Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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970 FOCA52 TJSJ 272103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Wed Aug 27 2025 PRZ001-280800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Wed Aug 27 2025 Date 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 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 79 92 80 92 78 Temp 83 81 80 80 87 91 92 88 84 82 81 81 87 91 92 88 83 81 79 79 86 Dewpt 75 76 75 75 75 76 76 76 76 76 76 75 76 77 77 76 77 76 75 75 76 RH 77 85 85 85 68 62 60 68 77 82 85 82 70 64 62 68 82 85 88 88 72 Wind dir E SE SE SE SE E SE SE SE SE SE SE E E E E E E E E E Wind spd 8 6 6 4 5 11 16 11 6 5 4 4 5 10 13 13 9 8 5 5 8 Clouds B2 B1 SC SC SC SC B2 B1 SC SC SC SC SC SC B2 B2 SC SC SC SC SC PoP 12hr 50 50 30 70 10 QPF 12hr 0.12 0.20 0.12 1.19 0.07 Rain shwrs C C S S S C C C S C C C C C L L S S S S S Tstms S S S Heat index 90 88 84 85 97103105 99 93 90 87 87 98104106 99 91 87 83 96 Max heat 97 89 97 105 104 92 98 106 104 89 96 Date 08/30 Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 92 79 92 79 92 79 92 Temp 91 83 80 87 92 83 80 87 92 83 80 87 92 83 80 87 92 83 Dewpt 76 76 76 76 76 76 76 76 77 76 75 76 76 76 75 75 76 76 PWind dir E E E E E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC SC SC SC SC SC SC FW SC SC FW SC B1 SC SC PoP 12hr 10 20 30 30 40 30 30 40 40 Rain shwrs S S S S S C C C C C S C C C C C C S Tstms S S $$ PRZ002-280800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Wed Aug 27 2025 Date 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 90 81 90 80 Temp 83 82 81 81 86 89 90 87 84 83 82 82 87 89 90 87 83 82 81 81 86 Dewpt 77 77 77 76 78 77 77 78 77 77 77 77 78 78 77 78 77 78 77 77 77 RH 82 85 88 85 77 68 66 75 80 82 85 85 75 70 66 75 82 88 88 88 75 Wind dir SE SE SE SE SE SE SE SE SE SE E E E E E E E E E E E Wind spd 10 9 8 6 9 11 10 9 8 6 5 6 6 9 9 9 9 8 6 6 10 Clouds B2 B2 SC SC SC B1 B1 SC SC SC SC B1 SC SC SC SC B1 B1 B1 B1 SC PoP 12hr 50 40 40 40 40 QPF 12hr 0.15 0.10 0.15 0.39 0.26 Rain shwrs C C S S S C C S C C C C C C S S C C C C C Tstms S Heat index 92 89 87 87 98103103100 94 92 89 90 99103103100 93 90 88 88 98 Max heat 98 91 98 103 103 93 99 103 103 92 98 Date 08/30 Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 80 90 80 91 80 90 80 90 Temp 90 83 81 86 90 83 81 86 91 83 81 86 90 83 81 86 90 83 Dewpt 77 76 77 77 77 77 77 78 77 76 77 77 77 76 77 77 77 76 PWind dir E E E E E E E E E Wind char GN GN GN LT GN GN GN GN GN Avg clouds SC SC SC B1 B1 SC B2 B2 B1 B1 SC B1 SC SC B2 B2 B1 SC PoP 12hr 30 40 50 50 50 40 50 50 50 Rain shwrs C C C C C C C C C C C C C C C C C S Tstms S S $$ PRZ007-280800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Wed Aug 27 2025 Date 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 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 77 90 76 Temp 81 79 78 78 85 89 90 86 81 79 78 78 85 89 90 86 81 79 77 77 85 Dewpt 73 73 73 73 74 74 73 73 73 74 74 74 74 74 74 73 74 74 73 71 72 RH 77 82 85 85 70 61 58 65 77 85 88 88 70 61 60 65 79 85 87 82 65 Wind dir E NE NE NE E SE SE SE E NE NE NE E SE SE E E NE NE NE NE Wind spd 8 6 5 5 6 11 11 9 6 5 5 4 5 10 9 6 3 3 3 3 3 Clouds SC FW SC SC FW SC SC SC SC SC SC FW SC SC FW FW SC SC SC SC FW PoP 12hr 20 20 30 20 5 QPF 12hr 0.05 0.06 0.07 0.16 0.04 Rain shwrs S S S S S S S S C S S S S S S S S S Heat index 86 83 92 98 99 93 86 83 92 98 99 93 86 91 Max heat 93 85 92 99 98 85 92 99 98 84 91 Date 08/30 Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 77 90 77 90 77 90 77 90 Temp 90 81 78 85 90 81 78 85 90 81 78 85 90 81 78 85 90 81 Dewpt 74 74 72 73 74 74 73 73 74 73 73 72 74 74 73 72 72 74 PWind dir E NE E NE E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC FW FW SC SC SC SC SC SC FW FW SC SC FW SC SC SC PoP 12hr 20 5 20 20 20 5 10 20 20 Rain shwrs S S S S S S S S S S S S S S S S $$ PRZ008-280800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Wed Aug 27 2025 Date 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 88 76 87 76 Temp 80 78 77 77 83 87 88 84 80 78 77 77 83 86 87 84 80 78 77 77 83 Dewpt 75 76 75 73 74 76 77 76 76 76 76 73 75 76 77 75 76 77 76 74 76 RH 85 94 94 87 74 70 70 77 88 94 97 87 77 72 72 74 88 97 97 90 80 Wind dir E SE E E E E E E E SE E E E NE NE E E E E E E Wind spd 8 6 6 4 4 3 6 4 2 3 3 5 5 4 8 8 9 9 8 9 12 Clouds SC FW CL CL CL CL B2 OV SC CL CL FW FW FW B2 B2 SC SC FW FW CL PoP 12hr 30 70 20 70 10 QPF 12hr 0.03 1.23 0.03 1.39 0.04 Rain shwrs C C L S S S L L S S Tstms S S S S Heat index 84 90 97100 93 85 90 97 99 91 84 91 Max heat 91 90 100 98 84 90 99 97 91 Date 08/30 Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 88 76 88 77 88 77 88 Temp 88 81 78 84 88 80 77 83 88 80 78 83 88 80 78 83 88 80 Dewpt 77 76 76 76 77 76 76 76 77 76 76 75 76 76 76 75 77 76 PWind dir E E E E E E E E E Wind char GN GN GN GN GN LT LT LT GN Avg clouds FW B1 B1 SC SC SC SC SC FW B1 SC SC SC SC SC FW SC SC PoP 12hr 40 40 30 30 50 10 20 10 40 Rain shwrs C C C C C C C C C C S S S S S S C C Tstms S S S S S S $$ PRZ010-280800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Wed Aug 27 2025 Date 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 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 92 76 93 75 Temp 81 78 76 77 86 91 92 87 81 79 77 78 87 92 93 87 81 78 76 77 86 Dewpt 77 76 75 74 76 77 78 78 77 76 75 74 76 78 79 78 77 76 75 75 77 RH 88 94 97 90 72 64 64 75 88 91 94 88 70 64 64 75 88 94 97 94 75 Wind dir E E E E E S E SE E E NE E E SW N E E E E E E Wind spd 1 6 8 4 4 5 9 3 5 5 5 4 3 3 5 6 5 3 2 4 5 Clouds SC CL CL FW CL CL SC B2 FW CL CL FW FW FW B2 B2 SC SC FW FW CL PoP 12hr 10 50 5 60 5 QPF 12hr 0.01 0.35 0.01 1.21 0.03 Rain shwrs S C C L L S S Tstms S S S Heat index 88 95105108100 89 83 97107110101 88 96 Max heat 100 85 95 108 107 87 97 110 109 85 96 Date 08/30 Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 93 75 93 75 93 Temp 92 81 76 86 92 80 76 85 93 80 76 85 93 80 76 85 93 80 Dewpt 79 76 76 77 78 77 76 76 79 77 75 76 79 77 75 76 78 77 PWind dir E E SE E E E E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B2 B1 SC SC B1 SC FW SC B1 SC FW SC B1 FW FW SC B1 PoP 12hr 70 40 60 10 60 10 70 5 50 Rain shwrs L L C C L L S S L L S S L L S C C Tstms S S S S S S S S S S $$ VIZ001-280800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Wed Aug 27 2025 Date 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 82 89 80 92 81 Temp 85 84 83 83 86 89 89 86 83 82 81 81 87 91 92 89 85 83 82 82 87 Dewpt 77 77 77 77 78 77 77 77 77 78 77 77 78 78 78 77 77 77 77 77 77 RH 77 80 82 82 77 68 68 75 82 88 88 88 75 66 64 68 77 82 85 85 72 Wind dir E E SE E E SE SE SE SE E E E E E E E E E E E E Wind spd 13 14 12 11 11 12 12 10 10 10 9 10 11 11 10 11 13 14 12 13 13 Clouds SC B1 SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC SC SC SC SC PoP 12hr 40 20 30 20 30 QPF 12hr 0.11 0.07 0.12 0.10 0.08 Rain shwrs C C S S S S S S S C C C S S S S S S C Heat index 95 93 91 91 98101102 98 92 90 87 89100106107101 95 92 89 90 99 Max heat 100 94 98 102 101 91 100 107 106 94 99 Date 08/30 Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 81 92 82 92 82 92 82 92 Temp 91 84 82 88 92 85 83 88 92 85 83 88 92 85 83 88 92 85 Dewpt 77 77 77 77 77 77 77 77 77 77 78 78 77 77 77 78 77 77 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 10 30 40 40 30 20 20 20 Rain shwrs C S S S S C C C C C C C S S S S S S $$ VIZ002-280800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Wed Aug 27 2025 Date 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 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 79 90 79 90 79 Temp 82 81 80 80 86 89 90 87 83 81 80 80 86 89 90 87 83 81 80 80 86 Dewpt 76 76 76 76 77 77 77 77 77 77 77 77 77 77 77 77 77 77 77 76 77 RH 82 85 88 88 75 68 66 72 82 88 91 91 75 68 66 72 82 88 91 88 75 Wind dir E E SE E SE SE SE SE E E E E E E E E E E E E E Wind spd 10 11 9 9 10 12 12 9 9 10 8 9 11 11 11 11 11 12 11 11 13 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 30 30 30 20 QPF 12hr 0.08 0.10 0.12 0.57 0.13 Rain shwrs S S S S S S C C S C C C S S C C S S S S S Heat index 90 87 85 86 97102103 98 91 88 85 86 97102102 98 91 88 85 86 97 Max heat 96 89 97 103 102 90 97 103 102 90 97 Date 08/30 Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 09/03/25 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 79 91 78 91 79 91 Temp 90 83 80 86 90 82 80 86 91 82 79 86 91 83 80 86 91 83 Dewpt 76 76 77 77 77 77 76 77 77 76 76 77 76 76 76 77 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 SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC FW FW SC PoP 12hr 30 30 30 50 50 10 10 10 20 Rain shwrs C C S C C C C C C S S S S S S S S S $$