Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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188 FOCA52 TJSJ 260903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sat Jul 26 2025 PRZ001-262000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sat Jul 26 2025 Date Sat 07/26/25 Sun 07/27/25 Mon 07/28/25 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 78 89 79 89 Temp 86 90 91 88 82 80 79 79 85 88 89 87 82 81 79 80 85 88 89 86 82 Dewpt 74 74 74 75 76 76 75 75 76 77 76 77 76 76 76 75 76 77 77 77 76 RH 68 60 58 66 82 88 88 88 75 70 66 72 82 85 91 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 Wind spd 10 14 14 13 10 11 11 11 12 13 12 8 5 5 3 4 5 10 14 12 9 Clouds FW SC FW SC SC B2 B2 B2 OV OV OV OV B2 B2 B2 B2 SC SC B2 B2 B1 PoP 12hr 10 80 80 60 60 QPF 12hr 0.03 0.51 1.65 0.52 0.67 Rain shwrs S S S S L L L D D D D C C L L C C L L C Tstms S S S S S S S S S S S S S Heat index 94 99101 98 89 86 94100100 99 89 87 85 94100102 97 89 Max heat 94 101 101 89 94 102 100 89 94 102 102 Date Tue 07/29/25 Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 78 91 78 91 78 90 Temp 78 86 91 82 79 86 91 82 79 86 91 82 79 85 90 83 Dewpt 76 77 76 75 74 75 74 74 74 74 75 74 74 75 76 76 PWind dir SE E E E E E E E Wind char LT GN GN GN GN GN GN BZ Avg clouds B1 SC SC SC SC SC FW SC SC SC SC SC SC SC SC SC PoP 12hr 40 30 20 30 30 30 30 50 Rain shwrs C C C C S S S C C C C C C C C C Tstms S S $$ PRZ002-262000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sat Jul 26 2025 Date Sat 07/26/25 Sun 07/27/25 Mon 07/28/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 79 89 80 89 Temp 85 88 89 87 82 81 79 80 85 88 89 87 83 82 80 81 85 88 89 87 83 Dewpt 74 75 75 76 76 76 76 76 77 77 76 77 77 76 76 76 77 77 78 78 77 RH 70 66 64 70 82 85 91 88 77 70 66 72 82 82 88 85 77 70 70 75 82 Wind dir E E E NE NE E E E E SE SE E E E E E E E E E E Wind spd 13 14 13 13 12 11 12 13 14 16 5 8 6 2 5 6 8 9 11 11 11 Clouds SC SC SC SC B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B1 B1 B2 B2 B2 PoP 12hr 50 70 80 60 60 QPF 12hr 0.12 0.63 1.67 0.57 0.72 Rain shwrs S S S S C L L L L D D D L L L L C C L L C Tstms S S S S S S S S S S S S S S S Heat index 93 98 99 98 89 87 86 96100100 99 92 89 86 87 96100103100 92 Max heat 93 99 99 89 96 102 100 92 96 103 103 Date Tue 07/29/25 Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 89 80 89 80 89 80 88 Temp 80 85 89 83 80 85 89 83 80 85 89 83 81 85 88 83 Dewpt 77 77 77 75 75 75 76 75 74 75 76 75 75 76 77 77 PWind dir SE E E E E E E E Wind char GN GN GN GN GN GN GN BZ Avg clouds B1 B1 SC SC SC SC FW SC SC SC SC SC SC SC SC SC PoP 12hr 50 30 30 40 40 40 40 50 Rain shwrs C C C C C C S C C C C C C C C C Tstms S S S $$ PRZ007-262000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sat Jul 26 2025 Date Sat 07/26/25 Sun 07/27/25 Mon 07/28/25 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 77 90 77 90 Temp 85 91 92 88 82 80 78 79 85 89 90 87 81 79 78 79 85 89 90 87 81 Dewpt 69 68 70 69 70 70 70 71 71 71 74 73 71 71 70 70 71 71 74 74 74 RH 59 47 49 54 67 72 76 77 63 56 60 63 72 77 76 74 63 56 60 65 79 Wind dir E E SE E NE NE NE NE E E SE E E E E NE E E SE E E Wind spd 8 16 19 14 8 6 5 5 8 14 11 8 4 2 3 4 3 13 16 12 9 Wind gust 26 33 25 26 26 Clouds CL CL SC SC SC CL SC FW B2 OV OV OV B1 B1 SC SC SC SC B2 B2 SC PoP 12hr 40 60 80 40 50 QPF 12hr 0.11 0.19 1.48 0.18 0.43 Rain shwrs S C S C L D L L C C S S S S C C S Tstms S S S S S S Heat index 89 95 98 92 86 83 90 95 99 94 85 90 95 99 95 86 Max heat 89 98 97 85 90 99 98 85 90 99 98 Date Tue 07/29/25 Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 91 75 91 76 91 76 90 Temp 78 85 91 80 76 85 91 81 77 85 91 81 77 85 90 81 Dewpt 74 74 74 72 70 68 72 70 68 69 71 72 71 71 73 72 PWind dir E E E E E E E E Wind char GN GN LT GN LT GN GN GN Avg clouds SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 20 50 5 5 5 5 5 20 Rain shwrs S S C C S S S S S S S S S S Tstms S S $$ PRZ008-262000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sat Jul 26 2025 Date Sat 07/26/25 Sun 07/27/25 Mon 07/28/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 77 88 77 88 Temp 83 87 88 85 81 79 77 78 84 87 88 85 81 79 77 78 84 87 88 85 80 Dewpt 73 73 74 74 74 76 76 76 75 76 76 75 75 76 76 76 75 76 77 76 76 RH 72 63 63 70 79 91 97 94 74 70 68 72 82 91 97 94 74 70 70 75 88 Wind dir E E NE NE E E E E E E E E E E E E E E NE E E Wind spd 16 17 19 16 19 17 17 16 17 17 14 9 10 9 8 6 9 12 14 12 11 Clouds CL CL FW SC CL CL B1 B1 SC B1 OV OV B2 B2 SC SC SC SC B2 B2 B2 PoP 12hr 10 40 70 50 60 QPF 12hr 0 0.21 1.18 0.22 0.63 Rain shwrs S C C S C L L C C S S S S L L L Tstms S S S S S S S Heat index 89 94 97 93 86 92 98 99 94 87 92 98100 94 86 Max heat 89 97 97 85 92 99 99 85 92 100 100 Date Tue 07/29/25 Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 88 75 88 76 88 76 87 Temp 76 83 88 79 76 83 88 80 76 83 88 80 77 83 87 80 Dewpt 76 75 77 76 75 73 75 74 74 73 75 74 75 74 76 75 PWind dir E E E E E E E E Wind char LT GN GN BZ BZ GN GN BZ Avg clouds B1 SC SC SC FW FW FW FW FW FW FW SC CL FW FW SC PoP 12hr 60 50 5 10 5 20 5 20 Rain shwrs L S C C S S S S S S S S Tstms S S S $$ PRZ010-262000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sat Jul 26 2025 Date Sat 07/26/25 Sun 07/27/25 Mon 07/28/25 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 91 75 91 Temp 84 90 92 88 80 77 75 76 84 90 91 87 80 78 76 77 85 90 91 87 80 Dewpt 74 75 77 76 76 75 75 74 76 79 79 78 77 76 76 75 76 79 80 79 78 RH 72 62 62 68 88 94100 94 77 70 68 75 91 94100 94 75 70 70 77 94 Wind dir E E S NE NE NE NE NE E NE E E E E E E E E NE E E Wind spd 5 2 4 2 13 11 11 9 8 4 4 3 4 3 3 3 3 2 6 1 1 Clouds CL CL B2 B2 B1 CL SC CL SC SC B2 B2 B1 B1 SC SC SC SC OV OV B2 PoP 12hr 50 40 60 40 70 QPF 12hr 0.84 0.13 1.01 0.16 1.25 Rain shwrs C C C S S C L L C C S S S S L L C Tstms S S S S S S S Heat index 91101106 99 86 93106108100 87 94106109101 87 Max heat 91 106 105 93 108 106 94 109 108 Date Tue 07/29/25 Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 75 92 73 92 73 92 74 91 Temp 76 85 92 79 74 84 92 79 74 84 92 80 75 85 91 80 Dewpt 75 77 80 77 74 75 78 76 74 74 78 76 73 75 79 77 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds B1 FW FW SC FW FW FW SC CL CL SC SC CL CL SC B1 PoP 12hr 50 50 5 40 5 50 5 60 Rain shwrs C S C C C C C C L L Tstms S S S S S S S S S $$ VIZ001-262000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sat Jul 26 2025 Date Sat 07/26/25 Sun 07/27/25 Mon 07/28/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 81 91 81 91 Temp 87 90 91 89 84 83 81 82 87 90 91 89 84 83 81 82 87 90 91 89 84 Dewpt 75 75 76 77 77 78 77 77 78 77 78 77 77 78 78 77 78 78 78 78 78 RH 68 62 62 68 80 85 88 85 75 66 66 68 80 85 91 85 75 68 66 70 82 Wind dir E E E E E E E E E E SE E E E E E E E E E E Wind spd 19 18 17 16 18 18 20 19 19 19 14 4 4 13 14 12 11 12 13 14 18 Clouds SC SC SC SC B2 B2 B1 B2 B2 OV OV OV SC SC B1 B1 B1 B1 B2 B2 B1 PoP 12hr 50 60 70 40 60 QPF 12hr 0.11 0.50 1.40 0.37 0.70 Rain shwrs S S S S C C C C L L L L C C C C C C L L C Tstms S S S S S S S S S S Heat index 96101103102 94 93 88 90100103106102 94 93 89 90100105106103 95 Max heat 96 103 103 94 100 106 106 94 100 106 106 Date Tue 07/29/25 Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 91 81 91 81 91 81 90 Temp 81 87 91 84 81 87 91 84 81 87 91 84 82 87 90 84 Dewpt 78 78 77 75 75 75 76 76 75 76 76 76 76 77 77 78 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds B1 SC SC FW FW FW FW FW FW FW FW SC SC SC SC SC PoP 12hr 40 20 10 10 10 30 30 40 Rain shwrs C C S S S S S S S S S C C C S C $$ VIZ002-262000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sat Jul 26 2025 Date Sat 07/26/25 Sun 07/27/25 Mon 07/28/25 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 88 78 88 Temp 85 88 89 86 82 80 78 79 84 87 88 86 81 80 78 79 84 87 88 86 82 Dewpt 74 75 76 76 76 76 76 76 77 77 77 76 76 77 76 76 77 77 77 77 76 RH 70 66 66 72 82 88 94 91 80 72 70 72 85 91 94 91 80 72 70 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 Wind spd 19 17 16 17 16 16 17 18 17 13 11 6 6 11 12 10 10 11 13 13 14 Clouds SC SC SC SC B1 B1 B1 OV B2 OV OV OV B2 B2 B1 B1 B2 B2 B2 B2 B1 PoP 12hr 40 70 70 60 50 QPF 12hr 0.16 0.54 1.45 0.48 0.63 Rain shwrs S S S C C C C L L L L L L L C C C C C C C Tstms S S S S S S S S S S S S Heat index 93 98100 96 89 86 94 99100 96 87 87 94 99100 97 89 Max heat 93 100 100 87 94 100 100 87 94 100 100 Date Tue 07/29/25 Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 89 78 89 78 89 79 88 Temp 79 85 89 82 78 85 89 82 78 85 89 82 80 85 88 81 Dewpt 77 77 76 74 75 75 75 74 74 75 75 74 75 76 77 76 PWind dir E E E E E E E E Wind char BZ BZ BZ GN BZ BZ BZ BZ Avg clouds B1 SC FW FW FW FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 40 20 10 10 20 30 30 40 Rain shwrs C C S S S S S S S S S C C C S C $$