Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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136 FOCA52 TJSJ 300903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Wed Jul 30 2025 PRZ001-302000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Wed Jul 30 2025 Date Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 90 Temp 86 89 90 87 83 81 79 80 86 89 90 87 83 81 80 80 86 89 90 87 83 Dewpt 74 74 74 74 75 74 74 74 75 74 75 75 75 75 76 75 76 76 77 77 76 RH 68 61 60 65 77 79 85 82 70 61 62 68 77 82 88 85 72 66 66 72 80 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 8 13 13 12 11 10 8 5 9 13 14 13 11 10 10 10 12 17 16 13 11 Clouds SC SC SC SC SC SC SC SC SC B1 B2 B2 SC SC B2 B2 B2 B2 B2 B2 B1 PoP 12hr 20 20 50 50 50 QPF 12hr 0.03 0.04 0.33 0.21 0.25 Rain shwrs S S S S S C C C C C C C C C C C C Tstms S S S S Heat index 93 98 99 96 90 86 83 85 94 99100 97 89 87 84 85 96101103 98 91 Max heat 93 99 100 89 94 100 100 88 96 103 102 Heat Y Y Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 88 79 90 79 87 79 89 Temp 80 85 88 82 80 86 90 83 80 84 87 82 79 85 89 82 Dewpt 76 76 78 76 77 77 76 75 75 75 76 76 76 76 76 76 PWind dir E E SE SE SE E E E Wind char GN GN LT GN LT GN GN GN Avg clouds B1 B2 B1 B2 SC SC FW SC FW FW SC B2 SC SC SC B2 PoP 12hr 60 80 50 20 40 70 40 70 Rain shwrs L L D D C C S S S C L L C C L L Tstms C C S S S S $$ PRZ002-302000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Wed Jul 30 2025 Date Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 79 90 80 89 Temp 87 90 91 88 83 81 79 80 86 89 90 88 83 82 81 81 86 88 89 87 84 Dewpt 74 74 74 75 75 74 74 74 75 75 76 75 75 76 76 76 77 78 77 78 77 RH 65 60 58 66 77 79 85 82 70 64 64 66 77 82 85 85 75 72 68 75 80 Wind dir E E E NE E E E E E E E E E E E E E E E E E Wind spd 10 12 12 12 12 12 10 10 11 13 13 13 13 11 13 14 16 17 14 13 12 Clouds SC SC SC B1 SC SC SC SC SC B1 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 40 30 50 60 60 QPF 12hr 0.16 0.05 0.17 0.23 0.28 Rain shwrs S S C C S S S S C C C C C C C C L L C C C Tstms S S S S Heat index 95100101 98 90 86 84 85 94101101 97 91 89 86 87 96102102 99 94 Max heat 95 102 101 89 94 102 101 90 96 102 102 Heat Y Y Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 82 89 76 87 77 88 80 89 Temp 82 86 89 80 77 83 87 80 78 84 88 83 80 86 89 83 Dewpt 76 77 78 76 77 77 77 76 76 76 76 76 76 76 76 76 PWind dir E E SE SE E E E E Wind char GN GN LT GN GN GN GN GN Avg clouds B2 B2 B1 B2 B2 B2 SC SC SC SC B1 B2 SC SC SC B1 PoP 12hr 60 70 60 60 60 80 50 60 Rain shwrs L L L L L L L L C L D D C C L L Tstms S S S S S S S C C S S $$ PRZ007-302000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Wed Jul 30 2025 Date Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 77 91 78 91 Temp 85 90 91 88 82 79 78 79 85 90 91 88 82 80 79 79 86 90 91 87 82 Dewpt 73 75 75 75 73 72 72 71 73 76 76 75 72 71 72 72 73 71 73 73 73 RH 67 62 60 66 74 79 82 77 67 64 62 66 72 74 79 79 65 54 56 63 74 Wind dir E SE SE SE E NE NE NE E E SE E E E E E E E E E E Wind spd 4 12 18 13 8 6 4 4 5 14 13 13 10 5 5 8 12 16 14 13 8 Wind gust 31 25 26 25 Clouds SC SC SC SC SC SC SC SC SC SC B1 B1 SC SC B2 B2 B1 B1 B1 B1 SC PoP 12hr 20 10 40 50 40 QPF 12hr 0.04 0.02 0.08 0.18 0.19 Rain shwrs S S S S S S S S C C S S C C C C C C C Heat index 92100102 97 87 83 92 95 99 93 87 84 83 93 97 99 94 87 Max heat 92 102 101 86 92 99 98 86 93 99 99 Heat Y Y Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 89 77 89 78 88 77 90 Temp 78 84 89 81 78 84 89 82 79 84 88 81 78 85 90 81 Dewpt 72 72 72 74 73 74 74 72 73 69 68 71 71 72 70 73 PWind dir NE E E SE E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC SC SC SC SC FW FW SC B2 SC SC SC SC PoP 12hr 30 30 20 40 10 80 20 30 Rain shwrs C C C C S C C C S S D D S S C C Tstms C C $$ PRZ008-302000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Wed Jul 30 2025 Date Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 76 89 76 89 Temp 84 89 90 87 81 78 77 78 84 88 89 86 80 78 77 77 84 88 89 85 81 Dewpt 74 74 74 74 74 75 75 75 74 74 75 75 74 75 75 75 75 76 76 76 76 RH 72 61 60 65 79 91 94 91 72 63 64 70 82 91 94 94 74 68 66 75 85 Wind dir E NE NE E E E E E E E E E E E E E E E E E E Wind spd 9 12 19 18 18 17 13 11 12 11 14 12 9 14 11 10 11 10 20 19 18 Clouds SC SC SC SC SC SC SC SC SC SC B2 B2 SC SC SC SC SC SC B2 B2 SC PoP 12hr 10 0 50 20 60 QPF 12hr 0.02 0 0.31 0.04 0.48 Rain shwrs S C C S S S S S S L L C Tstms S S S S Heat index 92 98 99 95 86 91 97 99 94 85 92 99101 94 87 Max heat 92 99 100 84 91 99 98 84 92 101 100 Heat Y Y Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 88 77 86 78 88 78 88 Temp 78 84 88 81 78 83 86 81 78 84 88 81 79 84 88 81 Dewpt 77 76 76 76 77 75 76 75 75 74 76 75 76 75 75 74 PWind dir E E E E SE E E E Wind char BZ BZ GN GN LT GN GN BZ Avg clouds SC SC SC B1 CL FW SC B1 FW FW SC B2 SC SC SC B1 PoP 12hr 30 70 10 50 5 60 30 60 Rain shwrs C S L L S L L S S L L C C L L Tstms S S S S S S S S $$ PRZ010-302000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Wed Jul 30 2025 Date Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 93 76 93 Temp 86 92 94 89 81 78 76 77 86 92 93 89 82 79 77 78 87 92 93 87 81 Dewpt 75 77 77 77 75 74 74 72 75 77 78 77 76 75 73 73 76 78 79 79 77 RH 70 62 58 68 82 88 94 85 70 62 62 68 82 88 87 85 70 64 64 77 88 Wind dir E E S SE NE NE E E E E SW E E E E E E E E E E Wind spd 2 3 4 5 11 13 8 4 4 2 6 5 1 6 5 4 5 3 2 2 2 Clouds SC SC SC B2 SC SC SC SC SC SC OV OV SC SC SC SC SC SC OV OV B1 PoP 12hr 60 30 70 20 70 QPF 12hr 0.45 0.12 0.90 0.04 0.71 Rain shwrs C L C L L S S S S S S L L C Tstms S S S S Heat index 95106109102 88 95105109101 89 83 97107110102 88 Max heat 95 109 108 86 95 109 108 86 97 110 109 Heat Y Y Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 91 75 91 75 93 76 93 Temp 76 85 91 80 76 85 91 80 76 86 93 82 77 87 93 82 Dewpt 76 76 80 77 76 77 79 76 75 76 79 77 74 76 78 76 PWind dir E E E SE SE E E E Wind char LT LT LT GN LT LT LT LT Avg clouds SC FW SC B1 CL CL SC B1 CL CL SC B1 SC FW SC B1 PoP 12hr 40 80 0 70 5 70 20 60 Rain shwrs C S D D L L L L S S L L Tstms C C S S S S S S $$ VIZ001-302000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Wed Jul 30 2025 Date Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 80 90 80 91 Temp 87 91 92 89 84 82 80 81 86 89 90 88 83 82 81 81 87 90 91 88 84 Dewpt 75 74 75 76 76 76 76 76 75 76 75 75 76 77 78 77 78 78 78 78 78 RH 68 58 58 66 77 82 88 85 70 66 62 66 80 85 91 88 75 68 66 72 82 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 16 17 14 17 19 18 17 16 16 18 16 18 17 18 20 21 23 20 20 18 20 Clouds SC SC B1 B1 SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 B1 B2 B2 SC PoP 12hr 40 40 40 40 50 QPF 12hr 0.13 0.05 0.10 0.16 0.18 Rain shwrs S S C C S S C C C C C C C C C C C C S Tstms S S Heat index 97101103100 93 89 86 88 95101102 98 92 90 88 88 99105106101 95 Max heat 97 103 105 92 95 102 101 91 99 106 105 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 90 80 85 79 88 80 91 Temp 82 87 90 83 81 83 85 81 79 85 88 83 80 87 91 84 Dewpt 78 78 78 78 77 78 77 77 77 77 77 77 77 77 76 76 PWind dir E E SE SE E E E E Wind char BZ BZ GN BZ BZ GN BZ BZ Avg clouds SC SC SC B1 B2 B2 SC SC SC SC SC SC SC SC SC B1 PoP 12hr 50 60 60 50 60 60 50 60 Rain shwrs C C C L L L C C C L L C C C L L Tstms S S S S S S S $$ VIZ002-302000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Wed Jul 30 2025 Date Wed 07/30/25 Thu 07/31/25 Fri 08/01/25 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 78 91 80 91 Temp 86 91 92 89 83 80 79 80 86 90 91 88 84 82 81 81 87 90 91 87 83 Dewpt 74 74 74 75 75 75 75 74 75 75 76 75 75 76 76 76 77 77 77 77 76 RH 68 58 56 64 77 85 88 82 70 62 62 66 74 82 85 85 72 66 64 72 80 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 17 14 14 16 19 17 13 13 14 16 17 16 13 16 17 18 19 19 20 18 17 Clouds SC SC B1 SC B2 B2 SC SC B1 SC SC SC B1 B1 SC SC B1 B1 SC SC B1 PoP 12hr 50 50 40 40 40 QPF 12hr 0.17 0.14 0.11 0.11 0.12 Rain shwrs S C C C C C C C C S C C C C C C C C C C C Heat index 94100102 99 90 86 84 95101102 98 91 89 87 87 98104104 99 91 Max heat 94 103 102 89 95 102 102 90 98 104 103 Date Sat 08/02/25 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 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 89 79 87 78 89 79 90 Temp 80 85 89 82 80 84 87 81 79 85 89 82 80 86 90 83 Dewpt 76 77 77 76 77 77 76 76 76 76 76 76 76 76 76 76 PWind dir E E SE SE E E E E Wind char BZ GN GN BZ GN BZ BZ BZ Avg clouds B1 B1 SC B1 B2 B2 SC B1 B2 B1 SC SC SC SC SC B1 PoP 12hr 50 60 60 60 60 60 50 60 Rain shwrs C C C L L L C L L L L C C C L L Tstms S S S S S S S S S $$