Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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217 FOCA52 TJSJ 070903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sun Sep 7 2025 PRZ001-072000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sun Sep 7 2025 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 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 78 90 79 92 Temp 85 89 90 85 82 80 79 78 85 89 90 85 82 81 80 79 87 91 92 86 82 Dewpt 75 76 76 76 75 75 75 75 75 76 76 75 75 75 74 74 74 75 75 75 75 RH 72 66 64 75 79 85 88 91 72 66 64 72 79 82 82 85 65 60 58 70 79 Wind dir E E E E E SE SE S SE E E E E SE E E E E E E E Wind spd 8 13 13 10 9 8 5 6 9 12 12 11 10 9 5 4 4 9 13 11 8 Clouds SC B2 B2 OV SC SC SC B2 B2 B2 B2 B2 SC SC CL CL SC SC SC SC B2 PoP 12hr 70 60 60 20 50 QPF 12hr 1.22 0.31 0.69 0.02 0.04 Rain shwrs C L C L C S S L C C L L S S S S S S C Tstms S S S S S Heat index 93100101 94 88 85 93100102 94 89 86 84 83 95102103 95 89 Max heat 93 102 101 87 93 102 100 88 95 104 102 Date Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 09/13/25 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 80 92 80 92 78 92 Temp 79 86 92 84 81 87 92 84 81 87 92 82 79 86 92 83 Dewpt 75 76 76 76 75 76 76 76 75 76 76 75 75 75 75 75 PWind dir SE E SE E E E E E Wind char LT GN LT LT GN GN GN LT Avg clouds B1 SC B1 B1 B1 B1 B1 B2 B1 B1 B1 B2 B1 B1 B1 B1 PoP 12hr 50 60 40 60 40 60 40 40 Rain shwrs C C L L C C L L C C L L C C C C Tstms S S S S S S S S S S $$ PRZ002-072000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sun Sep 7 2025 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 80 90 80 90 Temp 85 89 90 86 83 82 81 80 86 89 90 86 83 82 81 80 86 89 90 86 83 Dewpt 77 77 77 78 76 77 76 76 77 77 76 76 75 76 76 75 76 77 76 77 76 RH 77 68 66 77 80 85 85 88 75 68 64 72 77 82 85 85 72 68 64 75 80 Wind dir E E E SE E SE SE E E SE E E E E E E E E E E E Wind spd 9 11 10 12 11 11 9 9 13 11 12 12 10 11 9 6 6 8 8 6 6 Clouds B2 B2 B2 B2 B2 B2 OV B2 B2 B1 B2 B2 SC SC CL CL SC SC SC SC B2 PoP 12hr 60 70 60 20 50 QPF 12hr 1.27 0.52 0.69 0.02 0.14 Rain shwrs C L C L C L L L C C C L S S S S C C C Tstms S S S S S S S Heat index 96102103 97 91 89 87 86 96102102 96 91 88 86 86 95102102 97 91 Max heat 96 103 102 90 96 103 101 90 95 102 101 Date Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 09/13/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 89 80 89 80 90 80 90 Temp 81 85 89 83 80 85 89 83 80 86 90 83 81 86 90 83 Dewpt 76 78 77 77 77 78 77 77 77 77 77 76 76 76 76 76 PWind dir E E E E E E E E Wind char LT GN GN GN GN LT GN GN Avg clouds B1 SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 PoP 12hr 50 50 50 60 50 60 50 50 Rain shwrs C C C C C C L L C C L L C C C C Tstms S S S S S S S S S S $$ PRZ007-072000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sun Sep 7 2025 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 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 91 Temp 84 89 90 84 81 79 78 77 85 89 90 84 81 79 78 77 85 90 91 85 81 Dewpt 71 71 73 74 74 73 73 72 72 71 73 73 73 70 67 68 70 67 70 73 74 RH 65 56 58 72 79 82 85 85 65 56 58 70 77 74 69 74 61 47 50 67 79 Wind dir E SE SE E E E NE NE E SE SE SE E NE NE NE E E SE SE E Wind spd 3 11 11 10 8 6 5 5 5 13 10 11 8 5 4 4 5 10 9 8 4 Clouds CL CL SC SC CL B1 B1 SC FW CL SC SC FW FW CL CL CL CL FW FW CL PoP 12hr 30 40 10 5 0 QPF 12hr 0.19 0.22 0.01 0.01 0 Rain shwrs C S C C S S S S S Heat index 89 95 98 92 86 82 90 95 98 91 86 82 90 93 96 91 85 Max heat 89 98 98 85 90 98 97 84 90 96 96 Date Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 09/13/25 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 77 91 77 91 Temp 77 84 90 81 78 85 90 81 78 85 91 81 78 85 91 81 Dewpt 73 72 72 73 71 73 72 73 72 74 74 72 69 72 73 74 PWind dir E E E E E E E NE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC SC SC B1 SC SC SC SC SC SC SC FW PoP 12hr 20 20 10 50 20 30 20 20 Rain shwrs S S S S S C C S S C C S S S $$ PRZ008-072000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sun Sep 7 2025 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 76 88 76 88 Temp 83 87 88 83 80 78 77 76 83 87 88 83 80 78 77 76 83 87 88 83 80 Dewpt 75 76 76 74 74 74 74 72 74 75 76 75 75 75 74 72 74 75 76 75 75 RH 77 70 68 74 82 88 90 87 74 68 68 77 85 91 90 87 74 68 68 77 85 Wind dir E E E E E E SE E E E E E E E E E E E NE NE E Wind spd 11 12 8 6 4 6 5 5 6 5 5 9 9 8 11 8 4 4 6 6 10 Clouds FW FW B2 OV B1 CL CL FW SC SC B2 OV B2 B2 CL CL CL CL SC SC B2 PoP 12hr 80 40 70 50 50 QPF 12hr 1.14 0.10 0.62 0.08 0.02 Rain shwrs C D C S S L L C C S S C Tstms S C S S S S S Heat index 90 97 99 89 84 90 97 99 90 84 90 96 99 90 84 Max heat 90 99 97 90 99 97 90 99 97 Date Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 09/13/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 87 77 87 77 88 77 88 Temp 77 82 87 80 78 83 87 80 78 83 88 80 78 83 88 80 Dewpt 74 74 77 76 75 75 77 76 75 75 76 75 75 75 76 75 PWind dir E E E E E NE E E Wind char LT LT LT LT LT LT GN LT Avg clouds B1 SC B1 B1 SC SC SC B1 FW FW SC B1 SC SC SC B1 PoP 12hr 50 60 20 60 5 60 20 60 Rain shwrs C C L L S S L L L L S S L L Tstms S S S S S S S S S $$ PRZ010-072000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sun Sep 7 2025 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 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 75 93 75 93 Temp 85 91 93 85 80 78 76 76 85 91 93 85 80 78 76 76 85 91 93 85 80 Dewpt 75 77 78 76 76 76 75 74 76 77 78 77 76 75 74 73 75 76 78 77 76 RH 72 64 62 75 88 94 97 94 75 64 62 77 88 91 94 90 72 62 62 77 88 Wind dir E S SE NE NE E E E E SW N NE E E E E E E E NE E Wind spd 6 3 2 2 1 3 4 5 4 5 3 3 5 6 5 6 4 1 5 8 5 Clouds CL CL OV OV B1 CL CL CL CL CL OV OV B2 B2 CL CL CL CL B2 B2 SC PoP 12hr 80 40 80 50 60 QPF 12hr 1.14 0.10 1.08 0.08 0.75 Rain shwrs L D C L D C C L L S Tstms S C S S C S S S S Heat index 94105109 95 86 95105109 96 86 94104108 96 86 Max heat 94 109 107 84 95 109 107 84 94 108 107 Date Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 09/13/25 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 93 75 93 75 94 75 94 Temp 76 85 93 80 76 85 93 80 76 86 94 81 76 86 94 80 Dewpt 75 76 79 77 75 76 78 77 75 76 78 77 75 76 78 77 PWind dir E E E E E SE E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 SC SC SC B1 FW FW SC B1 SC FW SC B1 PoP 12hr 20 60 20 60 0 60 10 60 Rain shwrs S S L L S S L L L L S S L L Tstms S S S S S S S S $$ VIZ001-072000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sun Sep 7 2025 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 82 91 82 92 Temp 87 90 91 87 85 83 82 82 87 90 91 87 85 83 82 82 88 91 92 88 85 Dewpt 78 77 77 77 76 77 77 76 78 77 76 77 76 76 77 76 77 77 77 78 76 RH 75 66 64 72 75 82 85 82 75 66 62 72 75 80 85 82 70 64 62 72 75 Wind dir E SE E E E E SE E E E E E E E E E E E E E E Wind spd 16 18 16 16 18 18 17 16 17 17 16 17 17 17 13 10 10 9 9 9 11 Clouds SC B2 SC SC SC SC B1 SC FW CL SC SC SC SC CL CL SC SC SC SC B2 PoP 12hr 60 40 20 30 50 QPF 12hr 0.42 0.22 0.02 0.03 0.17 Rain shwrs C L S C C C C S S S S S C C C C C Tstms S S Heat index 99104104 99 94 93 91 90100103103 98 94 92 91 90100105105100 95 Max heat 99 105 104 94 100 103 102 93 100 106 105 Date Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 09/13/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 82 92 82 92 82 92 82 92 Temp 83 88 92 85 83 88 92 85 83 88 92 85 83 88 92 85 Dewpt 77 79 78 78 77 78 77 77 77 77 77 77 76 77 76 77 PWind dir E E E E E E E E Wind char BZ BZ GN BZ GN GN GN BZ Avg clouds B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 SC PoP 12hr 50 50 50 50 50 50 40 40 Rain shwrs C C C C C C C C C C C C C C C C Tstms S S S S S S $$ VIZ002-072000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sun Sep 7 2025 Date Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 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 78 92 78 91 Temp 86 91 92 86 82 80 79 78 86 91 92 86 82 80 79 78 86 90 91 85 82 Dewpt 77 77 77 76 76 76 76 76 76 76 75 75 75 75 75 75 76 76 76 76 76 RH 75 64 62 72 82 88 91 94 72 62 58 70 79 85 88 91 72 64 62 75 82 Wind dir E E SE SE E E E E E E E E E E E E E E E E E Wind spd 13 14 14 12 12 13 13 13 14 16 14 12 12 12 12 9 8 9 10 11 8 Clouds SC SC SC SC B1 B2 B1 SC SC SC SC B1 SC SC CL CL SC SC SC SC B1 PoP 12hr 50 60 40 20 40 QPF 12hr 0.33 0.40 0.22 0.01 0.04 Rain shwrs C C C C C L C C C C C C S S S S S S C Tstms S S Heat index 97103105 96 89 86 96102103 95 89 85 95101103 95 89 Max heat 97 105 104 88 96 103 102 87 95 103 102 Date Wed 09/10/25 Thu 09/11/25 Fri 09/12/25 Sat 09/13/25 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 91 79 90 78 90 Temp 79 86 91 82 79 86 91 83 80 85 90 82 79 85 90 82 Dewpt 76 77 77 77 76 78 77 76 76 77 76 75 76 76 76 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B1 SC SC B1 B1 B1 B1 B2 B2 B1 B1 SC SC B1 B1 SC PoP 12hr 50 40 40 50 50 40 40 40 Rain shwrs C C C C C C C C C C C C C C C S Tstms S S S $$