Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
1
2
289 FOCA52 TJSJ 280903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Thu Aug 28 2025 PRZ001-282000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Thu Aug 28 2025 Date Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 80 90 80 91 Temp 86 90 91 88 84 82 81 81 86 89 90 87 83 82 81 81 87 90 91 87 83 Dewpt 75 76 76 76 75 76 76 75 76 77 77 76 76 76 76 75 76 76 76 75 76 RH 70 64 62 68 74 82 85 82 72 68 66 70 80 82 85 82 70 64 62 68 80 Wind dir SE E SE E SE SE SE SE E E E E E E E E E E E E E Wind spd 5 11 16 11 6 5 5 5 6 11 12 13 9 8 6 5 8 12 14 13 9 Clouds B1 SC B2 B1 SC SC SC SC B1 SC B2 OV SC SC SC SC SC SC SC SC SC PoP 12hr 50 40 70 10 10 QPF 12hr 0.44 0.14 1.22 0.07 0.02 Rain shwrs C C C C S C C C C C C L S S S S S S S S S Tstms S S S S Heat index 96102103 98 92 90 87 87 96102103 97 92 89 86 87 97103104 97 91 Max heat 96 103 102 91 96 103 102 91 97 104 102 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 92 79 92 79 92 79 92 Temp 80 87 92 83 80 87 92 83 80 87 92 83 80 87 92 83 Dewpt 75 75 76 75 75 75 76 76 75 76 76 76 75 76 76 76 PWind dir E E E E SE E SE E Wind char GN GN LT GN LT GN LT GN Avg clouds SC SC SC SC SC SC B1 SC SC SC SC SC SC B1 SC SC PoP 12hr 20 20 30 40 40 40 40 40 Rain shwrs S S S S S C C C S C C C C C C S Tstms S S $$ PRZ002-282000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Thu Aug 28 2025 Date Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 81 90 80 90 Temp 86 89 90 87 84 83 82 82 87 89 90 87 83 82 81 81 86 89 90 87 83 Dewpt 78 77 78 78 77 77 77 77 78 78 77 78 77 77 77 77 77 77 77 78 76 RH 77 68 68 75 80 82 85 85 75 70 66 75 82 85 88 88 75 68 66 75 80 Wind dir SE SE SE SE SE SE SE E E E E E E E E E E E E E NE Wind spd 8 11 9 8 5 8 8 8 9 10 9 10 9 9 8 8 9 11 11 10 9 Clouds B1 B1 B1 SC SC SC SC B1 B1 SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC PoP 12hr 40 40 40 40 40 QPF 12hr 0.12 0.17 0.42 0.26 0.07 Rain shwrs C C C S C C C C C C S S C C C C C C S S C Tstms S Heat index 98103104100 94 91 89 90 99104103100 93 90 87 88 97103103 99 92 Max heat 98 104 104 93 99 104 103 92 97 103 102 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 90 80 91 80 90 80 90 Temp 81 86 90 83 81 86 91 83 81 86 90 83 81 86 90 83 Dewpt 77 77 76 76 76 78 77 76 77 77 77 76 77 78 77 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B1 B1 SC SC SC B1 B1 B1 SC SC B1 SC B2 B2 B1 SC PoP 12hr 40 40 50 50 50 50 50 50 Rain shwrs C C C C C C C C S C C C C C C S Tstms S S $$ PRZ007-282000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Thu Aug 28 2025 Date Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 77 90 76 90 Temp 85 89 90 86 81 79 78 78 85 89 90 86 81 79 77 77 85 89 90 86 81 Dewpt 74 73 73 73 73 73 73 72 73 73 74 75 75 74 73 72 73 72 74 75 75 RH 70 59 58 65 77 82 85 82 67 59 60 70 82 85 87 85 67 57 60 70 82 Wind dir E SE SE SE E NE NE NE E SE SE E E NE NE NE NE E SE E E Wind spd 6 11 10 9 6 5 4 3 4 10 10 6 5 4 3 4 5 12 13 9 4 Clouds SC SC SC SC SC SC SC FW SC SC FW SC SC SC SC SC SC SC SC SC FW PoP 12hr 20 30 20 5 20 QPF 12hr 0.08 0.08 0.17 0.04 0.26 Rain shwrs S S S S S C S S S S S S S S S S S S S Tstms Heat index 92 97 98 93 86 83 92 97 99 94 86 91 97 99 95 87 Max heat 92 98 98 85 92 99 99 84 91 99 99 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 77 90 77 90 77 90 Temp 78 85 90 81 78 85 90 81 78 85 90 81 78 85 90 81 Dewpt 73 73 73 74 73 73 74 74 73 73 73 73 73 74 74 74 PWind dir NE E E E E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds FW SC SC SC SC SC SC SC FW FW FW SC SC SC SC SC PoP 12hr 5 20 20 20 5 20 20 20 Rain shwrs S S S S S S S S S S S S S S $$ PRZ008-282000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Thu Aug 28 2025 Date Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 76 87 76 88 Temp 83 87 88 84 80 78 77 77 83 86 87 84 80 78 77 77 83 87 88 85 81 Dewpt 74 76 77 76 76 76 76 74 75 76 77 76 76 76 76 75 76 76 77 75 75 RH 74 70 70 77 88 94 97 90 77 72 72 77 88 94 97 94 80 70 70 72 82 Wind dir E E NE E E SE SE E E NE NE E E E E E E E NE NE E Wind spd 5 2 6 5 1 3 3 4 2 3 5 5 8 8 8 10 11 8 8 6 11 Clouds SC CL B2 OV SC CL CL FW FW FW B2 OV SC SC FW FW CL CL B1 B1 B1 PoP 12hr 70 20 70 10 40 QPF 12hr 1.24 0.03 1.40 0.04 0.77 Rain shwrs S C L S S S L L S S C C C Tstms S S S S S S Heat index 90 97100 93 85 90 97 99 92 84 92 99100 93 86 Max heat 90 100 99 84 90 99 97 92 100 99 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 88 76 88 77 88 77 88 Temp 78 84 88 80 77 83 88 80 78 83 88 80 78 83 88 80 Dewpt 76 75 77 75 75 75 77 76 75 75 77 76 76 75 76 76 PWind dir E E E E E E E E Wind char GN GN LT LT LT LT LT GN Avg clouds SC FW SC SC SC FW SC SC CL FW SC SC SC FW SC SC PoP 12hr 40 30 10 50 5 30 10 40 Rain shwrs C S C C S S C C S C C S S C C Tstms S S S S $$ PRZ010-282000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Thu Aug 28 2025 Date Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 76 93 77 92 Temp 86 91 92 87 81 79 77 78 87 92 93 88 82 80 78 79 86 91 92 87 81 Dewpt 76 77 79 78 77 77 76 74 76 78 79 78 77 76 76 74 77 78 79 78 77 RH 72 64 66 75 88 94 97 88 70 64 64 72 85 88 94 85 75 66 66 75 88 Wind dir E SE E E E NE E E E W NW NE E E E E E E N NE E Wind spd 4 5 9 3 5 4 4 4 3 3 5 5 3 3 2 4 4 2 3 6 4 Clouds FW CL SC B2 FW CL CL FW CL CL B2 B2 SC SC FW FW CL CL OV OV B1 PoP 12hr 50 5 60 5 70 QPF 12hr 0.36 0.01 1.21 0.03 1.52 Rain shwrs S C C C L S S L L C Tstms S S S S S Heat index 95105109100 89 83 97107110101 91 86 98107108100 88 Max heat 95 109 107 87 97 110 109 89 98 108 108 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 75 93 75 93 75 93 Temp 76 86 92 80 76 85 93 80 76 85 93 80 76 85 93 80 Dewpt 75 76 78 77 76 76 79 77 75 76 79 76 75 76 79 77 PWind dir E NE E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC B1 SC FW SC B1 CL FW SC B1 FW FW SC B1 PoP 12hr 40 60 10 60 5 60 5 50 Rain shwrs C L L S S L L L L C C Tstms S S S S S S S S $$ VIZ001-282000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Thu Aug 28 2025 Date Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 80 90 81 91 Temp 86 89 89 86 83 82 81 81 86 89 90 87 84 83 82 82 87 90 91 88 84 Dewpt 77 77 77 77 77 77 77 77 78 77 77 77 78 77 77 77 77 77 77 77 77 RH 75 68 68 75 82 85 88 88 77 68 66 72 82 82 85 85 72 66 64 70 80 Wind dir E SE SE SE E E E E E E E E E E E E E E E E E Wind spd 11 13 12 10 11 12 11 13 13 13 11 11 14 14 14 14 14 14 12 12 12 Clouds SC SC SC SC SC SC SC SC SC SC FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 30 30 30 30 QPF 12hr 0.09 0.13 0.12 0.16 0.29 Rain shwrs C S S S S C C C C S S S S C C C C S S S Heat index 98101102 98 92 90 88 88 98103103 99 94 92 89 90 99104104 99 94 Max heat 98 102 101 91 98 103 103 93 99 104 103 Heat Y Y Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 92 82 92 82 92 82 92 Temp 82 88 92 85 83 88 92 85 83 88 92 85 83 88 92 85 Dewpt 77 77 76 77 77 78 77 76 77 77 77 77 77 78 77 77 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 20 40 40 20 10 20 20 Rain shwrs C C S S S C C S S S S S S S S S $$ VIZ002-282000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Thu Aug 28 2025 Date Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 80 90 81 90 Temp 86 89 90 87 83 82 81 81 86 89 90 87 84 83 82 82 87 89 90 87 83 Dewpt 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 76 RH 75 68 66 72 82 85 88 88 75 68 66 72 80 82 85 85 72 68 66 72 80 Wind dir E SE SE SE E E E E E E E E E E E E E E E E E Wind spd 9 11 11 8 6 8 9 10 11 12 11 11 11 13 12 12 13 14 13 11 10 Clouds B2 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 30 30 30 30 QPF 12hr 0.13 0.13 0.59 0.14 0.34 Rain shwrs C S C C S C C C C S C S S S S S C C C C S Tstms S Heat index 96102102 99 92 90 87 88 97102103 98 93 91 89 90 98103102 98 90 Max heat 96 103 102 91 97 103 102 92 98 103 102 Heat Y Y Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 79 91 78 91 79 91 Temp 80 86 90 82 80 86 91 82 79 86 91 83 80 86 91 83 Dewpt 75 76 76 76 76 76 76 76 76 77 77 76 77 77 76 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC B1 SC SC SC SC SC SC SC FW FW SC PoP 12hr 30 30 40 40 30 10 10 20 Rain shwrs S C C C C C C C C C S S S S S S $$