Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
738 FOCA52 TJSJ 302103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Wed Jul 30 2025 PRZ001-310800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 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 83 81 79 80 86 89 90 87 83 81 80 80 86 89 90 87 83 81 80 80 85 Dewpt 75 74 74 74 75 74 75 75 75 75 76 75 76 76 77 77 76 77 76 76 76 RH 77 79 85 82 70 61 62 68 77 82 88 85 72 66 66 72 80 88 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 11 10 8 5 9 13 14 13 11 10 10 10 12 17 16 13 11 11 11 11 12 Clouds SC SC SC SC SC B1 B2 B2 SC SC B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 SC PoP 12hr 20 50 50 50 60 QPF 12hr 0.04 0.33 0.13 0.25 0.28 Rain shwrs S S S C C C C C C C C C C C C C L L C Tstms S S Heat index 90 86 83 85 94 99100 97 89 87 84 85 96101103 98 91 88 85 85 94 Max heat 96 89 94 100 100 88 96 103 102 90 94 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 79 90 79 87 79 89 79 89 Temp 88 82 80 86 90 83 80 84 87 82 79 85 89 82 80 85 89 82 Dewpt 78 76 77 77 76 75 75 75 76 76 76 76 76 76 75 76 76 73 PWind dir E SE SE SE E E E E E Wind char GN LT GN LT GN GN GN GN GN Avg clouds B1 B2 SC SC FW SC FW FW SC B2 SC SC SC B2 SC B1 B2 B2 PoP 12hr 80 50 20 40 70 40 70 60 70 Rain shwrs D D C C S S S C L L C C L L C L L L Tstms C C S S S S S S $$ PRZ002-310800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 90 80 89 82 Temp 83 81 79 80 86 89 90 88 83 82 81 81 86 88 89 87 84 83 82 83 86 Dewpt 75 74 74 74 75 75 76 75 75 76 76 76 77 78 77 78 77 77 76 76 77 RH 77 79 85 82 70 64 64 66 77 82 85 85 75 72 68 75 80 82 82 80 75 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 12 12 10 10 11 13 13 13 13 11 13 14 16 17 14 13 12 13 13 13 14 Clouds SC SC SC SC SC B1 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 SC PoP 12hr 30 50 60 60 60 QPF 12hr 0.05 0.16 0.15 0.28 0.28 Rain shwrs S S S S C C C C C C C C L L C C C C L L C Tstms S S Heat index 90 86 84 85 94101101 97 91 89 86 87 96102102 99 94 92 90 91 97 Max heat 98 89 94 102 101 90 96 102 102 93 97 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 76 87 77 88 80 89 80 90 Temp 89 80 77 83 87 80 78 84 88 83 80 86 89 83 81 86 90 83 Dewpt 78 76 77 77 77 76 76 76 76 76 76 76 76 76 76 76 77 73 PWind dir E SE SE E E E E E E Wind char GN LT GN GN GN GN GN GN GN Avg clouds B1 B2 B2 B2 SC SC SC SC B1 B2 SC SC SC B1 FW SC B2 B2 PoP 12hr 70 60 60 60 80 50 60 60 70 Rain shwrs L L L L L L C L D D C C L L S L L L Tstms S S S S S S S C C S S S S $$ PRZ007-310800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 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 91 78 91 77 Temp 82 79 78 79 85 90 91 88 82 80 79 79 86 90 91 87 82 80 78 78 84 Dewpt 73 72 72 71 73 76 76 75 72 71 72 72 73 71 73 73 73 72 72 72 72 RH 74 79 82 77 67 64 62 66 72 74 79 79 65 54 56 63 74 77 82 82 67 Wind dir E NE NE NE E E SE E E E E E E E E E E NE NE NE E Wind spd 8 6 4 4 5 14 13 13 10 5 5 8 12 16 14 13 8 5 4 4 6 Wind gust 25 26 25 Clouds SC SC SC SC SC SC SC B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC PoP 12hr 10 40 40 40 30 QPF 12hr 0.02 0.07 0.05 0.19 0.09 Rain shwrs S S S S S S C C S S S S C C C C C C C C S Heat index 87 83 92 95 99 93 87 84 83 93 97 99 94 87 83 90 Max heat 97 86 92 99 98 86 93 99 99 85 90 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 77 89 78 88 77 90 77 90 Temp 89 81 78 84 89 82 79 84 88 81 78 85 90 81 78 85 90 81 Dewpt 72 74 73 74 74 72 73 69 68 71 71 72 70 73 71 71 72 73 PWind dir E E SE E E E E NE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC SC SC FW FW SC B2 SC SC SC SC CL FW SC SC PoP 12hr 30 20 40 10 80 20 30 10 30 Rain shwrs C C S C C C S S D D S S C C S C C Tstms C C $$ PRZ008-310800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 89 76 89 77 Temp 81 78 77 78 84 88 89 86 80 78 77 77 84 88 89 85 81 79 78 78 84 Dewpt 74 75 75 75 74 74 75 75 74 75 75 75 75 76 76 76 76 77 77 77 76 RH 79 91 94 91 72 63 64 70 82 91 94 94 74 68 66 75 85 94 97 97 77 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 18 17 13 11 12 11 14 12 9 14 11 10 11 10 20 19 18 17 14 13 18 Clouds SC SC SC SC SC SC SC B2 SC CL FW CL SC SC B2 B2 SC SC SC SC FW PoP 12hr 0 50 20 60 30 QPF 12hr 0 0.30 0.01 0.48 0.05 Rain shwrs S C S S S L L C C S S S Tstms S S Heat index 86 91 97 99 94 85 92 99101 94 87 84 92 Max heat 95 84 91 99 98 84 92 101 100 86 92 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 86 78 88 78 88 78 88 Temp 88 81 78 83 86 81 78 84 88 81 79 84 88 81 79 84 88 81 Dewpt 76 76 77 75 76 75 75 74 76 75 76 75 75 74 76 75 76 73 PWind dir E E E SE E E E E E Wind char BZ GN GN LT GN GN BZ BZ GN Avg clouds SC B1 CL FW SC B1 FW FW SC B2 SC SC SC B1 SC SC SC SC PoP 12hr 70 10 50 5 60 30 60 30 50 Rain shwrs L L S L L S S L L C C L L S C C C Tstms S S S S S S S S $$ PRZ010-310800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 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 93 76 93 75 Temp 81 78 76 77 86 92 93 89 82 79 77 78 87 92 93 87 81 78 76 77 85 Dewpt 75 74 74 72 75 77 78 77 76 75 73 73 76 78 79 79 77 77 76 74 76 RH 82 88 94 85 70 62 62 68 82 88 87 85 70 64 64 77 88 97100 90 75 Wind dir NE NE E E E E SW E E E E E E E E E E E E E E Wind spd 11 13 8 4 4 2 6 5 1 6 5 4 5 3 2 2 2 8 8 6 8 Clouds SC SC SC SC SC SC OV OV SC CL CL CL SC SC OV OV B1 B1 SC SC CL PoP 12hr 30 70 20 70 40 QPF 12hr 0.12 1.50 0.01 0.71 0.05 Rain shwrs C L L S S S L L C C S S Tstms S S S S Heat index 88 95105109101 89 83 97107110102 88 95 Max heat 102 86 95 109 108 86 97 110 109 85 95 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 75 91 75 93 76 93 76 93 Temp 91 80 76 85 91 80 76 86 93 82 77 87 93 82 77 87 93 81 Dewpt 80 77 76 77 79 76 75 76 79 77 74 76 78 76 74 76 79 73 PWind dir E E SE SE E E E E E Wind char LT LT GN LT LT LT LT GN LT Avg clouds SC B1 CL CL SC B1 CL CL SC B1 SC FW SC B1 CL FW SC B1 PoP 12hr 80 0 70 5 70 20 60 10 70 Rain shwrs D D L L L L S S L L S L L Tstms C C S S S S S S S S $$ VIZ001-310800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 90 80 91 81 Temp 84 82 80 81 86 89 90 88 83 82 81 81 87 90 91 88 84 83 82 82 87 Dewpt 76 76 76 76 75 76 75 75 76 77 78 77 78 78 78 78 78 78 78 77 78 RH 77 82 88 85 70 66 62 66 80 85 91 88 75 68 66 72 82 85 88 85 75 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 19 18 17 16 16 18 16 18 17 18 20 21 23 20 20 18 20 20 20 21 20 Clouds SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 B1 B2 B2 SC SC SC SC SC PoP 12hr 40 40 40 50 50 QPF 12hr 0.05 0.10 0.11 0.18 0.10 Rain shwrs S S C C S C C C C C C C C C S S C C C Tstms S S Heat index 93 89 86 88 95101102 98 92 90 88 88 99105106101 95 93 90 90 99 Max heat 100 92 95 102 101 91 99 106 105 94 99 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 80 85 79 88 80 91 80 89 Temp 90 83 81 83 85 81 79 85 88 83 80 87 91 84 81 86 89 84 Dewpt 78 78 77 78 77 77 77 77 77 77 77 77 76 76 77 77 77 71 PWind dir E SE SE E E E E E E Wind char BZ GN BZ BZ GN BZ BZ BZ GN Avg clouds SC B1 B2 B2 SC SC SC SC SC SC SC SC SC B1 FW SC B2 B2 PoP 12hr 60 60 50 60 60 50 60 60 60 Rain shwrs C L L L C C C L L C C C L L S L L L Tstms S S S S S S S S S $$ VIZ002-310800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 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 78 91 80 91 79 Temp 83 80 79 80 86 90 91 88 84 82 81 81 87 90 91 87 83 81 80 80 85 Dewpt 75 75 75 74 75 75 76 75 75 76 76 76 77 77 77 77 76 77 76 76 77 RH 77 85 88 82 70 62 62 66 74 82 85 85 72 66 64 72 80 88 88 88 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 19 17 13 13 14 16 17 16 13 16 17 18 19 19 20 18 17 18 18 17 17 Clouds B2 B2 SC SC B1 SC SC SC B1 B1 SC SC B1 B1 SC SC B1 B1 B2 B2 SC PoP 12hr 50 40 40 40 50 QPF 12hr 0.14 0.10 0.09 0.12 0.20 Rain shwrs C C C C C S S C C C C C C C C C C C C C C Heat index 90 86 84 95101102 98 91 89 87 87 98104104 99 91 89 85 86 95 Max heat 99 89 95 102 102 90 98 104 103 90 95 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 79 87 78 89 79 90 79 90 Temp 89 82 80 84 87 81 79 85 89 82 80 86 90 83 80 86 90 82 Dewpt 77 76 77 77 76 76 76 76 76 76 76 76 76 76 76 76 76 71 PWind dir E SE SE E E E E E E Wind char GN GN BZ GN BZ BZ BZ GN GN Avg clouds SC B1 B2 B2 SC B1 B2 B1 SC SC SC SC SC B1 CL FW B1 B2 PoP 12hr 60 60 60 60 60 50 60 50 60 Rain shwrs C L L L C L L L L C C C L L C L L Tstms S S S S S S S S S S S $$