Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
142 FOCA52 TJSJ 052103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Fri Sep 5 2025 PRZ001-060800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Fri Sep 5 2025 Date 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 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 82 81 80 79 85 89 90 85 82 81 80 79 85 89 90 85 82 80 79 78 85 Dewpt 76 76 76 75 76 76 76 76 76 76 75 75 75 76 76 75 75 75 75 75 75 RH 82 85 88 88 75 66 64 75 82 85 85 88 72 66 64 72 79 85 88 91 72 Wind dir E E E SE E E E E E E E E E E E E E E E E E Wind spd 10 9 8 8 6 13 16 12 9 10 8 5 9 13 16 12 9 8 8 6 8 Clouds B1 B1 B1 SC B1 B1 B1 B2 B1 B1 B2 B2 SC SC B2 B2 SC SC SC SC SC PoP 12hr 40 50 50 60 40 QPF 12hr 0.20 0.37 0.33 0.38 0.13 Rain shwrs C C C S C C C C C C C C C C L L C C C C C Tstms S S S S S Heat index 90 87 84 84 95100102 94 90 87 84 83 94100101 93 88 85 93 Max heat 95 88 95 102 101 89 94 102 100 87 93 Date 09/08 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 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 91 80 89 79 89 Temp 90 82 80 85 90 82 80 86 91 83 81 85 89 82 80 85 89 83 Dewpt 76 75 75 75 76 76 76 76 77 76 76 76 77 76 76 76 76 75 PWind dir E E E SE E SE E E E Wind char GN LT GN GN GN GN GN GN GN Avg clouds B1 B2 SC SC B1 B1 FW SC B1 B2 FW FW SC B2 SC SC SC SC PoP 12hr 60 40 70 40 80 10 70 50 50 Rain shwrs L L C C L L S C D D S S L L C C C C Tstms S S S S C C S S S S S $$ PRZ002-060800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Fri Sep 5 2025 Date 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 90 78 89 78 Temp 82 81 80 79 85 89 90 85 82 80 79 78 84 88 89 84 81 80 79 78 85 Dewpt 78 78 77 77 77 78 77 78 76 77 77 76 77 77 76 77 76 77 76 76 77 RH 88 91 91 94 77 70 66 80 82 91 94 94 80 70 66 80 85 91 91 94 77 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 11 11 11 10 12 11 10 10 10 11 9 9 12 12 11 10 10 10 9 9 12 Clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 SC PoP 12hr 60 60 60 60 60 QPF 12hr 0.38 0.48 0.42 0.44 0.23 Rain shwrs L L L C L L C C C C L L C C L L L L L L C Tstms S S S S S S S S S S S S S S S S S S S Heat index 91 88 85 84 96103103 96 89 85 94100100 94 88 85 95 Max heat 97 90 96 103 102 87 94 101 100 87 95 Date 09/08 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 78 90 78 89 80 90 79 90 Temp 90 82 79 85 90 82 79 84 89 83 80 86 90 82 80 85 90 84 Dewpt 77 76 77 77 77 77 77 78 78 77 77 77 78 76 76 77 77 77 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B2 SC SC B1 B2 SC SC B1 B2 FW SC B1 B2 B2 B2 SC SC PoP 12hr 60 50 70 50 80 30 60 60 50 Rain shwrs L L C C L L C C D D S C L L L L C C Tstms S S S S C C S S S S S S $$ PRZ007-060800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Fri Sep 5 2025 Date 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 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 89 76 88 76 Temp 80 79 78 78 84 88 89 83 80 78 77 76 83 87 88 83 80 78 77 77 83 Dewpt 73 73 73 73 73 73 73 73 73 72 72 71 72 72 72 73 73 72 72 72 72 RH 79 82 85 85 70 61 59 72 79 82 85 85 70 61 59 72 79 82 85 85 70 Wind dir E NE E NE E E SE SE E NE NE NE E SE SE E E E E NE E Wind spd 8 5 6 5 8 12 12 10 6 4 4 4 4 13 11 10 8 5 4 4 5 Clouds FW SC FW SC SC SC SC SC SC CL SC SC SC SC SC SC SC SC SC SC FW PoP 12hr 20 30 20 20 20 QPF 12hr 0.03 0.10 0.02 0.04 0.03 Rain shwrs S S S S C C S S S S S S S S S S S S Heat index 85 90 95 97 89 84 89 94 95 89 84 89 Max heat 90 84 90 97 96 82 89 95 95 82 89 Date 09/08 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 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 89 78 88 77 87 Temp 88 80 78 84 89 80 77 84 89 81 79 84 88 80 77 83 87 81 Dewpt 73 73 71 72 74 74 73 74 73 72 73 70 71 73 71 72 73 71 PWind dir E E E E E E E NE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW FW FW SC SC SC FW FW SC SC FW FW SC SC SC SC SC SC PoP 12hr 10 40 40 10 30 20 30 30 40 Rain shwrs S S S C C C S S C C S S S C C C C C Tstms S S S $$ PRZ008-060800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Fri Sep 5 2025 Date 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 89 77 88 76 Temp 81 79 78 78 84 88 89 84 81 79 78 77 83 87 88 83 80 78 77 77 83 Dewpt 76 76 75 74 76 77 77 75 75 76 75 73 75 76 76 74 75 75 75 73 75 RH 85 91 91 88 77 70 68 74 82 91 91 87 77 70 68 74 85 91 94 87 77 Wind dir E E E E E E E E E E E E E E NE E E E E E E Wind spd 13 12 9 9 9 6 9 9 13 9 11 9 9 8 4 5 3 5 8 8 8 Clouds SC SC CL CL FW SC OV B2 B1 B1 FW FW SC SC OV OV SC SC SC SC FW PoP 12hr 10 70 40 70 10 QPF 12hr 0.02 1.16 0.12 1.41 0.01 Rain shwrs S S C L L C C S S S S L L S S S S S Tstms S S S S Heat index 87 83 93100101 92 86 91 97 99 90 84 90 Max heat 92 86 93 102 100 85 91 99 97 83 90 Date 09/08 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 76 88 77 88 78 88 77 87 Temp 88 80 77 83 88 80 77 83 88 81 79 84 88 80 77 83 87 81 Dewpt 76 75 75 75 77 76 76 76 77 76 76 76 77 76 76 76 76 75 PWind dir E E E E E E E E E Wind char LT GN GN LT GN GN GN GN GN Avg clouds SC B2 SC SC SC SC SC SC B1 B2 SC SC FW SC FW FW SC SC PoP 12hr 70 50 40 40 80 40 40 20 40 Rain shwrs L L C C C C C C D D C C C C S S S C Tstms S S C C S $$ PRZ010-060800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Fri Sep 5 2025 Date 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 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 94 75 92 74 Temp 81 78 76 76 86 92 94 86 81 78 76 76 85 90 92 84 80 77 75 75 85 Dewpt 77 77 75 75 77 77 79 77 76 76 75 74 76 77 78 77 76 75 74 74 76 RH 88 97 97 97 75 62 62 75 85 94 97 94 75 66 64 80 88 94 97 97 75 Wind dir NE E E E E E W NE E E E E E E E NE E E E E E Wind spd 3 4 4 3 4 3 3 6 3 5 4 3 3 2 1 8 2 5 4 3 3 Clouds FW FW CL CL CL SC OV OV B1 SC FW FW FW FW OV OV SC SC SC SC FW PoP 12hr 0 80 40 80 20 QPF 12hr 0.01 1.16 0.09 1.61 0.03 Rain shwrs S D L C C D D S S S S S Tstms S S S S Heat index 88 97106111 97 87 94104107 94 84 95 Max heat 96 85 97 111 110 84 94 107 106 95 Date 09/08 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 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 92 75 93 76 93 75 92 Temp 93 80 75 84 92 80 76 85 93 81 77 86 93 80 76 85 92 81 Dewpt 78 76 75 76 79 76 75 76 80 77 75 77 79 77 76 77 78 76 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 B2 SC SC SC B2 SC SC SC B2 SC SC SC B2 FW FW SC SC PoP 12hr 80 50 80 20 70 30 80 20 30 Rain shwrs D D C C D D S S L L C C D D S S S C Tstms C C C C S S C C S $$ VIZ001-060800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Fri Sep 5 2025 Date 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 90 80 90 80 Temp 84 82 81 81 86 89 90 86 83 82 81 80 86 89 90 86 83 82 81 80 86 Dewpt 78 78 77 78 78 78 77 78 77 77 77 76 77 77 76 77 76 77 76 77 77 RH 82 88 88 91 77 70 66 77 82 85 88 88 75 68 64 75 80 85 85 91 75 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 16 17 17 16 14 13 13 12 14 17 16 16 17 17 14 14 16 16 17 16 17 Clouds B1 B1 B2 B1 B2 B2 B1 SC B2 B1 B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 SC PoP 12hr 50 50 60 50 50 QPF 12hr 0.30 0.36 0.42 0.53 0.20 Rain shwrs C C C C C C C C C C L L C C C C C C C C C Tstms S S S S S S S S S S S S S S Heat index 94 92 89 90 98103102 97 92 89 87 86 97102102 96 91 90 87 87 97 Max heat 99 93 98 103 102 90 97 102 101 90 97 Date 09/08 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 80 90 80 90 81 90 80 90 Temp 90 83 81 86 90 83 81 86 90 84 81 86 90 83 81 86 90 85 Dewpt 77 77 77 78 78 78 78 78 78 78 77 78 78 77 77 78 77 77 PWind dir E E E E E E E E E Wind char BZ BZ GN BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC B1 B2 SC SC B1 B1 SC SC SC B1 B2 B2 SC SC PoP 12hr 50 50 60 50 60 30 60 60 50 Rain shwrs C C C C L L C C L L S C C L L L C C Tstms S S S S S S S S S $$ VIZ002-060800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Fri Sep 5 2025 Date 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 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 91 78 90 79 Temp 83 82 81 80 86 90 91 85 82 80 79 78 85 89 90 85 82 81 80 79 86 Dewpt 77 77 77 76 77 77 76 76 76 76 76 76 76 76 76 76 76 76 76 75 77 RH 82 85 88 88 75 66 62 75 82 88 91 94 75 66 64 75 82 85 88 88 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 14 16 16 13 13 13 12 12 12 14 13 12 16 16 14 13 12 13 12 11 14 Clouds SC B1 SC B1 B1 SC B1 SC B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 SC PoP 12hr 40 50 50 50 50 QPF 12hr 0.20 0.25 0.33 0.36 0.20 Rain shwrs C C C C C C C C C C C C C C C C C C C C C Tstms S S S S S S S S S Heat index 92 90 87 86 97102103 95 89 86 94100101 95 90 87 84 84 97 Max heat 97 91 97 104 102 88 94 101 101 89 97 Date 09/08 Tue 09/09/25 Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 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 79 90 79 91 79 91 79 91 Temp 91 83 80 85 90 82 80 86 91 83 80 86 91 83 80 86 91 83 Dewpt 76 76 76 77 77 76 77 77 77 77 77 77 76 76 76 76 77 76 PWind dir E E E E E E E E E Wind char GN GN GN GN BZ BZ BZ GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC FW FW SC B1 B2 B2 B1 B2 PoP 12hr 50 50 50 50 50 20 60 60 60 Rain shwrs C C C C C C C C C C S S C L L L L L Tstms S S S S S S S $$