Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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595 FOCA52 TJSJ 260632 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 232 AM AST Sat Sep 26 2026 PRZ001-262000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 232 AM AST Sat Sep 26 2026 Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 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 79 91 80 90 Temp 80 87 91 92 86 83 81 80 79 86 90 91 86 83 82 81 80 86 89 90 85 82 Dewpt 75 75 75 75 75 75 76 75 75 76 76 76 76 76 76 76 76 76 76 76 76 76 RH 85 68 60 58 70 77 85 85 88 72 64 62 72 80 82 85 88 72 66 64 75 82 Wind dir S SE E E E SE SE SE SE SE E E E E E E E E E E E E Wind spd 4 6 11 14 10 6 8 5 5 6 12 16 13 10 9 6 8 11 13 14 14 10 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B2 B2 B1 B1 B1 B1 B1 PoP 12hr 30 20 30 50 40 QPF 12hr 0.11 0.09 0.28 0.16 0.29 Rain shwrs S S S C S S S S S S C C S S S C C C C C C C Heat index 86 96101103 95 90 88 84 84 96101103 96 92 89 86 86 96100101 95 90 Max heat 96 103 102 89 96 103 103 91 96 102 101 Heat Y Y Date Tue 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri 10/02/26 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 79 88 78 88 77 88 79 89 Temp 80 84 88 81 79 84 88 80 78 83 88 82 80 85 89 81 Dewpt 75 76 77 75 75 75 76 75 75 75 75 75 75 75 75 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC B2 PoP 12hr 30 40 40 40 40 30 30 50 Rain shwrs C C C C C C C C C C C C C C C C Tstms S S $$ PRZ002-262000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 232 AM AST Sat Sep 26 2026 Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 81 90 81 90 Temp 79 85 89 90 86 84 82 81 81 86 89 90 86 84 82 81 81 86 89 90 86 83 Dewpt 75 76 76 75 75 75 76 76 76 77 77 77 77 76 76 76 76 77 77 76 76 76 RH 88 75 66 62 70 74 82 85 85 75 68 66 75 77 82 85 85 75 68 64 72 80 Wind dir E SE SE SE SE E E E E E E E E E E E E E E E E E Wind spd 6 9 10 9 8 6 8 9 9 10 11 10 10 10 10 10 11 11 12 13 11 10 Clouds SC SC SC SC SC SC SC SC B2 B2 B2 SC SC B1 B1 B2 B2 B1 B1 B1 B1 B2 PoP 12hr 30 60 50 50 50 QPF 12hr 0.13 0.25 0.34 0.24 0.30 Rain shwrs C C S S S S C C L C C C S C C C C C C C C C Heat index 83 95100101 95 92 90 88 88 97102102 97 92 90 88 88 97102102 96 91 Max heat 95 101 100 91 97 103 102 91 97 102 101 Heat Y Y Date Tue 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri 10/02/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 88 78 88 76 88 80 89 Temp 81 85 88 81 79 84 88 80 77 83 88 82 81 85 89 82 Dewpt 76 76 76 75 75 76 76 75 76 76 76 75 76 76 76 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B2 B1 B1 B2 B2 B1 B1 B1 B1 B1 SC SC B1 B1 SC B2 PoP 12hr 50 50 50 40 40 40 40 50 Rain shwrs C C C C C C C C C C C C C C C C Tstms S S $$ PRZ007-262000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 232 AM AST Sat Sep 26 2026 Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 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 77 90 78 90 Temp 77 85 90 91 85 81 79 78 77 85 89 90 85 82 80 79 78 85 89 90 84 80 Dewpt 73 72 72 74 74 73 73 72 71 73 72 73 74 74 73 72 72 72 72 74 71 72 RH 87 65 56 58 70 77 82 82 82 67 57 58 70 77 79 79 82 65 57 60 65 77 Wind dir NE E SE SE SE NE NE NE NE E SE SE SE E NE NE NE E E SE E E Wind spd 4 5 10 9 6 4 4 3 4 4 10 11 10 6 4 4 4 6 10 12 13 9 Wind gust 24 Clouds FW FW SC SC SC SC SC SC FW CL SC SC SC FW FW FW FW FW FW SC SC SC PoP 12hr 20 20 20 5 30 QPF 12hr 0.11 0.04 0.20 0.01 0.16 Rain shwrs S S S S S S S S S S S C C S Heat index 91 97100 92 86 83 91 96 98 92 87 84 91 96 99 89 84 Max heat 91 100 99 85 91 98 98 86 91 99 98 Heat Y Y Date Tue 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri 10/02/26 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 75 88 76 89 Temp 77 83 88 80 77 83 88 79 76 82 88 80 77 83 89 79 Dewpt 72 72 74 71 71 71 73 72 71 71 68 71 72 69 73 73 PWind dir NE E NE E NE E E E Wind char LT GN LT GN LT GN LT GN Avg clouds SC SC SC B1 SC SC SC SC SC SC SC SC FW FW FW SC PoP 12hr 10 40 10 20 10 20 0 10 Rain shwrs S S C C S S S S S S S S S S $$ PRZ008-262000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 232 AM AST Sat Sep 26 2026 Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 77 88 77 87 Temp 77 84 88 89 84 81 79 78 77 83 87 88 83 80 79 78 77 83 86 87 82 79 Dewpt 73 75 76 76 76 76 76 74 73 75 77 77 77 77 77 75 74 76 78 78 77 77 RH 87 74 68 66 77 85 91 88 87 77 72 70 82 91 94 91 90 80 77 75 85 94 Wind dir SE E N N NE E SE SE E E NE NE E E E E E E E NE E E Wind spd 4 3 4 9 5 6 5 6 2 5 5 4 4 10 9 8 8 8 10 13 14 19 Clouds FW FW FW B1 B2 B2 SC FW FW CL FW OV B2 B2 B2 FW FW FW FW OV OV FW PoP 12hr 60 60 80 50 70 QPF 12hr 0.32 0.21 0.94 0.09 0.63 Rain shwrs C L L S D L C C L L S Tstms S S S S S S S S S Heat index 92 99100 92 86 91 98100 92 87 91 99101 91 84 Max heat 92 101 99 85 91 101 99 85 91 101 99 Heat Y Y Date Tue 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri 10/02/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 88 75 85 75 86 75 86 Temp 77 83 87 79 76 81 85 78 76 81 86 78 76 81 86 79 Dewpt 74 76 78 77 74 76 77 77 74 76 78 77 74 76 77 76 PWind dir E E E E E E E E Wind char GN BZ BZ BZ GN GN GN GN Avg clouds FW FW SC B1 SC FW SC B1 SC SC SC B2 SC SC SC B2 PoP 12hr 5 50 10 60 10 60 30 60 Rain shwrs S S C C S S L L S S L L C C L L Tstms S S S S S S S S $$ PRZ010-262000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 232 AM AST Sat Sep 26 2026 Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 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 75 92 75 90 Temp 76 85 90 92 85 80 78 76 76 85 90 92 85 80 78 76 75 84 89 90 83 79 Dewpt 73 76 78 77 77 76 75 74 73 76 78 78 78 77 76 75 74 76 79 79 78 77 RH 90 75 68 62 77 88 91 94 90 75 68 64 80 91 94 97 97 77 73 70 85 94 Wind dir E E S NW NE NE E E E NE W N NE E E E E E NE NW E E Wind spd 3 5 3 5 4 6 4 5 4 5 2 6 5 5 4 3 2 2 4 5 3 5 Clouds FW FW FW OV OV OV FW FW FW CL FW OV B2 B1 B1 FW FW CL CL B2 B2 FW PoP 12hr 80 70 80 40 70 QPF 12hr 0.70 0.17 0.92 0.07 0.61 Rain shwrs L D L D L C C L L Tstms S S S S S S S Heat index 94105106 95 86 94105107 96 87 93104105 93 Max heat 94 107 105 83 94 108 106 83 93 106 104 Heat Y Y Date Tue 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri 10/02/26 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 89 73 88 72 88 74 89 Temp 75 83 89 78 74 82 88 77 73 81 88 78 75 83 89 78 Dewpt 74 76 79 77 74 76 78 77 73 76 78 77 74 76 78 76 PWind dir E E E E E E E E Wind char LT LT GN LT LT LT LT LT Avg clouds FW FW SC B1 FW CL SC B1 FW FW SC B2 B2 B1 SC B1 PoP 12hr 0 70 0 60 0 60 50 60 Rain shwrs L L L L L L C C L L Tstms S S S S S S S S $$ VIZ001-262000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 232 AM AST Sat Sep 26 2026 Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 79 91 81 90 Temp 81 86 89 90 85 82 81 80 79 86 90 91 87 84 83 82 81 86 89 90 86 83 Dewpt 74 75 75 75 75 75 76 76 76 76 76 75 76 75 76 76 76 76 76 75 76 75 RH 79 70 64 62 72 79 85 88 91 72 64 60 70 74 80 82 85 72 66 62 72 77 Wind dir E SE SE SE SE E E E E E E E E E E E E E E E E E Wind spd 11 12 11 13 9 11 12 12 13 14 13 12 12 14 16 17 17 13 14 16 14 16 Clouds B1 B2 B1 SC SC SC SC B1 B1 SC B1 SC SC B1 B1 SC SC SC SC SC SC B1 PoP 12hr 50 40 40 40 30 QPF 12hr 0.21 0.15 0.31 0.12 0.19 Rain shwrs C C C C S S C C C C C C S C C C C C C C C C Tstms S Heat index 87 95 99100 94 89 87 84 84 96102102 97 92 90 88 88 96100101 95 90 Max heat 95 100 99 88 96 103 101 91 96 101 100 Heat Y Y Date Tue 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri 10/02/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 88 79 88 79 88 80 89 Temp 81 85 88 82 79 84 88 82 80 84 88 82 81 85 89 83 Dewpt 76 76 75 75 75 75 75 75 75 75 75 75 75 75 74 75 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ GN Avg clouds B1 SC SC SC SC SC SC SC B1 SC SC SC SC SC SC B1 PoP 12hr 30 30 30 30 30 30 20 40 Rain shwrs C C S C C C S C C C C S S S C C $$ VIZ002-262000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 232 AM AST Sat Sep 26 2026 Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26 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 81 90 Temp 79 86 90 91 86 83 81 80 79 86 90 91 87 84 83 82 81 86 89 90 85 82 Dewpt 76 76 77 77 77 76 77 77 77 77 78 77 77 77 77 77 76 77 77 77 77 76 RH 91 72 66 64 75 80 88 91 94 75 68 64 72 80 82 85 85 75 68 66 77 82 Wind dir E E SE E E E E E E E E E E E E E E E E E E E Wind spd 11 11 11 13 11 10 11 11 11 12 13 13 13 12 16 14 11 14 14 13 14 16 Clouds B2 B1 B1 SC B2 FW B2 B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 60 30 30 30 QPF 12hr 0.28 0.21 0.23 0.09 0.17 Rain shwrs C C C C C C L C S S S S C C C C C C S S C Tstms S Heat index 84 96102104 96 91 88 85 84 97104104 98 93 91 89 88 97101102 95 90 Max heat 96 104 103 89 97 105 103 92 97 103 102 Heat Y Y Date Tue 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri 10/02/26 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 79 88 78 88 77 88 79 89 Temp 80 84 88 81 79 84 88 80 78 83 88 82 80 85 89 82 Dewpt 76 77 77 76 76 76 76 76 76 77 77 76 76 76 76 76 PWind dir E E E E E E E E Wind char GN GN BZ BZ BZ BZ GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 PoP 12hr 30 20 20 20 20 20 40 40 Rain shwrs C C S S S S S S S S S S S C C C $$