Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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907 FOCA52 TJSJ 130632 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 232 AM AST Sun Sep 13 2026 PRZ001-132000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 232 AM AST Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 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 80 92 79 92 Temp 81 87 91 92 87 84 82 81 80 87 91 92 86 83 81 80 79 87 91 92 86 83 Dewpt 75 75 76 76 75 75 75 75 75 75 75 75 75 75 75 75 74 75 75 75 75 75 RH 82 68 62 60 68 74 79 82 85 68 60 58 70 77 82 85 85 68 60 58 70 77 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 9 9 13 13 12 10 10 8 6 10 13 14 13 10 8 8 10 12 16 13 12 8 Clouds SC SC B1 SC SC SC SC FW SC SC SC SC SC CL CL SC SC SC SC B2 B2 SC PoP 12hr 40 30 30 20 50 QPF 12hr 0.09 0.07 0.29 0.03 0.37 Rain shwrs S C C S S S S C C S C C S S S S C C S Obvis H Heat index 87 97103105 96 91 89 86 86 96102103 96 90 87 84 83 96102103 96 90 Max heat 97 105 102 90 96 103 102 89 96 103 102 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 92 79 92 79 92 79 92 Temp 80 87 92 83 80 87 92 83 80 87 92 83 80 87 92 83 Dewpt 75 75 75 76 76 76 77 76 75 75 76 76 75 75 76 75 PWind dir E E E E SE E SE E Wind char GN GN GN GN LT GN LT GN Avg clouds SC SC SC SC SC SC B2 B1 SC SC FW FW SC SC SC SC PoP 12hr 5 20 50 50 30 30 30 30 Rain shwrs S S S S S C C C C C S C C C S C $$ PRZ002-132000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 232 AM AST Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 81 90 81 90 Temp 82 87 89 90 86 84 82 81 81 86 89 90 86 84 82 81 81 86 89 90 86 84 Dewpt 75 76 76 76 76 75 76 75 75 76 76 76 76 75 75 75 75 75 75 75 76 75 RH 79 70 66 64 72 74 82 82 82 72 66 64 72 74 79 82 82 70 64 62 72 74 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 10 11 12 11 12 10 11 10 10 11 13 11 11 11 10 10 13 12 14 13 12 9 Clouds SC SC B1 CL SC SC FW SC B1 SC B2 B1 SC SC SC SC SC SC SC B2 B2 SC PoP 12hr 40 40 50 30 50 QPF 12hr 0.06 0.08 0.20 0.08 0.40 Rain shwrs S C C S S C C C C C C C C S S S S C C C Obvis H Heat index 89 96100102 96 92 90 88 87 96100101 96 91 90 88 87 96100101 96 91 Max heat 96 102 100 91 96 101 101 91 96 101 100 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 90 80 90 81 90 81 90 Temp 81 86 90 83 81 86 90 84 81 86 90 84 81 86 90 83 Dewpt 75 76 76 76 77 77 77 76 76 76 76 75 75 76 75 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC B2 B2 B2 B2 B2 B1 FW SC SC SC SC B1 PoP 12hr 30 50 60 60 50 30 30 40 Rain shwrs C C S C C L L L C C S C C C C C Tstms S S S $$ PRZ007-132000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 232 AM AST Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 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 78 91 77 91 Temp 78 86 91 92 86 82 80 79 78 86 90 91 85 81 79 78 77 85 90 91 85 81 Dewpt 71 71 71 72 72 71 71 72 71 71 71 73 72 73 72 71 71 72 68 70 73 72 RH 79 61 52 52 63 69 74 79 79 61 54 56 65 77 79 79 82 65 49 50 67 74 Wind dir NE E SE SE SE E NE NE NE E E SE E E E NE NE E E E E E Wind spd 4 5 14 19 14 9 5 5 4 4 16 14 11 6 5 6 3 3 13 17 12 4 Wind gust 25 32 26 26 24 28 Clouds CL CL SC SC SC SC FW CL SC FW CL SC SC CL CL CL CL FW FW SC SC CL PoP 12hr 20 10 30 0 30 QPF 12hr 0.08 0.02 0.26 0 0.12 Rain shwrs S S S S S S C C C Obvis H Heat index 92 98100 92 87 84 91 96 99 91 86 83 91 93 96 92 85 Max heat 92 100 99 85 91 99 98 85 91 96 96 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 77 91 78 90 77 90 77 90 Temp 78 85 91 82 79 85 90 81 78 85 90 81 78 85 90 81 Dewpt 71 70 71 73 72 76 78 73 72 72 71 75 73 72 72 74 PWind dir NE E E E E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds CL CL FW SC FW SC B1 B1 B2 B1 SC SC FW FW SC SC PoP 12hr 5 20 40 60 60 20 5 30 Rain shwrs S S C C L L L S S C C Tstms S S S $$ PRZ008-132000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 232 AM AST Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 77 88 76 88 Temp 77 83 87 88 83 81 79 78 77 83 87 88 83 80 78 77 76 83 87 88 83 80 Dewpt 74 76 78 77 76 77 76 74 74 76 77 76 76 76 76 74 73 76 77 76 76 76 RH 90 80 75 70 80 88 91 88 90 80 72 68 80 88 94 90 90 80 72 68 80 88 Wind dir E E E NE E E E E E E E E E E E E E E E NE E E Wind spd 13 14 17 17 13 17 13 10 9 11 12 12 11 11 5 8 11 13 14 12 2 3 Clouds FW FW CL CL SC SC SC CL SC SC CL SC SC SC SC CL CL CL CL B2 B2 FW PoP 12hr 30 20 20 5 50 QPF 12hr 0.15 0.02 0.29 0.01 0.24 Rain shwrs C S S S S S S S S C C S Obvis H Heat index 93100100 91 87 92 99 99 91 85 91 99 99 91 85 Max heat 93 100 98 85 92 100 98 91 99 98 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 89 78 89 76 88 77 88 Temp 77 84 89 81 79 84 89 80 77 83 88 80 78 83 88 80 Dewpt 74 76 76 77 75 77 78 77 75 77 77 77 74 76 77 77 PWind dir E E E E E E E E Wind char GN GN GN GN LT GN LT LT Avg clouds FW FW SC B1 SC SC SC B2 B1 SC SC B1 SC SC SC B2 PoP 12hr 5 40 20 70 40 50 30 60 Rain shwrs S S C C S S L L C C C C C C L L Tstms S S S S $$ PRZ010-132000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 232 AM AST Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 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 94 Temp 77 85 91 92 85 81 78 76 76 85 90 92 85 80 78 76 76 86 92 94 86 81 Dewpt 73 75 78 76 77 76 75 74 73 76 78 77 77 76 76 74 73 76 78 77 77 76 RH 87 72 66 60 77 85 91 94 90 75 68 62 77 88 94 94 90 72 64 58 75 85 Wind dir NE NE E S E E E E NE NE E S E E E E E E E N NE E Wind spd 6 6 2 3 5 5 3 3 4 5 2 2 2 2 5 5 8 6 3 3 1 5 Clouds CL CL CL B2 OV SC FW CL CL CL CL OV OV CL CL CL CL CL CL OV OV SC PoP 12hr 70 30 70 0 70 QPF 12hr 1.11 0.06 1.28 0 1.21 Rain shwrs C L C L L L L S Tstms S S S S S S Obvis H Heat index 96106105 96 87 94105105 95 86 96107108 97 87 Max heat 96 106 105 84 94 106 105 83 96 109 107 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 75 94 76 92 75 94 75 94 Temp 76 86 94 81 77 85 92 81 76 86 94 81 76 86 94 81 Dewpt 74 75 77 77 75 77 78 77 75 76 78 77 75 76 77 77 PWind dir E NE E E E E E NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC B1 SC FW SC B2 SC SC SC B1 SC SC SC B2 PoP 12hr 10 50 10 70 20 50 20 60 Rain shwrs S S C C S S L L S S C C S S L L Tstms S S S S $$ VIZ001-132000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 232 AM AST Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 82 90 82 91 Temp 82 87 90 91 87 85 83 82 82 87 89 90 87 84 83 82 82 87 90 91 87 85 Dewpt 75 74 74 72 74 73 74 74 73 73 73 73 74 73 74 74 74 73 72 73 74 73 RH 79 65 60 54 65 67 74 77 74 63 59 58 65 70 74 77 77 63 56 56 65 67 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 17 17 16 14 16 16 16 16 16 17 16 16 14 14 16 14 17 20 18 17 16 16 Clouds FW CL SC SC SC SC CL SC FW FW SC SC SC FW FW SC SC SC SC SC SC SC PoP 12hr 20 20 20 20 30 QPF 12hr 0.03 0.03 0.03 0.04 0.09 Rain shwrs S S S S S S S S S S S S S S S S C Obvis H Heat index 89 95 99 99 95 92 90 89 88 94 97 98 95 91 90 88 88 95 98 99 95 92 Max heat 95 100 98 91 94 98 98 90 95 99 99 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 82 89 82 89 82 89 82 88 Temp 82 86 89 84 82 86 89 85 82 86 89 84 82 85 88 83 Dewpt 74 74 74 75 76 77 76 74 75 74 73 73 74 73 72 73 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ GN Avg clouds SC SC FW SC B2 B2 B2 B1 SC SC SC SC SC SC B1 B1 PoP 12hr 30 50 60 60 20 20 30 40 Rain shwrs C C S C C L L L S S S S S C C C Tstms S S S $$ VIZ002-132000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 232 AM AST Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 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 80 88 Temp 81 86 89 90 86 83 82 81 81 86 89 90 86 83 82 81 80 85 87 88 85 82 Dewpt 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 75 76 76 76 76 76 RH 85 72 66 64 72 80 82 85 85 72 66 64 72 80 82 85 85 75 70 68 75 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 14 16 16 16 16 14 14 12 13 16 16 14 13 14 13 12 14 19 18 17 14 12 Clouds CL FW FW SC SC FW SC SC SC CL SC FW SC SC SC SC SC SC SC SC SC B1 PoP 12hr 30 30 30 30 40 QPF 12hr 0.06 0.06 0.02 0.09 0.08 Rain shwrs S S C S S C S S S S C C C C S S S S C Obvis H Heat index 88 95100102 96 92 90 88 88 96100101 95 91 88 86 85 93 97 98 93 90 Max heat 95 102 99 91 96 101 100 90 93 98 98 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 90 80 89 80 89 81 88 Temp 80 86 90 83 81 85 89 83 80 85 89 83 81 85 88 82 Dewpt 76 76 77 77 77 77 77 77 77 77 76 76 76 76 76 75 PWind dir E E E E E E E E Wind char GN BZ GN BZ BZ GN GN GN Avg clouds B1 SC FW SC B2 B2 B2 B1 SC SC SC SC SC SC SC SC PoP 12hr 40 50 60 60 20 20 20 30 Rain shwrs C C S C C L L L S S S S S S C C Tstms S S S $$