Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
700 FOCA52 TJSJ 150903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Tue Jul 15 2025 PRZ001-152000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 79 90 78 91 Temp 85 89 90 87 82 80 79 80 85 89 90 87 82 80 78 80 86 90 91 88 82 Dewpt 75 75 76 76 76 76 75 75 76 76 76 76 76 76 76 75 76 77 77 77 76 RH 72 64 64 70 82 88 88 85 75 66 64 70 82 88 94 85 72 66 64 70 82 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 9 12 16 14 12 11 11 10 12 16 14 13 10 10 10 11 12 14 14 13 10 Clouds B1 SC B2 B2 B2 B1 SC B1 B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC CL PoP 12hr 60 60 60 40 20 QPF 12hr 0.60 0.28 0.84 0.08 0.14 Rain shwrs C C C L L C S C C L L L C C S S S S S S Tstms S S S S Obvis H H H H H Heat index 93 99102 98 89 86 84 95100102 98 89 86 84 96103105100 90 Max heat 93 102 101 88 95 102 101 88 96 105 104 Heat Y Y Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 77 90 78 91 78 91 Temp 79 86 91 82 78 85 90 82 78 86 91 82 79 86 91 82 Dewpt 75 76 75 75 75 75 75 74 74 75 75 75 74 74 74 75 PWind dir E E E E SE E E E Wind char GN GN LT GN LT GN GN GN Avg clouds CL FW SC SC SC SC SC FW FW FW SC SC SC SC SC SC PoP 12hr 20 20 20 30 20 20 20 30 Rain shwrs S S S S S S S S S S S S S C $$ PRZ002-152000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 80 88 80 89 Temp 85 88 89 87 82 81 80 80 84 87 88 86 83 81 80 81 85 88 89 87 82 Dewpt 75 76 76 76 76 76 75 75 76 76 76 76 76 76 76 76 76 77 77 76 76 RH 72 68 66 70 82 85 85 85 77 70 68 72 80 85 88 85 75 70 68 70 82 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 11 12 14 16 14 14 14 12 14 17 14 13 11 12 13 13 14 14 14 12 10 Clouds B1 B2 B1 B2 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 SC SC B1 B1 SC SC CL PoP 12hr 60 60 60 50 40 QPF 12hr 0.47 0.31 0.88 0.12 0.20 Rain shwrs C C C C L C S C L L L L C C S S C C S S Tstms S S S Obvis H H H Heat index 93 99100 97 90 87 84 85 94 98 99 96 91 88 86 88 95101102 97 90 Max heat 93 100 100 89 94 99 99 90 95 102 101 Heat Y Y Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 88 78 88 79 89 79 89 Temp 79 84 88 81 78 84 88 82 79 85 89 82 79 85 89 83 Dewpt 75 75 75 75 74 74 75 75 74 75 75 75 74 75 75 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds CL FW SC SC B1 B1 SC SC B2 B1 SC SC SC SC B1 B1 PoP 12hr 20 40 40 50 50 20 40 60 Rain shwrs S S C C C C C C C S S S C C L $$ PRZ007-152000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 77 91 77 92 Temp 85 90 91 88 82 79 78 79 85 90 91 88 82 79 78 79 86 91 92 88 81 Dewpt 72 75 76 76 75 73 73 72 74 76 77 77 75 73 73 73 75 76 77 78 76 RH 65 62 62 68 79 82 85 79 70 64 64 70 79 82 85 82 70 62 62 72 85 Wind dir E SE SE SE E E NE NE E E E E E E E E E E SE E E Wind spd 8 14 14 16 10 6 5 4 5 17 20 16 9 6 5 6 9 14 14 13 9 Wind gust 25 26 27 33 26 25 26 Clouds CL CL SC FW SC SC CL SC SC FW B1 B1 SC SC SC SC CL CL SC SC CL PoP 12hr 10 5 40 10 20 QPF 12hr 0.05 0.05 0.43 0.03 0.29 Rain shwrs S S S S S C C S S S S S S Tstms S S Obvis H H H H H Heat index 90100103 98 88 83 93102105 99 88 83 95103106102 88 Max heat 90 103 104 86 93 105 104 86 95 106 106 Heat Y Y Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 91 75 90 76 90 76 91 Temp 77 85 91 80 76 84 90 81 77 84 90 81 77 85 91 81 Dewpt 73 74 77 75 72 74 77 75 72 74 76 75 72 70 70 73 PWind dir E E E E E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds CL CL FW SC CL CL FW SC FW FW FW FW CL CL FW SC PoP 12hr 0 40 0 20 5 0 0 10 Rain shwrs C C S S S S $$ PRZ008-152000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 77 87 76 88 Temp 82 86 87 85 80 79 77 78 83 86 87 84 80 78 76 78 83 87 88 85 80 Dewpt 73 74 75 75 76 76 75 76 75 75 76 75 75 76 76 76 75 76 77 76 76 RH 74 68 68 72 88 91 94 94 77 70 70 74 85 94100 94 77 70 70 75 88 Wind dir E E E E E E E E E E NE E E E E E E E E E E Wind spd 11 12 17 18 13 13 10 11 16 21 21 21 19 16 14 12 13 12 16 16 12 Clouds CL CL B2 OV SC SC SC SC FW CL B2 B2 B1 B1 B1 B1 CL CL B1 B1 B1 PoP 12hr 70 30 50 40 40 QPF 12hr 0.89 0.12 0.51 0.11 0.59 Rain shwrs L L C C C S C C C C C C C C C Tstms S S S S S S Heat index 88 94 96 93 86 90 95 98 92 84 91 98100 94 86 Max heat 88 96 97 85 90 98 97 83 91 100 99 Heat Y Y Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 87 75 87 75 87 75 87 Temp 76 83 87 79 75 82 87 79 75 82 87 79 75 82 87 80 Dewpt 76 75 76 75 75 74 75 75 75 74 76 75 75 73 75 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC FW FW SC FW FW SC SC SC SC FW B1 FW FW FW SC PoP 12hr 40 10 5 40 20 50 5 10 Rain shwrs C S S S S S S C C S S $$ PRZ010-152000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 74 93 Temp 84 90 92 88 80 77 75 76 85 91 92 88 80 77 75 76 85 91 93 88 80 Dewpt 73 76 78 78 76 76 74 73 76 78 79 78 76 76 74 74 76 78 80 79 78 RH 70 64 64 72 88 97 97 90 75 66 66 72 88 97 97 94 75 66 66 75 94 Wind dir NE E E E E E E E E E E E E E E E E E E E E Wind spd 5 3 4 2 4 3 3 4 6 8 5 8 5 5 5 4 4 2 2 2 6 Clouds CL CL B2 OV SC SC SC FW CL CL B2 OV OV OV B2 B2 CL CL OV OV SC PoP 12hr 70 20 80 70 70 QPF 12hr 1.00 0.06 1.78 0.18 1.03 Rain shwrs L L S S S L D L L L L L L C Tstms S S S S S S S S S S Obvis H H Heat index 91102107101 86 94105109101 86 95107112103 88 Max heat 91 107 106 83 94 109 108 83 95 112 111 Heat Y Y Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 73 91 74 92 74 92 Temp 75 85 92 79 74 84 91 80 75 85 92 80 75 85 92 80 Dewpt 75 76 79 76 74 75 78 76 74 75 78 76 74 75 78 76 PWind dir E NE E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW FW SC CL CL SC B1 SC FW SC B1 CL CL SC B2 PoP 12hr 30 60 0 80 5 60 0 70 Rain shwrs C L L L L S S L L L L Tstms S S S S S S S S $$ VIZ001-152000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 80 90 80 91 Temp 87 90 91 88 84 82 80 81 86 89 90 88 83 82 80 81 87 90 91 89 84 Dewpt 76 76 77 76 77 77 77 77 76 76 77 77 77 77 77 77 77 77 77 77 77 RH 70 64 64 68 80 85 91 88 72 66 66 70 82 85 91 88 72 66 64 68 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 18 19 19 20 21 23 23 20 20 20 19 18 19 19 20 19 20 19 18 17 17 Clouds B1 B2 B1 B1 B2 B2 SC B1 B2 B2 B2 B2 B2 B2 SC SC B1 B1 SC SC SC PoP 12hr 50 60 60 50 40 QPF 12hr 0.43 0.33 0.77 0.12 0.35 Rain shwrs C C C C C C C C L L C C C C S S C C S S S Tstms S S Obvis H H H Heat index 97102105 99 93 90 87 89 96101103 99 93 90 87 89 98103105101 95 Max heat 97 105 104 92 96 103 103 92 98 105 104 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 91 80 90 81 91 80 91 Temp 81 87 91 84 80 86 90 84 81 87 91 84 80 87 91 84 Dewpt 77 76 76 76 75 76 75 75 76 75 76 75 75 76 76 77 PWind dir E E E E E E E E Wind char BZ GN GN GN BZ BZ BZ BZ Avg clouds SC SC SC SC B1 B1 SC FW B1 B1 SC SC SC SC B1 SC PoP 12hr 20 40 40 40 40 20 40 40 Rain shwrs S S S C C C C C C C S S S C C C $$ VIZ002-152000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 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 78 89 78 89 Temp 84 88 89 86 82 80 78 79 85 88 89 86 82 80 78 79 85 88 89 86 82 Dewpt 75 76 77 76 76 76 76 75 76 76 77 76 76 77 76 76 77 77 77 76 75 RH 74 68 68 72 82 88 94 88 75 68 68 72 82 91 94 91 77 70 68 72 79 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 13 16 16 18 19 20 19 17 17 18 18 17 14 17 17 17 18 19 18 16 14 Clouds SC SC B1 B1 B1 SC SC B1 B1 B1 B2 B2 SC SC CL CL SC SC SC SC CL PoP 12hr 50 50 60 30 30 QPF 12hr 0.36 0.27 0.73 0.06 0.33 Rain shwrs S C C C C C C C C C C L C C C C S S Tstms S S Obvis H H H Heat index 92 99102 96 89 85 84 94 99102 96 89 85 84 95100102 96 88 Max heat 92 102 101 88 94 102 101 88 95 102 101 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 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 89 77 89 79 89 78 89 Temp 78 85 89 81 77 84 89 82 79 85 89 82 78 85 89 82 Dewpt 75 76 76 75 75 75 74 75 74 75 76 75 74 74 75 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN BZ GN BZ Avg clouds CL FW SC SC B1 B1 SC SC SC FW FW SC SC SC SC SC PoP 12hr 10 40 40 20 10 10 20 40 Rain shwrs S S C C C S S S S S S S S S C $$