Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
717 FOCA52 TJSJ 300903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sat Aug 30 2025 PRZ001-302000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sat Aug 30 2025 Date Sat 08/30/25 Sun 08/31/25 Mon 09/01/25 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 92 79 92 Temp 87 90 91 87 83 81 80 80 87 91 92 88 83 81 80 79 87 91 92 86 83 Dewpt 75 76 76 76 75 75 75 75 75 76 76 76 75 75 75 75 75 76 76 76 76 RH 68 64 62 70 77 82 85 85 68 62 60 68 77 82 85 88 68 62 60 72 80 Wind dir E E E E E E E SE E E E E E E E E SE E E E E Wind spd 8 10 13 12 9 8 6 6 6 11 13 11 9 8 4 5 6 12 14 12 8 Clouds OV SC B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 SC PoP 12hr 70 20 20 30 40 QPF 12hr 0.37 0.16 0.12 0.09 0.25 Rain shwrs L S C C S S S S S S S S S S S S C C C C S Tstms S S S Heat index 96102103 98 90 87 84 85 97103104 98 90 87 84 84 96103105 96 91 Max heat 96 103 102 89 97 104 103 89 96 105 103 Date Tue 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 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 79 90 79 90 79 89 79 89 Temp 80 85 90 82 80 85 90 82 80 85 89 82 80 85 89 82 Dewpt 75 76 76 76 75 75 76 75 75 75 76 75 75 75 77 76 PWind dir SE E E E E E E E Wind char LT GN LT GN LT GN GN GN Avg clouds SC SC B1 B1 SC B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 50 40 40 30 30 30 30 Rain shwrs S C C C C C C S S C C S S C C S Tstms S S $$ PRZ002-302000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sat Aug 30 2025 Date Sat 08/30/25 Sun 08/31/25 Mon 09/01/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 79 90 79 90 Temp 86 89 90 87 83 81 80 80 86 89 90 87 82 81 80 79 85 89 90 85 82 Dewpt 77 77 76 77 76 77 76 76 77 77 76 77 76 77 77 76 77 77 77 78 77 RH 75 68 64 72 80 88 88 88 75 68 64 72 82 88 91 91 77 68 66 80 85 Wind dir E E E E E E E E E E E E E E E E E E SE E E Wind spd 8 10 9 9 9 9 8 8 8 11 9 8 8 8 6 8 9 11 10 9 8 Clouds OV SC SC B1 SC SC SC SC B2 B1 SC SC SC SC B1 B1 B2 B2 B1 B1 SC PoP 12hr 70 50 50 50 50 QPF 12hr 0.39 0.25 0.19 0.16 0.29 Rain shwrs L C C C C S C C C C S S C C C C C C C C S Tstms S S S S Heat index 97102102 98 91 88 85 86 97102102 98 90 88 84 84 96101102 97 90 Max heat 97 102 102 90 97 102 101 89 96 103 102 Date Tue 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 90 78 90 79 89 79 89 Temp 80 85 90 82 79 85 90 82 80 85 89 82 80 85 89 83 Dewpt 77 78 77 76 77 77 77 76 76 77 77 76 76 77 78 77 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC B1 SC B2 B2 B1 SC SC SC SC SC SC SC B1 B1 PoP 12hr 50 50 50 50 30 30 30 40 Rain shwrs S C C C C C C S S C C C C C C C $$ PRZ007-302000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sat Aug 30 2025 Date Sat 08/30/25 Sun 08/31/25 Mon 09/01/25 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 75 90 78 90 Temp 85 89 90 85 80 78 76 77 84 89 90 86 82 80 79 78 85 89 90 84 81 Dewpt 73 73 74 74 73 73 71 71 72 74 74 73 73 73 72 71 71 72 74 74 74 RH 67 59 60 70 79 85 85 82 67 61 60 65 74 79 79 79 63 57 60 72 79 Wind dir E SE SE SE NE NE NE NE E SE SE SE E NE NE NE E SE SE SE E Wind spd 3 11 11 5 2 3 3 4 4 12 8 8 5 4 4 4 4 10 10 9 6 Clouds SC SC B1 B2 B1 SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC FW PoP 12hr 60 40 30 20 20 QPF 12hr 0.52 0.11 0.18 0.05 0.14 Rain shwrs S C C L C S S S S C C S S S S S S S S Tstms S Heat index 92 97100 93 84 90 98 99 93 87 84 90 96 99 92 86 Max heat 92 100 99 82 90 99 98 86 90 99 98 Date Tue 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 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 77 89 77 88 77 88 Temp 78 84 89 81 78 84 89 81 78 83 88 80 78 83 88 80 Dewpt 73 73 74 74 73 73 73 72 72 71 73 74 70 72 73 72 PWind dir E E E E E E NE E Wind char LT GN LT GN LT GN LT GN Avg clouds FW FW FW SC SC SC SC SC SC FW FW SC SC SC SC SC PoP 12hr 5 10 20 20 10 20 10 20 Rain shwrs S S S S S S S S S S S S S S $$ PRZ008-302000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sat Aug 30 2025 Date Sat 08/30/25 Sun 08/31/25 Mon 09/01/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 77 88 79 88 Temp 85 88 88 85 81 79 78 78 84 87 88 85 82 80 79 79 84 87 88 83 80 Dewpt 75 76 76 75 75 76 76 74 75 76 76 75 75 76 76 74 75 75 77 75 75 RH 72 68 68 72 82 91 94 88 74 70 68 72 79 88 91 85 74 68 70 77 85 Wind dir E NE E E E E E E E E NE NE E E E E E E NE NE E Wind spd 9 4 5 9 11 13 12 11 10 5 4 9 10 10 8 8 9 4 5 6 6 Clouds SC SC B1 B1 B2 SC FW FW FW FW B1 SC SC SC SC SC FW FW B2 B2 CL PoP 12hr 50 50 40 10 60 QPF 12hr 0.29 0.10 0.19 0.03 1.05 Rain shwrs S S C C C S S C C S S S S L L Tstms S S S S S Heat index 94 98 99 93 86 83 91 98 99 94 88 86 84 83 92 97 99 91 86 Max heat 94 99 98 85 91 99 98 87 92 99 98 Date Tue 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 88 77 88 77 88 77 88 Temp 78 83 88 80 78 83 88 80 78 83 88 80 78 83 88 80 Dewpt 76 75 76 76 76 75 77 76 75 75 76 75 75 75 77 76 PWind dir E E E E E E E E Wind char LT LT LT LT LT GN GN GN Avg clouds CL FW SC B1 SC FW SC SC SC SC SC B1 SC SC SC SC PoP 12hr 5 60 10 40 10 50 10 30 Rain shwrs S L L S S C C S S C C S S C C Tstms S S S S S S $$ PRZ010-302000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sat Aug 30 2025 Date Sat 08/30/25 Sun 08/31/25 Mon 09/01/25 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 93 76 93 78 93 Temp 88 92 93 88 82 79 77 78 87 92 93 88 83 80 79 78 87 92 93 85 80 Dewpt 76 78 79 77 77 76 75 74 76 77 78 78 77 77 75 75 76 77 78 78 77 RH 68 64 64 70 85 91 94 88 70 62 62 72 82 91 88 91 70 62 62 80 91 Wind dir E W N NE E NE E E E SE W NE E E E E E SE SE NE E Wind spd 4 2 5 5 8 6 5 4 4 2 2 8 8 3 4 5 4 2 3 9 4 Clouds SC B1 OV OV B2 SC CL CL CL FW OV B2 SC SC SC SC FW FW B2 B2 CL PoP 12hr 90 60 70 10 60 QPF 12hr 1.25 0.15 1.01 0.04 1.05 Rain shwrs C D D L S L L S S S S L L Tstms S S S S S S S Heat index 99107111100 89 84 97106109102 91 87 97105109 97 87 Max heat 99 111 109 87 97 109 108 89 97 109 108 Date Tue 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 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 93 74 93 74 93 75 93 Temp 76 85 93 80 75 85 93 80 75 85 93 80 76 85 93 80 Dewpt 76 76 79 76 75 76 79 77 75 76 78 77 75 76 79 77 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds CL FW SC B1 FW FW SC B1 SC FW SC B1 SC FW FW SC PoP 12hr 5 60 5 50 10 50 10 50 Rain shwrs L L C C S S C C S S C C Tstms S S S S S S S S $$ VIZ001-302000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sat Aug 30 2025 Date Sat 08/30/25 Sun 08/31/25 Mon 09/01/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 80 92 81 92 Temp 88 92 93 89 84 82 81 81 87 91 92 89 84 83 82 81 87 91 92 87 84 Dewpt 77 77 77 76 77 77 77 76 76 77 76 76 76 77 77 76 77 77 77 77 77 RH 70 62 60 66 80 85 88 85 70 64 60 66 77 82 85 85 72 64 62 72 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 12 12 11 10 12 14 13 13 13 13 11 10 11 13 12 11 12 13 12 12 12 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 SC SC SC PoP 12hr 30 30 30 40 40 QPF 12hr 0.24 0.19 0.11 0.10 0.17 Rain shwrs C S S C C S C S C S S S S S S S C C S S S Heat index 101106107101 94 91 87 88 98104105100 93 92 89 88 99104106 98 93 Max heat 101 107 106 93 98 105 104 92 99 106 105 Heat Y Y Date Tue 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 92 80 92 80 92 80 92 Temp 81 87 92 84 81 87 92 84 81 87 92 84 81 87 92 84 Dewpt 77 78 77 77 77 78 77 77 77 77 76 76 76 78 78 78 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN BZ BZ Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 PoP 12hr 20 10 20 20 20 20 20 40 Rain shwrs S S S S S S S S S S S S S S C C $$ VIZ002-302000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sat Aug 30 2025 Date Sat 08/30/25 Sun 08/31/25 Mon 09/01/25 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 79 90 78 90 Temp 86 89 90 87 83 81 80 80 86 89 90 86 82 80 79 78 85 89 90 85 82 Dewpt 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 77 77 77 77 77 RH 72 66 64 70 80 85 88 88 72 66 64 72 82 88 91 94 77 68 66 77 85 Wind dir E E E E NE E E E E E E E E E E E E E E E E Wind spd 11 12 12 11 10 12 11 11 12 12 12 9 11 10 10 10 11 13 12 11 10 Clouds SC SC SC SC SC SC B2 SC SC SC SC SC SC SC SC SC B1 B1 SC SC SC PoP 12hr 20 50 30 40 40 QPF 12hr 0.20 0.24 0.16 0.13 0.17 Rain shwrs S S S S S S C C S C S S C C C C C C S S C Heat index 96101101 97 90 87 84 85 96101101 96 88 85 95101102 95 90 Max heat 96 101 101 89 96 101 101 87 95 103 102 Heat Y Y Date Tue 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 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 79 91 78 91 78 91 78 91 Temp 80 86 91 82 79 86 91 82 79 86 91 82 79 86 91 83 Dewpt 76 77 76 76 76 76 76 76 76 76 76 75 76 77 77 77 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN BZ Avg clouds SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC B1 PoP 12hr 30 10 10 20 20 30 30 40 Rain shwrs C C S S S S S S S S S C C C C C $$