Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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820 FOCA52 TJSJ 082103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Fri Aug 8 2025 PRZ001-090800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon 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 92 78 92 78 Temp 83 81 79 79 87 91 92 88 83 81 79 79 87 91 92 88 83 81 79 79 86 Dewpt 75 75 75 74 74 75 75 75 74 75 74 74 74 75 75 75 75 75 74 74 75 RH 77 82 88 85 65 60 58 66 74 82 85 85 65 60 58 66 77 82 85 85 70 Wind dir E E E SE E E E E E SE SE SE E E E E E E E E E Wind spd 9 9 8 6 5 10 16 13 9 6 6 5 5 10 14 13 10 9 5 5 8 Clouds SC SC B1 B1 SC B1 B1 B1 SC B1 B2 SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 50 50 30 30 QPF 12hr 0.14 0.47 0.13 0.30 0.10 Rain shwrs S C C C C C C C C C C S S S C C S S S S C Heat index 90 86 83 95102103 97 89 86 83 95102103 97 90 86 83 95 Max heat 97 88 95 103 102 88 95 103 102 88 95 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 79 92 79 92 78 92 Temp 91 82 79 87 92 83 80 87 92 83 80 87 92 83 79 87 92 83 Dewpt 75 75 75 77 77 77 76 76 75 76 75 76 75 76 76 76 76 76 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC FW CL SC B2 SC SC FW FW SC SC SC SC SC SC SC SC SC PoP 12hr 30 60 60 10 10 10 30 30 30 Rain shwrs C S L L C S S S S S S C C S C C S Tstms S S $$ PRZ002-090800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 90 79 90 80 Temp 83 82 81 81 86 89 90 87 83 81 80 80 86 89 90 87 83 82 81 81 86 Dewpt 75 75 75 74 75 76 75 76 75 75 74 74 76 76 75 76 75 75 75 74 75 RH 77 79 82 79 70 66 62 70 77 82 82 82 72 66 62 70 77 79 82 79 70 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 9 9 9 8 8 9 9 10 9 9 8 6 8 9 10 12 10 10 6 6 10 Clouds SC B2 B2 B2 B1 B1 B2 B2 SC B1 B2 SC SC SC SC SC SC SC SC SC B2 PoP 12hr 50 50 50 30 50 QPF 12hr 0.27 0.58 0.15 0.37 0.14 Rain shwrs S C C C C C C C C C C S C C C C S S C C C Heat index 91 88 86 86 95101101 97 90 87 84 85 96101101 97 91 88 86 86 95 Max heat 96 90 95 101 100 89 96 101 100 90 95 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 80 90 81 90 80 90 81 90 Temp 90 83 81 86 90 84 82 87 90 83 81 86 90 84 82 87 90 83 Dewpt 75 76 76 77 77 77 76 77 77 76 75 76 77 76 76 77 77 76 PWind dir E E E E NE E E E NE Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 FW FW SC B2 SC SC FW FW FW CL FW SC SC SC SC SC SC PoP 12hr 50 60 60 10 10 20 30 30 30 Rain shwrs C S L L C S S S S S C C C C C S Tstms S S $$ PRZ007-090800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon 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 75 89 76 90 76 Temp 80 78 76 76 84 88 89 85 80 78 77 77 85 89 90 86 81 79 77 78 85 Dewpt 75 74 72 71 74 76 77 78 76 74 73 72 74 76 77 76 76 73 73 72 74 RH 85 88 87 85 72 68 68 80 88 88 87 85 70 66 66 72 85 82 87 82 70 Wind dir E NE NE NE E SE SE SE E NE NE NE E SE SE E E E NE NE NE Wind spd 6 5 3 3 5 11 11 8 4 5 5 4 4 11 14 11 8 6 4 4 4 Wind gust 25 Clouds B2 SC SC SC SC SC SC SC FW SC SC FW SC SC SC SC SC SC SC SC SC PoP 12hr 50 10 30 20 30 QPF 12hr 0.14 0.06 0.13 0.17 0.08 Rain shwrs C S S S S S C C S S S S S S S S C Tstms S Heat index 85 91 99102 97 86 92101103 96 87 93 Max heat 97 83 91 102 101 84 92 103 102 84 93 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 77 91 77 92 77 92 77 91 Temp 91 82 78 86 91 82 78 86 92 82 78 86 92 82 78 86 91 82 Dewpt 76 75 74 75 78 76 74 75 77 76 73 75 78 77 74 75 73 72 PWind dir E E E E E NE E NE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC CL FW SC SC SC FW FW SC SC FW FW SC SC FW FW SC PoP 12hr 30 30 30 10 20 10 20 5 40 Rain shwrs C C C C S S S S S S S S S S S C C $$ PRZ008-090800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 88 76 88 75 Temp 79 77 76 76 83 87 88 84 80 78 77 77 83 87 88 84 79 77 76 76 83 Dewpt 75 76 75 74 74 74 75 74 74 75 74 74 74 74 75 74 75 76 75 74 74 RH 88 97 97 94 74 65 66 72 82 91 90 90 74 65 66 72 88 97 97 94 74 Wind dir E E E E E NE NE E E E E E E E NE E E E E E E Wind spd 13 13 11 9 6 5 10 8 10 10 5 4 3 5 12 12 11 9 6 9 9 Clouds SC SC SC SC SC FW B2 B2 SC CL CL CL SC SC B2 B2 SC SC SC SC SC PoP 12hr 20 60 30 60 20 QPF 12hr 0.04 0.98 0.06 1.10 0.04 Rain shwrs S S S S L L C S S L L S S S Tstms S S S S Heat index 83 90 96 98 92 84 90 96 98 91 83 90 Max heat 92 90 98 97 83 90 98 97 90 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 76 89 77 89 78 89 77 88 Temp 88 80 77 84 89 81 78 84 89 82 79 85 89 81 78 84 88 81 Dewpt 75 75 75 74 77 77 76 76 76 76 76 75 76 76 76 75 76 76 PWind dir E E E E NE E E E NE Wind char GN GN GN GN GN GN BZ GN GN Avg clouds B1 B2 B1 SC SC B2 SC SC SC SC SC FW FW SC SC SC SC FW PoP 12hr 60 40 70 30 30 10 30 30 30 Rain shwrs L L C C L L C C C C S S C C S C C Tstms S S S S $$ PRZ010-090800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon 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 92 74 92 74 Temp 80 77 75 76 85 91 92 86 80 77 75 76 85 91 92 86 80 77 75 76 85 Dewpt 75 76 74 73 74 76 78 76 75 75 74 73 75 77 79 76 76 75 74 73 75 RH 85 97 97 90 70 62 64 72 85 94 97 90 72 64 66 72 88 94 97 90 72 Wind dir E E E E E SW W NE E E E E E E E E E E E E E Wind spd 8 6 4 3 2 3 3 3 4 6 6 4 3 3 5 1 4 6 3 4 3 Clouds B2 SC SC SC CL FW B2 B2 CL CL CL CL CL CL B2 B2 SC SC SC SC SC PoP 12hr 50 60 0 50 30 QPF 12hr 0.30 0.89 0 0.75 0.05 Rain shwrs C S L L C C S S C Tstms S S S S S Heat index 85 93103107 97 85 94104109 97 85 94 Max heat 97 93 107 106 94 109 107 94 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 92 75 92 75 92 75 92 75 92 Temp 92 81 76 86 92 81 76 86 92 81 76 86 92 81 76 86 92 81 Dewpt 77 76 75 76 79 78 76 77 79 77 75 76 78 77 75 77 79 76 PWind dir E E E E E E E E NE Wind char LT LT LT LT LT GN LT LT LT Avg clouds B1 B2 B1 SC SC B2 SC SC SC B1 SC SC SC B1 SC SC SC SC PoP 12hr 70 40 70 20 50 20 50 20 30 Rain shwrs L L C C L L S S C C S S C C S S C C Tstms S S S S S S S S $$ VIZ001-090800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 92 81 91 81 Temp 84 82 81 81 87 91 92 89 85 83 82 82 87 90 91 88 84 83 82 82 87 Dewpt 75 76 76 76 76 76 75 76 76 76 76 76 75 76 76 76 76 76 76 76 76 RH 74 82 85 85 70 62 58 66 75 80 82 82 68 64 62 68 77 80 82 82 70 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 13 14 14 12 12 11 10 12 13 14 13 12 10 10 12 14 14 13 13 14 13 Clouds SC SC SC B2 B1 SC B1 B1 SC SC FW FW SC SC SC SC SC SC SC SC B1 PoP 12hr 50 50 30 30 40 QPF 12hr 0.14 0.50 0.08 0.36 0.07 Rain shwrs S C C C C C C C C S C C C C S S S S C Heat index 91 90 87 88 98104103100 94 91 89 89 97102103 99 93 91 89 89 98 Max heat 97 91 98 104 103 93 97 103 102 92 98 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 81 92 82 92 81 92 81 92 Temp 91 84 82 88 92 85 83 88 92 85 82 88 92 85 82 88 92 85 Dewpt 76 76 77 77 77 78 77 77 77 77 77 76 77 77 77 77 77 77 PWind dir E E E E NE E E E NE Wind char GN BZ BZ BZ GN BZ BZ BZ GN Avg clouds SC SC SC B1 B2 SC SC FW CL CL CL FW SC SC SC SC SC SC PoP 12hr 40 60 60 10 0 20 30 30 20 Rain shwrs C S S L L C S S S S C C C S S Tstms S S $$ VIZ002-090800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Fri Aug 8 2025 Date 08/08/25 Sat 08/09/25 Sun 08/10/25 Mon 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 90 78 Temp 82 80 79 79 85 88 89 86 82 81 80 80 86 89 90 86 82 80 79 79 85 Dewpt 75 75 75 75 76 76 76 76 75 75 75 74 75 76 76 75 75 76 75 74 75 RH 79 85 88 88 75 68 66 72 79 82 85 82 70 66 64 70 79 88 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 13 13 12 10 11 10 10 12 11 12 11 9 9 12 13 16 12 12 9 12 13 Clouds SC SC SC B1 SC SC B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 40 40 30 40 30 QPF 12hr 0.09 0.27 0.07 0.45 0.13 Rain shwrs S S C C C C C C C S S S S S C C C C C C S Heat index 89 85 83 94 99100 96 89 87 84 85 95101102 95 89 86 83 94 Max heat 95 87 94 100 100 88 95 102 101 87 94 Date 08/11 Tue 08/12/25 Wed 08/13/25 Thu 08/14/25 Fri 08/15/25 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 78 90 79 90 78 89 78 90 Temp 90 82 79 85 90 83 80 86 90 82 79 85 89 82 79 85 90 83 Dewpt 76 75 77 77 77 77 76 77 77 76 76 76 77 76 76 77 77 76 PWind dir E E E E NE E E E NE Wind char GN GN BZ GN GN BZ BZ GN GN Avg clouds FW SC B2 B1 SC FW CL FW FW CL CL FW SC SC SC SC FW FW PoP 12hr 50 50 40 5 5 10 20 20 20 Rain shwrs S C C C C S S S S S S S S $$