Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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258 FOCA52 TJSJ 132054 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 454 PM AST Wed Aug 13 2025 PRZ001-140815- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 454 PM AST Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 91 78 Temp 88 84 82 81 81 87 90 91 87 82 80 79 79 86 90 91 87 82 80 79 79 85 Dewpt 76 76 76 75 75 76 76 74 74 74 75 75 74 75 75 75 75 75 75 75 75 76 RH 68 77 82 82 82 70 64 58 65 77 85 88 85 70 62 60 68 79 85 88 88 75 Wind dir NE E E E E E E E E E E E E E E E E NE NE N N N Wind spd 11 9 9 9 10 12 13 13 13 8 10 9 9 9 13 13 12 8 5 4 3 4 Clouds SC SC SC SC SC SC SC SC B1 SC SC SC SC SC SC SC SC B1 B1 B2 B2 OV PoP 12hr 30 40 50 40 70 QPF 12hr 0.10 0.15 0.18 0.24 0.59 Rain shwrs C S C S S C C C C S C C C C C S S C C L L L Tstms S S S Obvis H H H Heat index 99 93 89 87 87 98102101 95 88 85 95101102 96 89 85 94 Max heat 102 91 98 102 98 88 95 102 101 89 94 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 92 79 93 79 92 Temp 90 82 79 85 90 82 79 87 92 83 80 88 93 84 80 87 92 83 Dewpt 77 77 77 77 77 77 76 76 77 76 75 76 77 76 75 76 72 74 PWind dir N W SW S S S SE SE E Wind char LT LT LT LT GN LT GN LT GN Avg clouds B2 B2 B2 B1 B1 B2 B1 B1 B1 B2 SC B1 B1 B2 B2 B1 SC B1 PoP 12hr 70 50 80 40 70 40 50 50 40 Rain shwrs L L C C D D C C L L C C C C C C C C Tstms S S S S S S S S S S S S S S $$ PRZ002-140815- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 454 PM AST Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 90 80 90 79 Temp 87 83 82 81 81 86 89 90 87 83 82 81 81 86 89 90 87 83 81 80 80 86 Dewpt 77 76 76 76 76 76 76 75 75 76 76 76 75 76 76 76 76 75 76 76 76 77 RH 72 80 82 85 85 72 66 62 68 80 82 85 82 72 66 64 70 77 85 88 88 75 Wind dir NE NE E E E E E E E E E E E E E E NE NE NE N N N Wind spd 10 11 9 11 10 12 14 14 10 10 11 10 10 11 12 11 11 8 6 8 8 8 Clouds SC SC SC B1 B2 B2 B2 SC SC FW FW SC SC SC SC SC SC B1 B1 B2 B2 OV PoP 12hr 50 50 50 50 70 QPF 12hr 0.15 0.12 0.12 0.21 0.59 Rain shwrs S C C C C C C C C S S C C C C S S C C L L L Tstms S S S Obvis H Heat index 99 91 89 87 87 96100101 96 91 89 87 87 96100102 98 90 87 86 86 97 Max heat 102 91 96 101 99 91 96 102 100 89 97 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 79 90 80 90 80 90 79 90 Temp 90 83 80 86 90 83 81 86 90 83 81 86 90 83 80 86 90 83 Dewpt 78 77 77 78 78 77 76 77 78 76 77 77 78 77 77 78 73 74 PWind dir N W SW S S S SE SE E Wind char LT LT GN GN GN GN GN LT GN Avg clouds B2 B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 B1 B2 B2 B1 SC SC PoP 12hr 70 70 70 70 70 60 50 50 40 Rain shwrs L L C L L L L L L L L L C C C C S C Tstms S S S S S S S S S S S S S S $$ PRZ007-140815- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 454 PM AST Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 90 76 90 75 Temp 87 82 80 78 78 85 89 90 86 81 79 77 77 85 89 90 85 80 78 76 77 84 Dewpt 73 73 73 72 71 71 71 72 69 66 67 70 70 70 70 73 73 72 71 69 70 71 RH 63 74 79 82 79 63 56 56 57 60 67 79 79 61 54 58 67 77 79 79 79 65 Wind dir E NE NE NE NE E E SE E NE NE NE NE E E SE E E NE N N N Wind spd 8 4 5 4 4 5 14 18 16 8 5 5 4 4 14 16 9 3 5 5 4 4 Wind gust 25 29 27 27 Clouds B1 SC CL SC FW FW FW SC SC CL CL FW CL CL FW B1 B1 FW FW CL CL CL PoP 12hr 10 20 5 40 0 QPF 12hr 0.02 0.06 0.01 0.27 0.01 Rain shwrs C S S S S S S C C Obvis H H H H H Heat index 94 87 84 90 95 97 90 83 90 94 98 92 84 89 Max heat 97 86 90 97 95 82 90 98 97 89 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 77 88 77 88 78 88 77 90 Temp 90 81 78 84 88 81 78 84 88 81 79 84 88 81 78 85 90 81 Dewpt 73 72 70 71 71 73 72 73 73 74 74 75 73 74 72 73 74 71 PWind dir W NW SW SW S SE SE E E Wind char LT LT LT LT LT LT GN LT GN Avg clouds SC B1 FW SC B2 SC B2 B1 B1 B1 B1 B1 B1 SC SC SC FW FW PoP 12hr 70 70 70 50 40 40 40 20 5 Rain shwrs L L L L C C C C C C C C S S S Tstms S S S S S S S S S S S $$ PRZ008-140815- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 454 PM AST Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 88 76 88 77 Temp 85 81 79 78 78 84 87 88 84 80 78 77 77 83 87 88 85 81 79 78 78 84 Dewpt 76 75 76 76 75 75 75 75 74 74 74 75 74 75 75 75 74 75 75 75 74 75 RH 75 82 91 94 91 74 68 66 72 82 88 94 90 77 68 66 70 82 88 91 88 74 Wind dir NE E E E E E E NE E E E E E E E NE NE E E NE NE NE Wind spd 14 14 14 12 12 14 16 14 14 16 12 16 14 14 14 16 12 12 11 9 9 10 Clouds SC SC CL FW FW FW FW CL SC CL CL CL FW FW FW CL CL FW FW B1 B1 B2 PoP 12hr 10 10 10 5 60 QPF 12hr 0.02 0.01 0.01 0.01 0.36 Rain shwrs S S S S S S C C L Tstms S Obvis H H H H H H Heat index 94 87 92 96 98 91 84 90 96 98 93 87 92 Max heat 96 85 92 98 96 90 98 96 85 92 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 87 78 88 77 88 76 88 Temp 88 81 78 83 87 81 79 84 88 81 78 84 88 80 77 83 88 81 Dewpt 77 76 77 77 77 76 76 76 76 76 76 76 76 76 76 75 75 75 PWind dir N N W SW S S S SE E Wind char GN LT LT GN BZ GN GN LT LT Avg clouds B2 B2 B2 SC SC B1 CL CL FW SC FW FW SC B1 CL CL FW SC PoP 12hr 60 50 70 0 40 5 60 0 20 Rain shwrs L C C C L L C C L L S S Tstms S S S S S S S S S S $$ PRZ010-140815- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 454 PM AST Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 93 74 93 74 Temp 87 81 78 76 77 86 92 93 87 80 78 75 76 86 92 93 87 80 78 75 76 86 Dewpt 77 76 76 75 74 75 77 78 75 74 73 73 73 76 77 77 77 75 75 74 74 76 RH 72 85 94 97 90 70 62 62 68 82 85 94 90 72 62 60 72 85 91 97 94 72 Wind dir NE NE NE NE NE E E SW NE NE NE NE E E SE E NE NE NE NE NE NE Wind spd 5 11 10 9 8 6 2 4 4 10 5 6 6 5 2 3 3 9 9 8 8 9 Clouds B2 SC CL CL CL CL CL SC B1 CL CL CL CL CL CL B1 B1 CL CL FW FW SC PoP 12hr 20 40 0 40 20 QPF 12hr 0.02 0.07 0 0.15 0.01 Rain shwrs L S S C C C S Tstms S Obvis H H H H H Heat index 99 87 95106109 96 84 96106107 99 85 96 Max heat 103 86 95 109 106 96 107 106 96 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 76 92 76 91 76 93 76 92 Temp 93 82 77 86 92 81 77 85 91 81 77 87 93 82 77 86 92 81 Dewpt 79 77 77 78 80 77 76 78 79 77 76 78 79 76 75 76 73 74 PWind dir N N W S S S SE SE E Wind char GN LT LT GN GN GN GN LT LT Avg clouds SC B1 SC SC B1 B1 SC FW FW FW FW FW SC B1 CL CL SC B1 PoP 12hr 50 20 70 5 10 0 60 0 60 Rain shwrs C C S S L L S S S S L L L L Tstms S S S S S S S S $$ VIZ001-140815- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 454 PM AST Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 92 81 92 81 Temp 89 85 83 82 82 88 91 92 89 85 83 82 82 88 91 92 89 85 83 82 82 88 Dewpt 77 76 77 76 76 75 74 74 76 76 76 76 76 76 76 75 76 75 77 76 77 78 RH 68 75 82 82 82 66 58 56 66 75 80 82 82 68 62 58 66 72 82 82 85 72 Wind dir NE E E E E E E E E E E E E E E E NE NE N N N N Wind spd 13 16 16 16 18 18 18 16 14 17 18 17 17 17 16 14 12 11 12 10 11 11 Clouds SC SC SC B1 B1 SC SC SC SC FW FW FW SC SC SC SC SC B1 B1 B2 B2 B2 PoP 12hr 40 30 40 50 60 QPF 12hr 0.09 0.05 0.07 0.19 0.59 Rain shwrs S S S C C C S S S S S S S C C S S C C L L L Tstms S S S Obvis H H H Heat index 102 94 92 89 89 98101102100 94 91 89 89 99103103100 94 92 89 90102 Max heat 103 93 98 102 102 92 99 103 102 93 102 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 81 92 81 92 82 92 81 92 Temp 92 85 82 88 92 85 82 88 92 85 83 88 92 85 82 88 92 85 Dewpt 78 78 78 78 77 77 78 78 77 78 77 78 77 77 77 78 73 74 PWind dir N W SW S S S SE E E Wind char LT LT GN BZ BZ GN GN GN BZ Avg clouds B2 B2 B2 B2 B2 B2 OV B2 B2 B1 B1 SC SC SC SC SC SC SC PoP 12hr 60 70 70 70 50 40 30 20 20 Rain shwrs L C C L L L L L C C C C C C S S S S Tstms S S S S S S S S S S S S $$ VIZ002-140815- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 454 PM AST Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 78 90 78 90 77 Temp 86 82 80 79 79 85 89 90 86 82 80 79 79 85 89 90 86 81 79 78 78 84 Dewpt 76 76 76 75 74 73 74 75 75 75 75 75 75 76 75 74 74 75 76 75 76 77 RH 72 82 88 88 85 67 61 62 70 79 85 88 88 75 64 60 68 82 91 91 94 80 Wind dir E NE NE E E E E E E E E E E E E E NE NE N N N N Wind spd 14 14 13 13 13 18 18 14 14 14 16 14 13 13 14 12 12 10 9 8 10 10 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC CL CL B1 B1 B2 B2 OV PoP 12hr 30 30 50 50 70 QPF 12hr 0.10 0.08 0.18 0.15 0.59 Rain shwrs C C S S C S S S S C C C C S C C C L L L Tstms S S S Obvis H H H H Heat index 96 89 86 92 98101 95 89 85 94 99 99 94 87 94 Max heat 99 87 92 101 99 87 94 101 98 87 94 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 78 90 79 90 79 90 Temp 89 81 78 84 89 82 79 85 90 83 80 86 90 83 80 86 90 82 Dewpt 77 76 77 77 77 77 76 77 77 77 77 77 77 76 76 77 73 74 PWind dir NW W SW S S SE SE E E Wind char LT LT BZ GN GN GN GN GN BZ Avg clouds B2 B2 B2 B2 B2 B1 B2 B2 B2 B1 SC SC SC SC SC SC FW SC PoP 12hr 70 60 60 60 60 30 20 20 30 Rain shwrs L C C L L L L L L C C C S S S S S C Tstms S S S S S S S S S S $$