Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
849 FOCA52 TJSJ 030903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sun Aug 3 2025 PRZ001-032000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 79 92 79 91 Temp 87 91 92 88 83 81 80 80 87 91 92 88 83 81 80 80 86 90 91 87 83 Dewpt 75 77 77 77 76 76 76 75 76 77 76 76 76 76 75 75 75 76 76 76 75 RH 68 64 62 70 80 85 88 85 70 64 60 68 80 85 85 85 70 64 62 70 77 Wind dir SE E E E E E E E E E E E E E E E E E E E NE Wind spd 8 13 17 13 9 9 10 10 10 14 16 13 10 10 10 9 10 14 13 12 10 Clouds SC SC B2 B2 SC SC B1 SC SC SC SC SC SC SC SC SC SC SC SC SC B2 PoP 12hr 60 40 30 30 50 QPF 12hr 0.20 0.22 0.14 0.14 0.12 Rain shwrs C C L C C C C C C C S S C C C C C C C C C Tstms S S Obvis H H Heat index 96105106100 91 87 86 85 98105105 99 91 87 85 85 95102103 98 90 Max heat 96 106 105 91 98 106 103 91 95 103 102 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 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 91 78 92 78 91 78 91 Temp 80 86 91 82 79 87 92 83 79 86 91 82 79 86 91 83 Dewpt 75 75 75 75 74 75 75 75 74 75 75 75 75 75 75 75 PWind dir E E SE E E E E E Wind char GN GN LT GN LT GN GN GN Avg clouds B2 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW PoP 12hr 50 40 30 30 20 20 30 40 Rain shwrs C C C S S C C S S S S S S C C C Tstms S S $$ PRZ002-032000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 81 90 81 90 Temp 86 89 90 87 84 83 82 82 87 89 90 87 84 83 82 82 87 89 90 87 83 Dewpt 78 77 77 78 76 76 76 76 77 77 76 77 76 76 76 75 76 76 77 77 76 RH 77 68 66 75 77 80 82 82 72 68 64 72 77 80 82 79 70 66 66 72 80 Wind dir SE E E E E E E E E E E E E E E E E E E NE NE Wind spd 11 13 13 12 12 12 12 12 12 16 13 12 11 12 12 10 11 13 12 10 10 Clouds B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 B2 PoP 12hr 60 50 40 30 50 QPF 12hr 0.26 0.29 0.19 0.14 0.31 Rain shwrs C L L C C C C C C C C S C C C C C C C C C Tstms S S S S S S S Obvis H Heat index 98102103100 93 91 89 89 99102102 99 93 91 89 89 98100103 99 91 Max heat 98 105 105 92 99 103 102 91 98 103 102 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 90 80 90 81 90 80 90 Temp 80 86 90 83 81 86 90 84 82 87 90 83 81 86 90 83 Dewpt 75 76 75 75 74 76 76 75 75 76 76 76 75 75 75 75 PWind dir NE E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds B2 B1 B1 SC SC SC SC B1 B1 B1 SC SC B1 B1 SC SC PoP 12hr 50 40 30 40 40 40 40 40 Rain shwrs C C C C S C C C C C C C C C C C Tstms S S $$ PRZ007-032000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 90 76 92 Temp 85 89 90 86 82 80 79 79 85 89 90 86 81 79 77 78 86 91 92 87 81 Dewpt 76 78 78 78 76 75 74 73 75 78 78 78 76 74 72 70 70 71 71 72 73 RH 75 70 68 77 82 85 85 82 72 70 68 77 85 85 85 76 59 52 51 61 77 Wind dir E SE SE SE E NE NE NE E SE SE SE E E NE NE NE E E E NE Wind spd 8 12 11 11 9 6 8 9 9 13 14 12 8 6 5 5 5 16 17 12 8 Wind gust 24 25 27 28 Clouds B1 B1 B2 B1 SC SC SC SC FW SC SC SC CL CL CL CL FW FW SC SC FW PoP 12hr 50 30 10 5 20 QPF 12hr 0.20 0.06 0.03 0 0.05 Rain shwrs C C C C S S C S S S S S S S S Tstms S S S S Obvis H H H H H H H Heat index 94103105 98 89 85 94103105 98 87 91 98 99 94 86 Max heat 94 105 105 87 94 105 103 85 91 99 98 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 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 76 90 76 90 76 91 76 91 Temp 77 85 90 81 77 85 90 81 77 85 91 81 77 85 91 81 Dewpt 73 75 78 76 73 74 76 75 68 69 72 68 72 73 77 75 PWind dir NE E E E E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds FW FW FW FW CL FW FW FW CL FW FW CL CL FW SC SC PoP 12hr 5 10 10 10 5 5 5 20 Rain shwrs S S S S S S S S S $$ PRZ008-032000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 76 89 77 89 Temp 84 88 89 85 80 78 77 77 84 88 89 85 81 79 78 78 84 88 89 85 81 Dewpt 75 76 76 75 76 76 75 76 75 75 76 76 76 76 76 75 74 75 75 75 75 RH 74 68 66 72 88 94 94 97 74 66 66 75 85 91 94 91 72 66 64 72 82 Wind dir E E NE E E E E E E E E E E E E E E E NE NE E Wind spd 5 5 9 4 5 4 9 11 10 6 16 16 11 14 14 12 13 16 17 17 18 Clouds SC SC B2 OV SC FW FW CL CL CL B2 B1 SC SC CL CL FW FW FW FW SC PoP 12hr 70 10 60 5 10 QPF 12hr 1.17 0.01 1.30 0.01 0.02 Rain shwrs S S L L S L C S S S S S Tstms C S Obvis H H H H H H Heat index 92 99100 94 86 92 98100 94 87 91 98 99 94 87 Max heat 92 102 100 86 92 100 99 86 91 99 98 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 88 76 88 76 89 76 88 Temp 78 84 88 80 77 83 88 80 77 84 89 80 77 83 88 81 Dewpt 76 75 76 76 76 74 75 75 75 74 75 75 75 74 75 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC B1 B2 SC FW FW SC FW FW FW SC CL FW FW FW PoP 12hr 20 70 10 40 5 30 5 5 Rain shwrs S S L L S S C C S S C C Tstms S S $$ PRZ010-032000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 94 75 94 75 94 Temp 87 93 94 88 81 79 76 77 87 93 94 88 81 79 76 77 87 93 94 88 81 Dewpt 76 78 78 78 77 75 75 73 76 78 78 78 78 76 75 73 76 77 76 78 77 RH 70 62 60 72 88 88 97 87 70 62 60 72 91 91 97 87 70 60 56 72 88 Wind dir E SE SE NE E E E NE E SE NW SE E E E E E E E NE NE Wind spd 5 6 6 3 6 6 4 5 3 2 6 2 5 4 6 4 5 2 2 8 12 Clouds SC SC B2 B2 FW FW FW CL CL CL B2 SC SC SC CL CL FW FW SC SC FW PoP 12hr 60 5 60 10 30 QPF 12hr 1.00 0.01 1.30 0.01 0.06 Rain shwrs S S C L S L S S S C C S Tstms S C Obvis H H H H H H H Heat index 98109110102 88 98109110102 89 98107107102 88 Max heat 98 114 109 87 98 110 109 87 98 107 107 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 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 93 74 93 74 93 74 93 Temp 76 86 93 80 75 86 93 80 75 86 93 80 75 86 93 80 Dewpt 75 76 78 76 74 75 78 76 74 75 78 76 74 75 77 76 PWind dir NE E E E E E E E Wind char GN LT LT LT LT LT LT LT Avg clouds FW FW SC B2 SC FW FW SC CL CL FW SC FW FW SC B1 PoP 12hr 5 70 10 50 0 50 5 60 Rain shwrs S S L L S S C C C C L L Tstms S S S S S S $$ VIZ001-032000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 82 92 81 91 Temp 87 90 91 88 85 84 83 83 88 91 92 89 85 83 82 82 87 90 91 88 84 Dewpt 78 77 78 77 77 78 77 77 77 77 77 76 76 77 77 76 76 77 77 77 77 RH 75 66 66 70 77 82 82 82 70 64 62 66 75 82 85 82 70 66 64 70 80 Wind dir SE SE E E E E E E E E E E E E E E E E E NE NE Wind spd 17 17 17 16 18 19 18 17 17 19 14 16 17 16 16 16 17 14 14 14 14 Clouds B2 B2 B2 B2 B1 SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC SC B2 PoP 12hr 60 40 40 30 50 QPF 12hr 0.25 0.24 0.15 0.14 0.11 Rain shwrs C C L C C C C C C C S S C C C C C C S S C Tstms S S S S S S Obvis H H Heat index 100103106100 96 95 92 92100105106100 94 92 90 89 98103105100 94 Max heat 100 106 106 96 100 106 105 93 98 105 105 Heat Y Y Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 91 81 92 81 91 81 92 Temp 82 87 91 84 82 88 92 85 82 87 91 84 82 88 92 85 Dewpt 77 76 76 76 77 76 76 76 77 77 76 76 76 76 76 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN BZ GN Avg clouds B2 B1 B1 SC SC SC SC SC B1 B1 SC SC B1 B1 SC SC PoP 12hr 50 40 10 40 40 40 40 50 Rain shwrs C C C C S S S C C C C C C C C C Tstms S S S $$ VIZ002-032000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sun Aug 3 2025 Date Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 79 90 79 89 Temp 85 89 90 87 83 81 80 80 86 89 90 87 83 81 80 80 85 88 89 86 82 Dewpt 77 78 77 77 76 76 76 76 77 78 76 76 76 76 76 75 76 76 76 76 75 RH 77 70 66 72 80 85 88 88 75 70 64 70 80 85 88 85 75 68 66 72 79 Wind dir E E E E E E E E E E E E E E E E E E E NE NE Wind spd 17 17 18 14 14 16 14 14 16 19 14 16 16 14 16 14 16 16 14 14 13 Clouds B2 B1 B2 B1 B1 SC SC SC SC B1 SC SC SC SC SC SC SC SC SC SC B2 PoP 12hr 60 40 40 30 50 QPF 12hr 0.23 0.20 0.14 0.14 0.11 Rain shwrs C C L C C C S C C C S S C C C C C C S S C Tstms S S S S S Obvis H H H Heat index 96103103 99 91 87 86 86 97103102 98 91 87 86 85 94 99100 96 89 Max heat 96 105 102 90 97 105 100 89 94 100 99 Heat Y Y Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 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 90 78 89 78 90 Temp 80 86 90 82 79 85 90 82 79 85 89 82 79 85 90 83 Dewpt 75 76 75 75 75 76 75 75 75 76 76 76 75 76 76 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN BZ Avg clouds B2 B1 B1 SC SC SC SC SC SC SC FW FW SC SC SC SC PoP 12hr 50 40 10 30 30 20 30 50 Rain shwrs C C C C S S S C C C S S S C C C Tstms S S S $$