Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
059 FOCA52 TJSJ 130903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Mon Oct 13 2025 PRZ001-132000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Mon Oct 13 2025 Date Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 91 77 91 Temp 85 90 91 85 83 81 80 79 86 90 91 84 81 79 78 77 85 90 91 85 82 Dewpt 74 74 74 75 75 75 74 75 75 75 75 75 74 74 74 74 74 74 75 75 74 RH 70 60 58 72 77 82 82 88 70 62 60 74 79 85 88 90 70 60 60 72 77 Wind dir E E E E E E E E E E E E E SE SE S S SE SE W W Wind spd 9 13 14 12 10 8 8 8 9 12 13 10 6 4 3 3 5 4 3 4 2 Clouds SC SC B1 SC B1 B1 B1 B1 B1 B1 B2 B2 SC SC SC SC SC SC OV OV B2 PoP 12hr 40 50 60 30 80 QPF 12hr 0.11 0.25 0.43 0.12 1.71 Rain shwrs C C C C C C C C C C L L C C C C C C D D L Tstms S S C C S Heat index 93 99101 94 90 87 84 95101102 92 86 83 92 99102 93 88 Max heat 93 102 99 89 95 103 101 85 92 102 100 Date Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 Sun 10/19/25 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 78 90 77 90 77 90 77 90 Temp 79 85 90 81 78 84 90 81 78 84 90 81 78 84 90 82 Dewpt 74 74 75 74 74 74 76 74 74 74 76 74 74 75 76 75 PWind dir SW W SW W SW E SE E Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC B1 B1 SC SC SC B1 SC SC B1 B1 SC SC SC B1 PoP 12hr 60 60 10 50 30 40 30 40 Rain shwrs L S L L S S C C S C C C C C C C Tstms S S S S S $$ PRZ002-132000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Mon Oct 13 2025 Date Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 79 89 77 89 Temp 85 88 89 84 82 81 80 79 85 88 89 83 81 79 78 77 84 88 89 84 81 Dewpt 76 76 76 76 75 76 76 76 77 77 76 76 76 75 74 75 76 76 76 76 75 RH 75 68 66 77 79 85 88 91 77 70 66 80 85 88 88 94 77 68 66 77 82 Wind dir E E E E E E NE E E E E E E E E SE SE S S S SW Wind spd 13 14 11 11 10 10 10 9 10 11 10 8 6 5 5 4 5 9 10 9 5 Clouds B1 B1 SC SC B2 B1 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC B1 B1 B2 PoP 12hr 50 50 50 40 50 QPF 12hr 0.14 0.30 0.23 0.16 0.26 Rain shwrs C C C C C C C C C C C C C C C C C C C C C Tstms S Heat index 94 99100 93 89 87 85 96100100 91 87 83 92 99100 92 87 Max heat 94 100 99 88 96 102 99 85 92 100 99 Date Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 Sun 10/19/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 88 77 89 76 88 77 89 Temp 79 84 88 80 78 84 89 80 77 83 88 80 78 84 89 81 Dewpt 76 77 76 76 75 77 77 76 75 77 76 76 75 77 76 76 PWind dir SW SW SW SW SW SE E E Wind char LT GN LT LT LT LT LT GN Avg clouds B1 SC B1 SC SC SC SC SC SC SC SC SC B1 SC SC B1 PoP 12hr 50 40 10 20 10 40 40 50 Rain shwrs C C C C S S S S S S S C C C C C Tstms S S S $$ PRZ007-132000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Mon Oct 13 2025 Date Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 76 90 76 89 Temp 85 90 91 84 81 79 77 76 84 89 90 83 80 78 77 76 83 88 89 83 80 Dewpt 75 76 77 76 75 74 73 73 75 77 78 77 76 74 73 73 75 77 77 77 76 RH 72 64 64 77 82 85 87 90 74 68 68 82 88 88 87 90 77 70 68 82 88 Wind dir E E SE E NE NE NE NE E SE SE SE E E E E E SE S S SW Wind spd 5 13 12 11 8 4 4 5 4 12 9 6 4 4 3 3 3 6 6 3 1 Clouds FW SC SC SC SC FW SC SC SC SC SC SC SC SC B2 B2 B1 B1 SC SC SC PoP 12hr 10 30 30 50 40 QPF 12hr 0.02 0.05 0.14 0.15 0.10 Rain shwrs S S S S S S C S C C S S C C C C S S C Heat index 94102105 93 87 92102105 92 86 91100101 91 85 Max heat 94 105 103 84 92 105 103 84 91 102 100 Date Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 Sun 10/19/25 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 89 76 90 76 90 76 90 Temp 77 83 89 80 77 84 90 80 77 84 90 80 77 84 90 80 Dewpt 73 76 77 76 74 76 78 76 73 75 78 77 74 76 78 77 PWind dir W SW W SW N SE NE NE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 40 20 30 20 30 10 40 Rain shwrs C C C C S S C C S S C C S S C C Tstms S S $$ PRZ008-132000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Mon Oct 13 2025 Date Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 76 88 75 87 Temp 83 87 88 82 80 78 77 76 83 87 88 82 79 77 76 75 82 86 87 81 79 Dewpt 73 74 76 75 75 75 73 73 75 76 76 75 75 74 74 72 74 75 75 75 74 RH 72 65 68 79 85 91 87 90 77 70 68 79 88 90 94 90 77 70 68 82 85 Wind dir E E E E E E E E E E E NE E SE SE SE S SW SW SW SW Wind spd 9 6 11 16 17 12 12 11 12 10 3 2 2 2 2 3 5 6 14 12 10 Clouds FW FW SC B1 SC FW SC B1 SC SC OV OV B1 B1 FW FW FW FW B2 B2 FW PoP 12hr 40 40 80 40 60 QPF 12hr 0.15 0.09 1.28 0.06 0.55 Rain shwrs C C S S C S S D D C C L L Tstms C C S S Heat index 89 95 99 89 85 90 98 99 89 88 95 96 87 Max heat 89 99 98 90 100 98 88 96 95 Date Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 Sun 10/19/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 86 76 87 76 87 75 87 Temp 76 81 86 79 77 82 87 79 77 82 87 79 76 82 87 79 Dewpt 73 75 76 74 74 75 76 74 73 74 76 75 74 74 76 75 PWind dir SW SW SW SW S NE E E Wind char GN GN GN GN LT LT GN GN Avg clouds SC B1 B1 SC SC SC B1 B1 B1 SC SC B1 SC SC SC B2 PoP 12hr 40 40 40 40 40 60 10 60 Rain shwrs C C C C S C C C C C L L S S L L Tstms S S S S $$ PRZ010-132000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Mon Oct 13 2025 Date Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 74 92 74 92 Temp 84 91 92 83 79 77 75 74 85 91 93 84 80 77 75 74 84 91 92 84 80 Dewpt 75 76 77 77 76 75 73 73 76 77 78 77 76 75 74 73 76 77 78 76 75 RH 74 62 62 82 91 94 94 97 75 64 62 80 88 94 97 97 77 64 64 77 85 Wind dir NE E NW E E E NE E E S S NE E E SE SE SE S S S S Wind spd 3 1 4 5 5 5 5 4 5 3 5 3 4 3 3 3 6 9 12 10 6 Clouds FW FW B2 OV B2 FW FW SC FW FW OV OV B2 B2 FW FW SC SC B1 B1 SC PoP 12hr 100 60 90 50 40 QPF 12hr 1.70 0.32 1.91 0.10 0.17 Rain shwrs C D L S D D C C S S C C S Tstms S C S C C S S Heat index 92103106 92 94105109 94 86 93104107 92 85 Max heat 92 106 103 94 109 106 93 107 105 Date Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 Sun 10/19/25 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 92 74 92 74 92 Temp 76 84 91 80 76 85 92 79 75 84 92 79 75 84 92 79 Dewpt 75 76 78 76 75 76 79 76 74 76 78 76 74 76 78 76 PWind dir S SW SW SW SE S E E Wind char LT GN LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC SC B1 B1 SC SC SC B1 SC FW SC B1 PoP 12hr 40 60 30 50 30 60 10 60 Rain shwrs C C L L S C C C C C L L S S L L Tstms S S S S S S S S $$ VIZ001-132000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Mon Oct 13 2025 Date Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 82 90 81 89 Temp 87 90 91 87 85 84 83 82 86 89 90 86 84 83 82 81 85 88 89 85 83 Dewpt 76 77 77 76 77 78 77 77 77 78 77 76 76 76 76 76 76 76 77 77 76 RH 70 66 64 70 77 82 82 85 75 70 66 72 77 80 82 85 75 68 68 77 80 Wind dir E E E E E E E E E E E E E E E SE SE S S S SW Wind spd 18 16 16 16 17 18 17 16 14 12 12 10 9 10 10 9 9 10 11 12 10 Clouds SC B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 SC PoP 12hr 40 40 40 30 40 QPF 12hr 0.14 0.20 0.20 0.07 0.12 Rain shwrs S C C C C C C C C C C C C C C C S S C C S Heat index 98103105 98 96 94 91 90 97103103 96 93 90 89 87 95100101 96 92 Max heat 98 105 105 94 97 103 102 92 95 101 101 Date Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 Sun 10/19/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 89 81 90 81 90 82 90 Temp 82 85 89 83 82 86 90 84 82 86 90 84 83 86 90 84 Dewpt 77 77 77 77 77 78 78 77 77 77 77 77 77 77 77 77 PWind dir SW SW SW SW SW S E E Wind char GN GN GN GN LT LT GN GN Avg clouds SC SC SC SC SC SC SC B1 B1 B1 SC SC B1 SC SC SC PoP 12hr 30 30 20 50 40 40 40 30 Rain shwrs C C C C S S C C C C S C C C C C Tstms S S $$ VIZ002-132000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Mon Oct 13 2025 Date Mon 10/13/25 Tue 10/14/25 Wed 10/15/25 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 89 77 89 Temp 85 89 90 84 81 79 78 77 84 88 89 83 81 79 78 77 84 88 89 84 81 Dewpt 76 76 77 76 76 76 76 76 77 77 76 75 75 74 74 75 76 76 76 75 75 RH 75 66 66 77 85 91 94 97 80 70 66 77 82 85 88 94 77 68 66 74 82 Wind dir E E E E E E E E E E E E E E E SE SE S S S S Wind spd 16 16 13 14 14 13 13 12 13 13 10 8 9 9 8 6 6 11 10 9 5 Clouds SC B1 SC SC B1 B2 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 40 50 40 30 30 QPF 12hr 0.13 0.23 0.18 0.06 0.08 Rain shwrs C C C C C C C C C C C C C C S S S S C C S Heat index 94100103 93 87 84 94100100 90 87 83 92 99100 91 87 Max heat 94 103 100 86 94 102 99 85 92 101 99 Date Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 Sun 10/19/25 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 78 88 78 90 77 90 77 90 Temp 79 84 88 81 79 85 90 81 78 84 90 81 78 84 90 81 Dewpt 76 77 77 76 76 78 78 77 76 77 77 76 76 77 77 76 PWind dir S SW SW SW S SE E E Wind char LT GN GN GN LT LT GN GN Avg clouds SC SC SC SC SC SC SC B2 B2 B2 B1 SC SC SC SC SC PoP 12hr 20 30 30 60 60 50 20 40 Rain shwrs S S S C C C C L L L C S S S S C Tstms S S S S $$