Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
583 FOCA52 TJSJ 160903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Wed Jul 16 2025 PRZ001-162000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Wed Jul 16 2025 Date Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 90 78 88 Temp 84 87 88 86 81 80 78 80 85 89 90 87 82 80 78 79 84 87 88 86 81 Dewpt 75 76 76 77 76 76 76 75 77 77 77 77 77 77 76 75 76 76 75 76 75 RH 74 70 68 75 85 88 94 85 77 68 66 72 85 91 94 88 77 70 66 72 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 12 14 16 13 11 10 10 10 12 14 16 12 10 10 10 9 9 12 14 13 10 Clouds SC B2 B2 OV B1 SC SC SC SC B1 B1 B2 B1 B1 B1 B1 B1 B1 SC SC SC PoP 12hr 70 40 50 40 40 QPF 12hr 1.32 0.14 0.15 0.13 0.09 Rain shwrs S L L L C C S S S C C C C C C C C C C C C Tstms S S Obvis H Heat index 92 98 99 96 88 85 84 96102103 99 90 87 83 93 98 98 95 88 Max heat 92 100 100 87 96 103 102 89 93 98 98 Date Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 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 89 78 90 78 90 78 90 Temp 78 85 89 82 78 85 90 82 78 85 90 82 78 85 90 82 Dewpt 75 74 75 75 74 75 75 75 74 75 74 76 75 76 76 77 PWind dir E E SE E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC SC FW SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 30 20 40 20 30 30 20 Rain shwrs C C S S S C C S S S C C C S S $$ PRZ002-162000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Wed Jul 16 2025 Date Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 80 88 80 89 Temp 84 86 87 85 82 81 80 81 85 87 88 86 83 81 80 81 85 88 89 86 82 Dewpt 75 77 76 76 76 76 76 75 76 77 77 77 77 76 75 75 76 76 75 75 75 RH 74 75 70 75 82 85 88 82 75 72 70 75 82 85 85 82 75 68 64 70 79 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 14 16 16 14 13 13 12 12 13 13 13 12 11 11 11 10 10 11 11 11 10 Clouds SC B2 OV OV B1 SC SC SC SC B1 B1 B2 B1 B1 SC SC B1 B1 SC SC B1 PoP 12hr 70 40 50 40 40 QPF 12hr 1.37 0.20 0.15 0.13 0.09 Rain shwrs S L L L C C C S C C C C C C C C C C C C C Tstms S S Heat index 92 98 98 95 90 88 86 87 94 99100 97 91 88 86 87 95 99 99 95 88 Max heat 92 98 97 89 94 100 100 90 95 100 99 Date Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 89 79 90 80 88 80 88 Temp 78 85 89 82 79 86 90 83 80 85 88 83 80 85 88 83 Dewpt 75 74 75 75 74 75 75 75 74 75 74 75 75 76 76 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC SC B2 B2 B2 B1 SC SC B1 SC B1 SC SC SC PoP 12hr 50 50 50 50 40 40 40 10 Rain shwrs C C C C C C C C S C C C C C S S $$ PRZ007-162000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Wed Jul 16 2025 Date Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 77 91 76 90 Temp 85 90 91 88 82 79 78 79 85 90 91 87 81 79 77 78 84 89 90 86 80 Dewpt 74 75 76 77 75 74 73 73 75 77 77 78 76 74 73 72 75 77 77 76 75 RH 70 62 62 70 79 85 85 82 72 66 64 75 85 85 87 82 74 68 66 72 85 Wind dir E E E E E E NE NE E E SE E E E NE NE E E SE E E Wind spd 6 17 20 14 10 6 6 5 8 16 16 14 10 6 5 4 5 12 17 9 8 Wind gust 29 35 25 26 27 25 28 Clouds SC SC B1 B2 FW SC CL FW CL FW SC SC CL CL FW FW CL CL SC SC FW PoP 12hr 60 20 10 5 10 QPF 12hr 0.78 0.01 0.01 0 0.01 Rain shwrs S S C L S S S S S S Tstms S S Obvis H H H H H H H H H H H H Heat index 93100103 99 88 83 94103105100 88 93102103 96 85 Max heat 93 103 104 86 94 105 104 85 93 103 102 Date Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 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 89 76 90 76 90 77 91 Temp 76 83 89 80 77 84 90 81 77 84 90 81 78 85 91 82 Dewpt 72 74 77 75 72 74 76 74 72 73 75 74 72 74 77 75 PWind dir NE E E E E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds FW FW FW SC FW SC SC SC CL CL FW SC SC FW FW FW PoP 12hr 5 20 5 20 0 10 5 5 Rain shwrs S S S S S S S S S S $$ PRZ008-162000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Wed Jul 16 2025 Date Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 77 87 77 88 Temp 83 86 87 85 80 79 77 78 83 86 87 85 80 79 77 78 84 87 88 85 79 Dewpt 75 75 76 74 75 76 76 76 75 76 77 76 77 77 77 77 76 75 76 75 75 RH 77 70 70 70 85 91 97 94 77 72 72 75 91 94100 97 77 68 68 72 88 Wind dir E E E E E E E E E E E E E E E E E E NE E E Wind spd 17 20 21 21 21 16 12 12 14 17 14 14 17 13 14 11 11 11 17 16 16 Clouds SC SC B2 B2 B2 FW CL CL CL SC B1 B1 SC SC SC SC SC SC SC SC CL PoP 12hr 50 50 40 30 10 QPF 12hr 0.71 0.10 0.12 0.07 0.02 Rain shwrs S S C C C S S C C C C S S S S S S Tstms S S S Obvis H H H H H H H H Heat index 90 95 98 92 86 90 96 99 94 87 92 97 99 93 84 Max heat 90 98 97 84 90 99 98 85 92 99 98 Date Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 87 75 88 76 87 77 88 Temp 76 82 87 79 75 83 88 80 76 83 87 80 77 84 88 81 Dewpt 76 74 75 74 74 73 75 75 75 73 74 75 76 74 77 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN BZ Avg clouds FW FW SC SC SC SC SC B1 FW FW FW FW FW FW SC SC PoP 12hr 5 40 30 60 5 10 10 30 Rain shwrs S S S C C C L L S S S C C Tstms S S $$ PRZ010-162000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Wed Jul 16 2025 Date Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 75 92 Temp 85 91 92 88 80 77 75 76 85 91 92 88 81 78 76 77 85 91 92 88 80 Dewpt 76 78 79 78 77 75 74 73 76 78 80 79 78 77 75 74 76 78 80 78 77 RH 75 66 66 72 91 94 97 90 75 66 68 75 91 97 97 90 75 66 68 72 91 Wind dir E E E E E E E E E E E NE E E E E E E NE E E Wind spd 6 8 5 6 5 4 5 5 5 3 2 4 3 4 5 4 3 4 4 5 11 Clouds CL FW B2 OV B1 CL CL CL CL CL OV OV CL CL CL CL CL CL B2 B2 SC PoP 12hr 80 40 70 0 50 QPF 12hr 1.08 0.10 0.75 0 0.63 Rain shwrs C D C L L C C S Tstms S S S S S S Obvis H H H H H H H H Heat index 94105109101 87 94105111103 89 95105111101 87 Max heat 94 109 108 83 94 111 110 85 95 111 109 Date Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 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 90 74 92 74 92 75 93 Temp 75 84 90 79 75 85 92 80 75 85 92 81 76 86 93 81 Dewpt 75 75 78 76 74 75 78 76 73 75 78 76 74 76 79 78 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC B1 SC FW SC B1 CL CL FW SC FW FW SC B1 PoP 12hr 10 80 5 60 0 50 0 60 Rain shwrs S L L S S L L C C L L Tstms S S S S S S S S $$ VIZ001-162000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Wed Jul 16 2025 Date Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 81 90 81 90 Temp 86 89 90 88 84 83 81 82 86 89 90 88 84 83 81 82 86 89 90 88 83 Dewpt 77 77 77 77 77 77 78 78 78 78 78 77 78 77 77 77 76 76 77 76 76 RH 75 68 66 70 80 82 91 88 77 70 68 70 82 82 88 85 72 66 66 68 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 20 20 19 19 20 20 20 19 20 19 18 18 18 18 17 14 14 14 12 13 16 Clouds FW B2 B2 B2 SC SC FW SC SC B1 FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 30 40 30 30 QPF 12hr 0.72 0.13 0.08 0.04 0.07 Rain shwrs L L C C S S S S C S S S S S S C C S S C Tstms S S Obvis H H H H H H H H H Heat index 97102103100 94 91 90 91 99104105100 95 91 89 90 97101103 98 92 Max heat 97 105 104 94 99 105 104 94 97 103 102 Date Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 89 81 90 81 89 81 90 Temp 80 85 89 84 81 86 90 84 81 86 89 84 81 86 90 84 Dewpt 75 76 75 75 76 76 76 76 76 76 76 76 77 77 77 77 PWind dir E E E E E E E E Wind char BZ GN BZ BZ BZ BZ BZ BZ Avg clouds B1 B1 SC FW B1 B1 B1 SC SC SC B1 SC SC SC SC SC PoP 12hr 50 40 40 40 40 40 20 20 Rain shwrs C C C C C C C S S C C S S S S S $$ VIZ002-162000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Wed Jul 16 2025 Date Wed 07/16/25 Thu 07/17/25 Fri 07/18/25 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 89 78 90 Temp 84 87 88 86 81 80 78 79 85 88 89 86 82 80 78 80 85 89 90 87 81 Dewpt 76 77 76 76 76 77 76 75 77 78 77 76 77 76 75 75 76 76 76 75 75 RH 77 72 68 72 85 91 94 88 77 72 68 72 85 88 91 85 75 66 64 68 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 17 19 17 18 17 18 17 17 18 19 18 17 14 17 16 13 13 14 13 13 13 Clouds SC B2 B2 B2 SC CL FW FW FW SC SC SC SC SC SC SC FW FW SC SC SC PoP 12hr 60 10 30 20 30 QPF 12hr 0.66 0.04 0.13 0.02 0.05 Rain shwrs S C L L S S C S C S S S S C C S Tstms S S Obvis H H H H H H H H Heat index 93 99 99 95 88 85 84 95102102 96 90 85 84 95100102 96 88 Max heat 93 100 100 87 95 102 101 88 95 102 101 Date Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 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 89 78 90 78 88 79 89 Temp 78 84 89 82 78 85 90 82 78 84 88 82 79 85 89 82 Dewpt 75 75 75 75 75 75 76 74 74 75 76 75 76 76 77 75 PWind dir E E E E E E E E Wind char GN GN GN GN BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 20 40 40 20 20 20 20 Rain shwrs C C S S S C C S S S S S S S S S $$