Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
448 FOCA52 TJSJ 080836 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 436 AM AST Wed Oct 8 2025 PRZ001-082015- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 436 AM AST Wed Oct 8 2025 Date Wed 10/08/25 Thu 10/09/25 Fri 10/10/25 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 78 91 78 91 Temp 78 85 90 91 85 82 80 79 78 85 90 91 85 82 80 79 78 85 90 91 85 82 Dewpt 75 75 76 76 76 76 76 75 75 76 76 76 75 75 75 75 75 75 76 76 76 75 RH 91 72 64 62 75 82 88 88 91 75 64 62 72 79 85 88 91 72 64 62 75 79 Wind dir SE SE SE E SE SE SE S S SE E SE E E E E N SW W NW W SW Wind spd 4 4 9 13 11 6 5 3 5 6 8 10 6 3 2 2 3 2 1 2 2 1 Clouds SC SC SC SC SC SC SC B1 SC SC B1 B2 B2 SC SC SC SC SC SC B2 B2 B1 PoP 12hr 30 40 50 30 60 QPF 12hr 0.36 0.24 0.65 0.06 0.74 Rain shwrs C S S S C S S C C C C C C C C C C C C L L C Tstms S S Heat index 94102103 94 89 86 95102103 93 88 85 94102103 94 88 Max heat 94 103 102 88 95 103 101 87 94 103 102 Date Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 91 78 92 78 92 78 91 Temp 79 85 91 82 79 86 92 82 79 86 92 82 79 85 91 82 Dewpt 75 75 76 75 75 75 75 75 74 75 75 75 75 75 75 75 PWind dir S SE SE E E E SE SE Wind char LT LT LT LT LT GN LT LT Avg clouds B1 B1 B1 B2 SC SC SC SC FW SC SC FW FW FW FW FW PoP 12hr 40 60 50 50 40 40 10 10 Rain shwrs C C L L C C C C S C C S S S S $$ PRZ002-082015- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 436 AM AST Wed Oct 8 2025 Date Wed 10/08/25 Thu 10/09/25 Fri 10/10/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 78 89 77 90 Temp 78 84 88 89 84 81 80 79 78 84 88 89 83 81 79 78 77 84 89 90 84 82 Dewpt 76 78 78 77 77 76 77 76 76 77 77 77 77 76 76 76 76 77 77 77 77 77 RH 94 82 72 68 80 85 91 91 94 80 70 68 82 85 91 94 97 80 68 66 80 85 Wind dir SE SE SE SE SE SE SE SE SE SE SE SE E E NE NE NE SW SW S SW SW Wind spd 3 5 9 10 11 10 9 8 8 9 8 6 5 2 4 4 1 1 3 5 4 4 Clouds B1 B2 SC SC B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B1 PoP 12hr 50 50 40 40 60 QPF 12hr 0.33 0.37 0.41 0.10 0.75 Rain shwrs C C C C C C C C C C C C C C C C C C C L L C Tstms S S S S S Heat index 95102101 93 88 85 94100101 92 87 83 94102103 94 89 Max heat 95 103 102 88 94 103 100 86 94 103 102 Date Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 90 79 90 78 89 78 89 Temp 79 85 90 82 80 85 90 82 79 84 89 81 79 84 89 81 Dewpt 76 77 77 76 76 76 76 75 75 77 76 76 75 76 76 75 PWind dir S S SE SE E E E SE Wind char GN GN LT LT LT GN GN LT Avg clouds B1 B1 B1 B2 SC SC SC FW FW SC SC FW CL FW SC CL PoP 12hr 40 60 50 50 30 30 20 20 Rain shwrs C C L L C C C S S C C S S S $$ PRZ007-082015- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 436 AM AST Wed Oct 8 2025 Date Wed 10/08/25 Thu 10/09/25 Fri 10/10/25 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 77 90 76 90 Temp 77 84 89 90 84 81 79 78 77 84 89 90 83 80 78 77 76 84 89 90 83 80 Dewpt 74 76 78 79 78 77 75 74 73 76 78 79 78 77 75 74 73 76 78 78 78 77 RH 90 77 70 70 82 88 88 88 87 77 70 70 85 91 91 90 90 77 70 68 85 91 Wind dir NE E SE SE SE E NE NE NE E SE SE SE NE N N NE NE S S SW SW Wind spd 3 3 8 6 6 4 5 4 3 6 9 5 4 3 3 2 3 2 5 6 5 2 Clouds FW FW FW FW FW SC SC SC SC SC SC SC B1 SC SC SC SC FW FW B1 B1 SC PoP 12hr 20 30 40 10 40 QPF 12hr 0.07 0.17 0.24 0.01 0.16 Rain shwrs S S S S S S C S S S C C S S S S C C S Tstms S Heat index 93103106 94 88 83 93103106 93 87 93103104 93 87 Max heat 93 106 104 87 93 106 104 84 93 105 103 Date Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 76 90 77 90 76 90 76 90 Temp 77 84 90 81 78 84 90 80 77 84 90 80 77 84 90 80 Dewpt 74 77 78 76 74 76 78 76 73 76 77 76 73 76 77 76 PWind dir SE SE E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 SC SC FW FW FW SC SC FW CL FW FW FW PoP 12hr 10 50 20 20 30 30 0 5 Rain shwrs S S C C S S S S S C C S $$ PRZ008-082015- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 436 AM AST Wed Oct 8 2025 Date Wed 10/08/25 Thu 10/09/25 Fri 10/10/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 76 87 76 87 Temp 76 83 87 88 82 80 78 77 76 82 86 87 82 79 78 77 76 82 86 87 82 79 Dewpt 72 75 76 77 76 75 74 74 72 75 76 76 75 75 75 74 73 75 76 76 75 75 RH 87 77 70 70 82 85 88 90 87 79 72 70 79 88 91 90 90 79 72 70 79 88 Wind dir SE E NE N NE SE SE SE SE E NE N NE NE E E SE S SW W SW S Wind spd 3 4 3 5 2 2 2 1 3 5 3 6 4 1 3 3 2 2 4 8 4 1 Clouds FW CL SC B2 B2 SC FW FW FW FW SC B2 B2 SC SC FW FW SC SC B1 B1 SC PoP 12hr 60 30 60 10 40 QPF 12hr 1.24 0.07 1.01 0.01 0.16 Rain shwrs S C L C S C L S S S S S S C C S Tstms S S S S Heat index 90 98100 90 84 89 96 97 88 83 89 96 97 88 83 Max heat 90 100 97 89 98 96 89 98 96 Date Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 88 76 88 76 87 76 88 Temp 77 83 88 80 77 83 88 80 77 82 87 79 77 83 88 80 Dewpt 74 75 76 75 74 75 76 75 73 74 76 75 73 74 75 75 PWind dir S S SE E E E E E Wind char LT GN LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC SC B2 B2 B1 SC B1 SC SC FW SC PoP 12hr 5 20 20 60 60 60 40 30 Rain shwrs S S S S S S L L L L L L C C S C Tstms S S S S S S $$ PRZ010-082015- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 436 AM AST Wed Oct 8 2025 Date Wed 10/08/25 Thu 10/09/25 Fri 10/10/25 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 74 92 74 92 Temp 75 85 92 93 84 80 77 75 74 84 91 92 83 79 77 75 74 84 91 92 84 80 Dewpt 74 76 78 79 77 76 76 75 74 76 78 79 77 76 76 75 74 76 78 79 77 77 RH 97 75 64 64 80 88 97100100 77 66 66 82 91 97100100 77 66 66 80 91 Wind dir NE E S S NE NE E E E E S NE NE E NE E E SE SW SW SW S Wind spd 3 3 3 9 8 8 4 2 3 4 4 6 4 1 3 4 3 2 4 5 3 1 Clouds CL CL SC B2 B2 SC FW FW FW FW SC B2 B2 CL CL CL CL CL CL B1 B1 CL PoP 12hr 50 30 60 0 40 QPF 12hr 0.84 0.08 1.09 0 0.23 Rain shwrs S C C C S L L C C Tstms S S S S Heat index 95107110 93 85 93105109 92 84 93105109 93 87 Max heat 95 110 108 93 110 106 93 109 106 Date Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 92 75 92 74 92 74 92 Temp 76 85 92 80 76 85 92 79 75 84 92 79 75 84 92 79 Dewpt 75 76 78 76 75 76 78 76 74 75 78 76 75 75 77 75 PWind dir SE SE SE SE E E E SE Wind char LT GN GN LT LT LT LT LT Avg clouds CL CL FW SC SC SC SC B2 B2 B1 SC B1 SC SC FW SC PoP 12hr 0 20 20 60 60 60 50 30 Rain shwrs S S S S L L L L L L C C S C Tstms S S S S S S $$ VIZ001-082015- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 436 AM AST Wed Oct 8 2025 Date Wed 10/08/25 Thu 10/09/25 Fri 10/10/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 81 91 82 91 Temp 81 86 89 90 86 84 83 82 81 87 90 91 87 85 84 83 82 87 90 91 86 84 Dewpt 78 78 78 78 78 77 78 77 77 78 78 77 78 77 77 77 77 78 78 78 78 77 RH 91 77 70 68 77 80 85 85 88 75 68 64 75 77 80 82 85 75 68 66 77 80 Wind dir E SE E SE SE SE E E E E SE SE E NE NE NE NE W SW SW SW S Wind spd 6 9 14 16 17 17 14 13 16 17 13 12 10 8 11 8 3 2 4 6 8 12 Clouds B2 B2 SC SC SC B1 B1 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 50 50 50 50 50 QPF 12hr 0.30 0.39 0.49 0.30 0.48 Rain shwrs C C C C C C C C C C C C C C C C C C C C C C Tstms S S S S Heat index 89 98104104 98 93 92 89 88 99105104 99 95 93 91 90100105106 99 94 Max heat 98 105 106 93 99 106 104 94 100 106 105 Date Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 91 82 91 81 91 81 91 Temp 82 87 91 85 83 87 91 84 82 87 91 84 82 87 91 85 Dewpt 77 77 78 76 76 76 77 77 77 77 77 77 77 77 77 76 PWind dir S SE SE E E E E SE Wind char BZ BZ GN GN GN GN GN GN Avg clouds B2 B2 B2 B2 SC B1 B1 SC SC SC FW FW CL FW SC CL PoP 12hr 50 60 60 60 40 20 20 20 Rain shwrs C C L L C L L C C C S S S S Tstms S S S $$ VIZ002-082015- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 436 AM AST Wed Oct 8 2025 Date Wed 10/08/25 Thu 10/09/25 Fri 10/10/25 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 77 90 77 90 Temp 77 84 89 90 84 81 79 78 77 84 89 90 84 81 79 78 77 84 89 90 84 81 Dewpt 76 77 78 77 77 76 77 76 77 78 77 77 77 77 76 76 76 77 77 78 77 77 RH 97 80 70 66 80 85 94 94100 82 68 66 80 88 91 94 97 80 68 68 80 88 Wind dir E E SE SE SE E E E E E E E E NE NE NE SE SW SW S S S Wind spd 4 6 12 12 13 13 11 12 13 14 12 11 8 4 5 3 1 1 5 6 10 12 Clouds B2 B1 SC SC SC B1 SC B1 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 40 50 60 50 50 QPF 12hr 0.28 0.35 0.55 0.30 0.48 Rain shwrs C C C C C C C C C C C L C C C C C C C C C C Tstms S S S S Heat index 94103103 93 87 84 95102103 93 88 84 94102104 93 88 Max heat 94 105 103 87 95 104 101 87 94 104 103 Date Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 89 77 90 Temp 78 84 89 81 79 85 90 82 79 84 89 81 78 84 90 82 Dewpt 76 77 78 76 76 76 77 75 76 77 77 76 76 77 77 76 PWind dir S SE E E E E E SE Wind char GN GN GN GN GN GN GN GN Avg clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 FW FW CL FW FW CL PoP 12hr 50 60 60 60 60 20 10 10 Rain shwrs C C L L C L L L L L S S S S Tstms S S S S $$