Point Forecast Matrices
Issued by NWS San Juan, PR

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FOCA52 TJSJ 091452
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Point Forecast Matrices
National Weather Service San Juan PR
1052 AM AST Thu Oct 9 2025

PRZ001-092015-
Luis Munoz Marin International Airport-San Juan
18.43N  66.00W Elev. 9 ft
1052 AM AST Thu Oct 9 2025

Date             Thu 10/09/25            Fri 10/10/25            Sat 10/11/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      91          79          91          79          91
Temp                90 91 85 82 80 79 79 85 90 91 85 82 80 79 79 85 90 91 85 82
Dewpt               76 77 75 76 75 75 75 75 75 76 76 75 75 75 75 76 76 76 76 75
RH                  64 64 72 82 85 88 88 72 62 62 75 79 85 88 88 75 64 62 75 79
Wind dir             E  E SE  E SE SW SW SW  N NW  N  S  S  S  S  S SE SE SE SE
Wind spd             6  8  4  1  2  1  1  1  6  6  5  5  4  4  4  3  3  4  3  3
Clouds              SC B1 B2 B1 B2 B2 SC B1 B1 B1 OV B1 B1 B2 B2 SC SC OV OV SC
PoP 12hr                     50          50          70          60          80
QPF 12hr                   0.72        0.31        1.81        0.41        1.23
Rain shwrs           C  C  L  C  C  C  C  C  C  C  L  C  C  L  L  S  S  D  D  C
Tstms                   S  S                       S     S  S  S        S  S
Heat index         102104 94 89 85       93101104 94 89 85       94102103 94 89
Max heat              104   102    87    93   104   102    87    94   103   102
Heat                 Y  Y


Date          Sun 10/12/25  Mon 10/13/25  Tue 10/14/25  Wed 10/15/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          78    92      78    92      78    91      78    92
Temp          79 86 92 82   79 86 92 82   79 85 91 82   79 86 92 82
Dewpt         75 75 75 74   74 75 75 74   75 74 75 75   74 74 75 74
PWind dir        SE    SE      SE     E       E    SE       S     S
Wind char        LT    LT      LT    GN      LT    GN      LT    LT
Avg clouds    SC SC SC SC   FW SC SC FW   FW FW SC FW   CL FW SC B1
PoP 12hr         50    50      40    40      10    20      20    50
Rain shwrs     C  C  C  C    S  C  C  S    S  S  S  S       S  C  C
Tstms                                                          S  S

$$
PRZ002-092015-
Roosevelt Roads Naval Airstation-Ceiba PR
18.25N  65.63W Elev. 39 ft
1052 AM AST Thu Oct 9 2025

Date             Thu 10/09/25            Fri 10/10/25            Sat 10/11/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      89          76          90          74          90
Temp                88 89 83 81 79 78 77 84 89 90 84 82 80 79 78 85 89 90 85 82
Dewpt               78 77 77 77 77 76 76 77 77 77 77 77 76 76 76 78 78 77 77 76
RH                  72 68 82 88 94 94 97 80 68 66 80 85 88 91 94 80 70 66 77 82
Wind dir            SE SE SE  N NE  N  W SW  S  S SW  S  S  S  S  S  S  S  S  S
Wind spd             8  6  4  4  5  5  5  6  4  4  4  4  3  4  9  8 10 10  9  9
Clouds              SC SC B1 B1 B2 B2 B2 B2 B1 B2 OV B2 B1 B2 B2 B2 B2 OV OV B2
PoP 12hr                     40          50          70          60          70
QPF 12hr                   0.12        0.41        1.82        0.47        0.97
Rain shwrs           C  C  C  C  C  C  C  C  C  L  L  C  C  L  L  C  C  L  L  C
Tstms                                           S  S  S  S  S  S  S  S  S  S  S
Heat index         101102 92 88          94102103 94 90 86       96103103 96 89
Max heat              103   100    86    94   103   102    88    96   104   102
Heat                 Y  Y


Date          Sun 10/12/25  Mon 10/13/25  Tue 10/14/25  Wed 10/15/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          76    90      77    89      77    89      78    89
Temp          80 85 90 82   79 84 89 81   79 84 89 81   79 84 89 81
Dewpt         75 77 76 75   75 76 76 76   76 76 76 76   75 77 76 76
PWind dir        SE    SE       E     E       E    SE      SE     S
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B1 SC FW   FW SC SC FW   CL FW SC FW   CL FW SC SC
PoP 12hr         50    50      30    30      20    20      30    30
Rain shwrs     C  C  C  S    S  C  C  S       S  S  S       C  C  C
Tstms          S  S

$$
PRZ007-092015-
Mercedita Airport-Ponce PR
18.02N  66.56W Elev. 26 ft
1052 AM AST Thu Oct 9 2025

Date             Thu 10/09/25            Fri 10/10/25            Sat 10/11/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      90          77          90          77          90
Temp                89 90 83 80 78 77 77 84 89 90 83 80 78 77 77 84 89 90 84 81
Dewpt               72 73 74 73 73 72 71 71 72 74 74 73 73 73 73 74 72 73 73 72
RH                  57 58 74 79 85 85 82 65 57 60 74 79 85 87 87 72 57 58 70 74
Wind dir            SE SE SE  N  N  N  N  N  S  S  S SE NE SE SE SE SE  S SE SE
Wind spd             6  6  3  3  3  3  3  2  4 10  5  3  2  3  2  1  5  6  2  2
Clouds              FW B1 B1 SC FW SC SC SC SC B1 OV B2 SC SC SC B1 B1 B2 B2 SC
PoP 12hr                     40          10          80          50          50
QPF 12hr                   0.12        0.02        1.91        0.37        0.38
Rain shwrs              C  C  S     S  S  S  S  C  D  C  S  C  C  C  C  C  C  C
Tstms                                              S  S                 S  S
Heat index          96 99 90 84          89 96 99 90 84          91 96 98 90 85
Max heat               99    98    84    89    99    98    84    91    98    97
Heat                 Y  Y


Date          Sun 10/12/25  Mon 10/13/25  Tue 10/14/25  Wed 10/15/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          76    90      76    90      76    90      76    90
Temp          78 84 90 80   77 84 90 80   77 84 90 80   77 84 90 80
Dewpt         73 73 72 72   71 70 74 71   70 71 73 72   72 72 70 70
PWind dir         E     E       E     E      NE     E       E     S
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC FW FW   FW SC SC FW   CL FW FW FW   FW SC SC SC
PoP 12hr         30    20      30    30       0     5      30    30
Rain shwrs     C  C  S  S    S  C  C  S          S  S       C  C  S

$$
PRZ008-092015-
Rafael Hernandez Airport-Aguadilla PR
18.50N  67.13W Elev. 237 ft
1052 AM AST Thu Oct 9 2025

Date             Thu 10/09/25            Fri 10/10/25            Sat 10/11/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      87          76          87          77          88
Temp                86 87 82 79 78 77 76 82 86 87 82 79 78 77 77 83 87 88 82 80
Dewpt               76 76 74 75 76 74 73 76 77 77 75 75 76 74 73 75 77 77 75 75
RH                  72 70 77 88 94 90 90 82 75 72 79 88 94 90 87 77 72 70 79 85
Wind dir             N NW NE  N  E SE  S  S  W  W SW  S  S  S  S  S  S  S  S SE
Wind spd             3  8  4  4  5  4  5  5  5  8  5  2  1  3  3  5  6 12 10  8
Clouds              CL B1 B1 CL CL FW FW FW FW SC B1 CL SC SC SC SC SC SC SC SC
PoP 12hr                     40           5          40          20          20
QPF 12hr                   0.09        0.01        0.21        0.04        0.11
Rain shwrs              C  C              S  S  C  C     S  S  S  S  S  S  S  S
Heat index          96 98 88             89 97 98 89             90 98100 89 85
Max heat               98    95          89    98    96          90   100    98
Heat                 Y  Y


Date          Sun 10/12/25  Mon 10/13/25  Tue 10/14/25  Wed 10/15/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          75    88      76    87      76    88      76    88
Temp          77 83 88 80   77 82 87 79   77 83 88 80   77 83 88 80
Dewpt         74 75 76 75   73 74 76 75   73 74 75 75   74 75 76 74
PWind dir        SE     E       E     E       E    NE      SE     S
Wind char        LT    LT      LT    GN      GN    LT      LT    GN
Avg clouds    SC FW SC B2   B2 B1 SC B1   SC SC SC B1   SC SC SC B1
PoP 12hr         10    60      60    60      40    50      30    50
Rain shwrs     S  S  L  L    L  L  L  L    C  C  C  C    C  C  C  C
Tstms                S  S    S  S  S  S          S  S          S  S

$$
PRZ010-092015-
Eugenio Maria de Hosto Airport-Mayaguez PR
18.27N  67.15W Elev. 28 ft
1052 AM AST Thu Oct 9 2025

Date             Thu 10/09/25            Fri 10/10/25            Sat 10/11/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      92          74          92          76          92
Temp                91 92 83 79 77 75 74 84 91 92 84 80 78 76 76 85 91 92 84 80
Dewpt               78 79 77 76 75 75 74 77 79 79 77 77 76 75 75 77 79 78 77 76
RH                  66 66 82 91 94100100 80 68 66 80 91 94 97 97 77 68 64 80 88
Wind dir             W  W  N NE NE  E  N SE SW SW SW  S SE SE SE SE  S  S  S SE
Wind spd             4  5  5  5  5  4  5  4  2  6  4  2  2  3  3  3  6 11  9  6
Clouds              CL B2 B2 CL CL FW FW FW SC SC B2 FW FW SC SC SC SC SC SC SC
PoP 12hr                     50           5          50          20          30
QPF 12hr                   0.67        0.01        0.63        0.04        0.17
Rain shwrs              L  L                 S  C  C        S  S  S  S  C  C  S
Tstms                   S  S                       S
Heat index         105108 92             94107109 94 86          95108108 94 86
Max heat              108   105          94   109   105          95   109   104
Heat                 Y  Y


Date          Sun 10/12/25  Mon 10/13/25  Tue 10/14/25  Wed 10/15/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          74    92      74    92      74    92      74    92
Temp          76 85 92 79   75 84 92 79   75 84 92 79   75 84 92 79
Dewpt         75 76 78 76   74 76 77 76   74 75 78 76   74 77 78 75
PWind dir        SE    SE       E     E       E    SE      SE     S
Wind char        LT    LT      LT    LT      LT    LT      LT    GN
Avg clouds    SC FW SC B2   B2 B1 SC B1   SC SC SC B1   SC SC SC SC
PoP 12hr         10    60      60    60      50    50      30    30
Rain shwrs     S  S  L  L    L  L  L  L    C  C  C  C    C  C  C  C
Tstms                S  S    S  S  S  S          S  S

$$
VIZ001-092015-
CYRIL E. King Airport-St Thomas USVI
18.33N  64.97W Elev. 23 ft
1052 AM AST Thu Oct 9 2025

Date             Thu 10/09/25            Fri 10/10/25            Sat 10/11/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      91          80          91          81          91
Temp                90 91 87 85 84 83 82 87 90 91 86 84 83 82 81 87 90 91 87 85
Dewpt               78 77 77 76 78 77 77 77 79 78 78 77 77 77 77 78 79 78 78 77
RH                  68 64 72 75 82 82 85 72 70 66 77 80 82 85 88 75 70 66 75 77
Wind dir             E SE  E NE NE  N  W SW SW  S  S  S  S  S  S  S  S SE SE SE
Wind spd             9  4  5  8 10  8  9 10  9 11 12 12 11 11 14 16 16 13 14 14
Clouds              SC SC B1 B2 B2 B2 B2 B2 B2 OV OV OV B2 OV OV B2 B2 OV OV B2
PoP 12hr                     50          50          70          70          70
QPF 12hr                   0.12        0.43        0.87        0.70        0.62
Rain shwrs           C  C  C  C  C  C  C  C  C  L  L  L  L  L  L  L  L  L  L  C
Tstms                                           S  S  S  S  S  S  S  S  S  S  S
Heat index         104105 99 95 95 92 90 99105105 98 94 92 90 88100105106 99 95
Max heat              105   103    95    99   106   104    94   100   107   104
Heat                 Y  Y


Date          Sun 10/12/25  Mon 10/13/25  Tue 10/14/25  Wed 10/15/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          78    91      80    91      79    91      82    90
Temp          83 87 91 84   82 87 91 84   82 87 91 85   83 86 90 84
Dewpt         77 77 76 77   76 76 77 77   76 77 76 76   76 77 77 77
PWind dir        SE    SE       E     E       E    SE      SE     S
Wind char        GN    GN      GN    GN      GN    LT      LT    GN
Avg clouds    B2 B2 B1 SC   SC SC FW FW   CL FW SC FW   CL FW SC SC
PoP 12hr         60    60      40    20      20    20      20    20
Rain shwrs     C  L  L  C    C  C  S  S       S  S  S       S  S  S
Tstms          S  S     S    S  S

$$
VIZ002-092015-
Henry E. Rohlsen Airport-St Croix USVI
17.70N  64.80W Elev. 74 ft
1052 AM AST Thu Oct 9 2025

Date             Thu 10/09/25            Fri 10/10/25            Sat 10/11/25
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      90          77          90          80          89
Temp                89 90 84 81 79 78 77 84 89 90 84 81 80 80 80 84 88 89 84 81
Dewpt               77 77 77 76 76 76 76 77 77 77 77 77 77 77 76 77 77 77 76 76
RH                  68 66 80 85 91 94 97 80 68 66 80 88 91 91 88 80 70 68 77 85
Wind dir             E SE NE  N  N NE SW SW  S  S  S  S  S  S  S SE SE  S SE  E
Wind spd             8  4  4  6  8  6  6  8  9 10  9 10 10 12 14 13 13 13 12 10
Clouds              SC SC B1 B2 B2 B2 B2 B2 B2 OV OV OV B2 OV OV B2 B2 OV OV B2
PoP 12hr                     50          50          70          70          70
QPF 12hr                   0.12        0.43        0.87        0.70        0.62
Rain shwrs           C  C  C  C  C  C  C  C  C  L  L  L  L  L  L  L  L  L  L  C
Tstms                                           S  S  S  S  S  S  S  S  S  S  S
Heat index         101103 93 88          94102103 94 88 86 86 86 94100102 93 87
Max heat              103   101    86    94   103   101    86    94   102   100
Heat                 Y  Y


Date          Sun 10/12/25  Mon 10/13/25  Tue 10/14/25  Wed 10/15/25
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          78    90      76    89      76    90      78    90
Temp          79 85 90 82   79 84 89 81   78 84 90 82   79 85 90 81
Dewpt         76 77 76 76   75 76 76 76   76 76 76 76   76 77 76 76
PWind dir         E     E       E     E       E    SE      SE     S
Wind char        GN    GN      GN    GN      GN    LT      LT    GN
Avg clouds    B2 B2 B2 B2   B2 B1 FW FW   CL FW SC FW   CL FW SC SC
PoP 12hr         60    60      60    20      10    10      10    20
Rain shwrs     C  L  L  L    L  L  S  S       S  S  S       S  S  S
Tstms          S  S  S  S    S  S

$$