Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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365 FOCA52 TJSJ 192103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Tue Aug 19 2025 PRZ001-200800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Tue Aug 19 2025 Date 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 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 80 92 80 89 80 Temp 84 82 81 81 87 91 92 88 84 82 81 81 86 88 89 86 83 82 81 81 84 Dewpt 76 76 76 77 77 77 77 77 76 76 76 75 75 75 76 75 75 75 75 75 76 RH 77 82 85 88 72 64 62 70 77 82 85 82 70 66 66 70 77 79 82 82 77 Wind dir SE SE SE SE E E E E E E E E E E E E E E E E NE Wind spd 8 6 4 4 6 13 17 13 10 10 10 10 11 12 14 13 10 9 9 8 9 Clouds SC SC SC SC SC SC SC SC FW FW CL CL SC SC SC SC CL CL CL CL B2 PoP 12hr 30 30 5 10 50 QPF 12hr 0.09 0.10 0 0.02 0.08 Rain shwrs S S S S C C S S S S S S C Tstms S Obvis H H H H H H H H H H Heat index 93 90 87 89 99105106101 93 90 87 87 94 98100 95 90 88 86 86 92 Max heat 99 92 99 107 105 92 94 100 100 89 92 Date 08/22 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 86 78 87 78 93 79 87 79 90 Temp 86 81 78 84 87 81 79 87 93 84 80 84 87 82 79 86 90 82 Dewpt 76 76 76 76 76 76 76 77 77 77 76 76 76 76 75 75 76 76 PWind dir NE E SE SE E E E E E Wind char GN LT GN LT GN GN GN GN GN Avg clouds B2 B2 OV OV OV OV B2 B2 B1 SC SC SC B1 SC SC SC B1 SC PoP 12hr 70 70 80 50 50 40 40 40 40 Rain shwrs L L L L D D C C C C S C C C S C C S Tstms S S S S S S S S S $$ PRZ002-200800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Tue Aug 19 2025 Date 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 90 82 89 80 Temp 84 83 82 82 87 89 90 88 85 84 82 83 86 89 89 86 83 82 81 81 84 Dewpt 78 78 78 77 78 78 78 78 77 76 76 75 76 76 76 77 76 76 76 76 77 RH 82 85 88 85 75 70 68 72 77 77 82 77 72 66 66 75 80 82 85 85 80 Wind dir SE SE SE SE SE SE E E E E E E E E E E NE NE NE NE NE Wind spd 8 10 10 12 13 13 16 12 12 11 11 12 11 12 12 10 10 10 10 9 11 Clouds SC SC SC B1 B2 B2 FW CL SC SC CL CL SC SC SC SC CL CL CL CL B2 PoP 12hr 50 50 20 30 60 QPF 12hr 0.19 0.14 0.02 0.05 0.10 Rain shwrs S S S C C C S S S S C C L Tstms S Obvis H H H H H H H H H Heat index 95 92 90 90 99104105101 95 92 90 90 97100100 98 91 89 87 87 94 Max heat 100 94 99 105 104 94 97 100 100 90 94 Date 08/22 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 75 86 77 89 77 87 79 90 Temp 87 79 76 82 86 80 78 84 89 81 78 83 87 82 79 86 90 83 Dewpt 77 76 76 77 78 77 77 77 78 77 76 77 77 76 76 76 77 76 PWind dir NE NE SE SE E E E E E Wind char GN LT GN GN GN GN GN GN BZ Avg clouds B2 B2 OV OV OV OV B2 B2 B2 B1 B1 B1 B1 B1 SC SC B1 SC PoP 12hr 70 80 80 60 60 40 50 40 40 Rain shwrs L L L D D D C L L C C C C C S C C C Tstms S S S S S S S S S S S S $$ PRZ007-200800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Tue Aug 19 2025 Date 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 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 79 90 77 89 77 Temp 82 81 80 80 86 89 90 86 81 79 78 78 84 88 89 85 81 79 78 78 83 Dewpt 78 76 76 75 78 80 79 79 78 75 73 72 74 77 78 78 76 74 73 73 75 RH 88 85 88 85 77 75 70 80 91 88 85 82 72 70 70 80 85 85 85 85 77 Wind dir E NE NE E E E SE SE E NE NE NE E E E E E NE NE NE NE Wind spd 6 6 6 8 10 12 11 11 9 5 4 4 4 12 14 12 6 6 5 5 5 Clouds CL SC SC SC SC SC SC CL FW FW CL CL CL CL FW FW SC SC SC SC SC PoP 12hr 30 30 5 20 20 QPF 12hr 0.08 0.09 0 0.02 0.09 Rain shwrs S S S C S S S S S S S Obvis H H H H H H H H H H H Heat index 91 87 84 85 98107106100 90 84 92101103 97 87 83 90 Max heat 98 89 98 107 105 87 92 103 102 85 90 Date 08/22 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 86 76 84 76 89 77 88 77 91 Temp 86 79 77 81 84 79 76 84 89 81 78 84 88 81 78 86 91 82 Dewpt 79 77 74 76 79 77 75 77 80 77 74 76 78 76 73 75 78 76 PWind dir E NE E E E E E NE E Wind char GN LT LT LT GN LT GN LT GN Avg clouds SC B2 B2 B2 B2 OV B2 B2 OV B2 SC FW FW B1 SC SC FW FW PoP 12hr 50 50 80 80 80 10 50 10 5 Rain shwrs C C C C D D L D D L S S C C S S Tstms S S S S S S S S S S S S $$ PRZ008-200800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Tue Aug 19 2025 Date 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 90 77 89 78 Temp 82 80 79 79 85 89 90 86 81 79 78 78 84 88 89 86 82 80 79 79 84 Dewpt 77 76 76 75 75 77 78 77 78 76 76 75 74 75 76 75 76 76 75 75 76 RH 85 88 91 88 72 68 68 75 91 91 94 91 72 66 66 70 82 88 88 88 77 Wind dir SW SE SE E E E NE NE E E E E E E NE NE E E E E E Wind spd 5 6 8 5 5 4 9 8 6 8 12 11 12 14 16 14 18 16 11 11 12 Clouds SC CL CL CL CL CL SC B2 FW FW CL CL CL CL CL CL FW FW FW FW FW PoP 12hr 30 60 5 5 5 QPF 12hr 0.04 0.39 0 0 0.02 Rain shwrs C C L Tstms S Obvis H H H H Heat index 89 86 83 94102105 97 90 84 92 98100 94 89 86 93 Max heat 97 88 94 105 104 87 92 100 100 87 93 Date 08/22 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 76 87 75 88 77 89 77 88 Temp 88 80 77 83 87 79 76 83 88 81 78 84 89 81 78 84 88 81 Dewpt 76 76 76 76 76 75 75 76 77 76 76 75 76 76 75 75 76 75 PWind dir NE E NE SE E E E E E Wind char BZ GN GN GN LT LT LT GN BZ Avg clouds SC B1 B1 B1 B2 OV B2 B2 B2 B1 SC SC FW B1 SC SC SC SC PoP 12hr 40 50 80 70 70 20 50 10 30 Rain shwrs C C C C D D L L L L S S C C S S C C Tstms S S S S S S S S $$ PRZ010-200800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Tue Aug 19 2025 Date 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 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 95 75 94 75 Temp 82 80 78 79 88 94 95 89 82 79 76 77 87 93 94 88 81 79 76 77 86 Dewpt 77 76 76 75 77 79 79 79 78 76 76 74 75 77 78 77 77 76 75 74 76 RH 85 88 94 88 70 62 60 73 88 91100 90 68 60 60 70 88 91 97 90 72 Wind dir SE E E E E SE SE NE S NE E E E E NE NE NE E NE NE NE Wind spd 8 9 8 5 5 9 9 1 6 6 4 5 3 2 6 4 5 6 5 9 8 Clouds CL CL CL CL FW CL SC SC FW FW CL CL CL CL CL CL SC SC SC SC FW PoP 12hr 0 30 5 20 20 QPF 12hr 0 0.18 0 0.02 0.09 Rain shwrs S C S S S S Obvis H H H H H H H H H H H Heat index 91 86 100112113104 90 96107110100 89 95 Max heat 100 89 100 114 112 87 96 110 109 87 95 Date 08/22 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 89 73 92 75 94 75 94 Temp 92 81 76 84 89 78 74 85 92 81 76 87 94 81 76 87 94 81 Dewpt 79 77 76 76 78 76 74 77 79 77 75 76 78 77 75 75 78 76 PWind dir NE NE SE E SE E E E E Wind char LT GN LT LT GN LT LT LT LT Avg clouds SC B1 B2 B2 B2 OV B2 B2 B2 B1 SC FW FW B1 SC FW FW SC PoP 12hr 50 50 80 70 70 10 50 10 20 Rain shwrs C C C C D D C L L L S S C C S S S S Tstms S S S S S S S S S S S $$ VIZ001-200800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Tue Aug 19 2025 Date 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 82 92 81 92 81 Temp 85 84 83 83 88 91 92 89 85 83 82 82 88 91 92 89 85 83 82 82 86 Dewpt 78 79 79 78 78 78 77 77 77 76 76 76 76 76 76 76 77 77 77 76 77 RH 80 85 88 85 72 66 62 68 77 80 82 82 68 62 60 66 77 82 85 82 75 Wind dir SE E E E E E E E E E E E E E E E NE NE NE NE NE Wind spd 13 14 18 17 17 19 19 17 17 17 16 18 16 18 16 12 17 16 17 16 17 Clouds SC SC SC SC SC SC CL CL SC SC SC SC SC SC SC SC CL CL CL CL B2 PoP 12hr 30 30 20 30 60 QPF 12hr 0.10 0.08 0.03 0.05 0.10 Rain shwrs S S S C C C S S S S S S C C L Tstms S Obvis H H H H H H H H Heat index 97 96 93 93102107106101 95 91 89 90 99104105100 95 92 89 89 97 Max heat 103 96 102 107 105 94 99 105 104 94 97 Date 08/22 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 79 87 81 92 82 92 82 92 Temp 89 82 80 84 87 83 81 88 92 85 83 88 92 85 83 88 92 85 Dewpt 77 77 77 77 77 78 78 78 78 78 77 77 76 77 77 77 76 77 PWind dir NE E SE SE E E E E E Wind char GN GN GN GN BZ BZ BZ BZ BZ Avg clouds B2 B2 OV OV OV B2 B2 B1 B1 SC SC B1 SC SC SC SC SC SC PoP 12hr 80 80 80 50 40 30 30 40 40 Rain shwrs L D D D D L C C C C C C C S S C C S Tstms S S S S S S S S $$ VIZ002-200800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Tue Aug 19 2025 Date 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 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 79 90 79 90 78 Temp 83 81 80 80 86 89 90 87 83 81 80 80 86 89 90 86 82 80 79 79 85 Dewpt 77 78 78 77 78 78 77 77 76 76 76 75 76 76 76 76 75 76 75 76 76 RH 82 91 94 91 77 70 66 72 80 85 88 85 72 66 64 72 79 88 88 91 75 Wind dir E E E E E E E E E E E E E E E E NE NE NE NE NE Wind spd 11 11 14 14 14 19 18 16 16 16 13 14 16 16 16 14 13 14 14 13 14 Clouds SC SC SC SC SC SC CL CL CL CL SC SC SC SC SC SC CL CL CL CL B2 PoP 12hr 30 30 10 30 60 QPF 12hr 0.12 0.08 0.02 0.04 0.10 Rain shwrs S C C C C C S S S S C C L Tstms S Obvis H H H H H H H Heat index 91 89 85 87 98104103 98 90 88 85 85 96101102 96 89 86 83 94 Max heat 98 90 98 104 102 89 96 102 101 87 94 Date 08/22 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 76 87 79 90 79 90 79 90 Temp 89 80 77 83 87 82 79 86 90 83 80 86 90 83 80 86 90 82 Dewpt 76 76 76 77 77 76 77 78 78 77 76 77 77 76 76 77 77 76 PWind dir NE E SE SE E E E E E Wind char GN GN GN GN BZ BZ BZ BZ BZ Avg clouds B2 B2 OV OV OV B2 B2 B1 B1 SC SC SC SC FW SC SC SC SC PoP 12hr 80 80 80 50 40 30 20 20 20 Rain shwrs L D D D D L C C C C C C S S S S S S Tstms S S S S S S S S $$