Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
295 FOCA52 TJSJ 302103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Sat Aug 30 2025 PRZ001-310800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue 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 92 79 92 79 Temp 83 81 80 80 87 91 92 88 83 81 80 79 87 91 92 86 83 81 80 79 85 Dewpt 75 75 75 75 75 76 76 76 75 75 75 75 75 76 76 76 76 76 75 75 76 RH 77 82 85 85 68 62 60 68 77 82 85 88 68 62 60 72 80 85 85 88 75 Wind dir E E E SE E E E E E E SE SE SE E E E SE SE SE SE SE Wind spd 9 8 6 6 6 11 14 12 9 8 5 5 8 12 14 12 8 6 6 6 8 Clouds SC SC SC SC SC SC SC SC SC CL B2 B1 SC SC B1 B1 SC SC SC SC B1 PoP 12hr 20 20 50 40 40 QPF 12hr 0.16 0.11 0.10 0.25 0.04 Rain shwrs S S S S S S S S S C C C C C C S S S S C Tstms S S Heat index 90 87 84 85 97103104 98 90 87 84 84 96103105 96 91 87 84 83 95 Max heat 98 89 97 104 103 89 96 105 103 90 95 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 90 79 90 79 89 79 89 79 90 Temp 90 82 80 85 90 82 80 85 89 82 80 85 89 82 80 85 90 82 Dewpt 76 76 75 75 76 75 75 75 76 75 75 75 77 76 76 76 77 76 PWind dir E SE E E E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds B1 B1 SC B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 40 40 30 30 30 30 20 30 Rain shwrs C C C C C S S C C S S C C S S S C C Tstms S S $$ PRZ002-310800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 90 79 90 79 Temp 83 81 80 80 86 89 90 87 82 81 80 79 85 89 90 85 82 81 80 79 85 Dewpt 76 77 76 76 77 77 76 77 76 77 77 76 77 77 77 78 77 77 77 76 78 RH 80 88 88 88 75 68 64 72 82 88 91 91 77 68 66 80 85 88 91 91 80 Wind dir NE E E E E E E E E E E E E E SE SE E E E E E Wind spd 9 10 8 9 9 11 8 8 8 8 8 8 8 11 10 8 8 9 9 8 11 Clouds SC SC SC SC B2 B1 SC SC SC CL B2 B1 B2 B2 B1 B1 SC SC SC SC B2 PoP 12hr 50 50 50 50 50 QPF 12hr 0.25 0.19 0.15 0.29 0.06 Rain shwrs C S C C C C S S C C C C C C C S S S S C Tstms S S Heat index 91 88 85 86 97102102 98 90 88 84 84 96101102 97 90 88 85 84 97 Max heat 99 90 97 102 101 89 96 103 102 89 97 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 78 90 79 89 79 89 80 90 Temp 90 82 79 85 90 82 80 85 89 82 80 85 89 83 80 86 90 83 Dewpt 77 76 77 77 77 76 76 77 77 76 76 77 78 77 77 78 77 77 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 SC B2 B2 B1 SC SC SC SC SC SC SC B1 B1 B1 B1 SC B1 PoP 12hr 50 50 50 30 30 30 40 40 50 Rain shwrs C C C C C S S C C C C C C C C C C C $$ PRZ007-310800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue 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 75 90 78 90 77 Temp 80 78 76 77 84 89 90 86 82 80 79 78 85 89 90 84 81 79 78 77 84 Dewpt 73 73 71 71 72 74 74 73 73 73 72 71 71 72 74 74 74 74 73 72 73 RH 79 85 85 82 67 61 60 65 74 79 79 79 63 57 60 72 79 85 85 85 70 Wind dir NE NE NE NE E SE SE SE E NE NE NE E SE SE SE E E NE NE E Wind spd 3 4 4 3 3 12 10 8 4 4 3 3 4 10 10 8 5 5 4 4 4 Clouds B1 SC FW SC SC SC SC SC CL CL FW FW SC SC SC SC FW FW FW FW FW PoP 12hr 40 30 20 20 5 QPF 12hr 0.11 0.17 0.02 0.14 0.01 Rain shwrs C S S S S C C S S S S Tstms Heat index 84 90 98 99 93 87 84 90 96 99 92 86 83 90 Max heat 93 82 90 99 98 86 90 99 98 85 90 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 77 89 77 88 77 88 77 89 Temp 89 81 78 84 89 81 78 83 88 80 78 83 88 80 78 84 89 81 Dewpt 74 74 73 73 73 72 72 71 73 74 70 72 73 72 71 72 73 74 PWind dir SE E E E E NE E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC PoP 12hr 10 20 20 10 20 10 20 10 10 Rain shwrs S S S S S S S S S S S S S S S S S S $$ PRZ008-310800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 88 79 88 77 Temp 81 79 78 78 84 87 88 85 82 80 79 79 84 87 88 83 80 79 78 77 83 Dewpt 75 76 76 74 75 76 76 75 75 76 76 74 75 75 77 75 75 76 76 75 75 RH 82 91 94 88 74 70 68 72 79 88 91 85 74 68 70 77 85 91 94 94 77 Wind dir E E E E E E NE NE E E E E E E NE NE E SE SE E E Wind spd 10 13 11 10 8 3 6 10 12 8 6 9 9 3 8 6 4 4 4 5 9 Clouds B2 SC FW FW FW FW B1 SC SC SC CL FW FW FW B2 B2 CL CL CL CL FW PoP 12hr 50 40 30 60 5 QPF 12hr 0.10 0.21 0.04 1.05 0 Rain shwrs C S S C C C S L L S Tstms S S S S Heat index 86 83 91 98 99 94 88 86 84 83 92 97 99 91 86 91 Max heat 94 85 91 99 98 87 92 99 98 84 91 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 88 77 88 77 88 77 88 Temp 88 80 78 83 88 80 78 83 88 80 78 83 88 80 78 83 88 80 Dewpt 76 76 76 75 77 76 75 75 76 75 75 75 77 76 76 76 77 76 PWind dir E E E E E E E E E Wind char LT LT GN LT GN GN GN GN GN Avg clouds SC B1 SC FW SC SC SC SC SC B1 SC SC SC SC SC SC SC B1 PoP 12hr 60 10 40 10 50 10 30 10 40 Rain shwrs L L S S C C S S C C S S C C S S C C Tstms S S S S S S S S $$ PRZ010-310800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue 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 76 93 78 93 75 Temp 82 79 77 78 87 92 93 88 83 80 79 78 87 92 93 85 80 78 76 76 85 Dewpt 77 76 75 74 76 77 78 78 77 77 75 75 76 77 78 78 77 76 76 75 76 RH 85 91 94 88 70 62 62 72 82 91 88 91 70 62 62 80 91 94100 97 75 Wind dir E E E E E SW N NE E E NE E E S SE NE E E E E E Wind spd 5 5 5 4 3 1 2 6 8 4 5 5 4 2 2 5 3 4 5 4 4 Clouds B2 SC CL CL CL FW OV B2 SC CL CL CL FW FW B2 B2 CL CL CL CL FW PoP 12hr 60 70 30 60 5 QPF 12hr 0.15 1.02 0.04 1.05 0 Rain shwrs L S L L C L L Tstms S S S S S Heat index 89 84 97106109102 91 87 97105109 97 87 95 Max heat 100 87 97 109 108 89 97 109 108 84 95 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 93 74 93 74 93 75 93 75 93 Temp 93 80 75 85 93 80 75 85 93 80 76 85 93 80 76 85 93 80 Dewpt 79 76 75 76 79 77 75 76 78 77 75 76 79 77 76 76 80 77 PWind dir E E E E E E E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 FW FW SC B1 SC FW SC B1 SC FW FW SC CL CL FW B1 PoP 12hr 60 5 50 10 50 10 50 0 50 Rain shwrs L L C C S S C C S S C C C C Tstms S S S S S S S S S S $$ VIZ001-310800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 92 81 92 80 Temp 84 82 81 81 87 91 92 89 84 83 82 81 87 91 92 87 84 82 81 80 87 Dewpt 77 77 77 76 76 77 76 76 76 77 77 76 77 77 77 77 77 77 77 76 78 RH 80 85 88 85 70 64 60 66 77 82 85 85 72 64 62 72 80 85 88 88 75 Wind dir E E E E E E SE E E E E E E E E E E E E E E Wind spd 13 14 13 12 13 12 9 10 11 12 13 12 12 13 12 11 12 13 13 13 14 Clouds SC SC SC SC SC SC SC SC FW FW B2 FW B1 B1 SC SC SC SC SC SC SC PoP 12hr 30 30 50 40 20 QPF 12hr 0.19 0.10 0.10 0.17 0.03 Rain shwrs C S C S C S S S S S C S C C S S S S S S S Heat index 94 91 87 88 98104105100 93 92 89 88 99104106 98 93 90 88 87 99 Max heat 106 93 98 105 104 92 99 106 105 92 99 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 80 92 80 92 80 92 80 92 Temp 92 84 81 87 92 84 81 87 92 84 81 87 92 84 81 87 92 85 Dewpt 77 77 77 78 77 77 77 77 76 76 76 78 78 78 78 78 78 77 PWind dir E E E E E E E E E Wind char GN GN GN GN GN BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC B1 SC SC SC B1 PoP 12hr 10 20 20 20 20 20 40 30 40 Rain shwrs S S S S S S S S S S S S C C C C C C $$ VIZ002-310800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue 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 78 90 79 Temp 83 81 80 80 86 89 90 86 82 80 79 78 85 89 90 85 82 81 80 79 86 Dewpt 76 76 76 76 76 76 76 76 76 76 76 76 77 77 77 77 77 77 76 76 77 RH 80 85 88 88 72 66 64 72 82 88 91 94 77 68 66 77 85 88 88 91 75 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 10 12 12 12 12 12 11 10 10 11 10 10 11 13 12 11 10 10 10 11 13 Clouds SC SC B2 SC SC SC SC SC SC FW B1 SC B1 B1 SC SC SC SC SC SC SC PoP 12hr 50 30 40 40 30 QPF 12hr 0.24 0.14 0.10 0.17 0.04 Rain shwrs S S C C S C S S S C S C C S S C C C C S Heat index 90 87 84 85 96101101 96 88 85 95101102 95 90 87 84 84 97 Max heat 103 89 96 101 101 87 95 103 102 89 97 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 91 78 91 78 91 78 91 79 91 Temp 91 82 79 86 91 82 79 86 91 82 79 86 91 83 80 86 91 83 Dewpt 76 76 76 76 76 76 76 76 76 75 76 77 77 77 77 77 77 77 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC FW FW SC SC SC SC SC SC SC SC B1 SC SC SC SC PoP 12hr 10 10 20 20 30 30 40 30 30 Rain shwrs S S S S S S S S S C C C C C S C C C $$