Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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713 FOCA52 TJSJ 020903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sat Aug 2 2025 PRZ001-022000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sat Aug 2 2025 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 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 92 79 92 Temp 85 88 89 86 82 80 79 79 87 91 92 88 83 81 80 80 87 91 92 88 83 Dewpt 76 76 77 77 76 76 76 75 76 77 76 77 76 77 76 76 76 76 76 76 76 RH 75 68 68 75 82 88 91 88 70 64 60 70 80 88 88 88 70 62 60 68 80 Wind dir E SE SE SE SE SE SE SE SE E E E E SE E E E E E E E Wind spd 6 12 14 10 8 8 6 5 8 13 18 13 10 10 10 9 12 16 16 13 10 Clouds OV OV B2 B1 B1 B2 B2 B2 SC SC B2 B2 SC SC B1 B1 SC SC SC SC SC PoP 12hr 70 60 50 40 30 QPF 12hr 0.84 0.43 0.69 0.21 0.14 Rain shwrs L L L C C L C C C C C C C C C C C C S S C Tstms S S S S S Obvis H H Heat index 94 99102 97 89 86 98105105100 91 88 86 86 98103105 99 91 Max heat 94 102 100 89 98 106 103 91 98 105 103 Date Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 91 79 91 78 92 78 92 Temp 80 86 91 83 80 86 91 82 79 87 92 83 79 87 92 83 Dewpt 76 75 75 75 76 76 76 75 75 76 75 75 75 75 75 75 PWind dir E E E E SE E E E Wind char GN GN LT GN LT GN GN GN Avg clouds SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 30 40 40 40 30 30 20 20 Rain shwrs C C S C C C C S S C C S S S S S $$ PRZ002-022000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sat Aug 2 2025 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 80 89 81 90 Temp 84 87 87 85 83 82 81 81 86 88 89 87 84 83 81 82 87 89 90 87 84 Dewpt 77 77 77 78 77 76 76 76 77 77 77 77 77 77 77 76 77 77 77 77 77 RH 80 72 72 80 82 82 85 85 75 70 68 72 80 82 88 82 72 68 66 72 80 Wind dir E SE SE SE SE SE SE SE SE SE E E E E E E E E E E E Wind spd 10 13 14 13 12 12 11 10 11 13 13 13 12 13 13 11 14 14 14 12 12 Clouds OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 SC SC SC PoP 12hr 70 70 60 50 40 QPF 12hr 0.88 0.62 0.89 0.27 0.19 Rain shwrs L L L C L L L L C C L C C C C C C C C C C Tstms S S S S S S S S Heat index 94 99 99 97 92 89 87 87 97100102 99 94 92 88 89 99102103 99 94 Max heat 94 100 99 89 97 102 102 92 99 103 103 Date Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 90 80 89 80 90 80 90 Temp 82 87 90 83 81 86 89 83 81 86 90 83 81 86 90 83 Dewpt 76 76 76 76 75 76 76 75 75 76 76 75 75 76 75 76 PWind dir E E NE E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC B1 B2 B1 B1 SC SC SC SC B1 B1 B1 SC SC PoP 12hr 30 50 50 40 30 40 40 30 Rain shwrs C C C C C C C C S C C C C C C C Tstms S S $$ PRZ007-022000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sat Aug 2 2025 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 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 78 89 78 91 Temp 83 86 87 84 82 80 79 79 85 88 89 86 82 80 79 79 86 90 91 87 82 Dewpt 75 78 79 78 77 76 74 74 76 78 78 78 77 75 74 73 75 77 77 77 76 RH 77 77 77 82 85 88 85 85 75 72 70 77 85 85 85 82 70 66 64 72 82 Wind dir E E SE SE E E E E E SE SE E E E E E E E SE E E Wind spd 4 12 12 11 9 10 10 9 9 12 13 12 10 6 6 8 10 14 14 13 9 Wind gust 25 25 24 Clouds SC B2 B2 B1 B2 B2 OV B2 B2 B1 SC SC SC SC SC SC SC SC SC SC CL PoP 12hr 70 70 50 30 20 QPF 12hr 0.71 0.55 0.59 0.10 0.08 Rain shwrs S L L C C C L C C C C C S S C C S S S S Tstms S S Obvis H H H H H H Heat index 90 98101 95 90 86 94102103 98 90 85 95103105 99 89 Max heat 90 101 101 88 94 103 102 87 95 105 103 Date Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 77 93 76 90 76 91 76 91 Temp 78 87 93 82 77 85 90 81 77 85 91 81 77 85 91 81 Dewpt 71 69 70 71 73 74 78 76 73 74 76 75 72 74 77 75 PWind dir NE E NE E E E NE E Wind char LT GN LT GN LT GN LT GN Avg clouds CL CL FW SC FW FW FW FW CL FW FW FW FW FW SC FW PoP 12hr 5 20 5 10 10 10 5 10 Rain shwrs S S S S S S S S S $$ PRZ008-022000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sat Aug 2 2025 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 77 89 77 90 Temp 83 86 87 84 81 79 78 78 84 88 89 85 81 79 78 78 85 89 90 86 81 Dewpt 76 76 76 75 76 76 76 75 75 75 76 75 76 76 76 76 75 76 76 76 76 RH 80 72 70 74 85 91 94 91 74 66 66 72 85 91 94 94 72 66 64 72 85 Wind dir E E E NE E E SE E E E E E E E E E E E NE E E Wind spd 13 10 4 2 3 5 6 4 5 8 10 2 4 6 8 10 10 10 17 16 12 Clouds SC B2 OV OV SC SC SC SC SC SC B2 B2 SC SC FW FW CL CL B2 B2 SC PoP 12hr 70 10 60 10 60 QPF 12hr 0.79 0.10 1.21 0.01 1.24 Rain shwrs S L L L S S S S S S L L S S L L S Tstms S S S S S S S Obvis H H H H H H Heat index 91 96 98 92 87 92 98100 94 87 94100102 96 87 Max heat 91 98 99 86 92 100 99 86 94 102 100 Date Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 88 77 88 75 88 76 88 Temp 78 84 88 81 78 84 88 79 76 83 88 80 77 83 88 81 Dewpt 76 75 75 75 76 75 76 75 76 74 75 75 76 74 76 76 PWind dir E E E E E NE E E Wind char GN BZ GN GN LT LT GN GN Avg clouds SC FW FW FW SC SC B1 B2 SC FW FW SC SC FW SC SC PoP 12hr 5 10 20 70 10 40 10 40 Rain shwrs S S S S S L L S S C C S S C C Tstms S S $$ PRZ010-022000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sat Aug 2 2025 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 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 76 94 76 94 Temp 85 90 91 86 82 79 77 78 87 93 94 88 82 79 77 78 87 93 94 88 81 Dewpt 77 78 79 78 76 76 75 74 77 78 79 78 77 76 75 74 76 78 79 78 77 RH 77 68 68 77 82 91 94 88 72 62 62 72 85 91 94 88 70 62 62 72 88 Wind dir E S SE SE SE E E E E SE E E E E E E E E E E E Wind spd 9 6 13 13 10 8 10 9 6 5 4 1 5 5 4 5 4 2 2 2 4 Clouds FW B2 OV OV SC SC SC SC SC SC B2 B2 FW FW FW FW CL CL B2 B2 SC PoP 12hr 80 30 60 5 60 QPF 12hr 1.30 0.18 1.24 0.01 1.24 Rain shwrs S L L D S S S C S S L L S S L L S Tstms S S S S S S S Obvis H H H H H H Heat index 96105107 98 89 99109112102 90 98109112102 88 Max heat 96 107 105 87 99 112 110 88 98 112 110 Date Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 93 75 92 74 93 74 93 Temp 75 86 93 81 76 86 92 80 75 86 93 80 75 86 93 80 Dewpt 75 76 78 76 75 77 79 77 75 76 78 77 74 76 78 76 PWind dir E E NE E E E E E Wind char LT LT GN LT LT LT LT LT Avg clouds SC FW FW SC FW FW SC B2 SC FW FW B1 SC FW SC SC PoP 12hr 10 30 5 70 10 50 10 50 Rain shwrs S S C C L L S S C C S S C C Tstms S S S S S S $$ VIZ001-022000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sat Aug 2 2025 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 81 92 82 92 Temp 86 89 89 87 84 83 82 82 88 91 92 89 85 84 83 83 88 91 92 89 85 Dewpt 78 78 77 78 78 78 78 77 78 78 77 78 77 77 78 77 77 77 77 77 77 RH 77 70 68 75 82 85 88 85 72 66 62 70 77 80 85 82 70 64 62 68 77 Wind dir SE SE SE SE SE SE SE SE E SE E E E E E E E E E E E Wind spd 19 20 18 17 18 18 18 17 17 18 17 16 18 19 18 18 18 18 16 17 18 Clouds OV OV B2 B2 B2 B1 B2 OV B2 B2 B2 B2 B1 B1 SC SC B1 B1 SC SC SC PoP 12hr 70 70 60 40 40 QPF 12hr 0.65 0.58 0.89 0.21 0.13 Rain shwrs L L C C C C C L C C L C C C C C C C S S C Tstms S S S S S S Obvis H H Heat index 98103102100 95 93 91 90102106106103 96 94 93 92100105106102 96 Max heat 98 103 103 95 102 107 106 96 100 106 106 Date Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 82 92 81 91 82 92 82 92 Temp 83 88 92 85 82 87 91 85 83 88 92 85 83 88 92 85 Dewpt 77 77 77 76 77 77 76 76 76 76 76 76 76 76 76 77 PWind dir E E E E E E E E Wind char BZ GN GN GN BZ BZ BZ BZ Avg clouds SC SC SC SC SC B1 B1 SC SC SC SC SC B1 B1 SC SC PoP 12hr 30 30 40 40 10 40 40 30 Rain shwrs C C S C C C C C S S S C C C C C $$ VIZ002-022000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sat Aug 2 2025 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 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 79 89 79 90 Temp 84 86 87 85 82 81 80 80 85 88 89 86 82 81 80 80 86 89 90 87 83 Dewpt 78 78 77 78 77 77 76 77 78 78 77 77 77 77 76 76 77 77 76 76 76 RH 82 77 72 80 85 88 88 91 80 72 68 75 85 88 88 88 75 68 64 70 80 Wind dir SE SE SE SE SE E E E E E E E E E E E E E E E E Wind spd 16 18 18 16 14 14 14 13 16 17 17 16 14 16 14 16 18 18 14 17 16 Clouds SC SC B1 B1 B2 B2 B1 B2 B1 B1 B2 B2 B1 B1 SC SC B1 B1 SC SC SC PoP 12hr 50 50 60 40 40 QPF 12hr 0.37 0.49 0.82 0.14 0.13 Rain shwrs C C C C C C C C C C L C C C S S C C S S C Tstms S S Obvis H H H H Heat index 95 98 99 97 90 88 86 87 97102102 97 90 88 86 86 97102102 98 91 Max heat 95 100 99 90 97 103 102 90 97 103 100 Date Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 90 79 90 79 90 78 90 Temp 80 86 90 83 80 86 90 83 80 86 90 82 79 85 90 83 Dewpt 75 76 76 75 75 77 76 75 75 76 76 75 76 76 76 76 PWind dir E E E E E E E E Wind char BZ GN GN GN GN GN BZ BZ Avg clouds SC SC SC SC SC B1 B1 SC SC SC SC SC SC SC FW FW PoP 12hr 30 30 40 40 10 30 30 20 Rain shwrs C C S C C C C C S S S C C C S S $$