Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
105 FOCA52 TJSJ 090859 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 459 AM AST Thu Oct 9 2025 PRZ001-092015- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 459 AM AST Thu Oct 9 2025 Date Thu 10/09/25 Fri 10/10/25 Sat 10/11/25 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 91 79 91 Temp 78 85 90 91 85 82 80 79 79 85 90 91 85 82 80 79 79 85 90 91 85 82 Dewpt 74 75 76 77 75 76 75 75 75 75 75 76 76 75 75 75 75 76 76 76 76 75 RH 88 72 64 64 72 82 85 88 88 72 62 62 75 79 85 88 88 75 64 62 75 79 Wind dir S SE E E SE E SE SW SW SW N NW N S S S S S SE SE SE SE Wind spd 5 4 6 8 4 1 2 1 1 1 6 6 5 5 4 4 4 3 3 4 3 3 Clouds FW SC B1 B2 B2 B1 B2 B2 SC SC SC OV OV B1 B1 B1 B1 B1 B1 B2 B2 SC PoP 12hr 60 50 70 40 50 QPF 12hr 0.92 0.18 1.16 0.19 0.57 Rain shwrs S C C L C C C C C S L L C C C C C C C C C Tstms S S S S S S Heat index 94102104 94 89 85 93101104 94 89 85 94102103 94 89 Max heat 94 104 102 87 93 104 102 87 94 103 102 Heat Y Y Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 92 78 92 78 91 78 92 Temp 79 86 92 82 79 86 92 82 79 85 91 82 79 86 92 82 Dewpt 75 75 75 74 74 75 75 74 75 74 75 75 74 74 75 74 PWind dir SE SE SE E E SE S S Wind char LT LT LT GN LT GN LT LT Avg clouds SC SC SC SC FW SC SC FW FW FW SC FW CL FW SC B1 PoP 12hr 50 50 40 40 10 20 20 50 Rain shwrs C C C C S C C S S S S S S C C Tstms S S $$ PRZ002-092015- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 459 AM AST Thu Oct 9 2025 Date Thu 10/09/25 Fri 10/10/25 Sat 10/11/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 76 90 74 90 Temp 78 84 88 89 83 81 79 78 77 84 89 90 84 82 80 79 78 85 89 90 85 82 Dewpt 76 78 78 77 77 77 77 76 76 77 77 77 77 77 76 76 76 78 78 77 77 76 RH 94 82 72 68 82 88 94 94 97 80 68 66 80 85 88 91 94 80 70 66 77 82 Wind dir SE E SE SE SE N NE N W SW S S SW S S S S S S S S S Wind spd 8 8 8 6 4 4 5 5 5 6 4 4 4 4 3 4 9 8 10 10 9 9 Clouds B1 B1 B1 B1 B1 B1 B2 B2 SC B1 SC B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 40 50 60 40 60 QPF 12hr 0.23 0.19 1.10 0.19 1.19 Rain shwrs C C C C C C C C C C S L L C C C C C C L L C Tstms S S S S S S S Heat index 94101102 92 88 94102103 94 90 86 96103103 96 89 Max heat 94 103 100 86 94 103 102 88 96 104 102 Heat Y Y Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 90 77 89 77 89 78 89 Temp 80 85 90 82 79 84 89 81 79 84 89 81 79 84 89 81 Dewpt 75 77 76 75 75 76 76 76 76 76 76 76 75 77 76 76 PWind dir SE SE E E E SE SE S Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC FW FW SC SC FW CL FW SC FW CL FW SC SC PoP 12hr 50 50 30 30 20 20 30 30 Rain shwrs C C C S S C C S S S S C C C Tstms S S $$ PRZ007-092015- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 459 AM AST Thu Oct 9 2025 Date Thu 10/09/25 Fri 10/10/25 Sat 10/11/25 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 83 80 78 77 77 84 89 90 83 80 78 77 77 84 89 90 84 81 Dewpt 72 73 72 73 74 73 73 72 71 71 72 74 74 73 73 73 73 74 72 73 73 72 RH 85 70 57 58 74 79 85 85 82 65 57 60 74 79 85 87 87 72 57 58 70 74 Wind dir NE E SE SE SE N N N N N S S S SE NE SE SE SE SE S SE SE Wind spd 2 3 6 6 3 3 3 3 3 2 4 10 5 3 2 3 2 1 5 6 2 2 Clouds CL FW FW SC SC SC FW SC SC FW SC B1 B1 SC SC SC SC SC SC B2 B2 SC PoP 12hr 30 10 40 10 60 QPF 12hr 0.22 0.04 0.19 0.05 1.08 Rain shwrs S S C C S S S S C C S S S S S S L L C Tstms S S Heat index 90 96 99 90 84 89 96 99 90 84 91 96 98 90 85 Max heat 90 99 98 84 89 99 98 84 91 98 97 Heat Y Y Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 76 90 76 90 76 90 Temp 78 84 90 80 77 84 90 80 77 84 90 80 77 84 90 80 Dewpt 73 73 72 72 71 70 74 71 70 71 73 72 72 72 70 70 PWind dir E E E E NE E E S Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW SC SC FW CL FW FW FW FW SC SC SC PoP 12hr 30 20 30 30 0 5 30 30 Rain shwrs C C S S S C C S S S C C S $$ PRZ008-092015- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 459 AM AST Thu Oct 9 2025 Date Thu 10/09/25 Fri 10/10/25 Sat 10/11/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 76 87 77 88 Temp 76 82 86 87 82 79 78 77 76 82 86 87 82 79 78 77 77 83 87 88 82 80 Dewpt 72 75 76 76 74 75 76 74 73 76 77 77 75 75 76 74 73 75 77 77 75 75 RH 87 79 72 70 77 88 94 90 90 82 75 72 79 88 94 90 87 77 72 70 79 85 Wind dir E SE N NW NE N E SE S S W W SW S S S S S S S S SE Wind spd 3 3 3 8 4 4 5 4 5 5 5 8 5 2 1 3 3 5 6 12 10 8 Clouds CL CL FW B1 B1 CL CL FW SC SC FW SC B1 FW FW FW FW SC SC SC SC SC PoP 12hr 40 10 40 5 20 QPF 12hr 0.28 0.03 0.18 0.03 0.07 Rain shwrs C C S S S S C C S S S S S S S S S Tstms S S Heat index 89 96 98 88 89 97 98 89 90 98100 89 85 Max heat 89 98 95 89 98 96 90 100 98 Heat Y Y Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 88 76 87 76 88 76 88 Temp 77 83 88 80 77 82 87 79 77 83 88 80 77 83 88 80 Dewpt 74 75 76 75 73 74 76 75 73 74 75 75 74 75 76 74 PWind dir SE E E E E NE SE S Wind char LT LT LT GN GN LT LT GN Avg clouds SC FW SC B2 B2 B1 SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 10 60 60 60 40 50 30 50 Rain shwrs S S L L L L L L C C C C C C C C Tstms S S S S S S S S S S $$ PRZ010-092015- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 459 AM AST Thu Oct 9 2025 Date Thu 10/09/25 Fri 10/10/25 Sat 10/11/25 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 76 92 Temp 74 84 91 92 83 79 77 75 74 84 91 92 84 80 78 76 76 85 91 92 84 80 Dewpt 74 76 78 79 77 76 75 75 74 77 79 79 77 77 76 75 75 77 79 78 77 76 RH 100 77 66 66 82 91 94100100 80 68 66 80 91 94 97 97 77 68 64 80 88 Wind dir N NE W W N NE NE E N SE SW SW SW S SE SE SE SE S S S SE Wind spd 2 3 4 5 5 5 5 4 5 4 2 6 4 2 2 3 3 3 6 11 9 6 Clouds CL CL CL B2 B2 CL CL CL FW CL SC B1 B1 CL CL CL CL CL CL SC SC SC PoP 12hr 60 5 40 0 30 QPF 12hr 1.05 0.01 0.25 0 0.10 Rain shwrs L L S C C C C S Tstms S S Heat index 93105108 92 94107109 94 86 95108108 94 86 Max heat 93 108 105 94 109 105 95 109 104 Heat Y Y Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 92 74 92 74 92 74 92 Temp 76 85 92 79 75 84 92 79 75 84 92 79 75 84 92 79 Dewpt 75 76 78 76 74 76 77 76 74 75 78 76 74 77 78 75 PWind dir SE SE E E E SE SE S Wind char LT LT LT LT LT LT LT GN Avg clouds SC FW SC B2 B2 B1 SC B1 SC SC SC B1 SC SC SC SC PoP 12hr 10 60 60 60 50 50 30 30 Rain shwrs S S L L L L L L C C C C C C C C Tstms S S S S S S S S $$ VIZ001-092015- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 459 AM AST Thu Oct 9 2025 Date Thu 10/09/25 Fri 10/10/25 Sat 10/11/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 80 91 81 91 Temp 81 87 90 91 87 85 84 83 82 87 90 91 86 84 83 82 81 87 90 91 87 85 Dewpt 77 78 78 77 77 76 78 77 77 77 79 78 78 77 77 77 77 78 79 78 78 77 RH 88 75 68 64 72 75 82 82 85 72 70 66 77 80 82 85 88 75 70 66 75 77 Wind dir E E E SE E NE NE N W SW SW S S S S S S S S SE SE SE Wind spd 16 11 9 4 5 8 10 8 9 10 9 11 12 12 11 11 14 16 16 13 14 14 Clouds B2 B2 B1 B1 B2 B2 B2 B1 B1 B2 SC B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 50 50 60 60 60 QPF 12hr 0.21 0.20 0.50 0.54 1.28 Rain shwrs C C C C C C C C C C S C C L L C C C C L L C Tstms S S S S S S S S S S S S S S Heat index 88 99104105 99 95 95 92 90 99105105 98 94 92 90 88100105106 99 95 Max heat 99 105 103 95 99 106 104 94 100 107 104 Heat Y Y Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 91 80 91 79 91 82 90 Temp 83 87 91 84 82 87 91 84 82 87 91 85 83 86 90 84 Dewpt 77 77 76 77 76 76 77 77 76 77 76 76 76 77 77 77 PWind dir SE SE E E E SE SE S Wind char GN GN GN GN GN LT LT GN Avg clouds B2 B2 B1 SC SC SC FW FW CL FW SC FW CL FW SC SC PoP 12hr 60 60 40 20 20 20 20 20 Rain shwrs C L L C C C S S S S S S S S Tstms S S S S S $$ VIZ002-092015- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 459 AM AST Thu Oct 9 2025 Date Thu 10/09/25 Fri 10/10/25 Sat 10/11/25 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 80 89 Temp 77 84 89 90 84 81 79 78 77 84 89 90 84 81 80 80 80 84 88 89 84 81 Dewpt 76 77 77 77 77 76 76 76 76 77 77 77 77 77 77 77 76 77 77 77 76 76 RH 97 80 68 66 80 85 91 94 97 80 68 66 80 88 91 91 88 80 70 68 77 85 Wind dir E E E SE NE N N NE SW SW S S S S S S S SE SE S SE E Wind spd 12 9 8 4 4 6 8 6 6 8 9 10 9 10 10 12 14 13 13 13 12 10 Clouds B2 B2 B1 B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 50 50 60 60 60 QPF 12hr 0.21 0.22 0.52 0.56 1.32 Rain shwrs C C C C C C C C C C C C C L L C C L L L L C Tstms S S S S S S S S S S S S S S S Heat index 94101103 93 88 94102103 94 88 86 86 86 94100102 93 87 Max heat 94 103 101 86 94 103 101 86 94 102 100 Heat Y Y Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 76 89 76 90 78 90 Temp 79 85 90 82 79 84 89 81 78 84 90 82 79 85 90 81 Dewpt 76 77 76 76 75 76 76 76 76 76 76 76 76 77 76 76 PWind dir E E E E E SE SE S Wind char GN GN GN GN GN LT LT GN Avg clouds B2 B2 B2 B2 B2 B1 FW FW CL FW SC FW CL FW SC SC PoP 12hr 60 60 60 20 10 10 10 20 Rain shwrs C L L L L L S S S S S S S S Tstms S S S S S S $$