        0.66        0.04        1.27        0.17
Rain shwrs        C                 L  L  C  S              D  D  C  C  C  C
Tstms                               S  S                    S  S
Heat index       85          94105108 93 85          94105108 93 85          93
Max heat         92          94   109   106          94   109   106          93
High Surf         Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           10/08  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25  Sun 10/12/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          92      75    93      75    93      74    92      75    92
Temp          92 80   76 85 93 80   76 85 93 80   75 84 92 80   76 85 92 80
Dewpt         78 77   75 75 78 77   75 76 79 77   75 76 78 76   75 76 78 75
PWind dir        SE       E    SW       E     E       E    SE      SE    SE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    SC SC   FW FW SC B1   FW FW SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         40       5    60      20    40      20    20      20    20
Rain shwrs     C  C          L  L       S  C  C    S  S  S  S    S  S  S  S
Tstms          S  S          S  S          S  S

$$
VIZ001-060800-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
503 PM AST Sun Oct 5 2025

Date           10/05/25      Mon 10/06/25            Tue 10/07/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      82          91          81          91          81
Temp             85 84 83 82 87 90 91 86 84 83 82 81 87 90 91 86 84 83 82 81 87
Dewpt            77 77 77 76 77 77 77 77 78 78 77 77 78 77 78 78 77 77 77 77 77
RH               77 80 82 82 72 66 64 75 82 85 85 88 75 66 66 77 80 82 85 88 72
Wind dir         NE NE  E  E  E  E NE NE NE  E  E  E  E  E SE SE SE SE SE SE SE
Wind spd         12 14 16 13 14 13 14 14 14 16 11 11 11 10 10 10 11 11 11 12 13
Clouds           B2 B1 B1 B2 B1 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC
PoP 12hr                     50          60          60          60          40
QPF 12hr                   0.18        0.46        0.26        0.38        0.19
Rain shwrs        C  C  C  C  C  C  L  C  C  C  L  L  L  L  C  C  C  C  C  C  C
Tstms             S        S     S  S     S  S  S  S  S  S  S  S
Heat index       95 93 91 89 99104104 97 95 92 90 88 99103106 99 94 91 90 88 98
Max heat         98    94    99   104   103    94    99   106   105    93    98
High Surf         Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           10/08  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25  Sun 10/12/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          91      82    91      82    91      81    91      82    90
Temp          91 85   83 87 91 85   83 87 91 84   82 87 91 85   83 86 90 84
Dewpt         77 77   78 78 78 77   77 78 78 77   77 77 77 77   77 78 77 76
PWind dir        SE       E     E       E     E      SE    SE      SE    SE
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC B1   B2 B1 B1 B1   B1 B1 B1 B1   B2 B1 B1 B1   SC B1 B1 SC
PoP 12hr         50      50    40      40    50      50    50      40    40
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  S
Tstms                           S    S  S  S  S    S  S  S  S

$$
VIZ002-060800-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
503 PM AST Sun Oct 5 2025

Date           10/05/25      Mon 10/06/25            Tue 10/07/25            Wed
AST 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12

Min/Max                      77          90          77          89          78
Temp             81 79 78 77 84 89 90 84 81 79 78 77 84 88 89 84 81 80 79 78 85
Dewpt            76 75 76 76 77 77 77 77 76 76 76 76 77 77 77 76 76 76 76 75 77
RH               85 88 94 97 80 68 66 80 85 91 94 97 80 70 68 77 85 88 91 91 77
Wind dir         NE NE  E NE  E  E  E NE NE NE  E  E  E SE SE SE  E SE SE SE SE
Wind spd          9 13 13 11 12 13 12 11 10 11  9  8  9 10  9 10  5  9 10 10 10
Clouds           B1 B1 B1 B1 B1 B1 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 SC SC SC SC SC
PoP 12hr                     40          60          60          60          30
QPF 12hr                   0.10        0.38        0.30        0.35        0.03
Rain shwrs        C  C  C  C  C  C  C  L  L  C  L  L  L  L  C  C  S  S  S  S  C
Tstms                               S  S  S     S  S  S  S  S  S
Heat index       87 83       94102103 93 87 84       93100101 92 88 85       95
Max heat         92    86    94   103   102    86    93   102   100    87    95
High Surf         Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y  Y


Date           10/08  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25  Sun 10/12/25
AST 6hrly     14 20   02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          90      77    90      77    90      76    89      77    89
Temp          90 81   78 84 90 81   78 84 90 80   77 83 89 81   78 84 89 81
Dewpt         77 76   77 78 78 77   76 77 78 76   76 77 77 76   76 77 77 75
PWind dir        SE       E     E       E     E      SE    SE      SE    SE
Wind char        GN      GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    SC B1   B1 B1 SC B1   B1 B1 SC SC   SC B1 B1 B1   SC SC SC SC
PoP 12hr         40      40    40      40    30      40    50      30    30
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  S
Tstms                           S    S  S                S  S

$$