Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
023 FOCA52 TJSJ 040903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Fri Jul 4 2025 PRZ001-042000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Fri Jul 4 2025 Date Fri 07/04/25 Sat 07/05/25 Sun 07/06/25 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 90 79 90 Temp 85 88 89 87 82 81 79 80 86 89 90 87 83 81 79 80 86 89 90 87 82 Dewpt 75 76 76 76 76 75 74 74 76 76 76 76 75 75 74 74 75 74 74 74 74 RH 72 68 66 70 82 82 85 82 72 66 64 70 77 82 85 82 70 61 60 65 77 Wind dir E E E E E E SE SE E E E E E E E E E E E E E Wind spd 9 13 16 14 10 9 8 4 6 16 18 13 10 10 9 10 11 13 14 12 9 Clouds SC SC B2 B2 SC SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC SC B1 PoP 12hr 50 20 40 30 40 QPF 12hr 0.29 0.05 0.25 0.09 0.05 Rain shwrs C C C C S S S S S C C C C C S S S S S S C Obvis H H H H H H H H H H H Heat index 93 99100 97 90 86 83 85 95100102 97 90 87 84 85 94 98 99 96 88 Max heat 93 100 100 89 95 102 101 89 94 99 98 Heat Y Y Date Mon 07/07/25 Tue 07/08/25 Wed 07/09/25 Thu 07/10/25 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 77 89 78 89 78 90 Temp 78 85 90 81 78 84 89 82 78 85 89 82 78 85 90 83 Dewpt 74 74 73 74 73 74 74 74 74 75 74 75 75 75 75 75 PWind dir E E E E E E E E Wind char GN BZ GN BZ GN BZ GN BZ Avg clouds B1 SC SC FW CL FW SC SC FW FW SC SC FW FW SC FW PoP 12hr 40 20 20 30 20 40 20 20 Rain shwrs C C S S S C C S S C C S S S S Tstms S S $$ PRZ002-042000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Fri Jul 4 2025 Date Fri 07/04/25 Sat 07/05/25 Sun 07/06/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 80 90 80 90 Temp 85 88 89 87 83 82 80 81 86 89 90 88 83 82 80 81 86 89 90 87 83 Dewpt 76 77 77 76 76 75 74 75 76 76 77 76 75 75 74 74 74 74 74 74 74 RH 75 70 68 70 80 79 82 82 72 66 66 68 77 79 82 79 68 61 60 65 74 Wind dir E E E E E E E E E E E E E E E E E E E E NE Wind spd 10 13 13 13 11 10 9 9 13 16 14 13 11 11 12 11 10 12 12 11 9 Clouds SC B1 B2 B2 B1 SC SC SC SC B1 B1 B1 SC SC SC SC B1 B1 SC SC B1 PoP 12hr 50 40 40 40 40 QPF 12hr 0.32 0.17 0.30 0.19 0.11 Rain shwrs C C C C C S S C C C C C C C C C C C S S C Obvis H H H H Heat index 94101101 97 91 88 85 87 96101102 98 91 88 85 87 94 99 99 96 89 Max heat 94 102 101 90 96 102 102 90 94 99 99 Heat Y Y Date Mon 07/07/25 Tue 07/08/25 Wed 07/09/25 Thu 07/10/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 90 78 89 79 89 79 88 Temp 79 86 90 82 78 85 89 82 79 85 89 82 79 84 88 83 Dewpt 74 74 74 74 73 74 75 74 74 75 76 75 75 75 76 75 PWind dir E E E E E E E E Wind char GN GN GN BZ GN GN GN GN Avg clouds B1 B1 SC SC FW SC SC SC FW FW SC SC SC SC SC SC PoP 12hr 40 30 30 30 10 50 20 30 Rain shwrs C C C C S C C C S S C C S S C C Tstms S S $$ PRZ007-042000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Fri Jul 4 2025 Date Fri 07/04/25 Sat 07/05/25 Sun 07/06/25 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 78 91 76 92 Temp 85 89 90 87 82 80 78 79 86 90 91 87 81 78 76 78 86 91 92 88 81 Dewpt 70 71 73 74 74 72 71 71 71 72 73 73 73 73 71 71 70 67 70 68 69 RH 61 56 58 65 77 77 79 77 61 56 56 63 77 85 85 79 59 45 49 52 67 Wind dir E SE SE SE E E NE NE E SE SE SE E E E E E E SE E E Wind spd 5 12 13 14 11 8 8 5 6 14 14 13 10 8 6 6 8 13 18 14 8 Wind gust 24 29 25 Clouds FW FW SC SC FW FW FW SC FW SC SC SC FW FW SC SC CL CL SC SC CL PoP 12hr 30 5 10 5 10 QPF 12hr 0.09 0.01 0.02 0.01 0.01 Rain shwrs 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 H H H Heat index 90 95 98 95 88 83 82 91 97100 95 86 90 94 98 91 84 Max heat 90 98 98 86 91 100 99 84 90 98 97 Heat Y Y Date Mon 07/07/25 Tue 07/08/25 Wed 07/09/25 Thu 07/10/25 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 91 76 90 77 90 76 91 Temp 76 85 91 81 77 84 90 81 78 85 90 81 77 85 91 82 Dewpt 69 69 66 69 70 69 69 68 68 70 71 72 71 72 73 71 PWind dir NE E E E E E E E Wind char LT GN GN GN GN GN LT GN Avg clouds CL CL FW FW CL FW FW FW CL CL CL FW FW FW FW FW PoP 12hr 5 10 10 10 5 10 10 10 Rain shwrs S S S S S S S S S S $$ PRZ008-042000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Fri Jul 4 2025 Date Fri 07/04/25 Sat 07/05/25 Sun 07/06/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 77 88 76 89 Temp 83 86 87 85 81 79 78 79 84 87 88 85 80 78 76 77 84 88 89 86 80 Dewpt 73 74 76 76 75 76 75 74 74 75 76 75 75 76 75 74 74 74 74 74 74 RH 72 68 70 75 82 91 91 85 72 68 68 72 85 94 97 90 72 63 61 68 82 Wind dir E NE NE E E E E E E E E E E E E E E E NE E E Wind spd 5 8 9 11 8 5 9 6 6 9 11 8 5 11 9 11 14 14 14 10 17 Clouds CL FW B2 B2 B2 FW FW CL CL CL B2 B2 CL CL CL CL CL CL SC SC CL PoP 12hr 60 50 60 0 20 QPF 12hr 0.99 0.14 1.00 0 0.02 Rain shwrs S C L C L L S S Tstms S S S S S Obvis H H H H H H H H H H H H H Heat index 88 94 97 93 86 83 91 96 98 94 85 90 96 98 93 84 Max heat 88 97 97 85 91 98 98 83 90 98 97 Heat Y Y Date Mon 07/07/25 Tue 07/08/25 Wed 07/09/25 Thu 07/10/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 88 75 87 75 88 75 88 Temp 76 83 88 80 76 82 87 79 76 83 88 80 76 83 88 80 Dewpt 75 74 74 73 73 73 74 73 73 74 75 75 74 73 76 75 PWind dir E E E E E E E E Wind char BZ BZ BZ GN LT GN LT GN Avg clouds CL CL FW SC CL CL FW SC CL CL FW SC CL CL SC B1 PoP 12hr 0 30 5 30 5 50 5 60 Rain shwrs C C C C C C L L Tstms S S S S $$ PRZ010-042000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Fri Jul 4 2025 Date Fri 07/04/25 Sat 07/05/25 Sun 07/06/25 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 75 93 75 94 Temp 85 91 92 88 81 78 76 78 86 92 93 88 81 78 75 77 86 92 94 89 80 Dewpt 75 77 79 78 77 76 74 73 76 78 79 78 77 76 75 73 75 77 78 76 75 RH 72 64 66 72 88 94 94 85 72 64 64 72 88 94100 87 70 62 60 66 85 Wind dir NE N W E E E E E E S NW S SE E E E E E NE NE E Wind spd 3 3 4 6 4 6 4 5 4 2 3 3 9 6 6 3 4 3 4 3 8 Clouds CL FW B1 B2 B1 FW FW FW CL CL B1 B2 CL CL CL CL CL CL B2 B2 FW PoP 12hr 60 40 50 0 50 QPF 12hr 0.87 0.10 0.27 0 0.50 Rain shwrs C L C C C C C S Tstms S S S S Obvis H H H H H H H H H H H Heat index 93104109101 88 95107110102 88 95107109100 85 Max heat 93 109 108 86 95 110 109 85 95 110 108 Heat Y Y Date Mon 07/07/25 Tue 07/08/25 Wed 07/09/25 Thu 07/10/25 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 73 93 72 92 74 93 73 93 Temp 74 85 93 79 73 84 92 80 75 85 93 80 74 85 93 80 Dewpt 73 75 76 75 72 74 76 75 72 75 78 76 73 75 78 76 PWind dir E E E E E E E E Wind char GN LT LT LT LT LT LT LT Avg clouds FW FW SC B1 CL CL SC B1 FW FW FW FW CL CL SC B1 PoP 12hr 5 60 5 60 5 10 5 60 Rain shwrs S S L L L L S S S S L L Tstms S S S S S S $$ VIZ001-042000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Fri Jul 4 2025 Date Fri 07/04/25 Sat 07/05/25 Sun 07/06/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 80 89 79 91 Temp 85 87 88 86 83 81 80 81 85 88 89 87 82 81 79 81 86 90 91 88 84 Dewpt 77 77 77 77 76 76 77 76 77 76 77 76 77 76 75 75 75 74 76 75 75 RH 77 72 70 75 80 85 91 85 77 68 68 70 85 85 88 82 70 60 62 66 74 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 16 17 18 16 16 16 17 19 20 19 19 18 17 19 16 16 13 18 13 14 14 Clouds SC SC SC SC FW FW SC SC SC B1 FW SC SC SC SC SC SC SC SC SC B1 PoP 12hr 30 30 40 10 40 QPF 12hr 0.04 0.05 0.08 0.02 0.05 Rain shwrs S C S S S S S S C C S S S S S S S C Obvis H H H H H H H H H H H H H H H Heat index 95100101 97 91 88 87 88 96100102 97 90 87 84 86 96100103 98 91 Max heat 95 101 100 90 96 102 101 89 96 103 102 Date Mon 07/07/25 Tue 07/08/25 Wed 07/09/25 Thu 07/10/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 90 79 89 80 89 80 91 Temp 80 86 90 83 79 85 89 83 80 85 89 83 80 87 91 84 Dewpt 74 75 75 75 74 75 76 76 75 76 76 76 75 76 77 77 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds B1 SC FW SC SC SC SC SC SC SC SC FW SC SC SC SC PoP 12hr 40 30 30 20 30 30 20 30 Rain shwrs C C S C C C S S S C C S S S C C $$ VIZ002-042000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Fri Jul 4 2025 Date Fri 07/04/25 Sat 07/05/25 Sun 07/06/25 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 89 77 91 Temp 84 87 88 86 81 80 78 79 85 88 89 86 81 79 77 79 85 90 91 88 82 Dewpt 76 77 77 75 74 75 75 75 76 76 76 75 75 75 74 73 74 74 74 74 74 RH 77 72 70 70 79 85 91 88 75 68 66 70 82 88 90 82 70 60 58 63 77 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 16 18 17 14 13 11 14 16 17 18 18 17 14 14 14 13 16 17 14 14 12 Clouds SC SC SC SC FW CL SC SC SC B1 SC SC CL CL SC SC FW FW SC SC SC PoP 12hr 30 20 40 10 20 QPF 12hr 0.04 0.04 0.07 0.01 0.02 Rain shwrs S C S S S S S S C S S S S S S S S S Obvis H H H H H H H H H H H H H H H H Heat index 93 99100 94 87 84 84 93 99100 95 87 83 93 99100 96 87 Max heat 93 100 98 86 93 100 99 85 93 100 100 Date Mon 07/07/25 Tue 07/08/25 Wed 07/09/25 Thu 07/10/25 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 90 78 90 78 90 79 91 Temp 78 85 90 82 78 85 90 82 78 85 90 83 79 86 91 84 Dewpt 73 74 74 74 73 74 74 74 74 75 75 75 75 75 75 75 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ GN BZ BZ BZ Avg clouds SC SC FW FW FW SC SC SC FW FW FW FW FW FW SC SC PoP 12hr 20 10 50 50 5 10 20 30 Rain shwrs S S S S S C C C S S S S S S C C $$