941
FOCA52 TJSJ 180903
PFMSJU
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
503 AM AST THU DEC 18 2025
PRZ001-182000-
LUIS MUNOZ MARIN INTERNATIONAL AIRPORT-SAN JUAN
18.43N 66.00W ELEV. 9 FT
503 AM AST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
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 86 74 86 74 85
TEMP 78 85 86 80 77 76 75 74 79 85 86 80 77 76 75 74 78 84 85 80 77
DEWPT 69 70 72 73 73 72 71 71 70 70 70 71 71 71 71 70 71 71 71 71 71
RH 74 61 63 79 87 87 87 90 74 61 59 74 82 85 87 87 79 65 63 74 82
WIND DIR E E E E E E E E E E E E E E E E E E E E E
WIND SPD 9 11 13 12 9 10 9 10 10 13 12 10 8 6 9 8 8 12 12 11 9
CLOUDS CL CL SC SC B2 B2 B2 SC SC FW SC SC SC SC B1 B1 SC SC SC SC SC
POP 12HR 50 60 20 40 30
QPF 12HR 0.14 0.42 0.03 0.05 0.07
RAIN SHWRS C S C L L C S S S S S S C C S S C C C
HEAT INDEX 89 92 84 89 90 83 89 90 83
MAX HEAT 92 90 91 88 90 88
HIGH SURF Y Y Y Y
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
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 86 74 86 73 85 73 84
TEMP 75 79 86 77 75 79 86 77 74 78 85 76 74 77 84 75
DEWPT 71 71 72 72 72 71 70 71 70 70 70 70 70 70 70 69
PWIND DIR E E E E NE NE NE NE
WIND CHAR GN GN LT GN GN GN GN GN
AVG CLOUDS SC SC SC B1 B2 B1 SC SC SC SC SC SC SC B1 B2 B2
POP 12HR 30 40 40 50 50 50 50 60
RAIN SHWRS C C C C C C C C C C C C C C L L
TSTMS S S
PRZ002-182000-
ROOSEVELT ROADS NAVAL AIRSTATION-CEIBA PR
18.25N 65.63W ELEV. 39 FT
503 AM AST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
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 85 75 84 74 84
TEMP 78 84 85 80 78 77 76 75 79 83 84 79 77 76 75 74 78 83 84 79 77
DEWPT 71 73 73 73 73 73 72 71 72 72 72 71 72 71 72 71 72 72 72 72 72
RH 79 70 67 79 85 87 87 87 79 70 67 77 85 85 90 90 82 70 67 79 85
WIND DIR E E E E E E E E E E E NE NE NE NE NE E E E NE NE
WIND SPD 10 11 12 11 11 11 11 11 11 13 12 10 9 9 10 9 9 12 12 11 10
CLOUDS SC SC SC SC B2 B2 B2 SC SC FW SC SC SC SC B1 B1 CL CL SC SC SC
POP 12HR 50 60 10 40 30
QPF 12HR 0.15 0.36 0.02 0.05 0.06
RAIN SHWRS S S C C C L L S S S S S S S C C C C C
HEAT INDEX 90 91 84 88 89 88 89
MAX HEAT 92 90 90 87 90 87
HIGH SURF Y Y Y Y
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
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 84 74 84 73 83 73 83
TEMP 75 78 84 77 75 78 84 76 74 77 83 76 74 77 83 75
DEWPT 72 73 73 73 72 72 72 71 71 71 71 71 71 71 71 70
PWIND DIR E E E E NE NE NE NE
WIND CHAR GN GN GN GN GN GN GN GN
AVG CLOUDS SC B1 B1 B1 B2 B1 SC SC SC SC SC SC SC B1 B2 B2
POP 12HR 40 40 40 50 50 50 50 60
RAIN SHWRS C C C C C C C C C C C C C C L L
TSTMS S S
PRZ007-182000-
MERCEDITA AIRPORT-PONCE PR
18.02N 66.56W ELEV. 26 FT
503 AM AST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
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 88 72 87 70 88
TEMP 78 86 88 80 77 75 73 72 78 85 86 79 75 73 71 70 77 86 88 80 77
DEWPT 70 71 72 73 72 71 70 69 71 71 72 72 71 69 69 68 71 72 73 73 71
RH 76 61 59 79 85 87 90 90 79 63 63 79 87 87 93 93 82 63 61 79 82
WIND DIR NE E SE E NE NE NE NE NE E E E NE NE NE NE NE E E E NE
WIND SPD 5 12 13 11 6 5 4 3 4 12 14 9 6 5 5 4 5 11 14 11 6
WIND GUST 25 25
CLOUDS CL CL FW SC CL CL CL FW CL CL SC SC CL CL CL CL CL CL SC SC CL
POP 12HR 5 5 10 0 20
QPF 12HR 0.01 0.01 0.01 0 0.02
RAIN SHWRS S S S S S S S
HEAT INDEX 92 94 84 91 93 92 95 84
MAX HEAT 96 93 94 90 96 92
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
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 72 87 72 87 71 87 71 86
TEMP 73 78 87 76 73 78 87 76 72 77 87 76 72 77 86 75
DEWPT 69 71 73 72 70 72 74 71 69 71 72 70 69 70 72 70
PWIND DIR NE E NE E NE NE NE NE
WIND CHAR LT GN LT GN LT GN LT GN
AVG CLOUDS CL FW FW SC FW FW SC FW CL CL FW SC FW FW SC B1
POP 12HR 0 20 10 20 0 30 10 50
RAIN SHWRS S S S S S C C S S C C
TSTMS S S
PRZ008-182000-
RAFAEL HERNANDEZ AIRPORT-AGUADILLA PR
18.50N 67.13W ELEV. 237 FT
503 AM AST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
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 85 72 84 72 84
TEMP 76 83 85 79 76 74 73 72 77 83 84 78 75 74 73 72 77 83 84 78 75
DEWPT 70 70 72 73 73 72 71 69 71 71 72 71 71 71 69 68 71 72 72 72 71
RH 82 65 65 82 90 93 93 90 82 67 67 79 87 90 87 87 82 70 67 82 87
WIND DIR E E E E E E E E E E E E E E E E E E NE NE E
WIND SPD 13 17 18 18 18 14 12 14 12 17 17 16 14 14 11 10 12 17 17 18 17
CLOUDS CL CL CL SC CL SC SC B2 FW CL FW FW SC SC CL CL SC SC SC SC SC
POP 12HR 20 50 10 20 30
QPF 12HR 0.04 0.29 0 0.01 0.04
RAIN SHWRS S C C C S S S S S S C
HEAT INDEX 88 90 87 89 88 89
MAX HEAT 90 88 90 87 90 87
HIGH SURF Y Y Y Y
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
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 72 85 72 84 71 83 71 82
TEMP 73 77 85 76 73 77 84 75 72 76 83 74 72 75 82 74
DEWPT 69 71 72 72 70 72 72 71 69 70 72 71 69 70 71 70
PWIND DIR E E E E E NE E NE
WIND CHAR GN GN GN BZ GN BZ BZ BZ
AVG CLOUDS SC SC SC SC SC SC SC FW FW FW SC SC SC SC SC B1
POP 12HR 30 20 20 20 20 30 30 40
RAIN SHWRS C C S S S S S S S S C C S C C C
PRZ010-182000-
EUGENIO MARIA DE HOSTO AIRPORT-MAYAGUEZ PR
18.27N 67.15W ELEV. 28 FT
503 AM AST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
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 71 90 69 90
TEMP 78 89 90 81 77 75 72 71 79 88 89 80 75 73 70 69 77 88 89 80 76
DEWPT 70 72 72 73 73 72 71 70 72 72 73 72 72 71 69 69 71 73 74 73 71
RH 76 57 56 77 87 90 97 97 79 59 59 77 90 93 97100 82 61 61 79 85
WIND DIR E E SE NE NE NE NE NE E E NE NE NE E E E E NE NE NE NE
WIND SPD 8 5 3 4 12 10 8 8 6 5 3 2 8 11 8 9 9 11 10 10 11
CLOUDS CL CL SC B2 SC CL CL CL CL CL SC SC SC SC CL CL FW FW SC SC CL
POP 12HR 50 20 30 20 30
QPF 12HR 0.54 0.01 0.04 0.01 0.05
RAIN SHWRS S C S C C S S C C
HEAT INDEX 96 98 86 95 98 83 95 99 84
MAX HEAT 99 95 98 94 99 95
HIGH SURF
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
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 70 91 71 90 69 89 69 89
TEMP 71 78 90 77 72 79 89 75 70 77 88 75 70 77 88 75
DEWPT 70 71 74 73 71 72 75 72 70 71 74 71 69 70 73 70
PWIND DIR NE E E E NE NE NE NE
WIND CHAR GN LT LT LT GN GN GN GN
AVG CLOUDS CL FW SC B1 SC SC SC SC FW FW SC SC FW SC SC B1
POP 12HR 0 50 10 30 10 50 20 50
RAIN SHWRS C C S S C C S S C C S S C C
TSTMS S S
VIZ001-182000-
CYRIL E. KING AIRPORT-ST THOMAS USVI
18.33N 64.97W ELEV. 23 FT
503 AM AST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
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 88 78 86 77 86
TEMP 82 87 88 83 81 80 79 78 81 85 86 82 80 79 78 77 81 85 86 82 80
DEWPT 74 75 75 76 75 74 74 73 74 73 73 74 74 74 74 73 74 74 74 74 73
RH 77 68 66 80 82 82 85 85 79 67 65 77 82 85 88 87 79 70 68 77 79
WIND DIR E E E E E E E E E E E E NE NE NE E E E E E E
WIND SPD 16 18 16 17 17 17 19 17 19 18 14 13 14 16 14 16 17 17 16 16 17
CLOUDS SC FW SC SC B2 SC CL CL CL CL FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 50 50 20 20 30
QPF 12HR 0.08 0.04 0.01 0.03 0.04
RAIN SHWRS S S C C C C S S S S S S S S C
HEAT INDEX 88 96 97 91 87 84 87 92 93 87 84 86 93 94 87 83
MAX HEAT 88 98 98 86 87 93 91 83 86 94 92
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
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 77 87 77 87 76 86 76 86
TEMP 78 81 87 80 78 81 87 79 77 80 86 79 77 80 86 79
DEWPT 74 75 75 74 74 74 73 74 73 74 73 72 73 73 73 72
PWIND DIR E E E E NE NE NE NE
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1
POP 12HR 30 30 30 30 40 40 40 40
RAIN SHWRS C C C C C C C C C C C C C C C C
TSTMS S S
VIZ002-182000-
HENRY E. ROHLSEN AIRPORT-ST CROIX USVI
17.70N 64.80W ELEV. 74 FT
503 AM AST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
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 86 74 85 74 86
TEMP 79 85 86 80 77 76 75 74 78 84 85 80 77 76 75 74 79 85 86 80 77
DEWPT 73 74 74 73 73 72 71 71 72 72 72 72 72 71 72 71 73 72 72 73 72
RH 82 70 68 79 87 87 87 90 82 67 65 77 85 85 90 90 82 65 63 79 85
WIND DIR E E E E E E E E E E E E NE NE E E E E E E NE
WIND SPD 14 16 14 14 14 16 14 14 17 18 13 13 12 13 12 12 13 14 14 12 13
CLOUDS SC FW SC SC SC SC CL CL CL CL SC SC CL CL SC SC SC SC SC SC SC
POP 12HR 30 30 10 20 30
QPF 12HR 0.09 0.04 0.01 0.02 0.04
RAIN SHWRS S S S C C S S S S S S S S S C
HEAT INDEX 92 94 84 89 91 83 91 92 83
MAX HEAT 94 91 91 89 92 90
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
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 73 86 73 85 72 85 73 85
TEMP 74 78 86 77 74 78 85 76 73 77 85 76 74 78 85 76
DEWPT 72 73 73 73 72 73 72 71 72 72 72 71 71 72 71 71
PWIND DIR E E E E NE NE NE NE
WIND CHAR GN GN GN GN GN BZ GN GN
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC
POP 12HR 30 20 20 30 30 40 40 40
RAIN SHWRS C C S C C C S C C C S C C C S C
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