Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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037 FOCA52 TJSJ 230903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sat Aug 23 2025 PRZ001-232000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 91 80 91 Temp 85 89 90 87 83 81 80 80 86 90 91 88 84 82 81 81 87 90 91 87 83 Dewpt 76 77 77 76 76 76 76 76 77 78 77 76 77 76 76 75 75 76 76 76 76 RH 75 68 66 70 80 85 88 88 75 68 64 68 80 82 85 82 68 64 62 70 80 Wind dir SE E E SE E SE SE SE E E E E E E E E E E E E E Wind spd 4 8 9 8 6 6 5 6 9 12 16 14 12 10 11 11 13 14 17 16 13 Clouds OV B2 OV OV B2 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 70 50 30 20 20 QPF 12hr 0.85 0.17 0.07 0.03 0.05 Rain shwrs L L L L C S S S S C C S S S S S S S S S Tstms S S S S S Obvis H H H H H H H H H H H Heat index 95102103 97 90 88 85 86 98104105 99 93 90 87 87 96102103 98 91 Max heat 95 103 102 89 98 105 104 92 96 103 102 Heat Y Y Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 78 91 77 92 78 92 Temp 80 86 91 82 79 86 91 82 78 86 92 83 79 87 92 83 Dewpt 75 75 76 76 75 75 75 75 75 75 76 76 76 76 76 76 PWind dir E E E E SE SE SE E Wind char GN GN LT GN LT GN LT GN Avg clouds SC SC B1 SC CL CL FW FW CL FW B1 B1 SC SC SC SC PoP 12hr 30 40 0 0 20 60 10 10 Rain shwrs S C C C S L L S S S S Tstms S S $$ PRZ002-232000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 81 91 82 90 Temp 85 87 88 86 83 82 81 82 87 90 91 88 85 84 83 83 87 90 90 87 84 Dewpt 77 78 78 78 77 78 78 78 79 78 78 78 77 77 77 76 77 77 78 78 77 RH 77 75 72 77 82 88 91 88 77 68 66 72 77 80 82 80 72 66 68 75 80 Wind dir SE SE S SE SE E E E E E E E E E E E E E E E E Wind spd 6 5 6 5 5 9 10 9 11 13 13 16 13 12 12 12 14 14 16 16 16 Clouds OV B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 70 50 30 20 20 QPF 12hr 0.67 0.17 0.06 0.05 0.05 Rain shwrs L C L L C C C S S C C S S S S S S S S S Tstms S S S S S Obvis H H H H H H H H H H H Heat index 95101101 98 92 92 90 91101106106102 96 93 91 91 98102104100 94 Max heat 95 101 101 92 101 106 106 95 98 104 104 Heat Y Y Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 89 80 90 80 90 80 90 Temp 82 86 89 83 81 86 90 83 81 86 90 83 81 86 90 83 Dewpt 77 77 77 76 76 77 77 76 77 77 77 77 77 77 78 77 PWind dir E E E E SE SE SE E Wind char BZ GN GN GN GN GN GN GN Avg clouds SC SC B1 SC CL CL FW FW CL FW B1 SC SC SC SC SC PoP 12hr 30 40 0 0 40 40 20 20 Rain shwrs S C C C C C C S S S S Tstms S S $$ PRZ007-232000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 78 92 77 92 Temp 84 87 88 85 81 80 79 79 87 91 92 87 82 80 78 79 86 91 92 88 83 Dewpt 73 74 75 74 75 74 74 74 73 73 73 75 75 72 71 71 71 70 70 71 71 RH 70 65 66 70 82 82 85 85 63 56 54 68 79 77 79 77 61 50 49 57 67 Wind dir E SE SE SE E NE NE NE E SE SE E E NE NE NE NE E E E NE Wind spd 3 10 9 5 6 5 5 4 4 12 17 12 10 6 5 5 6 16 16 13 8 Wind gust 27 27 26 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 20 10 20 20 QPF 12hr 0.11 0.03 0.02 0.03 0.02 Rain shwrs S S S C S S S S S S S S Obvis H H H H H H H H H H H H H Heat index 90 96 98 93 87 84 83 94 99101 97 88 84 91 97 98 94 87 Max heat 90 98 97 86 94 101 101 86 91 98 97 Heat Y Y Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 90 76 89 77 88 77 89 Temp 79 85 90 81 77 84 89 81 78 84 88 81 78 84 89 81 Dewpt 71 71 72 72 72 72 73 73 73 73 73 74 73 74 74 75 PWind dir NE E E E E SE E E Wind char LT GN LT GN LT GN LT GN Avg clouds SC FW FW SC FW FW FW SC CL FW SC FW SC SC SC FW PoP 12hr 0 30 0 20 20 20 20 10 Rain shwrs C C S S S S S S S S S $$ PRZ008-232000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 77 88 77 88 Temp 80 83 83 81 79 78 77 78 84 87 88 85 81 79 78 78 84 87 88 85 81 Dewpt 76 77 76 75 76 76 76 73 76 77 79 76 77 76 76 75 76 76 76 75 76 RH 88 82 80 82 91 94 97 85 77 72 75 75 88 91 94 91 77 70 68 72 85 Wind dir E E E E E SE E E E E NE E E E E E E E E E E Wind spd 11 11 5 3 6 5 4 4 6 9 17 17 21 13 12 11 11 18 24 23 20 Clouds SC B1 OV OV B1 SC SC SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 80 40 40 10 10 QPF 12hr 1.36 0.10 0.16 0.01 0.02 Rain shwrs S C D L C C C S S S S Tstms S S Obvis H H H H H H H H H H H Heat index 86 91 91 87 92100102 94 87 83 92 98 99 93 88 Max heat 86 91 90 92 102 101 86 92 99 98 Heat Y Y Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 88 76 88 76 88 76 88 Temp 79 84 88 80 77 83 88 80 77 83 88 80 77 83 88 81 Dewpt 76 75 77 76 75 75 76 76 75 75 76 76 76 75 77 76 PWind dir E E E E E NE E NE Wind char BZ BZ GN GN LT LT LT LT Avg clouds SC SC SC SC SC SC SC B1 SC SC B1 B1 CL FW SC B1 PoP 12hr 5 20 20 60 20 60 5 60 Rain shwrs C C S S L L S S L L L L Tstms S S S S S S $$ PRZ010-232000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 76 92 75 92 Temp 84 88 89 85 80 78 77 78 86 91 92 87 81 78 76 77 86 91 92 87 81 Dewpt 77 79 78 78 77 77 75 75 76 78 79 78 78 77 75 74 76 77 78 77 77 RH 80 75 70 80 91 97 94 91 72 66 66 75 91 97 97 90 72 64 64 72 88 Wind dir E S N E NE E E NE NE SW S E E E E E E E E E NE Wind spd 5 2 4 3 4 4 5 4 4 2 4 3 6 4 4 4 4 3 3 12 14 Clouds SC B1 OV B2 B1 SC SC SC SC SC OV OV SC SC SC SC SC SC B1 B1 SC PoP 12hr 80 40 70 20 40 QPF 12hr 0.97 0.09 0.75 0.03 0.08 Rain shwrs C D C C L L S S C C Tstms S S S S Obvis H H H H H H H H H Heat index 94103103 97 87 96106109100 88 95105108 99 89 Max heat 94 103 102 85 96 109 107 85 95 108 106 Heat Y Y Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 92 74 92 75 92 75 92 Temp 77 86 92 80 75 85 92 81 76 86 92 81 76 86 92 81 Dewpt 75 76 78 77 74 75 78 77 75 76 78 77 76 77 78 77 PWind dir E E E E E SE E E Wind char GN LT LT LT LT LT LT LT Avg clouds SC FW FW B1 SC FW SC B1 SC SC SC SC CL CL SC B1 PoP 12hr 0 40 10 60 20 20 0 60 Rain shwrs C C S S L L S S S S L L Tstms S S S S S S $$ VIZ001-232000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 82 92 82 92 Temp 86 89 89 87 84 83 82 83 88 91 92 89 85 84 83 83 88 91 92 89 85 Dewpt 78 78 78 78 77 78 79 78 79 78 78 78 77 77 77 76 77 77 77 78 77 RH 77 70 70 75 80 85 91 85 75 66 64 70 77 80 82 80 70 64 62 70 77 Wind dir SE SE SE SE E E E E E E E E E E E E E E E E E Wind spd 10 9 8 8 10 13 14 13 14 17 16 20 20 19 19 20 21 20 19 20 21 Clouds B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 40 20 0 10 QPF 12hr 0.46 0.08 0.04 0 0.02 Rain shwrs L C C C C C S S S S S S Tstms S S S S Obvis H H H H H H H H H H H H H Heat index 99102103100 94 94 92 93103107107103 96 94 91 91100105106102 96 Max heat 99 103 103 94 103 108 107 95 100 106 105 Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 82 91 81 91 81 91 81 91 Temp 83 88 91 84 82 87 91 84 82 87 91 84 82 87 91 85 Dewpt 77 77 77 76 76 77 76 77 77 77 77 77 77 77 77 77 PWind dir E E E E SE SE SE E Wind char BZ BZ BZ GN GN GN GN GN Avg clouds SC SC SC SC CL FW FW FW SC SC SC SC SC SC SC FW PoP 12hr 20 40 10 10 30 30 20 20 Rain shwrs S S C C S S S S C C S S S S Tstms S S $$ VIZ002-232000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 79 91 80 90 Temp 84 87 88 85 82 81 80 80 86 90 91 88 84 82 81 81 86 89 90 87 83 Dewpt 78 77 77 77 77 78 78 77 77 78 78 77 76 77 76 76 77 77 76 77 77 RH 82 72 70 77 85 91 94 91 75 68 66 70 77 85 85 85 75 68 64 72 82 Wind dir SE SE SE E E E E E E E E E E E E E E E E E E Wind spd 8 10 9 8 9 11 12 12 14 16 18 18 18 18 18 18 21 20 20 20 19 Clouds B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 40 10 10 10 QPF 12hr 0.46 0.12 0.02 0.01 0.02 Rain shwrs L C C C C C S S S S S S Tstms S S S S Obvis H H H H H H H H H H H H H Heat index 95 99100 96 90 89 85 87 98104105 99 92 90 87 87 97102102 98 91 Max heat 95 100 99 89 98 105 104 91 97 102 102 Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 78 90 78 90 79 90 Temp 80 86 90 82 79 85 90 82 79 85 90 83 80 86 90 83 Dewpt 76 76 76 76 76 76 76 75 76 77 77 76 76 77 76 77 PWind dir E E E SE E SE E E Wind char BZ BZ GN GN GN GN GN GN Avg clouds SC SC B1 SC CL FW FW FW SC SC SC SC SC SC FW SC PoP 12hr 30 40 10 10 20 30 30 20 Rain shwrs S C C C S S S S S S C C C S S $$