Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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149 FOCA52 TJSJ 192120 PFMSJU Point Forecast Matrices National Weather Service San Juan PR Issued by National Weather Service Miami FL 520 PM AST Sat Jul 19 2025 PRZ001-200815- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 520 PM AST Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 91 78 91 79 Temp 82 80 78 80 86 90 91 88 82 80 79 80 86 90 91 88 83 81 79 81 86 Dewpt 75 75 74 74 75 74 74 75 74 75 73 73 74 73 74 74 74 74 75 75 76 RH 79 85 88 82 70 60 58 66 77 85 82 79 68 58 58 63 74 79 88 82 72 Wind dir E E SE SE E E E E E E E E E E E E E E E E E Wind spd 9 9 6 8 9 11 14 14 9 10 9 9 11 14 16 12 9 10 9 9 11 Clouds SC SC B1 SC SC SC B2 SC SC SC FW SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 40 50 40 40 20 QPF 12hr 0.18 0.21 0.09 0.13 0.05 Rain shwrs S S C C C C C S S C S S S C C C S S S S S Tstms S Heat index 88 85 84 94100101 97 89 85 84 94 99100 96 90 86 84 86 96 Max heat 96 87 94 101 100 87 94 100 100 88 96 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 79 91 79 91 78 90 78 90 Temp 91 83 79 86 91 83 79 86 91 82 79 85 90 82 78 85 90 82 Dewpt 76 75 75 76 76 76 76 76 77 76 75 76 76 75 75 75 75 75 PWind dir E E E E E E E E E Wind char GN GN GN GN BZ GN GN GN GN Avg clouds SC B1 SC SC SC B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 PoP 12hr 40 30 40 40 60 60 60 50 40 Rain shwrs C C C C C C C C C L L L L L C C C C Tstms S S S S S S S S S S $$ PRZ002-200815- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 520 PM AST Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 89 79 88 79 Temp 81 80 78 79 85 88 89 87 82 81 79 80 84 87 88 86 82 81 79 80 85 Dewpt 75 75 75 75 75 76 76 75 75 75 74 73 74 74 74 74 74 75 75 76 76 RH 82 85 91 88 72 68 66 68 79 82 85 79 72 65 63 68 77 82 88 88 75 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 10 10 10 10 12 11 12 12 11 12 11 10 10 11 12 12 9 10 11 11 14 Clouds B1 B1 B2 B1 SC SC B2 B2 SC SC SC SC SC SC B2 B2 B1 B1 B1 B1 B1 PoP 12hr 50 50 40 50 40 QPF 12hr 0.25 0.62 0.13 0.17 0.11 Rain shwrs C C C C C C C C C C C S C C C C C C C C C Tstms S S S S Heat index 88 84 84 93 99100 96 89 86 83 84 92 96 96 94 88 86 84 86 95 Max heat 95 86 93 100 99 88 92 97 96 87 95 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 81 89 81 89 79 89 80 89 Temp 89 84 81 86 89 84 81 86 89 82 79 85 89 83 80 85 89 83 Dewpt 77 76 76 76 77 77 76 76 77 76 76 76 76 76 75 75 76 76 PWind dir E E E E E E E E E Wind char GN GN GN GN BZ BZ GN GN GN Avg clouds B1 SC SC SC SC B1 B1 B1 SC B1 B2 B2 B2 B2 B2 B1 B1 B1 PoP 12hr 40 30 40 40 60 60 60 50 40 Rain shwrs C C C C C C C C C L L L L L C C C C Tstms S S S S S S S $$ PRZ007-200815- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 520 PM AST Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 90 76 91 77 Temp 81 79 78 79 85 89 90 87 81 78 77 78 85 90 91 88 82 79 78 79 85 Dewpt 72 71 71 71 72 71 72 72 73 71 70 70 70 67 73 69 70 69 70 71 72 RH 74 77 79 77 65 56 56 61 77 79 79 76 61 47 56 54 67 72 76 77 65 Wind dir E NE NE NE E SE SE SE E NE NE NE E E SE E E NE NE E E Wind spd 6 4 5 6 6 12 12 13 10 6 8 4 6 11 14 11 8 5 4 5 9 Clouds FW CL CL CL SC CL FW SC CL CL CL CL CL CL SC SC CL CL CL CL CL PoP 12hr 5 20 5 20 0 QPF 12hr 0.01 0.04 0 0.04 0 Rain shwrs S S S S S Heat index 86 82 91 95 97 93 85 89 93100 92 86 82 91 Max heat 93 85 91 97 97 84 89 100 98 84 91 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 78 92 77 92 77 91 77 91 Temp 91 82 79 86 92 82 78 86 92 82 78 85 91 82 78 85 91 82 Dewpt 72 72 71 70 72 72 72 71 70 71 70 72 72 70 72 72 69 71 PWind dir E E E E E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW FW FW FW FW SC FW FW FW SC CL FW FW SC FW FW SC SC PoP 12hr 5 5 10 5 30 0 30 10 20 Rain shwrs S S S S C C C C S S S $$ PRZ008-200815- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 520 PM AST Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 87 75 88 77 Temp 80 78 76 77 83 86 87 84 79 77 75 77 83 87 88 85 81 79 77 78 84 Dewpt 74 75 74 73 74 74 75 75 75 75 74 73 73 73 74 73 74 74 75 75 74 RH 82 91 94 87 74 68 68 74 88 94 97 87 72 63 63 67 79 85 94 91 72 Wind dir E E E E E E E E E E E E E E NE E E E E E E Wind spd 9 9 6 10 5 8 14 12 12 8 11 10 10 11 13 16 13 8 11 10 11 Clouds SC CL SC SC CL CL B2 B2 SC CL CL CL CL CL B1 B1 CL CL CL CL CL PoP 12hr 30 60 30 40 0 QPF 12hr 0.10 0.56 0.03 0.14 0 Rain shwrs C S S L L C C C Tstms S S Heat index 84 89 94 97 92 83 88 94 97 92 86 91 Max heat 91 83 89 97 96 88 97 96 85 91 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 78 88 77 88 77 88 76 88 Temp 88 81 78 84 88 81 77 84 88 81 77 84 88 80 76 83 88 80 Dewpt 76 75 76 75 76 76 76 75 76 75 76 75 75 75 75 74 75 75 PWind dir E E E E E E E E E Wind char GN BZ BZ BZ BZ BZ BZ GN BZ Avg clouds SC B1 FW FW FW SC FW SC SC SC SC SC SC B1 SC SC FW FW PoP 12hr 60 0 20 5 20 20 60 10 10 Rain shwrs L L S S S S S S S S L L S S S S Tstms S S S S $$ PRZ010-200815- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 520 PM AST Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 91 74 92 75 Temp 79 77 75 76 84 90 91 87 80 77 75 76 85 91 92 88 81 78 76 77 86 Dewpt 75 75 73 72 75 77 79 77 76 75 73 72 74 76 77 76 74 73 72 72 75 RH 88 94 94 87 74 66 68 72 88 94 94 87 70 62 62 68 79 85 87 85 70 Wind dir E E E E E S NW NE E E E E E NE NE E E E E E E Wind spd 3 4 4 4 4 3 4 4 1 6 4 4 4 5 5 6 5 4 4 4 3 Clouds SC CL CL CL CL CL B2 B2 SC CL CL CL CL CL B2 B2 CL CL CL CL CL PoP 12hr 10 60 20 60 0 QPF 12hr 0.01 0.58 0.02 0.73 0 Rain shwrs S C L S L L Tstms S S S S Heat index 84 92103107 98 85 93103106 99 86 95 Max heat 97 92 107 105 93 106 105 84 95 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 93 76 93 75 93 75 92 74 92 Temp 93 82 77 86 93 81 76 86 93 81 76 85 92 80 75 85 92 80 Dewpt 79 77 74 76 79 77 74 76 79 77 74 76 79 76 74 75 78 76 PWind dir E E E E E E E E E Wind char LT LT LT LT GN GN GN LT LT Avg clouds SC B1 CL CL SC SC CL CL SC B1 CL CL SC B1 CL CL SC SC PoP 12hr 60 0 50 0 70 0 70 0 50 Rain shwrs L L C C L L L L C C Tstms S S S S S S S S S S $$ VIZ001-200815- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 520 PM AST Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 91 81 91 80 Temp 83 82 80 81 87 90 91 89 84 83 81 82 87 90 91 88 84 82 80 81 87 Dewpt 76 76 76 76 76 76 76 75 75 75 75 75 74 74 75 75 76 76 77 77 77 RH 80 82 88 85 70 64 62 64 74 77 82 79 65 60 60 66 77 82 91 88 72 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 14 14 16 16 16 17 16 16 17 18 16 19 18 14 13 14 16 18 18 18 20 Clouds FW SC B2 B1 SC B1 SC FW SC SC SC CL FW CL SC SC SC SC SC SC SC PoP 12hr 50 40 30 30 30 QPF 12hr 0.18 0.15 0.09 0.07 0.10 Rain shwrs S C C S C C S C C C S S S C C C C C Heat index 91 89 86 88 97102103 99 93 90 87 89 96100102 98 92 89 87 89 98 Max heat 98 91 97 103 102 92 96 102 101 91 98 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 81 91 80 91 79 91 80 91 Temp 91 84 81 87 91 84 80 87 91 83 79 86 91 84 80 87 91 84 Dewpt 77 77 77 78 78 77 78 78 78 77 77 77 77 77 76 77 77 76 PWind dir E E E E E E E E E Wind char BZ BZ BZ BZ BZ WY BZ BZ BZ Avg clouds B1 SC FW FW FW SC SC SC FW B1 B2 B2 B1 SC SC SC SC SC PoP 12hr 40 5 30 20 60 60 40 10 10 Rain shwrs C C C C S S C L L L C C S S S S Tstms S S S S S S S S $$ VIZ002-200815- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 520 PM AST Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 89 78 89 80 Temp 82 80 78 79 85 88 89 86 82 80 78 79 85 88 89 87 83 82 80 81 86 Dewpt 75 76 75 75 75 75 75 74 74 75 74 74 74 74 74 75 74 76 76 76 76 RH 79 88 91 88 72 66 64 68 77 85 88 85 70 63 61 68 74 82 88 85 72 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 12 12 12 13 14 16 16 14 14 17 16 14 14 14 14 13 13 16 16 16 18 Clouds CL SC B1 SC SC B1 SC CL SC SC SC CL FW CL SC SC SC SC SC SC SC PoP 12hr 40 40 30 30 30 QPF 12hr 0.14 0.11 0.08 0.07 0.10 Rain shwrs S C C S C S C S C S S S C C C C C Tstms Heat index 88 85 84 93 97 99 94 87 84 83 92 96 98 96 90 88 86 88 96 Max heat 95 87 93 99 98 86 92 98 98 89 96 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 79 90 80 89 79 89 79 90 Temp 90 83 79 86 90 83 80 85 89 82 79 85 89 82 79 86 90 83 Dewpt 76 75 76 76 77 76 76 77 77 76 76 76 76 75 75 76 76 75 PWind dir E E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC SC SC SC B1 B2 B2 B1 SC SC SC SC SC PoP 12hr 30 10 30 20 60 60 40 20 20 Rain shwrs C S S S C C S S C L L L C C S S S S Tstms S S S S S $$